WO2010055587A1 - Optical element adjusting/holding mechanism - Google Patents

Optical element adjusting/holding mechanism Download PDF

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Publication number
WO2010055587A1
WO2010055587A1 PCT/JP2008/070866 JP2008070866W WO2010055587A1 WO 2010055587 A1 WO2010055587 A1 WO 2010055587A1 JP 2008070866 W JP2008070866 W JP 2008070866W WO 2010055587 A1 WO2010055587 A1 WO 2010055587A1
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WO
WIPO (PCT)
Prior art keywords
axis
adjustment
optical element
sliding member
adjusted
Prior art date
Application number
PCT/JP2008/070866
Other languages
French (fr)
Japanese (ja)
Inventor
博 山本
Original Assignee
Hoya株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoya株式会社 filed Critical Hoya株式会社
Priority to JP2010537653A priority Critical patent/JP5384517B2/en
Priority to PCT/JP2008/070866 priority patent/WO2010055587A1/en
Publication of WO2010055587A1 publication Critical patent/WO2010055587A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • G02B7/004—Manual alignment, e.g. micromanipulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/44—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements
    • B41J2/442—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source per colour, e.g. lighting beams or shutter arrangements using lasers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/082—Aligning the head or the light source relative to the record carrier otherwise than during transducing, e.g. adjusting tilt set screw during assembly of head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Definitions

  • the present invention relates to an optical element adjustment holding mechanism that adjusts and holds an adjusted component to which an optical element is attached, and more specifically, smooth movement of an adjusted component to facilitate fine adjustment of the position of the optical element.
  • the present invention relates to an optical element adjustment holding mechanism that realizes adjustment.
  • Various optical elements are mounted on an optical device such as a laser printer, an optical pickup device, or a projector using a semiconductor laser as a light source.
  • an optical element such as a laser printer, an optical pickup device, or a projector using a semiconductor laser as a light source.
  • Examples of such an optical element include a laser light source and a light receiving sensor.
  • the position of the optical element is finely adjusted using a jig or the like at the manufacturing stage so that the optical device satisfies a predetermined specification.
  • Japanese Utility Model Laid-Open No. 1-85914 discloses a position adjustment mechanism of a light receiving sensor mounted on an optical pickup device.
  • Japanese Utility Model Laid-Open No. 1-85914 is referred to as “Document 1”.
  • the substrate on which the light receiving sensor is mounted is pressed against the side surface of the optical pickup main body by the holding head that holds the substrate.
  • the position of the substrate relative to the optical pickup body that is, the position of the light receiving sensor is adjusted by moving the holding head in a two-dimensional direction on a plane parallel to the substrate mounting surface.
  • a metal having superior dimensional stability as compared with a resin may be used as a material for a holding part that holds an optical element and its peripheral parts.
  • the metal holding component is manufactured by cutting using a milling machine, for example.
  • periodic cutting marks corresponding to the feed pitch of the cutting tool remain on the cutting surface of the part.
  • the optical pickup body of Document 1 is a metal part.
  • the cutting traces on the side surface bite into the substrate and the substrate cannot be smoothly slid relative to the side surface. Is done. If the substrate cannot be slid smoothly with respect to the side of the optical pickup body even though finer fine adjustments are required due to higher capacity and higher performance of the product, the board for the optical pickup body There is an inconvenience that it is difficult to finely adjust the position of the (light receiving sensor). Such smooth sliding of the substrate becomes more difficult as the cutting traces remain.
  • the material of both the optical pickup main body and the component to be adjusted may be selected as aluminum or the like. Smooth sliding in a state where aluminum is brought into close contact with each other is difficult, and a simple improvement measure is desired from such a viewpoint.
  • the present invention has been made in view of the above circumstances, and its object is a simple configuration that effectively suppresses an increase in processing costs, and it is also possible to perform processing finishing on a smooth surface state.
  • An optical element that can be expected to have an improvement effect on difficult parts (eg, a shape approximating a V-groove for mounting a lens frame), as well as an improvement effect on the configuration when using materials that are not suitable for smooth sliding adjustment.
  • An optical element position adjustment mechanism suitable for fine position adjustment is provided.
  • the optical element adjustment holding mechanism that solves the above-described problem is an adjustment holding mechanism that adjusts and holds a component to be adjusted to which the optical element is attached.
  • the optical element adjustment holding mechanism has a base on which the component to be adjusted is fixed by screwing.
  • the optical element adjusting and holding mechanism includes the base and the object to be adjusted so that the object to be adjusted can be moved relative to the base before the part to be adjusted is fixed to the base by tightening a screw.
  • a sliding member having a lower surface friction resistance than the base or the component to be adjusted is interposed between the adjustment component and the adjustment component. By interposing the sliding member in this way, direct friction between the base and the component to be adjusted is effectively avoided, and at the same time, the base and the component to be adjusted slide with the sliding member having a low frictional resistance. Moves smoothly.
  • the sliding member has a through hole through which, for example, a screw is inserted. It is desirable that the through hole has substantially the same diameter as the screw so that the movement of the sliding member relative to the base is restricted.
  • the sliding member is preferably a pressed product obtained by pressing (punching) a sheet metal material in consideration of low frictional resistance and ease of processing. May be adapted.
  • the optical element adjustment holding mechanism is a movement restricting plate arranged between the base and the component to be adjusted, and in the first stage, the screw is finally tightened to fix the component to be adjusted to the base.
  • it may be configured to further include a movement restricting plate that is supported by the base so as to be movable only while supporting the component to be adjusted only in a second direction orthogonal to the first direction.
  • the movement restricting plate and the component to be adjusted for example, between the base and the movement restricting plate and the movement restricting plate. They are respectively interposed between the parts to be adjusted.
  • FIG. 1 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 100 according to the first embodiment of the present invention.
  • FIG. 2 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 100 of the first embodiment at a different angle from FIG.
  • illustration of some components is omitted to simplify the drawing.
  • the optical element adjustment holding mechanism 100 is an adjustment holding mechanism mounted on, for example, a laser printer, and a laser diode (hereinafter referred to as “LD”) 1 that is adjusted as necessary, and the same. Holds peripheral parts.
  • the direction parallel to the reference axis AX of the optical element adjustment holding mechanism 100 is defined as the Z-axis direction, and the two axes orthogonal to the Z-axis direction and orthogonal to each other are the X-axis direction and the Y-axis, respectively. Defined as direction.
  • the optical element adjustment holding mechanism 100 has a main body member 2 for holding a lens unit (not shown).
  • a Y-axis sliding member 3, a Y-axis adjusting plate 4, an X-axis sliding member 5, and an X-axis adjusting plate 6 are arranged on the receiving surface 2s of the main body member 2 in order from the receiving surface 2s side. .
  • four screws 7 pass through holes of respective parts of the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6 through the LD adjustment washer 8.
  • the relief shape is passed through and screwed into the screw hole 2 a of the main body member 2.
  • the spring washer is used to fix each component (that is, the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6) to the main body member 2 with the screws 7.
  • a plain washer 10 is used.
  • an LD relay substrate 11 which is a PCB (Printed Circuit Board), for example, is mounted on the back surface of the LD 1 that is a position adjustment target.
  • the LD 1 is press-fitted into a through hole on the reference axis AX of the X-axis adjustment plate 6, and is fixed to the X-axis adjustment plate 6 together with the LD relay substrate 11.
  • the LD 1 is connected to an LD driving circuit mounted on the LD driving substrate 12 via a circuit pattern on the LD relay substrate 11 and a jumper line (not shown).
  • the LD drive substrate 12 is attached to the main body member 2 with screws 14 through spacers 13.
  • FIG. 3 and 4 are diagrams for explaining the position adjustment of the LD 1 of the optical element adjustment holding mechanism 100 of the first embodiment.
  • 3 and 4 are perspective views showing a state in which the optical element adjustment holding mechanism 100 according to the first embodiment is assembled.
  • each figure of FIG. 3 and FIG. 4 is a stage before adjusting the position of LD1, and the screw 7 remains in the temporarily tightened state.
  • the stage before the position adjustment of the LD 1 is referred to as an “assembling provisional state”
  • the state where the position adjustment of the LD 1 is performed and the screw 7 is finally tightened is referred to as an “assembly completion state”.
  • the illustration of the LD drive substrate 12, the spacer 13, and the screw 14 is omitted to simplify the drawing as in FIG.
  • the outer shape of each component of the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6 is the receiving surface of the main body member 2. It is formed so as to escape the jig insertion hole 2b formed in 2s. Therefore, the jig insertion hole 2b is exposed to the outside in the provisional assembly state (and the assembly completion state).
  • the amount of relief with respect to the jig insertion hole 2b is the smallest in the U groove 4u formed in the Y-axis adjusting plate 4 among the components.
  • the U groove 4u has inner wall surfaces that are parallel to the X direction and face each other. The distance (groove width) between the inner wall surfaces is a distance d 1 as shown in FIG.
  • a jig pin 4a and a reference pin 4b are press-fitted into a pair of upper and lower through holes formed in the Y-axis adjusting plate 4, respectively.
  • the jig pin 4a and the reference pin 4b are not only the surface (receiving surface 4c) side of the Y-axis adjusting plate 4 visible in the figure but also the back surface ( It also protrudes to the receiving surface 4d) side.
  • the jig pin 4a and the reference pin 4b protruding to the receiving surface 4d side of the Y-axis adjusting plate 4 are formed on the receiving surface 2s of the main body member 2 through the through-holes 3a of the Y-axis sliding member 3, respectively.
  • the pair of guide long holes 2c are inserted.
  • the long side of the guide elongated hole 2c is parallel to the Y-axis direction.
  • the width in the X-axis direction between the long sides is substantially the same as the diameters of the jig pin 4a and the reference pin 4b. Therefore, the Y-axis adjustment plate 4 is moved in the Y-axis direction while being restricted (prohibited) in the X-axis direction by the guide slot 2c via the jig pin 4a and the reference pin 4b in the temporarily assembled state. A certain amount is allowed.
  • the through hole 3a is formed so as to escape the guide long hole 2c so as not to prevent the movement of the jig pin 4a and the reference pin 4b in the Y-axis direction.
  • the adjustment jig 1000 shown in FIG. 3 is, for example, a metal shaving jig, and has a shaft 1002.
  • An adjustment pin 1004 is formed at the tip end of the shaft 1002 at a position eccentric from the central axis of the shaft 1002.
  • the adjustment pin 1004 is inserted into the jig insertion hole 2b of the main body member 2 in order to adjust the position of the LD 1 in the Y-axis direction.
  • the diameter of the shaft 1002 of the adjustment jig 1000 is d11.
  • Groove width d 1 of the U-groove 4u of the Y-axis adjustment plate 4, the diameter d11 of the shaft 1002 is substantially the same size, it is designed plus tolerances. Accordingly, when the adjustment jig 1000 is rotated around the center of the jig insertion hole 2b with the adjustment pin 1004 of the adjustment jig 1000 inserted into the jig insertion hole 2b of the main body member 2, the shaft The outer peripheral surface of 1002 is in contact with any part of the inner wall surface of the U groove 4u by one line.
  • the adjustment pin 1004 of the adjustment jig 1000 has the same diameter as the jig insertion hole 2b of the main body member 2. However, the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 2b.
  • the shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 2b corresponds to the amount of eccentricity around the jig insertion hole 2b, that is, the distance between the central axis of the shaft 1002 and the central axis of the adjustment pin 1004. Rotate eccentrically.
  • the Y-axis adjusting plate 4 When the shaft 1002 of the adjusting jig 1000 is eccentrically rotated, the Y-axis adjusting plate 4 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 4u being pushed by the outer peripheral surface of the shaft 1002. It is moved in the minute Y-axis direction.
  • the X-axis adjusting plate 6 has a shaft hole 6a for receiving the reference pin 4b. That is, the X-axis adjusting plate 6 is pivotally supported by the reference pin 4b.
  • the Y-axis adjustment plate 4 when the Y-axis adjustment plate 4 is moved in the Y-axis direction using the adjustment jig 1000, the X-axis adjustment plate 6, the X-axis adjustment plate 6 and the Y-axis supported by the Y-axis adjustment plate 4 are supported.
  • the X-axis sliding member 5 held between the adjustment plate 4 and the LD 1 and LD relay substrate 11 attached to the X-axis adjustment plate 6 move integrally with the Y-axis adjustment plate 4 in the Y-axis direction.
  • the through hole 3b of the Y-axis sliding member 3 through which the screw 7 is inserted is formed to have substantially the same diameter as the screw diameter of the screw 7.
  • the through-hole 3b functions as a stopper that controls the movement of the Y-axis sliding member 3 by contacting the screw 7 when the Y-axis sliding member 3 is about to move as the Y-axis adjusting plate 4 moves, for example. To do.
  • the X-axis adjusting plate 6 In the pre-assembled state, the X-axis adjusting plate 6 is in a state of being rotatably supported around the reference pin 4b with respect to the Y-axis adjusting plate 4 through the shaft hole 6a. Since the curvature of the motion trajectory when the X-axis adjustment plate 6 is rotated is large, the movement of the X-axis adjustment plate 6 due to the rotation can be substantially regarded as the movement in the X-axis direction. In order to rotate the X-axis adjusting plate 6, an adjusting jig 2000 shown in FIG. 4 is used.
  • the through holes 5a and 5b of the X-axis sliding member 5 through which the jig pin 4a and the reference pin 4b are inserted have substantially the same diameter as the jig pin 4a and the reference pin 4b, respectively. Yes.
