CN1235077C - Camera device and holding mechanism for optical parts - Google Patents
Camera device and holding mechanism for optical parts Download PDFInfo
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- CN1235077C CN1235077C CN 00124571 CN00124571A CN1235077C CN 1235077 C CN1235077 C CN 1235077C CN 00124571 CN00124571 CN 00124571 CN 00124571 A CN00124571 A CN 00124571A CN 1235077 C CN1235077 C CN 1235077C
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Abstract
A camera device, can prevent the interference between the circuit boards, wherein the mage pick-up device mounted on the circuit boards is respectively arranged onto the imaging position used for prism separation of optical path separation at narrow part of the space. It includes: a prism, installed on the back of the imaging lens of the imaging position dividing the optical path into different directions; an image pick-up device, arranged on the optical path after being divided by the prism; a circuit board for laying the image pick-up device; a separator, inserted between the image pick-up device and the circuit board in order to layout the photo detector onto the imaging position vicinity of the lens; and a adjusting component adjusting the circuit boards to positioning the image pick-up device to the imaging position.
Description
The present invention relates to the maintaining body of the optical element assembled in small-sized image pickup device used in the optical device such as microscope for example and this camera head.
Now succeeded in developing by being equipped with 2 above picture pick-up devices, for example the Digital Video (camera head) of shooting motion and static picture simultaneously.In the case, arrange the separatory prism of light path at light path from imaging optical system to the image space of arranging picture pick-up device.
The following relation of the distance on the light path of explanation from imaging optical system to the image space of arranging camera head and the separatory prism of light path.The body that is used for microscopical Digital Video etc. is connected with microscope by the bearing (mounting base) that is arranged in the microscope lens barrel part.Be used for the bearing that microscopical bearing adopts the standardized form of so-called C bearing.Distance from the matrix of C bearing to image space is called flange back, is defined as certain-length (17.526mm) (referring to Fig. 9).And, except that the C bearing, also adopt the D bearing sometimes.Under the situation of D bearing, the length of flange back is 12.294mm.
Under the situation that adopts the C bearing, the size of the separatory prism of light path should be encased in the flange back during layout.And if will separate MIcrosope image without relay lens (image rotation lenses) in the space length of flange back, then the size of the separatory shuttle mirror of light path can be encased in the flange back reluctantly.Therefore, the image space of imaging optical system is formed in very on the position near the separatory prism of light path.
Picture pick-up device then is described.So-called picture pick-up device for example is meant generally to constitute an integral body as board-like camera and circuit board that many sort circuit plates, its occupied area are more than a times of picture pick-up device, picture pick-up device in the above with integral body of its formation.
The location regulation method and the fixing means of the optical element in the small-sized image pickup device below are described.For example, as shown in figure 10, for making lens carry out chimeric with its outer garden face and lens barrel for 51,52 groups, it is put on the interior garden face of garden tubular lens barrel 29 successively, garden tubular spacer tube 32 is clipped in the middle, having cut on the face of outer garden on the interior garden face of axial end portion that externally threaded annular screw 31 is screwed into lens barrel 29 on the formed female thread portion, carry out fastening.And, this lens barrel 29 is attached on the pedestal 1 of fuselage with screw 30.In Figure 10, moulding prism 28 is arranged the light that is bonded in pedestal 1 by directly over the 1a of hole.
Figure 11 (a) and (b) are that the content of Figure 10 is improved, and utilize the V font groove of fuselage one side to improve positional precision, and this is the real example that publishes in the clear 61-201010 communique of opening.Figure 11 (a) is its skiagraph; Figure 11 (b) is its front view (FV).This is that lens 51,52 are inserted on the interior garden face of lens drum 29 of garden tubular, through bonding and constitute parts, utilizes screw 34 that this parts lens barrel 29 is attached on the V groove member 33 that has V font groove on the fuselage.Lens 51,52 critically are fixed on the lens barrel 29 in the case, so, adjust lens barrel 29 if on longitudinal direction, move, improve the precision of V groove member 33, then also can improve the precision of whole optical system.