  • the through-holes 5a and 5b contact the jig pin 4a and the reference pin 4b when the X-axis sliding member 5 is about to move as the X-axis adjusting plate 6 moves, for example. 5 functions as a stopper for restricting the movement of 5.
  • the X-axis adjustment plate 6 has a U groove 6 u formed so as to escape the jig pin 4 a of the Y-axis adjustment plate 4. For this reason, the jig pin 4a is exposed to the outside in the provisional assembly state (and the assembly completion state).
  • the U groove 6u has inner wall surfaces that are parallel to the Y direction and face each other. The distance (groove width) between the inner wall surfaces is a distance d 2 as shown in FIG.
  • the adjustment jig 2000 is, for example, a metal shaving jig similar to the adjustment jig 1000 and has a shaft 2002.
  • the diameter of the shaft 2002 is d22.
  • Groove width d 2 of the U-groove 6u of the X-axis adjustment plate 6 has a diameter d22 of the shaft 2002 is substantially the same size, it is designed plus tolerances. Therefore, when the shaft 2002 of the adjustment jig 2000 is inserted into the U groove 6u, the outer peripheral surface of the shaft 2002 is in contact with any part of the inner wall surface of the U groove 6u in one line.
  • a concave portion having a shape corresponding to the jig pin 4 a is formed on the tip surface of the shaft 2002 at a position eccentric from the central axis of the shaft 2002.
  • the recess has the same diameter as the jig pin 4a.
  • the diameter of the recess is designed with a plus tolerance. Therefore, an operator who uses the adjustment jig 2000 can smoothly turn the jig around the Z axis after fitting the recess to the jig pin 4a.
  • the shaft 2002 in which the concave portion is fitted to the jig pin 4a rotates eccentrically around the jig pin 4a in accordance with the eccentric amount, that is, the distance between the central axis of the shaft 2002 and the central axis of the concave portion.
  • the X-axis adjusting plate 6 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 6u being pushed by the outer peripheral surface of the shaft 2002. It is moved in the minute X-axis direction.
  • the LD 1 and the LD relay substrate 11 attached to the X-axis adjustment plate 6 move in the X-axis direction integrally with the X-axis adjustment plate 6.
  • the position of the LD 1 is finely adjusted in the X-axis direction or the Y-axis direction.
  • the screw 7 is finally tightened to fix the position of LD1 with respect to the main body member 2, and the operation is completed.
  • each part of the main body member 2, the Y-axis adjusting plate 4, and the X-axis adjusting plate 6 is a metal part having excellent dimensional stability.
  • the material of each component may be stainless steel or iron. Therefore, the receiving surface 2s of the main body member 2, the receiving surfaces 4c and 4d of the Y-axis adjusting plate 4, the receiving surface 6b of the X-axis adjusting plate 6 (the X-axis sliding not visible in FIG. 1 or 2 of the X-axis adjusting plate 6).
  • cutting traces by cutting remain on each surface of the surface facing the moving member 5.
  • the Y-axis adjustment is caused by an increase in frictional resistance caused by biting of cutting marks between the receiving surfaces.
  • the movement of the plate 4 in the Y-axis direction or the movement of the X-axis adjustment plate 6 in the X-axis direction is not performed smoothly.
  • a Y-axis sliding member 3 is interposed between the member 2 and the Y-axis adjusting plate 4, and an X-axis sliding member 5 is interposed between the Y-axis adjusting plate 4 and the X-axis adjusting plate 6. That is, the Y-axis adjusting plate 4 and the X-axis adjusting plate 6 are configured to slide with the Y-axis sliding member 3 and the X-axis sliding member 5 when the position of the LD 1 is adjusted by various jigs. Is done.
  • the Y-axis sliding member 3 and the X-axis sliding member 5 are materials having a low surface frictional resistance (a material lower than the frictional resistance of at least the receiving surfaces of the main body member 2, the Y-axis adjusting plate 4, and the X-axis adjusting plate 6). Is formed).
  • each sliding member is a pressed product obtained by pressing a rolled steel plate, a rolled stainless steel plate, a brass plate, or the like.
  • the Y-axis adjusting plate 4 can be moved in the Y-axis direction without the need for surface roughness improvement or polishing finish by machining each receiving surface, or The movement of the X-axis adjusting plate 6 in the X-axis direction becomes smooth.
  • each receiving surface is a surface that is not suitable for smooth sliding adjustment, such as aluminum, the effect of improving the slidability by the sliding member is further exhibited.
  • the Y-axis sliding member 3 has a shape that is substantially similar to the receiving surface 4d so as to slide on substantially the entire receiving surface 4d of the Y-axis adjusting plate 4.
  • the X-axis sliding member 5 has a substantially similar shape to the receiving surface 4c so as to slide on almost the entire receiving surface of the receiving surface 4c of the Y-axis adjusting plate 4 and the receiving surface 6b of the X-axis adjusting plate 6. In addition, it has a shape that covers almost the entire area of the receiving surface 6b.
  • FIG. 5 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 200 according to the second embodiment of the present invention.
  • FIG. 6 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 200 of the second embodiment at a different angle from FIG.
  • the same or similar components as those of the first embodiment are denoted by the same or similar reference numerals, and the description thereof is omitted.
  • the illustration of the LD drive substrate 12, the spacer 13, and the screw 14 is omitted.
  • illustration of the screw 7, the LD adjustment washer 8, the spring washer 9, and the flat washer 10 is omitted to simplify the drawing.
  • the optical element adjustment holding mechanism 200 includes the main body member 2, the Y axis sliding member 3, the Y axis adjustment plate 4, the X axis sliding member 5, and the X of the optical element adjustment holding mechanism 100 according to the first embodiment.
  • the main body member 22, the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 are provided. That is, the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 are arranged so as to overlap the receiving surface 22s of the main body member 22 in this order from the receiving surface 22s side.
  • Each guide portion 24e has a pair of guide surfaces 22d provided on the left and right sides of the main body member 22 so that the surfaces toward the reference axis AX side of the guide portion 24e when the Y-axis adjusting plate 24 is assembled to the main body member 22. Each is guided in surface contact.
  • the Y-axis adjusting plate 24 is allowed to move in the Y-axis direction by a certain amount while the movement in the X-axis direction is restricted (prohibited) by the guide portion 24e being guided by the guide surface 22d. .
  • the upper and lower ends of the Y-axis adjusting plate 24 protrude toward the receiving surface 24c (the surface of the Y-axis adjusting plate 24 visible in FIG. 5 or 6) of the Y-axis adjusting plate 24 and extend in the X-axis direction.
  • a guide portion 24f is formed.
  • the X-axis adjusting plate 26 has a pair of upper and lower end surfaces configured as a guide surface 26c.
  • the X-axis adjustment plate 26 is assembled to the Y-axis adjustment plate 24 via the X-axis sliding member 25.
  • Each guide surface 26c comes into surface contact with each of the pair of upper and lower guide portions 24f when the X-axis adjustment plate 26 is assembled to the Y-axis adjustment plate 24.
  • the X-axis adjusting plate 26 is allowed to move in the X-axis direction by a certain amount while being restricted (prohibited) in the Y-axis direction in the temporarily assembled state.
  • each component of the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 is a jig insertion hole 22b formed in the receiving surface 22s of the main body member 22. It is formed to escape. Therefore, the jig insertion hole 22b is exposed to the outside in the provisional assembly state (and the assembly completion state).
  • the amount of relief with respect to the jig insertion hole 22b is the smallest of the long grooves 24g formed in the Y-axis adjusting plate 24 among the components.
  • the long grooves 24g have inner wall surfaces that are parallel to the X direction and face each other. The distance between such inner wall surface (groove width) is the distance d 1.
  • An adjustment jig 1000 is used to adjust the position of the LD 1 in the optical element adjustment holding mechanism 200 of the second embodiment.
  • An adjustment pin 1004 of the adjustment jig 1000 is inserted into the jig insertion hole 22b of the main body member 22 in order to adjust the position of the LD 1 in the Y-axis direction.
  • the groove width d 1 is adjustment jig 1000
  • the shaft 1002 is designed to have a plus tolerance from the diameter d 11 of the shaft 1002.
  • the jig insertion hole 22 b of the main body member 22 has the same diameter as the adjustment pin 1004 of the adjustment jig 1000.
  • the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 22b.
  • the shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 22b rotates eccentrically corresponding to the amount of eccentricity around the jig insertion hole 22b.
  • the Y-axis adjusting plate 24 When the shaft 1002 of the adjusting jig 1000 is eccentrically rotated, the Y-axis adjusting plate 24 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the long groove 24g being pushed by the outer peripheral surface of the shaft 1002. It is moved in the Y-axis direction. At this time, the X-axis adjusting plate 26 assembled to the Y-axis adjusting plate 24, the X-axis sliding member 25 held between the X-axis adjusting plate 26 and the Y-axis adjusting plate 24, and the X-axis adjusting plate 26 are attached. The LD 1 and LD relay substrate 11 thus moved move in the Y-axis direction together with the Y-axis adjusting plate 24.
  • a jig insertion hole 24 h is formed in the receiving surface 24 c of the Y-axis adjusting plate 24.
  • the outer shape of each part of the X-axis sliding member 25 and the X-axis adjusting plate 26 is formed so as to escape from the jig insertion hole 24h. Therefore, the jig insertion hole 24h is exposed to the outside in the provisional assembly state (and the assembly completion state).
  • the amount of relief with respect to the jig insertion hole 24h is the smallest among the U grooves 26u formed in the Y-axis adjusting plate 24 among the components.
  • the U groove 26u has inner wall surfaces that are parallel to the Y direction and face each other. The distance (groove width) between the inner wall surfaces is the distance d 1 as with the groove width of the long groove 24g.
  • An adjustment pin 1004 of the adjustment jig 1000 is inserted into the jig insertion hole 24h of the Y-axis adjustment plate 24 in order to adjust the position of the LD 1 in the X-axis direction.
  • the groove width d 1 is adjustment jig It is designed with a plus tolerance from the diameter d 11 of the shaft 1002 of 1000.
  • the jig insertion hole 24 h of the Y-axis adjustment plate 24 has the same diameter as the adjustment pin 1004 of the adjustment jig 1000.
  • the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 24h.
  • the shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 24h rotates eccentrically corresponding to the amount of eccentricity around the jig insertion hole 24h.
  • the X-axis adjusting plate 26 When the shaft 1002 of the adjustment jig 1000 is eccentrically rotated, the X-axis adjusting plate 26 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 26u being pushed by the outer peripheral surface of the shaft 1002. It is moved in the minute X-axis direction. As a result, the LD 1 and the LD relay substrate 11 attached to the X-axis adjustment plate 26 move in the X-axis direction integrally with the X-axis adjustment plate 26.
  • the position of the LD 1 is finely adjusted in the X-axis direction or the Y-axis direction as in the first embodiment.
  • the receiving surface 22s of the main body member 22 and the receiving surface 24c of the Y-axis adjusting plate 24, or the receiving surface 24d of the Y-axis adjusting plate 24 and the receiving surface of the X-axis adjusting plate 26 are used.
  • 26b a surface of the X-axis adjusting plate 26 that is not visible in FIG. 5 or FIG. 6 and faces the X-axis sliding member 25
  • the Y-axis sliding member 23 is interposed between the Y-axis adjusting plate 24 and the X-axis adjusting plate 26, respectively.
  • the Y-axis adjusting plate 24 can be moved in the Y-axis direction without requiring improvement in surface roughness and polishing finish by machining of each receiving surface, or
  • the X-axis adjusting plate 26 moves smoothly in the X-axis direction.
  • FIG. 7 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 300 according to the third embodiment of the present invention.
  • the optical element adjustment holding mechanism 300 according to the third embodiment is an adjustment holding mechanism mounted on, for example, an optical pickup device, and holds the light receiving sensor 31 and its peripheral components that are adjusted as necessary.
  • the light receiving sensor 31 receives return light of laser light irradiated on the recording surface in order to read information recorded on the recording surface of an optical disc (not shown).
  • the optical element adjustment holding mechanism 300 has a metal main body member 32 for holding the light receiving sensor 31.
  • the sliding member 33 and the light receiving sensor reinforcing plate 34 are arranged on the receiving surface 32 s of the main body member 32 in this order from the receiving surface 32 s side.
  • the two screws 7 are passed through the through holes of the sliding member 33 and the light receiving sensor reinforcing plate 34 via the light receiving sensor adjustment washer 88, and screwed into the screw holes 32 a of the main body member 32.
  • the light receiving sensor 31 to be subjected to position adjustment is mounted on a light receiving sensor relay substrate 35 that is, for example, an FPC.
  • the light receiving sensor 31 is attached to a through hole on the reference axis AX of the light receiving sensor reinforcing plate 34 and is fixed to the light receiving sensor reinforcing plate 34 together with the light receiving sensor relay substrate 35. At this time, the light receiving surface of the light receiving sensor 31 receives the return light from the optical disk, and receives the receiving surface 34d of the light receiving sensor reinforcing plate 34 (the surface of the light receiving sensor reinforcing plate 34 that is not visible in FIG. 7 and faces the sliding member 33). ) Side exposed.
  • a jig having the same configuration as the holding head disclosed in Document 1 is used.
  • the taper pin of the holding head is inserted into the guide hole 34 i formed in the optical sensor reinforcing plate 34.
  • the optical sensor reinforcing plate 34 is moved in the X-axis direction or the Y-axis direction.
  • the light receiving sensor 31 and the light receiving sensor relay board 35 attached to the optical sensor reinforcing plate 34 are also moved in the X-axis direction or the Y-axis direction integrally with the optical sensor reinforcing plate 34.
  • the optical sensor reinforcing plate 34 in order to effectively avoid the direct friction between the receiving surface 32s of the main body member 32 and the receiving surface 34d of the optical sensor reinforcing plate 34, the main body member 32 and the optical sensor reinforcement.
  • a sliding member 33 is interposed between the plate 34.
  • FIG. 8 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 400 according to the fourth embodiment of the present invention.
  • the optical element adjustment holding mechanism 400 according to the fourth embodiment holds a lens unit mounted on an optical device such as a laser printer or an optical pickup device, which is adjusted as necessary.
  • the optical element adjustment holding mechanism 400 includes a metal lens unit mount member 42 that holds a lens unit 41 (a unit in which an optical system including a plurality of lenses is held by a lens frame). Have.
  • a sliding member 43 is overlaid on the receiving surface 42 s of the lens unit mount member 42.
  • the sliding member 43 has a shape corresponding to the receiving surface 42s (a shape approximating a V groove).
  • the sliding member 43 is formed with a positioning convex portion 43 a for fixing the position of the sliding member 43 with respect to the lens unit mount member 42. By fitting the positioning convex portion 43a into the positioning concave portion 42b formed on the receiving surface 42s, the position of the sliding member 43 with respect to the lens unit mount member 42 is easily determined.
  • a lens unit 41 is disposed on the sliding member 43, and a lens unit fixing plate 44 is disposed to hold the lens unit 41 with the sliding member 43.
  • the four screws 7 are passed through the through holes of the sliding member 43 and the lens unit fixing plate 44 and are screwed into the screw holes 42 a of the lens unit mount member 42.
  • the lens unit 41 to be subjected to position adjustment is held between the sliding member 43 and the lens unit fixing plate 44 in either the provisional assembly state or the assembly completion state.
  • the lens unit 41 is in line contact with each of the two inclined surfaces of the sliding member 43 with a line extending in the Z-axis direction, and the inner wall surface of the cylindrical portion of the lens unit fixing plate 44.
  • a groove 41a having a predetermined width is formed over the entire circumference.
  • a part of the groove 41 a is exposed from the adjustment jig access hole 44 a formed in the lens unit fixing plate 44.
  • the diameter of the adjustment pin 1004 is designed to be more negative than the width of the groove 41a of the lens unit 41, and the diameter d 11 of the shaft 1002 is used.
  • the lens unit fixing plate 44 is designed to have a minus tolerance from the diameter of the adjusting jig access hole 44a. As a result, the lens unit 41 slides in the Z-axis direction by a distance corresponding to the amount of rotation of the jig relative to other components. By adjusting the lens unit 41 in the Z-axis direction, the focus position of the optical system of the lens unit 41 is adjusted.
  • the lens unit 41 in order to effectively avoid direct friction between the receiving surface 42s of the lens unit mount member 42 and the outer peripheral surface of the lens unit 41, the lens unit.
  • a sliding member 43 is interposed between the mount member 42 and the outer peripheral surface of the lens unit 41.
  • the lens unit 41 can be moved in the Z-axis direction without requiring improvement in surface roughness or polishing finish by machining each surface. It is smooth.
  • the effect of improving the slidability by the sliding member is more pronounced as the surface shape (in this case, the shape approximated to the V-groove) that makes it difficult to finish the receiving surface that receives the component to be adjusted is smooth. Is done.
  • the optical element adjustment holding mechanism according to the present invention is not limited to the above-described configuration, and various modifications are possible within the scope of the technical idea of the present invention.
  • the sliding member is not limited to a metal part, and may be a resin sheet subjected to an antistatic treatment or the like.
  • the width of the guide slot 2c in the X-axis direction is equal to the diameter of the jig pin 4a and the reference pin 4b. It is comprised substantially the same.
  • the X axis of the escape hole 3a is used as an alternative to the guide long hole 2c or to guide the jig pin 4a and the reference pin 4b together with the guide long hole 2c.
  • the width in the direction may be configured to be substantially the same as the diameter of the jig pin 4a and the reference pin 4b.
  • the sliding member is a single press processed product with a low processing cost.
  • the sliding member is progressively fed in accordance with the shape of the parts around the sliding member. It may be a pressed product.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

An optical element adjusting/holding mechanism holds a component to be adjusted, to which an optical element is fitted. The mechanism has a base to which the component to be adjusted is fixed by screwing. In a previous stage for fixing the component to be adjusted to the base by closing a screw, the component to be adjusted can freely move the base. Thus, a sliding member whose frictional resistance of a surface is lower than that of the base or the component to be adjusted is arranged between the base and the component to be adjusted in the optical element adjusting/holding mechanism.

Description

光学素子調整保持機構Optical element adjustment holding mechanism
　この発明は、光学素子が取り付けられた被調整部品を調整及び保持する光学素子調整保持機構に関連し、詳しくは、光学素子の位置の微調整を簡易にすべく、被調整部品の円滑な移動調整を実現する光学素子調整保持機構に関する。 The present invention relates to an optical element adjustment holding mechanism that adjusts and holds an adjusted component to which an optical element is attached, and more specifically, smooth movement of an adjusted component to facilitate fine adjustment of the position of the optical element. The present invention relates to an optical element adjustment holding mechanism that realizes adjustment.
　レーザープリンタや光ピックアップ装置、或いは、半導体レーザーを光源とするプロジェクター等の光学機器には、種々の光学素子が実装されている。かかる光学素子には、例えばレーザー光源や受光センサ等がある。光学素子は、光学機器が所定の仕様を満足するように、製造段階で治具等を用いて位置の微調整がされる。例えば実開平１－８５９１４号公報に、光ピックアップ装置に実装される受光センサの位置調整機構が開示されている。以下、説明の便宜上、実開平１－８５９１４号公報を「文献１」と記す。 Various optical elements are mounted on an optical device such as a laser printer, an optical pickup device, or a projector using a semiconductor laser as a light source. Examples of such an optical element include a laser light source and a light receiving sensor. The position of the optical element is finely adjusted using a jig or the like at the manufacturing stage so that the optical device satisfies a predetermined specification. For example, Japanese Utility Model Laid-Open No. 1-85914 discloses a position adjustment mechanism of a light receiving sensor mounted on an optical pickup device. Hereinafter, for the convenience of explanation, Japanese Utility Model Laid-Open No. 1-85914 is referred to as “Document 1”.
　文献１に記載の位置調整機構によれば、受光センサを実装した基板が該基板を保持する保持ヘッドによって光ピックアップ本体側面に押し当てられる。この状態で、保持ヘッドを基板実装面と平行な面上で二次元方向に移動させることにより、光ピックアップ本体に対する基板の位置、つまり受光センサの位置の調整が行われる。 According to the position adjustment mechanism described in Document 1, the substrate on which the light receiving sensor is mounted is pressed against the side surface of the optical pickup main body by the holding head that holds the substrate. In this state, the position of the substrate relative to the optical pickup body, that is, the position of the light receiving sensor is adjusted by moving the holding head in a two-dimensional direction on a plane parallel to the substrate mounting surface.
　ところで、光学素子およびその周辺部品を保持する保持部品の材料には、例えば樹脂に比べて寸法安定性に優れた金属が使用されることがある。金属製の保持部品は、例えばフライス盤を用いた切削加工によって製作される。このようにフライス盤を用いて保持部品を製作したとき、該部品の切削加工面に、バイトの送りピッチに応じた周期的な切削痕が残存する。 By the way, for example, a metal having superior dimensional stability as compared with a resin may be used as a material for a holding part that holds an optical element and its peripheral parts. The metal holding component is manufactured by cutting using a milling machine, for example. When a holding part is manufactured using a milling machine in this way, periodic cutting marks corresponding to the feed pitch of the cutting tool remain on the cutting surface of the part.
　ここで、文献１の光ピックアップ本体が金属製部品である場合を例に考える。この場合に保持ヘッドを用いて基板を光ピックアップ本体側面に押し当てたとき、該側面の切削痕が該基板に食い込んで、該基板を該側面に対して円滑に摺動させられないことが想定される。製品の高容量化、高性能化に伴い、より精細な微調整が要求されているにもかかわらず、基板を光ピックアップ本体側面に対して円滑に摺動させられない場合、光ピックアップ本体に対する基板（受光センサ）の位置を微調整することが難しいといった不便が生じる。かかる基板の円滑な摺動は、切削痕が大きく残存するほどより一層困難となる。また、放熱性や製品重量軽減などの目的で、光ピックアップ本体及び調整対象となる被調整部品の双方の材料をアルミニウム等に選定する場合がある。アルミニウム同士を密着させた状態での円滑な摺動は困難であり、この様な面からも簡便な改善策が望まれている。 Here, consider the case where the optical pickup body of Document 1 is a metal part. In this case, it is assumed that when the substrate is pressed against the side surface of the optical pickup body using the holding head, the cutting traces on the side surface bite into the substrate and the substrate cannot be smoothly slid relative to the side surface. Is done. If the substrate cannot be slid smoothly with respect to the side of the optical pickup body even though finer fine adjustments are required due to higher capacity and higher performance of the product, the board for the optical pickup body There is an inconvenience that it is difficult to finely adjust the position of the (light receiving sensor). Such smooth sliding of the substrate becomes more difficult as the cutting traces remain. In addition, for the purpose of reducing heat dissipation or reducing the product weight, the material of both the optical pickup main body and the component to be adjusted may be selected as aluminum or the like. Smooth sliding in a state where aluminum is brought into close contact with each other is difficult, and a simple improvement measure is desired from such a viewpoint.
　そこで、基板をはじめとする被調整部品を光ピックアップ本体側面に対して円滑に摺動させるため、該側面の加工精度の向上による切削痕の低減や該側面の研磨仕上げ等を行うことにより、該被調整部品に対する該側面の摩擦抵抗を低減させることが考えられる。しかし、光ピックアップ本体側面の加工精度の向上や研磨仕上げを行った場合、光ピックアップ本体の加工費が高くなり、費用対効果の面で好ましくない。 Therefore, in order to smoothly slide the component to be adjusted including the substrate with respect to the side surface of the optical pickup main body, by reducing the cutting traces by improving the processing accuracy of the side surface, polishing the side surface, etc. It is conceivable to reduce the frictional resistance of the side surface against the component to be adjusted. However, when the processing accuracy of the side surface of the optical pickup main body is improved or polished, the processing cost of the optical pickup main body becomes high, which is not preferable in terms of cost effectiveness.
　本発明は上記の事情に鑑みてなされたものであり、その目的とするところは、加工費の増加を効果的に抑える簡易な構成であり、また、滑らかな面状態に加工仕上げを施すのが難しい部位（例：レンズ枠をマウントするV溝に近似した形状）における改善効果、更には円滑な摺動調整に適さない材料を用いた場合などの構成に対する改善効果をも期待できる、光学素子の位置微調整に好適な光学素子位置調整機構を提供することである。 The present invention has been made in view of the above circumstances, and its object is a simple configuration that effectively suppresses an increase in processing costs, and it is also possible to perform processing finishing on a smooth surface state. An optical element that can be expected to have an improvement effect on difficult parts (eg, a shape approximating a V-groove for mounting a lens frame), as well as an improvement effect on the configuration when using materials that are not suitable for smooth sliding adjustment. An optical element position adjustment mechanism suitable for fine position adjustment is provided.
　上記の課題を解決する本発明の一形態に係る光学素子調整保持機構は、光学素子が取り付けられた被調整部品を、調整及び保持する、調整保持機構である。該光学素子調整保持機構は、ネジ止めにより被調整部品が固定される基台を有している。該光学素子調整保持機構には、ネジを本締めして被調整部品を基台に固定する前段階において該基台に対して該被調整部品を移動自在とするため、該基台と該被調整部品との間に、表面の摩擦抵抗が該基台又は該被調整部品より低い摺動部材を介在されている。このように摺動部材を介在させることにより、基台と被調整部品との直接の摩擦が有効に避けられると同時に、基台、被調整部品が摩擦抵抗の低い摺動部材と摺動して円滑に移動するようになる。 The optical element adjustment holding mechanism according to an embodiment of the present invention that solves the above-described problem is an adjustment holding mechanism that adjusts and holds a component to be adjusted to which the optical element is attached. The optical element adjustment holding mechanism has a base on which the component to be adjusted is fixed by screwing. The optical element adjusting and holding mechanism includes the base and the object to be adjusted so that the object to be adjusted can be moved relative to the base before the part to be adjusted is fixed to the base by tightening a screw. A sliding member having a lower surface friction resistance than the base or the component to be adjusted is interposed between the adjustment component and the adjustment component. By interposing the sliding member in this way, direct friction between the base and the component to be adjusted is effectively avoided, and at the same time, the base and the component to be adjusted slide with the sliding member having a low frictional resistance. Moves smoothly.
　摺動部材は、例えばネジが挿入されて通される貫通穴を有している。かかる貫通穴は、基台に対する摺動部材の移動が規制されるよう、ネジの径と略同一径を有することが望ましい。 The sliding member has a through hole through which, for example, a screw is inserted. It is desirable that the through hole has substantially the same diameter as the screw so that the movement of the sliding member relative to the base is restricted.