In addition, also also have example as shown in figure 12, the profile partial operation of lens barrel 29 is become the plane, and on pedestal 1 illustrated step is set, the lens barrel 29 that shape is consistent with this step and a part of joining of fuselage are in the same place, and link with screw 30.In addition, also also have many methods can be used for the positioning and fixing of lens barrel 29 on pedestal 1.But no matter which kind of method all is to carry out certain processing and make hookup mechanism in lens barrel 29 1 sides and pedestal 1 one sides.
Yet there are following two big problems in above-mentioned camera head.The 1st problem is: a plurality of picture pick-up devices of general employing in Digital Video, under the situation that will be arranged into these picture pick-up devices respectively on the image space that separatory prism separates by light path, above-mentioned board-like Digital Video with a plurality of picture pick-up devices, its circuit board is too approaching each other, might produce interference.
The 2nd problem is: along with the miniaturization and the motorized of optical device, arrange that the space of optical system reduces, and need high-precision location, so the maintaining body of the optical element in past produces following problem.For example, if adopt lens barrel 29 shown in Figure 10, then need the external diameter much bigger bobbin of diameter than lens 51,52, if to its screw cutting, then screw thread takies the certain-length of lens barrel, makes the corresponding increase of its profile.If fix lens 51,52 with annular screw 31, then optical axis direction with leave lens 51,52 and need the space laterally.
In addition, around lens barrel 29, necessarily need a kind of to its fixing pedestal 1 of usefulness, under the very little situation of lens 51,52, and surrounded by other parts around, do not have under the situation in the space that pedestal 1 is fixed, will go wrong, can not position fixing lens 51,52.Even fixing position is arranged, also need pedestal 1 and lens barrel 29 are processed, increase workload, thereby cost of products is improved.
And, in order to keep the precision of optical system integral body, the optical system beyond lens barrel 29 is under the situation of the optical system of formation for example shown in Figure 12, form the precision of the convex lens of an integral body with moulding prism 28, can guarantee by incorporate formation method.But, can not guarantee relation with later lens barrel 29.Can not guarantee if rely on the machining precision of the hookup mechanism of processing on the pedestal 1, so, must finely tune operation, moulding prism 28 and lens barrel 29 are carried out moving of slight distance separately.
Under the situation that has picture pick-up devices such as other not shown optical systems or CCD on the optical axis direction of Figure 10, these also need to adjust, and adjusting increases man-hour, and cost of products improves.
In order to address these problems, the purpose of this invention is to provide a kind of camera head, it is specified to image position etc. when adopting C bearing etc., the little place in the space, be arranged on the image space that has been undertaken separating by the separatory prism of light path in this case being contained in picture pick-up device on the circuit board respectively, also can prevent the interference between the circuit board, and position adjustment easily.
In order to achieve the above object, the present invention takes following technical scheme:
A kind of camera head is characterized in that having:
Light path tripping device (67) becomes a plurality of light paths to the beam separation of incident;
A plurality of photo detectors (69,70), it be arranged in to above-mentioned light path tripping device (67) carry out transmission the transmission light path, and branch's light path of having been undertaken separating by above-mentioned light path tripping device on;
The circuit board that a plurality of photo detectors are used (73,74) is provided with above-mentioned a plurality of photo detector respectively; And
Pedestal (64), it has peristome (62), and this peristome passes through incident beam towards above-mentioned light path tripping device, and it keeps above-mentioned light path tripping device;
Dividing plate (71), it is integrally formed between one group photo detector and circuit board at least in above-mentioned a plurality of photo detectors and above-mentioned polylith circuit board;
A plurality of fixed positions adjusting gear (77,78,79,80) can be adjusted a plurality of foregoing circuit plates respectively with respect to the position that installs and fixes of a plurality of foregoing circuit plates,
Make light beam, be injected in the above-mentioned light path tripping device imaging on above-mentioned photo detector by above-mentioned peristome from the outside imaging len that is equipped with of said base.