　また、摺動部材は、好ましくは、低摩擦抵抗や加工容易性を勘案して、板金材料をプレス（打ち抜き）したプレス加工品を用いるが、状況により曲げ加工も施して、実装箇所の形状に適合させる場合もある。 In addition, the sliding member is preferably a pressed product obtained by pressing (punching) a sheet metal material in consideration of low frictional resistance and ease of processing. May be adapted.
　光学素子調整保持機構は、基台と被調整部品との間に配置された移動規制板であって、ネジを本締めして被調整部品を基台に固定する前段階において、第一の方向にだけ移動自在に該基台に支持されつつ、該被調整部品を該第一の方向に直交する第二の方向にだけ移動自在に支持した移動規制板をさらに有する構成であってもよい。この場合に、摺動部材は、基台と移動規制板、該移動規制板と被調整部品のそれぞれを円滑に移動させるべく、例えば基台と移動規制板との間、および該移動規制板と被調整部品との間にそれぞれ介在されている。 The optical element adjustment holding mechanism is a movement restricting plate arranged between the base and the component to be adjusted, and in the first stage, the screw is finally tightened to fix the component to be adjusted to the base. Further, it may be configured to further include a movement restricting plate that is supported by the base so as to be movable only while supporting the component to be adjusted only in a second direction orthogonal to the first direction. In this case, in order to smoothly move the base and the movement restricting plate, the movement restricting plate and the component to be adjusted, for example, between the base and the movement restricting plate and the movement restricting plate. They are respectively interposed between the parts to be adjusted.
本発明の第一実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding | maintenance mechanism of 1st embodiment of this invention. 図１と別の角度により本発明の第一実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding mechanism of 1st embodiment of this invention by an angle different from FIG. 本発明の第一実施形態の光学素子調整保持機構が有するＬＤの位置調整を説明するための図である。It is a figure for demonstrating position adjustment of LD which the optical element adjustment holding mechanism of 1st embodiment of this invention has. 本発明の第一実施形態の光学素子調整保持機構が有するＬＤの位置調整を説明するための図である。It is a figure for demonstrating position adjustment of LD which the optical element adjustment holding mechanism of 1st embodiment of this invention has. 本発明の第二実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding | maintenance mechanism of 2nd embodiment of this invention. 図５と別の角度により本発明の第二実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding | maintenance mechanism of 2nd embodiment of this invention by an angle different from FIG. 本発明の第三実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding | maintenance mechanism of 3rd embodiment of this invention. 本発明の第四実施形態の光学素子調整保持機構の構成を分解して示す分解斜視図である。It is a disassembled perspective view which decomposes | disassembles and shows the structure of the optical element adjustment holding | maintenance mechanism of 4th embodiment of this invention.
　以下、図面を参照して、本発明に係る光学素子調整位置調整機構の具体的実施形態を四例説明する。 Hereinafter, four specific embodiments of the optical element adjustment position adjustment mechanism according to the present invention will be described with reference to the drawings.
　図１は、本発明の第一実施形態の光学素子調整保持機構１００の構成を分解して示す分解斜視図である。図２は、図１と別の角度で第一実施形態の光学素子調整保持機構１００の構成を分解して示す分解斜視図である。図２においては図面を簡略化するため、一部の構成部品（後述のＬＤ駆動基板１２、スペーサ１３、ネジ１４）の図示を省略する。 FIG. 1 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 100 according to the first embodiment of the present invention. FIG. 2 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 100 of the first embodiment at a different angle from FIG. In FIG. 2, illustration of some components (the LD drive substrate 12, the spacer 13, and the screw 14 described later) is omitted to simplify the drawing.
　第一実施形態の光学素子調整保持機構１００は、例えばレーザープリンタに搭載される調整保持機構であり、必要に応じて調整が施されるレーザーダイオード（以下、「ＬＤ」と記す。）１およびその周辺部品を保持する。図１又は図２中、光学素子調整保持機構１００の基準軸ＡＸと平行な方向をＺ軸方向と定義し、該Ｚ軸方向と直交し且つ互いに直交する２軸をそれぞれＸ軸方向、Ｙ軸方向と定義する。 The optical element adjustment holding mechanism 100 according to the first embodiment is an adjustment holding mechanism mounted on, for example, a laser printer, and a laser diode (hereinafter referred to as “LD”) 1 that is adjusted as necessary, and the same. Holds peripheral parts. In FIG. 1 or FIG. 2, the direction parallel to the reference axis AX of the optical element adjustment holding mechanism 100 is defined as the Z-axis direction, and the two axes orthogonal to the Z-axis direction and orthogonal to each other are the X-axis direction and the Y-axis, respectively. Defined as direction.
　図１又は図２に示されるように、光学素子調整保持機構１００は、図示省略されたレンズユニットを保持する本体部材２を有している。本体部材２の受け面２ｓには、受け面２ｓ側から順に、Ｙ軸摺動部材３、Ｙ軸調整板４、Ｘ軸摺動部材５、Ｘ軸調整板６が重なるように配置されている。かかる配置状態で、４本のネジ７がＬＤ調整座金８を介してＹ軸摺動部材３、Ｙ軸調整板４、Ｘ軸摺動部材５、Ｘ軸調整板６の各部品の貫通穴又は逃げ形状を通されて、本体部材２のネジ穴２ａにネジ止めされている。ネジ７による各部品（つまりＹ軸摺動部材３、Ｙ軸調整板４、Ｘ軸摺動部材５、Ｘ軸調整板６）の本体部材２に対する固定には、締め付け効果を高めるため、スプリング座金９、平座金１０が使用されている。 As shown in FIG. 1 or FIG. 2, the optical element adjustment holding mechanism 100 has a main body member 2 for holding a lens unit (not shown). A Y-axis sliding member 3, a Y-axis adjusting plate 4, an X-axis sliding member 5, and an X-axis adjusting plate 6 are arranged on the receiving surface 2s of the main body member 2 in order from the receiving surface 2s side. . In such an arrangement state, four screws 7 pass through holes of respective parts of the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6 through the LD adjustment washer 8. The relief shape is passed through and screwed into the screw hole 2 a of the main body member 2. In order to enhance the fastening effect, the spring washer is used to fix each component (that is, the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6) to the main body member 2 with the screws 7. 9. A plain washer 10 is used.
　第一実施形態において位置調整の対象となるＬＤ１の背面には、例えばＰＣＢ（Printed Circuit Board）であるＬＤ中継基板１１が実装されている。ＬＤ１は、Ｘ軸調整板６の基準軸ＡＸ上の貫通穴に圧入されて、ＬＤ中継基板１１ごとＸ軸調整板６に固定されている。ＬＤ１は、ＬＤ中継基板１１上の回路パターンおよび図示省略されたジャンパ線を介して、ＬＤ駆動基板１２に実装されたＬＤ駆動用の回路に接続されている。ＬＤ駆動基板１２は、スペーサ１３を介してネジ１４により本体部材２に取り付けられている。 In the first embodiment, an LD relay substrate 11, which is a PCB (Printed Circuit Board), for example, is mounted on the back surface of the LD 1 that is a position adjustment target. The LD 1 is press-fitted into a through hole on the reference axis AX of the X-axis adjustment plate 6, and is fixed to the X-axis adjustment plate 6 together with the LD relay substrate 11. The LD 1 is connected to an LD driving circuit mounted on the LD driving substrate 12 via a circuit pattern on the LD relay substrate 11 and a jumper line (not shown). The LD drive substrate 12 is attached to the main body member 2 with screws 14 through spacers 13.
　図３、図４の各図は、第一実施形態の光学素子調整保持機構１００のＬＤ１の位置調整を説明するための図である。図３、図４の各図には、第一実施形態の光学素子調整保持機構１００を組み立てた状態を斜視図で示す。但し、図３、図４の各図は、ＬＤ１の位置調整を行う前段階であり、ネジ７が仮締めされた状態に留まる。以下、説明の便宜上、ＬＤ１の位置調整を行う前段階を「組立仮状態」と記し、ＬＤ１の位置調整を行ってネジ７を本締めした状態を「組立完成状態」と記す。なお、図３、図４の各図においては図２と同じく図面を簡略化するため、ＬＤ駆動基板１２、スペーサ１３、ネジ１４の図示を省略する。 3 and 4 are diagrams for explaining the position adjustment of the LD 1 of the optical element adjustment holding mechanism 100 of the first embodiment. 3 and 4 are perspective views showing a state in which the optical element adjustment holding mechanism 100 according to the first embodiment is assembled. However, each figure of FIG. 3 and FIG. 4 is a stage before adjusting the position of LD1, and the screw 7 remains in the temporarily tightened state. Hereinafter, for convenience of explanation, the stage before the position adjustment of the LD 1 is referred to as an “assembling provisional state”, and the state where the position adjustment of the LD 1 is performed and the screw 7 is finally tightened is referred to as an “assembly completion state”. 3 and FIG. 4, the illustration of the LD drive substrate 12, the spacer 13, and the screw 14 is omitted to simplify the drawing as in FIG.
　図３又は図４に示されるように、Ｙ軸摺動部材３、Ｙ軸調整板４、Ｘ軸摺動部材５、Ｘ軸調整板６の各部品の外形状は、本体部材２の受け面２ｓに形成された治具用挿入穴２ｂを逃げるように形成されている。そのため、治具用挿入穴２ｂは、組立仮状態（および組立完成状態）において外部に露出している。治具用挿入穴２ｂに対する逃げ量は、各部品のうち、Ｙ軸調整板４に形成されたＵ溝４ｕが最も少ない。Ｕ溝４ｕは、Ｘ方向に平行で互いに向き合う内壁面を持つ。かかる内壁面間の距離（溝幅）は、図１に示されるように、距離ｄ１である。 As shown in FIG. 3 or 4, the outer shape of each component of the Y-axis sliding member 3, the Y-axis adjusting plate 4, the X-axis sliding member 5, and the X-axis adjusting plate 6 is the receiving surface of the main body member 2. It is formed so as to escape the jig insertion hole 2b formed in 2s. Therefore, the jig insertion hole 2b is exposed to the outside in the provisional assembly state (and the assembly completion state). The amount of relief with respect to the jig insertion hole 2b is the smallest in the U groove 4u formed in the Y-axis adjusting plate 4 among the components. The U groove 4u has inner wall surfaces that are parallel to the X direction and face each other. The distance (groove width) between the inner wall surfaces is a distance d 1 as shown in FIG.
　Ｙ軸調整板４に形成された上下一対の貫通穴にはそれぞれ、治具用ピン４ａ、基準ピン４ｂが圧入されている。図１又は図２の何れにおいても図示されていないが、治具用ピン４ａ、基準ピン４ｂは、Ｙ軸調整板４の図中可視される面（受け面４ｃ）側だけでなくその裏面（受け面４ｄ）側にも突出している。Ｙ軸調整板４の受け面４ｄ側に突出した治具用ピン４ａ、基準ピン４ｂはそれぞれ、Ｙ軸摺動部材３の貫通長穴３ａを介して、本体部材２の受け面２ｓに形成された一対のガイド長穴２ｃに挿入されている。ガイド長穴２ｃの長辺は、Ｙ軸方向に平行である。かかる長辺間のＸ軸方向の幅は、治具用ピン４ａ、基準ピン４ｂの直径と略同一である。そのため、Ｙ軸調整板４は、組立仮状態時には、治具用ピン４ａ、基準ピン４ｂを介してガイド長穴２ｃにより、Ｘ軸方向の移動が規制（禁止）されつつもＹ軸方向の移動が一定量許容されている。なお、貫通長穴３ａは、治具用ピン４ａ、基準ピン４ｂのＹ軸方向の移動を妨げないよう、ガイド長穴２ｃを逃げるように形成されている。 A jig pin 4a and a reference pin 4b are press-fitted into a pair of upper and lower through holes formed in the Y-axis adjusting plate 4, respectively. Although not shown in either FIG. 1 or FIG. 2, the jig pin 4a and the reference pin 4b are not only the surface (receiving surface 4c) side of the Y-axis adjusting plate 4 visible in the figure but also the back surface ( It also protrudes to the receiving surface 4d) side. The jig pin 4a and the reference pin 4b protruding to the receiving surface 4d side of the Y-axis adjusting plate 4 are formed on the receiving surface 2s of the main body member 2 through the through-holes 3a of the Y-axis sliding member 3, respectively. The pair of guide long holes 2c are inserted. The long side of the guide elongated hole 2c is parallel to the Y-axis direction. The width in the X-axis direction between the long sides is substantially the same as the diameters of the jig pin 4a and the reference pin 4b. Therefore, the Y-axis adjustment plate 4 is moved in the Y-axis direction while being restricted (prohibited) in the X-axis direction by the guide slot 2c via the jig pin 4a and the reference pin 4b in the temporarily assembled state. A certain amount is allowed. The through hole 3a is formed so as to escape the guide long hole 2c so as not to prevent the movement of the jig pin 4a and the reference pin 4b in the Y-axis direction.
　図３に示される調整用治具１０００は例えば金属の削り出し治具であり、軸１００２を有している。軸１００２の先端には、軸１００２の中心軸から偏芯した位置に調整ピン１００４が形成されている。調整ピン１００４は、ＬＤ１のＹ軸方向の位置調整を行うため、本体部材２の治具用挿入穴２ｂに挿入される。 The adjustment jig 1000 shown in FIG. 3 is, for example, a metal shaving jig, and has a shaft 1002. An adjustment pin 1004 is formed at the tip end of the shaft 1002 at a position eccentric from the central axis of the shaft 1002. The adjustment pin 1004 is inserted into the jig insertion hole 2b of the main body member 2 in order to adjust the position of the LD 1 in the Y-axis direction.
　調整用治具１０００の軸１００２の直径はｄ11である。Ｙ軸調整板４のＵ溝４ｕの溝幅ｄ１は、軸１００２の直径ｄ11と、ほぼ同一寸法であるが、プラス公差に設計されている。従って、調整用治具１０００の調整ピン１００４を、本体部材２の治具用挿入穴２ｂに挿入した状態で、調整用治具１０００を治具用挿入穴２ｂの中心周りに回転した時、軸１００２の外周面がＵ溝４ｕの内壁面の何れかの部位と１線で接触する。 The diameter of the shaft 1002 of the adjustment jig 1000 is d11. Groove width d 1 of the U-groove 4u of the Y-axis adjustment plate 4, the diameter d11 of the shaft 1002 is substantially the same size, it is designed plus tolerances. Accordingly, when the adjustment jig 1000 is rotated around the center of the jig insertion hole 2b with the adjustment pin 1004 of the adjustment jig 1000 inserted into the jig insertion hole 2b of the main body member 2, the shaft The outer peripheral surface of 1002 is in contact with any part of the inner wall surface of the U groove 4u by one line.
　調整用治具１０００の調整ピン１００４は、本体部材２の治具用挿入穴２ｂと同一の直径を有している。但し、調整ピン１００４の直径はマイナス公差で設計されている。したがって、調整用治具１０００を使用する作業者は、調整ピン１００４を治具用挿入穴２ｂに挿入させた後、当該治具をＺ軸周りに円滑に回すことができる。調整ピン１００４が治具用挿入穴２ｂに挿入された軸１００２は、治具用挿入穴２ｂを中心に、偏芯量、すなわち軸１００２の中心軸と調整ピン１００４の中心軸との距離に対応した偏芯回転をする。 The adjustment pin 1004 of the adjustment jig 1000 has the same diameter as the jig insertion hole 2b of the main body member 2. However, the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 2b. The shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 2b corresponds to the amount of eccentricity around the jig insertion hole 2b, that is, the distance between the central axis of the shaft 1002 and the central axis of the adjustment pin 1004. Rotate eccentrically.
　調整用治具１０００の軸１００２を偏芯回転させたとき、Ｙ軸調整板４は、Ｕ溝４ｕの内壁面が軸１００２の外周面によって押されることにより、偏芯回転に応じた偏芯量分Ｙ軸方向に移動される。ここで、Ｘ軸調整板６は、基準ピン４ｂを受ける軸穴６ａを有している。すなわち、Ｘ軸調整板６は、基準ピン４ｂによって軸支されている。そのため、調整用治具１０００を使用してＹ軸調整板４がＹ軸方向に移動されたとき、Ｙ軸調整板４に軸支されたＸ軸調整板６、Ｘ軸調整板６とＹ軸調整板４との間に保持されたＸ軸摺動部材５、Ｘ軸調整板６に取り付けられたＬＤ１およびＬＤ中継基板１１は、Ｙ軸調整板４と一体になってＹ軸方向に移動する。なお、ネジ７が挿入されて通されるＹ軸摺動部材３の貫通穴３ｂは、ネジ７のネジ径と略同一径に形成されている。貫通穴３ｂは、例えばＹ軸摺動部材３がＹ軸調整板４の移動に伴って移動しようとしたときにネジ７に接触して、Ｙ軸摺動部材３の移動を規制するストッパとして機能する。 When the shaft 1002 of the adjusting jig 1000 is eccentrically rotated, the Y-axis adjusting plate 4 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 4u being pushed by the outer peripheral surface of the shaft 1002. It is moved in the minute Y-axis direction. Here, the X-axis adjusting plate 6 has a shaft hole 6a for receiving the reference pin 4b. That is, the X-axis adjusting plate 6 is pivotally supported by the reference pin 4b. Therefore, when the Y-axis adjustment plate 4 is moved in the Y-axis direction using the adjustment jig 1000, the X-axis adjustment plate 6, the X-axis adjustment plate 6 and the Y-axis supported by the Y-axis adjustment plate 4 are supported. The X-axis sliding member 5 held between the adjustment plate 4 and the LD 1 and LD relay substrate 11 attached to the X-axis adjustment plate 6 move integrally with the Y-axis adjustment plate 4 in the Y-axis direction. . The through hole 3b of the Y-axis sliding member 3 through which the screw 7 is inserted is formed to have substantially the same diameter as the screw diameter of the screw 7. The through-hole 3b functions as a stopper that controls the movement of the Y-axis sliding member 3 by contacting the screw 7 when the Y-axis sliding member 3 is about to move as the Y-axis adjusting plate 4 moves, for example. To do.
　組立仮状態においてＸ軸調整板６は、軸穴６ａを通じて、Ｙ軸調整板４に対して基準ピン４ｂを中心に回転自在に支持された状態にある。Ｘ軸調整板６を回転させたときの運動軌跡の曲率は大きいため、当該回転によるＸ軸調整板６の移動は、実質的にＸ軸方向の移動とみなすことができる。Ｘ軸調整板６を回転させるためには、図４に示される調整用治具２０００が使用される。なお、治具用ピン４ａ、基準ピン４ｂが挿入されて通されるＸ軸摺動部材５の貫通穴５ａ、５ｂはそれぞれ、治具用ピン４ａ、基準ピン４ｂと略同一径を有している。貫通穴５ａ、５ｂは、例えばＸ軸摺動部材５がＸ軸調整板６の移動に伴って移動しようとしたときに治具用ピン４ａ、基準ピン４ｂに接触して、Ｘ軸摺動部材５の移動を規制するストッパとして機能する。 In the pre-assembled state, the X-axis adjusting plate 6 is in a state of being rotatably supported around the reference pin 4b with respect to the Y-axis adjusting plate 4 through the shaft hole 6a. Since the curvature of the motion trajectory when the X-axis adjustment plate 6 is rotated is large, the movement of the X-axis adjustment plate 6 due to the rotation can be substantially regarded as the movement in the X-axis direction. In order to rotate the X-axis adjusting plate 6, an adjusting jig 2000 shown in FIG. 4 is used. The through holes 5a and 5b of the X-axis sliding member 5 through which the jig pin 4a and the reference pin 4b are inserted have substantially the same diameter as the jig pin 4a and the reference pin 4b, respectively. Yes. The through-holes 5a and 5b contact the jig pin 4a and the reference pin 4b when the X-axis sliding member 5 is about to move as the X-axis adjusting plate 6 moves, for example. 5 functions as a stopper for restricting the movement of 5.
　図３又は図４に示されるように、Ｘ軸調整板６は、Ｙ軸調整板４の治具用ピン４ａを逃げるように形成されたＵ溝６ｕを有している。そのため、治具用ピン４ａは、組立仮状態（および組立完成状態）において外部に露出している。Ｕ溝６ｕは、Ｙ方向に平行で互いに向き合う内壁面を持つ。かかる内壁面間の距離（溝幅）は、図１に示されるように、距離ｄ２である。 As shown in FIG. 3 or FIG. 4, the X-axis adjustment plate 6 has a U groove 6 u formed so as to escape the jig pin 4 a of the Y-axis adjustment plate 4. For this reason, the jig pin 4a is exposed to the outside in the provisional assembly state (and the assembly completion state). The U groove 6u has inner wall surfaces that are parallel to the Y direction and face each other. The distance (groove width) between the inner wall surfaces is a distance d 2 as shown in FIG.
　このように外部に露出された治具用ピン４ａに、調整用治具２０００の一部の構成が嵌合される。具体的には、調整用治具２０００は、例えば調整用治具１０００と同じく金属の削り出し治具であり、軸２００２を有している。軸２００２の直径はｄ22である。Ｘ軸調整板６のＵ溝６ｕの溝幅ｄ２は、軸２００２の直径ｄ22と、ほぼ同一寸法であるが、プラス公差に設計されている。従って、調整用治具２０００の軸２００２をＵ溝６ｕに挿入した時、軸２００２の外周面がＵ溝６ｕの内壁面の何れかの部位と１線で接触する。また、軸２００２の先端面には、軸２００２の中心軸から偏芯した位置に、治具用ピン４ａに対応する形状を持つ凹部が形成されている。凹部は、治具用ピン４ａと同一の直径を有している。但し、凹部の直径はプラス公差で設計されている。したがって、調整用治具２０００を使用する作業者は、凹部を治具用ピン４ａに嵌合させた後、当該治具をＺ軸周りに円滑に回すことができる。凹部が治具用ピン４ａに嵌合された軸２００２は、治具用ピン４ａを中心に、偏芯量、すなわち軸２００２の中心軸と凹部の中心軸との距離に対応した偏芯回転をする。調整用治具２０００の軸２００２を偏芯回転させたとき、Ｘ軸調整板６は、Ｕ溝６ｕの内壁面が軸２００２の外周面によって押されることにより、偏芯回転に応じた偏芯量分Ｘ軸方向に移動される。これにより、Ｘ軸調整板６に取り付けられたＬＤ１およびＬＤ中継基板１１は、Ｘ軸調整板６と一体にＸ軸方向に移動する。 In this way, a part of the configuration of the adjustment jig 2000 is fitted to the jig pin 4a exposed to the outside. Specifically, the adjustment jig 2000 is, for example, a metal shaving jig similar to the adjustment jig 1000 and has a shaft 2002. The diameter of the shaft 2002 is d22. Groove width d 2 of the U-groove 6u of the X-axis adjustment plate 6 has a diameter d22 of the shaft 2002 is substantially the same size, it is designed plus tolerances. Therefore, when the shaft 2002 of the adjustment jig 2000 is inserted into the U groove 6u, the outer peripheral surface of the shaft 2002 is in contact with any part of the inner wall surface of the U groove 6u in one line. Further, a concave portion having a shape corresponding to the jig pin 4 a is formed on the tip surface of the shaft 2002 at a position eccentric from the central axis of the shaft 2002. The recess has the same diameter as the jig pin 4a. However, the diameter of the recess is designed with a plus tolerance. Therefore, an operator who uses the adjustment jig 2000 can smoothly turn the jig around the Z axis after fitting the recess to the jig pin 4a. The shaft 2002 in which the concave portion is fitted to the jig pin 4a rotates eccentrically around the jig pin 4a in accordance with the eccentric amount, that is, the distance between the central axis of the shaft 2002 and the central axis of the concave portion. To do. When the shaft 2002 of the adjusting jig 2000 is eccentrically rotated, the X-axis adjusting plate 6 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 6u being pushed by the outer peripheral surface of the shaft 2002. It is moved in the minute X-axis direction. As a result, the LD 1 and the LD relay substrate 11 attached to the X-axis adjustment plate 6 move in the X-axis direction integrally with the X-axis adjustment plate 6.
　以上に説明された作業を行うことにより、ＬＤ１の位置がＸ軸方向又はＹ軸方向に微調整される。ＬＤ１の位置を調整した後ネジ７を本締めすることにより、本体部材２に対するＬＤ１の位置が固定されて、該作業が完了する。 By performing the operations described above, the position of the LD 1 is finely adjusted in the X-axis direction or the Y-axis direction. After the position of LD1 is adjusted, the screw 7 is finally tightened to fix the position of LD1 with respect to the main body member 2, and the operation is completed.
　ところで、本体部材２、Ｙ軸調整板４、Ｘ軸調整板６の各部品は、寸法安定性に優れた金属製の部品である。具体的には、各部品の材料にはＬＤ１の発熱を考慮して、例えば放熱性に優れたアルミニウムが想定される。また、これらの部品の材料は、ステンレスや鉄等であってもよい。そのため、本体部材２の受け面２ｓ、Ｙ軸調整板４の受け面４ｃ、４ｄ、Ｘ軸調整板６の受け面６ｂ（Ｘ軸調整板６の図１又は図２中可視されない、Ｘ軸摺動部材５と対向する面）の各面には、切削加工による切削痕が残存している。したがって、受け面２ｓと受け面４ｃとを、又は受け面４ｄと受け面６ｂとを直接面接触させる構成の場合、受け面同士の切削痕の食い込みに起因する摩擦抵抗の増加により、Ｙ軸調整板４のＹ軸方向への移動、又はＸ軸調整板６のＸ軸方向への移動が円滑に行われない。 By the way, each part of the main body member 2, the Y-axis adjusting plate 4, and the X-axis adjusting plate 6 is a metal part having excellent dimensional stability. Specifically, considering the heat generated by the LD 1, for example, aluminum excellent in heat dissipation is assumed as the material of each component. The material of these parts may be stainless steel or iron. Therefore, the receiving surface 2s of the main body member 2, the receiving surfaces 4c and 4d of the Y-axis adjusting plate 4, the receiving surface 6b of the X-axis adjusting plate 6 (the X-axis sliding not visible in FIG. 1 or 2 of the X-axis adjusting plate 6). On each surface of the surface facing the moving member 5, cutting traces by cutting remain. Therefore, in the case where the receiving surface 2s and the receiving surface 4c or the receiving surface 4d and the receiving surface 6b are in direct surface contact with each other, the Y-axis adjustment is caused by an increase in frictional resistance caused by biting of cutting marks between the receiving surfaces. The movement of the plate 4 in the Y-axis direction or the movement of the X-axis adjustment plate 6 in the X-axis direction is not performed smoothly.
　そこで、第一実施形態の光学素子調整保持機構１００においては、受け面同士の直接の摩擦を有効に避けつつもＹ軸調整板４又はＸ軸調整板６の円滑な移動を達成するため、本体部材２とＹ軸調整板４との間にＹ軸摺動部材３を、Ｙ軸調整板４とＸ軸調整板６との間にＸ軸摺動部材５を、それぞれ介在させている。すなわち、Ｙ軸調整板４、Ｘ軸調整板６はそれぞれ、各種治具によるＬＤ１の位置調整が行われたとき、Ｙ軸摺動部材３、Ｘ軸摺動部材５と摺動するように構成される。 Therefore, in the optical element adjustment holding mechanism 100 of the first embodiment, in order to achieve smooth movement of the Y-axis adjustment plate 4 or the X-axis adjustment plate 6 while effectively avoiding direct friction between the receiving surfaces, A Y-axis sliding member 3 is interposed between the member 2 and the Y-axis adjusting plate 4, and an X-axis sliding member 5 is interposed between the Y-axis adjusting plate 4 and the X-axis adjusting plate 6. That is, the Y-axis adjusting plate 4 and the X-axis adjusting plate 6 are configured to slide with the Y-axis sliding member 3 and the X-axis sliding member 5 when the position of the LD 1 is adjusted by various jigs. Is done.
　Ｙ軸摺動部材３、Ｘ軸摺動部材５は、表面の摩擦抵抗の低い材料で（少なくとも本体部材２、Ｙ軸調整板４、Ｘ軸調整板６の各受け面の摩擦抵抗より低い材料で）形成されている。具体的には、各摺動部材は、例えば圧延鋼板や圧延ステンレス鋼板、真鍮板等をプレスしたプレス加工品である。このように受け面間に摺動部材を介在させることにより、各受け面の機械加工による面粗さの向上や研磨仕上げを要することなく、Ｙ軸調整板４のＹ軸方向への移動、又はＸ軸調整板６のＸ軸方向への移動は円滑になる。各受け面がアルミニウム等の円滑な摺動調整に適さない面であるほど、摺動部材による摺動性向上の効果がより一層発揮される。なお、Ｙ軸摺動部材３は、Ｙ軸調整板４の受け面４ｄのほぼ全面と摺動するよう、受け面４ｄとほぼ相似する形状を持つ。また、Ｘ軸摺動部材５は、Ｙ軸調整板４の受け面４ｃおよびＸ軸調整板６の受け面６ｂの各受け面のほぼ全面と摺動するよう、受け面４ｃとほぼ相似形状であるとともに、受け面６ｂのほぼ全域を覆う形状を持つ。 The Y-axis sliding member 3 and the X-axis sliding member 5 are materials having a low surface frictional resistance (a material lower than the frictional resistance of at least the receiving surfaces of the main body member 2, the Y-axis adjusting plate 4, and the X-axis adjusting plate 6). Is formed). Specifically, each sliding member is a pressed product obtained by pressing a rolled steel plate, a rolled stainless steel plate, a brass plate, or the like. By interposing the sliding member between the receiving surfaces in this way, the Y-axis adjusting plate 4 can be moved in the Y-axis direction without the need for surface roughness improvement or polishing finish by machining each receiving surface, or The movement of the X-axis adjusting plate 6 in the X-axis direction becomes smooth. As each receiving surface is a surface that is not suitable for smooth sliding adjustment, such as aluminum, the effect of improving the slidability by the sliding member is further exhibited. The Y-axis sliding member 3 has a shape that is substantially similar to the receiving surface 4d so as to slide on substantially the entire receiving surface 4d of the Y-axis adjusting plate 4. Further, the X-axis sliding member 5 has a substantially similar shape to the receiving surface 4c so as to slide on almost the entire receiving surface of the receiving surface 4c of the Y-axis adjusting plate 4 and the receiving surface 6b of the X-axis adjusting plate 6. In addition, it has a shape that covers almost the entire area of the receiving surface 6b.
　図５は、本発明の第二実施形態の光学素子調整保持機構２００の構成を分解して示す分解斜視図である。図６は、図５と別の角度で第二実施形態の光学素子調整保持機構２００の構成を分解して示す分解斜視図である。なお、以降の各具体的実施形態において、第一実施形態の構成と同一又は同様の構成には同一又は同様の符号を付して説明を省略する。また、以降の各具体的実施形態の図面においては、ＬＤ駆動基板１２、スペーサ１３、ネジ１４の図示を省略する。また、図６においては図面を簡略化するため、ネジ７、ＬＤ調整座金８、スプリング座金９、および平座金１０の図示を省略する。 FIG. 5 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 200 according to the second embodiment of the present invention. FIG. 6 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 200 of the second embodiment at a different angle from FIG. In the following specific embodiments, the same or similar components as those of the first embodiment are denoted by the same or similar reference numerals, and the description thereof is omitted. Also, in the drawings of the specific embodiments that follow, the illustration of the LD drive substrate 12, the spacer 13, and the screw 14 is omitted. Further, in FIG. 6, illustration of the screw 7, the LD adjustment washer 8, the spring washer 9, and the flat washer 10 is omitted to simplify the drawing.
　第二実施形態の光学素子調整保持機構２００は、第一実施形態の光学素子調整保持機構１００の本体部材２、Ｙ軸摺動部材３、Ｙ軸調整板４、Ｘ軸摺動部材５、Ｘ軸調整板６の代替として、本体部材２２、Ｙ軸摺動部材２３、Ｙ軸調整板２４、Ｘ軸摺動部材２５、Ｘ軸調整板２６を有している。すなわち、本体部材２２の受け面２２ｓには、受け面２２ｓ側から順に、Ｙ軸摺動部材２３、Ｙ軸調整板２４、Ｘ軸摺動部材２５、Ｘ軸調整板２６が重なるように配置されている。かかる配置状態で、４本のネジ７がＬＤ調整座金８を介してＹ軸摺動部材２３、Ｙ軸調整板２４、Ｘ軸摺動部材２５、Ｘ軸調整板２６の各部品の貫通穴又は逃げ形状を通されて、本体部材２２のネジ穴２２ａにネジ止めされている。位置調整の対象であるＬＤ１は、Ｘ軸調整板２６の基準軸ＡＸ上の貫通穴に圧入されて、ＬＤ中継基板１１ごとＸ軸調整板２６に固定されている。 The optical element adjustment holding mechanism 200 according to the second embodiment includes the main body member 2, the Y axis sliding member 3, the Y axis adjustment plate 4, the X axis sliding member 5, and the X of the optical element adjustment holding mechanism 100 according to the first embodiment. As an alternative to the shaft adjusting plate 6, the main body member 22, the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 are provided. That is, the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 are arranged so as to overlap the receiving surface 22s of the main body member 22 in this order from the receiving surface 22s side. ing. In such an arrangement state, four screws 7 pass through holes of respective parts of the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 via the LD adjustment washer 8. The escape shape is passed through and screwed into the screw hole 22 a of the main body member 22. The LD 1 that is the position adjustment target is press-fitted into a through hole on the reference axis AX of the X-axis adjustment plate 26, and is fixed to the X-axis adjustment plate 26 together with the LD relay substrate 11.
　Ｙ軸調整板２４の左右両端には、Ｙ軸調整板２４の受け面２４ｄ（Ｙ軸調整板２４の図５又は図６中可視されない、Ｙ軸摺動部材２３に対向する面）側に突出し、かつＹ軸方向に延びたガイド部２４ｅが形成されている。各ガイド部２４ｅは、Ｙ軸調整板２４が本体部材２２に組み付けられたときに、該ガイド部２４ｅの基準軸ＡＸ側に向かう面が本体部材２２の左右に設けられた一対のガイド面２２ｄの各々に面接触して、ガイドされる。組立仮状態においてＹ軸調整板２４は、ガイド部２４ｅがガイド面２２ｄにガイドされることにより、Ｘ軸方向の移動が規制（禁止）されつつもＹ軸方向の移動が一定量許容されている。 The left and right ends of the Y-axis adjustment plate 24 protrude toward the receiving surface 24d of the Y-axis adjustment plate 24 (the surface of the Y-axis adjustment plate 24 that is not visible in FIG. 5 or 6 and faces the Y-axis sliding member 23). And the guide part 24e extended in the Y-axis direction is formed. Each guide portion 24e has a pair of guide surfaces 22d provided on the left and right sides of the main body member 22 so that the surfaces toward the reference axis AX side of the guide portion 24e when the Y-axis adjusting plate 24 is assembled to the main body member 22. Each is guided in surface contact. In the temporarily assembled state, the Y-axis adjusting plate 24 is allowed to move in the Y-axis direction by a certain amount while the movement in the X-axis direction is restricted (prohibited) by the guide portion 24e being guided by the guide surface 22d. .
　また、Ｙ軸調整板２４の上下両端には、Ｙ軸調整板２４の受け面２４ｃ（Ｙ軸調整板２４の図５又は図６中可視される面）側に突出し、かつＸ軸方向に延びたガイド部２４ｆが形成されている。Ｘ軸調整板２６は、上下一対の端面がガイド面２６ｃとして構成されている。Ｘ軸調整板２６は、Ｘ軸摺動部材２５を介してＹ軸調整板２４に組み付けられる。各ガイド面２６ｃは、Ｘ軸調整板２６がＹ軸調整板２４に組み付けられたとき、上下一対のガイド部２４ｆの各々に面接触する。これにより、Ｘ軸調整板２６は、組立仮状態において、Ｙ軸方向の移動が規制（禁止）されつつもＸ軸方向の移動が一定量許容されている。 Further, the upper and lower ends of the Y-axis adjusting plate 24 protrude toward the receiving surface 24c (the surface of the Y-axis adjusting plate 24 visible in FIG. 5 or 6) of the Y-axis adjusting plate 24 and extend in the X-axis direction. A guide portion 24f is formed. The X-axis adjusting plate 26 has a pair of upper and lower end surfaces configured as a guide surface 26c. The X-axis adjustment plate 26 is assembled to the Y-axis adjustment plate 24 via the X-axis sliding member 25. Each guide surface 26c comes into surface contact with each of the pair of upper and lower guide portions 24f when the X-axis adjustment plate 26 is assembled to the Y-axis adjustment plate 24. As a result, the X-axis adjusting plate 26 is allowed to move in the X-axis direction by a certain amount while being restricted (prohibited) in the Y-axis direction in the temporarily assembled state.
　Ｙ軸摺動部材２３、Ｙ軸調整板２４、Ｘ軸摺動部材２５、Ｘ軸調整板２６の各部品の外形状は、本体部材２２の受け面２２ｓに形成された治具用挿入穴２２ｂを逃げるように形成されている。そのため、治具用挿入穴２２ｂは、組立仮状態（および組立完成状態）において外部に露出している。治具用挿入穴２２ｂに対する逃げ量は、各部品のうち、Ｙ軸調整板２４に形成された長溝２４ｇが最も少ない。長溝２４ｇは、Ｘ方向に平行で互いに向き合う内壁面を持つ。かかる内壁面間の距離（溝幅）は距離ｄ１である。 The outer shape of each component of the Y-axis sliding member 23, the Y-axis adjusting plate 24, the X-axis sliding member 25, and the X-axis adjusting plate 26 is a jig insertion hole 22b formed in the receiving surface 22s of the main body member 22. It is formed to escape. Therefore, the jig insertion hole 22b is exposed to the outside in the provisional assembly state (and the assembly completion state). The amount of relief with respect to the jig insertion hole 22b is the smallest of the long grooves 24g formed in the Y-axis adjusting plate 24 among the components. The long grooves 24g have inner wall surfaces that are parallel to the X direction and face each other. The distance between such inner wall surface (groove width) is the distance d 1.
　第二実施形態の光学素子調整保持機構２００におけるＬＤ１の位置調整には、調整用治具１０００が使用される。本体部材２２の治具用挿入穴２２ｂには、ＬＤ１のＹ軸方向の位置調整を行うため、調整用治具１０００の調整ピン１００４が挿入される。調整ピン１００４を治具用挿入穴２２ｂに挿入するとき、軸１００２の外周面が長溝２４ｇの内壁面の何れかの部位と１線で接触する様に、溝幅ｄ１は調整用治具１０００の軸１００２の直径ｄ１1よりプラス公差に設計されている。 An adjustment jig 1000 is used to adjust the position of the LD 1 in the optical element adjustment holding mechanism 200 of the second embodiment. An adjustment pin 1004 of the adjustment jig 1000 is inserted into the jig insertion hole 22b of the main body member 22 in order to adjust the position of the LD 1 in the Y-axis direction. When inserting the adjust pin 1004 jig insertion hole 22b, as the outer peripheral surface of the shaft 1002 is in contact with any part and 1 line of the inner wall surface of the long groove 24 g, the groove width d 1 is adjustment jig 1000 The shaft 1002 is designed to have a plus tolerance from the diameter d 11 of the shaft 1002.
　本体部材２２の治具用挿入穴２２ｂは、調整用治具１０００の調整ピン１００４と同一の直径を有している。但し、調整ピン１００４の直径はマイナス公差で設計されている。したがって、調整用治具１０００を使用する作業者は、調整ピン１００４を治具用挿入穴２２ｂに挿入させた後、当該治具をＺ軸周りに円滑に回すことができる。調整ピン１００４が治具用挿入穴２２ｂに挿入された軸１００２は、治具用挿入穴２２ｂを中心に、偏芯量に対応した偏芯回転をする。 The jig insertion hole 22 b of the main body member 22 has the same diameter as the adjustment pin 1004 of the adjustment jig 1000. However, the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 22b. The shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 22b rotates eccentrically corresponding to the amount of eccentricity around the jig insertion hole 22b.
　調整用治具１０００の軸１００２を偏芯回転させたとき、Ｙ軸調整板２４は、長溝２４ｇの内壁面が軸１００２の外周面によって押されることにより、偏芯回転に応じた偏芯量分Ｙ軸方向に移動される。このとき、Ｙ軸調整板２４に組み付けられたＸ軸調整板２６、Ｘ軸調整板２６とＹ軸調整板２４との間に保持されたＸ軸摺動部材２５、Ｘ軸調整板２６に取り付けられたＬＤ１およびＬＤ中継基板１１は、Ｙ軸調整板２４と一体にＹ軸方向に移動する。 When the shaft 1002 of the adjusting jig 1000 is eccentrically rotated, the Y-axis adjusting plate 24 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the long groove 24g being pushed by the outer peripheral surface of the shaft 1002. It is moved in the Y-axis direction. At this time, the X-axis adjusting plate 26 assembled to the Y-axis adjusting plate 24, the X-axis sliding member 25 held between the X-axis adjusting plate 26 and the Y-axis adjusting plate 24, and the X-axis adjusting plate 26 are attached. The LD 1 and LD relay substrate 11 thus moved move in the Y-axis direction together with the Y-axis adjusting plate 24.
　Ｙ軸調整板２４の受け面２４ｃには治具用挿入穴２４ｈが形成されている。Ｘ軸摺動部材２５、Ｘ軸調整板２６の各部品の外形状は、治具用挿入穴２４ｈを逃げるように形成されている。そのため、治具用挿入穴２４ｈは、組立仮状態（および組立完成状態）において外部に露出している。治具用挿入穴２４ｈに対する逃げ量は、各部品のうち、Ｙ軸調整板２４に形成されたＵ溝２６ｕが最も少ない。Ｕ溝２６ｕは、Ｙ方向に平行で互いに向き合う内壁面を持つ。かかる内壁面間の距離（溝幅）は、長溝２４ｇの溝幅と同じく距離ｄ１である。 A jig insertion hole 24 h is formed in the receiving surface 24 c of the Y-axis adjusting plate 24. The outer shape of each part of the X-axis sliding member 25 and the X-axis adjusting plate 26 is formed so as to escape from the jig insertion hole 24h. Therefore, the jig insertion hole 24h is exposed to the outside in the provisional assembly state (and the assembly completion state). The amount of relief with respect to the jig insertion hole 24h is the smallest among the U grooves 26u formed in the Y-axis adjusting plate 24 among the components. The U groove 26u has inner wall surfaces that are parallel to the Y direction and face each other. The distance (groove width) between the inner wall surfaces is the distance d 1 as with the groove width of the long groove 24g.
　Ｙ軸調整板２４の治具用挿入穴２４ｈには、ＬＤ１のＸ軸方向の位置調整を行うため、調整用治具１０００の調整ピン１００４が挿入される。調整ピン１００４を治具用挿入穴２４ｈに挿入するとき、軸１００２の外周面がＵ溝２６ｕの内壁面の何れかの部位と１線で接触する様に、溝幅ｄ１は調整用治具１０００の軸１００２の直径ｄ１1よりプラス公差に設計されている。 An adjustment pin 1004 of the adjustment jig 1000 is inserted into the jig insertion hole 24h of the Y-axis adjustment plate 24 in order to adjust the position of the LD 1 in the X-axis direction. When inserting the adjust pin 1004 into the insertion hole 24h jig, as the outer peripheral surface of the shaft 1002 is in contact with any part and 1 line of the inner wall surface of the U-groove 26u, the groove width d 1 is adjustment jig It is designed with a plus tolerance from the diameter d 11 of the shaft 1002 of 1000.
　Ｙ軸調整板２４の治具用挿入穴２４ｈは、調整用治具１０００の調整ピン１００４と同一の直径を有している。但し、調整ピン１００４の直径はマイナス公差で設計されている。したがって、調整用治具１０００を使用する作業者は、調整ピン１００４を治具用挿入穴２４ｈに挿入させた後、当該治具をＺ軸周りに円滑に回すことができる。調整ピン１００４が治具用挿入穴２４ｈに挿入された軸１００２は、治具用挿入穴２４ｈを中心に、偏芯量に対応した偏芯回転をする。 The jig insertion hole 24 h of the Y-axis adjustment plate 24 has the same diameter as the adjustment pin 1004 of the adjustment jig 1000. However, the diameter of the adjustment pin 1004 is designed with a minus tolerance. Therefore, an operator using the adjustment jig 1000 can smoothly turn the jig around the Z axis after inserting the adjustment pin 1004 into the jig insertion hole 24h. The shaft 1002 in which the adjustment pin 1004 is inserted into the jig insertion hole 24h rotates eccentrically corresponding to the amount of eccentricity around the jig insertion hole 24h.
　調整用治具１０００の軸１００２を偏芯回転させたとき、Ｘ軸調整板２６は、Ｕ溝２６ｕの内壁面が軸１００２の外周面によって押されることにより、偏芯回転に応じた偏芯量分Ｘ軸方向に移動される。これにより、Ｘ軸調整板２６に取り付けられたＬＤ１およびＬＤ中継基板１１は、Ｘ軸調整板２６と一体にＸ軸方向に移動する。 When the shaft 1002 of the adjustment jig 1000 is eccentrically rotated, the X-axis adjusting plate 26 has an eccentric amount corresponding to the eccentric rotation by the inner wall surface of the U groove 26u being pushed by the outer peripheral surface of the shaft 1002. It is moved in the minute X-axis direction. As a result, the LD 1 and the LD relay substrate 11 attached to the X-axis adjustment plate 26 move in the X-axis direction integrally with the X-axis adjustment plate 26.
　以上に説明された作業を行うことにより、第一実施形態と同様に、ＬＤ１の位置がＸ軸方向又はＹ軸方向に微調整される。第二実施形態においても第一実施形態と同じく、本体部材２２の受け面２２ｓとＹ軸調整板２４の受け面２４ｃ、又はＹ軸調整板２４の受け面２４ｄとＸ軸調整板２６の受け面２６ｂ（Ｘ軸調整板２６の図５又は図６中可視されない、Ｘ軸摺動部材２５と対向する面）の直接の摩擦を有効に避けるべく、本体部材２２とＹ軸調整板２４との間にＹ軸摺動部材２３が、Ｙ軸調整板２４とＸ軸調整板２６との間にＸ軸摺動部材２５が、それぞれ介在されている。このように受け面間に摺動部材を介在させることにより、各受け面の機械加工による面粗さの向上や研磨仕上げを要することなく、Ｙ軸調整板２４のＹ軸方向への移動、又はＸ軸調整板２６のＸ軸方向への移動が円滑となっている。 By performing the operations described above, the position of the LD 1 is finely adjusted in the X-axis direction or the Y-axis direction as in the first embodiment. Also in the second embodiment, as in the first embodiment, the receiving surface 22s of the main body member 22 and the receiving surface 24c of the Y-axis adjusting plate 24, or the receiving surface 24d of the Y-axis adjusting plate 24 and the receiving surface of the X-axis adjusting plate 26 are used. 26b (a surface of the X-axis adjusting plate 26 that is not visible in FIG. 5 or FIG. 6 and faces the X-axis sliding member 25) is effectively avoided between the body member 22 and the Y-axis adjusting plate 24. The Y-axis sliding member 23 is interposed between the Y-axis adjusting plate 24 and the X-axis adjusting plate 26, respectively. By interposing the sliding member between the receiving surfaces in this way, the Y-axis adjusting plate 24 can be moved in the Y-axis direction without requiring improvement in surface roughness and polishing finish by machining of each receiving surface, or The X-axis adjusting plate 26 moves smoothly in the X-axis direction.
　図７は、本発明の第三実施形態の光学素子調整保持機構３００の構成を分解して示す分解斜視図である。第三実施形態の光学素子調整保持機構３００は、例えば光ピックアップ装置に搭載される調整保持機構であり、必要に応じて調整が施される受光センサ３１およびその周辺部品を保持する。受光センサ３１は、光ディスク（不図示）の記録面に記録された情報を読み取るために該記録面上に照射されたレーザー光の戻り光を受光する。 FIG. 7 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 300 according to the third embodiment of the present invention. The optical element adjustment holding mechanism 300 according to the third embodiment is an adjustment holding mechanism mounted on, for example, an optical pickup device, and holds the light receiving sensor 31 and its peripheral components that are adjusted as necessary. The light receiving sensor 31 receives return light of laser light irradiated on the recording surface in order to read information recorded on the recording surface of an optical disc (not shown).
　図７に示されるように、光学素子調整保持機構３００は、受光センサ３１を保持するための金属製の本体部材３２を有している。本体部材３２の受け面３２ｓには、受け面３２ｓ側から順に、摺動部材３３、受光センサ補強板３４が重なるように配置されている。かかる配置状態で、２本のネジ７が受光センサ調整座金８８を介して摺動部材３３、受光センサ補強板３４の各部品の貫通穴を通されて、本体部材３２のネジ穴３２ａにネジ止めされている。第三実施形態において位置調整の対象となる受光センサ３１は、例えばＦＰＣである受光センサ中継基板３５に実装されている。受光センサ３１は、受光センサ補強板３４の基準軸ＡＸ上の貫通穴に取り付けられて、受光センサ中継基板３５ごと受光センサ補強板３４に固定されている。このとき受光センサ３１の受光面は、光ディスクからの戻り光を受光すべく、受光センサ補強板３４の受け面３４ｄ（受光センサ補強板３４の図７中可視されない、摺動部材３３に対向する面）側に露出される。 As shown in FIG. 7, the optical element adjustment holding mechanism 300 has a metal main body member 32 for holding the light receiving sensor 31. The sliding member 33 and the light receiving sensor reinforcing plate 34 are arranged on the receiving surface 32 s of the main body member 32 in this order from the receiving surface 32 s side. In such an arrangement state, the two screws 7 are passed through the through holes of the sliding member 33 and the light receiving sensor reinforcing plate 34 via the light receiving sensor adjustment washer 88, and screwed into the screw holes 32 a of the main body member 32. Has been. In the third embodiment, the light receiving sensor 31 to be subjected to position adjustment is mounted on a light receiving sensor relay substrate 35 that is, for example, an FPC. The light receiving sensor 31 is attached to a through hole on the reference axis AX of the light receiving sensor reinforcing plate 34 and is fixed to the light receiving sensor reinforcing plate 34 together with the light receiving sensor relay substrate 35. At this time, the light receiving surface of the light receiving sensor 31 receives the return light from the optical disk, and receives the receiving surface 34d of the light receiving sensor reinforcing plate 34 (the surface of the light receiving sensor reinforcing plate 34 that is not visible in FIG. 7 and faces the sliding member 33). ) Side exposed.
　受光センサ３１の位置調整には、例えば文献１に開示される保持ヘッドと同様の構成を有する治具が使用される。具体的には、光学素子調整保持機構３００が組立仮状態であるとき、保持ヘッドのテーパーピンが光センサ補強板３４に形成されたガイド穴３４ｉに挿入される。この状態で保持ヘッドがＸ軸方向又はＹ軸方向に移動されることにより、光センサ補強板３４がＸ軸方向又はＹ軸方向に移動される。このとき光センサ補強板３４に取り付けられた受光センサ３１および受光センサ中継基板３５も、光センサ補強板３４と一体にＸ軸方向又はＹ軸方向に移動される。 For the position adjustment of the light receiving sensor 31, for example, a jig having the same configuration as the holding head disclosed in Document 1 is used. Specifically, when the optical element adjustment holding mechanism 300 is in an assembly temporarily state, the taper pin of the holding head is inserted into the guide hole 34 i formed in the optical sensor reinforcing plate 34. In this state, when the holding head is moved in the X-axis direction or the Y-axis direction, the optical sensor reinforcing plate 34 is moved in the X-axis direction or the Y-axis direction. At this time, the light receiving sensor 31 and the light receiving sensor relay board 35 attached to the optical sensor reinforcing plate 34 are also moved in the X-axis direction or the Y-axis direction integrally with the optical sensor reinforcing plate 34.
　第三実施形態においても第一又は第二実施形態と同じく、本体部材３２の受け面３２ｓと光センサ補強板３４の受け面３４ｄの直接の摩擦を有効に避けるべく、本体部材３２と光センサ補強板３４との間に摺動部材３３が介在されている。このように受け面間に摺動部材を介在させることにより、各受け面の機械加工による面粗さの向上や研磨仕上げを要することなく、光センサ補強板３４のＸ軸方向又はＹ軸方向への移動が円滑となっている。 Also in the third embodiment, as in the first or second embodiment, in order to effectively avoid the direct friction between the receiving surface 32s of the main body member 32 and the receiving surface 34d of the optical sensor reinforcing plate 34, the main body member 32 and the optical sensor reinforcement. A sliding member 33 is interposed between the plate 34. By interposing the sliding member between the receiving surfaces in this way, the optical sensor reinforcing plate 34 can be moved in the X-axis direction or the Y-axis direction without requiring improvement of surface roughness or polishing finish by machining of each receiving surface. The movement is smooth.
　図８は、本発明の第四実施形態の光学素子調整保持機構４００の構成を分解して示す分解斜視図である。第四実施形態の光学素子調整保持機構４００は、必要に応じて調整が施される、レーザープリンタや光ピックアップ装置等の光学機器に搭載されるレンズユニットを保持する。 FIG. 8 is an exploded perspective view showing an exploded configuration of the optical element adjustment holding mechanism 400 according to the fourth embodiment of the present invention. The optical element adjustment holding mechanism 400 according to the fourth embodiment holds a lens unit mounted on an optical device such as a laser printer or an optical pickup device, which is adjusted as necessary.
　図８に示されるように、光学素子調整保持機構４００は、レンズユニット４１（複数枚のレンズで構成される光学系をレンズ枠で保持したユニット）を保持する金属製のレンズユニットマウント部材４２を有している。レンズユニットマウント部材４２の受け面４２ｓには、摺動部材４３が重ねられる。摺動部材４３は、受け面４２ｓに対応した形状（Ｖ溝に近似した形状）を有している。摺動部材４３には、レンズユニットマウント部材４２に対する摺動部材４３の位置を固定するための位置決め用凸部４３ａが形成されている。位置決め用凸部４３ａが受け面４２ｓに形成された位置決め用凹部４２ｂに嵌ることにより、レンズユニットマウント部材４２に対する摺動部材４３の位置が簡易に決まる。 As shown in FIG. 8, the optical element adjustment holding mechanism 400 includes a metal lens unit mount member 42 that holds a lens unit 41 (a unit in which an optical system including a plurality of lenses is held by a lens frame). Have. A sliding member 43 is overlaid on the receiving surface 42 s of the lens unit mount member 42. The sliding member 43 has a shape corresponding to the receiving surface 42s (a shape approximating a V groove). The sliding member 43 is formed with a positioning convex portion 43 a for fixing the position of the sliding member 43 with respect to the lens unit mount member 42. By fitting the positioning convex portion 43a into the positioning concave portion 42b formed on the receiving surface 42s, the position of the sliding member 43 with respect to the lens unit mount member 42 is easily determined.
　摺動部材４３上にはレンズユニット４１が配置され、さらに、摺動部材４３との間でレンズユニット４１を狭持すべくレンズユニット固定板４４が配置されている。かかる配置状態で、４本のネジ７が摺動部材４３、レンズユニット固定板４４の各部品の貫通穴を通されて、レンズユニットマウント部材４２のネジ穴４２ａにネジ止めされている。位置調整の対象となるレンズユニット４１は、組立仮状態又は組立完成状態の何れにおいても摺動部材４３とレンズユニット固定板４４との間に狭持されている。具体的には、レンズユニット４１は、外周面が摺動部材４３の２つの傾斜面の各々とＺ軸方向に延びた線で線接触するとともに、レンズユニット固定板４４の円筒形状部分の内壁面とＺ軸方向に延びた線で線接触している。そのため、レンズユニット４１は、Ｘ軸方向、Ｙ軸方向への移動が規制（禁止）されている。但し、組立仮状態において摺動部材４３とレンズユニット固定板４４によるレンズユニット４１に対する狭持力が比較的弱いため、レンズユニット４１のＺ軸方向の移動は許容されている。 A lens unit 41 is disposed on the sliding member 43, and a lens unit fixing plate 44 is disposed to hold the lens unit 41 with the sliding member 43. In such an arrangement state, the four screws 7 are passed through the through holes of the sliding member 43 and the lens unit fixing plate 44 and are screwed into the screw holes 42 a of the lens unit mount member 42. The lens unit 41 to be subjected to position adjustment is held between the sliding member 43 and the lens unit fixing plate 44 in either the provisional assembly state or the assembly completion state. Specifically, the lens unit 41 is in line contact with each of the two inclined surfaces of the sliding member 43 with a line extending in the Z-axis direction, and the inner wall surface of the cylindrical portion of the lens unit fixing plate 44. Are in line contact with a line extending in the Z-axis direction. Therefore, the movement of the lens unit 41 in the X-axis direction and the Y-axis direction is restricted (prohibited). However, since the holding force with respect to the lens unit 41 by the sliding member 43 and the lens unit fixing plate 44 is relatively weak in the temporarily assembled state, the movement of the lens unit 41 in the Z-axis direction is allowed.
　レンズユニット４１（レンズ枠）の外周面には全周に亘り、所定の幅を持つ溝部４１ａが形成されている。組立仮状態（および組立完成状態）において溝部４１ａは、該溝部４１ａの一部が、レンズユニット固定板４４に形成された調整治具アクセス穴４４ａから露出している。レンズユニット４１の位置調整を行う場合、作業者は、所定の治具を調整治具アクセス穴４４ａを介して溝部４１ａに勘合させて、該治具をＹ軸方向周りに回す。所定の治具の例としては、図３に示されるような形状で、調整ピン１００４の直径がレンズユニット４１の溝部４１ａの幅寸法よりマイナス公差に設計されていて、且つ軸１００２の直径ｄ１1が、レンズユニット固定板４４の調整治具アクセス穴４４ａの直径よりマイナス公差に設計されている様な物が好ましい。これにより、レンズユニット４１が他の部品に対して該治具を回した量に応じた距離分Ｚ軸方向にスライドする。レンズユニット４１のＺ軸方向の調整により、レンズユニット４１が有する光学系のピント位置が調整される。 On the outer peripheral surface of the lens unit 41 (lens frame), a groove 41a having a predetermined width is formed over the entire circumference. In the provisional assembly state (and assembly completion state), a part of the groove 41 a is exposed from the adjustment jig access hole 44 a formed in the lens unit fixing plate 44. When adjusting the position of the lens unit 41, the operator fits a predetermined jig into the groove 41a via the adjustment jig access hole 44a and rotates the jig around the Y-axis direction. As an example of the predetermined jig, a shape as shown in FIG. 3 is used, and the diameter of the adjustment pin 1004 is designed to be more negative than the width of the groove 41a of the lens unit 41, and the diameter d 11 of the shaft 1002 is used. However, it is preferable that the lens unit fixing plate 44 is designed to have a minus tolerance from the diameter of the adjusting jig access hole 44a. As a result, the lens unit 41 slides in the Z-axis direction by a distance corresponding to the amount of rotation of the jig relative to other components. By adjusting the lens unit 41 in the Z-axis direction, the focus position of the optical system of the lens unit 41 is adjusted.
　第四実施形態においても第一実施形態から第三実施形態の各実施形態と同じく、レンズユニットマウント部材４２の受け面４２ｓとレンズユニット４１の外周面の直接の摩擦を有効に避けるべく、レンズユニットマウント部材４２とレンズユニット４１の外周面との間に摺動部材４３が介在されている。このように摩擦抵抗の高い面の間に摺動部材を介在させることにより、各面の機械加工による面粗さの向上や研磨仕上げを要することなく、レンズユニット４１のＺ軸方向への移動が円滑となっている。被調整部品を受ける受け面が滑らかな面状態に加工仕上げを施すのが難しい面形状（ここではＶ溝に近似した形状）であるほど、摺動部材による摺動性向上の効果がより一層発揮される。 In the fourth embodiment, as in the first to third embodiments, in order to effectively avoid direct friction between the receiving surface 42s of the lens unit mount member 42 and the outer peripheral surface of the lens unit 41, the lens unit. A sliding member 43 is interposed between the mount member 42 and the outer peripheral surface of the lens unit 41. By interposing the sliding member between the surfaces having high frictional resistance in this way, the lens unit 41 can be moved in the Z-axis direction without requiring improvement in surface roughness or polishing finish by machining each surface. It is smooth. The effect of improving the slidability by the sliding member is more pronounced as the surface shape (in this case, the shape approximated to the V-groove) that makes it difficult to finish the receiving surface that receives the component to be adjusted is smooth. Is done.
　以上が本発明の実施形態である。本発明に係る光学素子調整保持機構は、上記の構成に限定されるものではなく、本発明の技術的思想の範囲において様々な変形が可能である。例えば摺動部材は金属部品に限らず、帯電防止処理等が施された樹脂製シートとしてもよい。 The above is the embodiment of the present invention. The optical element adjustment holding mechanism according to the present invention is not limited to the above-described configuration, and various modifications are possible within the scope of the technical idea of the present invention. For example, the sliding member is not limited to a metal part, and may be a resin sheet subjected to an antistatic treatment or the like.
　第一実施形態の光学素子調整保持機構１００は、治具用ピン４ａおよび基準ピン４ｂをガイドするため、ガイド長穴２ｃのＸ軸方向の幅が治具用ピン４ａ、基準ピン４ｂの直径と略同一に構成されている。第一実施形態の光学素子調整保持機構１００の変形例として、ガイド長穴２ｃの代替として、又はガイド長穴２ｃとともに治具用ピン４ａおよび基準ピン４ｂをガイドすべく、逃げ穴３ａのＸ軸方向の幅を治具用ピン４ａ、基準ピン４ｂの直径と略同一に構成してもよい。 Since the optical element adjustment holding mechanism 100 of the first embodiment guides the jig pin 4a and the reference pin 4b, the width of the guide slot 2c in the X-axis direction is equal to the diameter of the jig pin 4a and the reference pin 4b. It is comprised substantially the same. As a modification of the optical element adjustment holding mechanism 100 of the first embodiment, the X axis of the escape hole 3a is used as an alternative to the guide long hole 2c or to guide the jig pin 4a and the reference pin 4b together with the guide long hole 2c. The width in the direction may be configured to be substantially the same as the diameter of the jig pin 4a and the reference pin 4b.
　摺動部材は、本発明の各実施形態では加工費の安い単発プレス加工品であるが、別の実施形態では摺動部材周辺の部品の形状等に合わせて曲げ加工等が施された順送プレス加工品としてもよい。 In each embodiment of the present invention, the sliding member is a single press processed product with a low processing cost. In another embodiment, the sliding member is progressively fed in accordance with the shape of the parts around the sliding member. It may be a pressed product.

Claims (4)

  1. 　光学素子が取り付けられた被調整部品を保持する光学素子調整保持機構において、
    ネジ止めにより前記被調整部品が固定される基台を有し、前記ネジを本締めして前記被調整部品を前記基台に固定する前段階において該基台に対して該被調整部品を移動自在とするため、該基台と該被調整部品との間に、表面の摩擦抵抗が該基台又は該被調整部品より低い摺動部材を介在させたことを特徴とする光学素子調整保持機構。     In the optical element adjustment holding mechanism for holding the adjusted component to which the optical element is attached,
    The base has a base to which the part to be adjusted is fixed by screwing, and the part to be adjusted is moved with respect to the base in a stage before the screw is tightened to fix the part to be adjusted to the base. An optical element adjusting and holding mechanism characterized in that a sliding member having a lower surface friction resistance than the base or the component to be adjusted is interposed between the base and the component to be adjusted. .
  2. 　前記摺動部材は、前記ネジが挿入されて通される貫通穴を有し、
    　前記貫通穴は、前記基台に対する前記摺動部材の移動が規制されるよう、前記ネジの径と略同一径を有することを特徴とする、請求項１に記載の光学素子調整保持機構。     The sliding member has a through hole through which the screw is inserted,
    2. The optical element adjustment holding mechanism according to claim 1, wherein the through hole has substantially the same diameter as that of the screw so that movement of the sliding member relative to the base is restricted.
  3. 　前記摺動部材は、板金材料をプレスしたプレス加工品であることを特徴とする、請求項１または請求項２の何れかに記載の光学素子調整保持機構。 3. The optical element adjustment holding mechanism according to claim 1, wherein the sliding member is a press-worked product obtained by pressing a sheet metal material.
  4. 　前記基台と前記被調整部品との間に配置された移動規制板であって、前記前段階において、第一の方向にだけ移動自在に該基台に支持されつつ、該被調整部品を該第一の方向に直交する第二の方向にだけ移動自在に支持した移動規制板をさらに有し、
    　前記摺動部材は、前記基台と前記移動規制板との間、および該移動規制板と前記被調整部品との間にそれぞれ介在されていることを特徴とする、請求項１から請求項３の何れかに記載の光学素子調整保持機構。     A movement restricting plate disposed between the base and the component to be adjusted, wherein the component to be adjusted is supported by the base so as to be movable only in a first direction in the previous stage. It further has a movement restricting plate that is movably supported only in the second direction orthogonal to the first direction,
    The said sliding member is each interposed between the said base and the said movement control board, and between this movement control board and the said to-be-adjusted component, The Claims 1-3 characterized by the above-mentioned. The optical element adjustment holding mechanism according to any one of the above.
PCT/JP2008/070866 2008-11-17 2008-11-17 Optical element adjusting/holding mechanism WO2010055587A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114488A (en) * 1990-09-04 1992-04-15 Canon Inc Emission optical device
JPH06259798A (en) * 1993-03-08 1994-09-16 Ricoh Co Ltd Optical pickup and fixing device for its semiconductor laser
JPH07181413A (en) * 1993-12-22 1995-07-21 Fuji Xerox Co Ltd Light source device
JPH08340150A (en) * 1995-06-12 1996-12-24 Seiko Epson Corp Light source device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114488A (en) * 1990-09-04 1992-04-15 Canon Inc Emission optical device
JPH06259798A (en) * 1993-03-08 1994-09-16 Ricoh Co Ltd Optical pickup and fixing device for its semiconductor laser
JPH07181413A (en) * 1993-12-22 1995-07-21 Fuji Xerox Co Ltd Light source device
JPH08340150A (en) * 1995-06-12 1996-12-24 Seiko Epson Corp Light source device

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