A kind of maintaining body of optics is characterized in that having:
Optical devices main body (101);
The 1st optics (102), it simultaneously is fixed on the above-mentioned optical devices main body, has the plane vertical with optical axis on another side;
The 2nd optics (103), it at one end has the plane vertical with optical axis on the face, has the 1st and slightly be cylindric portion on the other end;
The 3rd optics (105), its at one end the outer peripheral face of face have and slightly be the 2nd connecting portion cylindraceous (104);
Hookup mechanism (104), it at one end has the inner peripheral surface that the outer peripheral face that slightly is cylindric portion with the above-mentioned the 1st of above-mentioned the 2nd optics can link setting in the portion, has the inner peripheral surface that the outer peripheral face with above-mentioned the 2nd connecting portion of above-mentioned the 3rd optics can link in the other end
With the above-mentioned the 1st of the above-mentioned plane of above-mentioned the 1st optic and the above-mentioned plane of above-mentioned the 2nd optics, above-mentioned the 2nd optics slightly be cylindric and above-mentioned hookup mechanism above-mentioned inner peripheral surface, and the above-mentioned inner peripheral surface of above-mentioned the 2nd connecting portion of above-mentioned the 3rd optics and above-mentioned hookup mechanism fixing respectively.
Effect of the present invention:
If according to the present invention, during then as employing C support, be specified to image position etc., the narrow place in the space, be arranged under the situation on the image space that separates by the separatory prism of light path being contained in picture pick-up device on the circuit board respectively, also can prevent the interference between the circuit board, and can position adjustment at an easy rate.
Following with reference to accompanying drawing, describe embodiments of the invention in detail:
Fig. 1 is the sectional drawing that expression relates to the camera head of the present invention the 1st embodiment.
Fig. 2 is the figure of formation of the major part of the expression camera head that relates to the present invention the 2nd embodiment.
Fig. 3 is the figure of the 1st variation of the identical camera head of expression.
Fig. 4 is the figure of the 1st variation of the identical camera head of expression.
Fig. 5 is the figure of the 1st variation of the identical camera head of expression.
Fig. 6 is the figure of the 1st variation of the identical camera head of expression.
Fig. 7 be expression relate to the of the present invention the 1st and the camera head of the 2nd embodiment beyond other be suitable for figure of example.
Fig. 8 be expression relate to the of the present invention the 1st and the camera head of the 2nd embodiment beyond other be suitable for figure of example.
Fig. 9 is the key diagram of the flange back of expression C bearing.
Figure 10 is the used sectional drawing of the 1st example of the maintaining body of explanation optical element in the past.
Figure 11 is the used sectional drawing of the 2nd example of the maintaining body of explanation optical element in the past.
Figure 12 is the used sectional drawing of the 3rd example of the maintaining body of explanation optical element in the past.
Fig. 1 is the figure that expression relates to the camera head of the present invention the 1st embodiment.On microscope lens barrel 60, fix with screw thread combination logarithmic code video camera fuselage 63 by straight tube 61 of camera and C bearing 62.On Digital Video fuselage 63 underlying foundation 64, form prism table 65, the separatory prism 67 of a kind of light path is adhesively fixed on this prism table 65, this prism 67 is used for separating carry out light path from microscopical image, makes it be divided into this both direction of left among top shown in the figure and the figure.The state that the separatory prism 67 of this light path is arranged such, i.e. the optical axis 68 by microscopical lens barrel 60 is aimed in the center of the light path of prism 67 separation.
In that separatory prism 67 is separated on the formed image space Q1 of not shown imaging optical system, the Q2 on optical axis 68a, the 68b of 2 directions by this light path, come respectively picture pick-up devices such as CCD 69,70 to be positioned adjustment with adjusting gear described later, fixed then.Circuit board 73,74 is corresponding with above-mentioned picture pick-up device 69,70 respectively.
Have, each circuit board 73,74 is by being drawn out to the cable 75 of outer computer from outer installation shell 76 and being connected with computing machine again, by each picture pick-up device 69,70 captured being sent in the not shown outer computer from microscopical image.
A kind of concrete formation of adjusting gear below is described, this adjusting gear is used to adjust each picture pick-up device 69,70, and it is positioned on image space Q1, the Q2 on optical axis 68a, the 68b, and this optical axis is separated into 2 directions by the separatory prism 67 of light path.
The setting of picture pick-up device 69 forms an integral body by dividing plate 71 and circuit board 73, and 71 pairs of picture pick-up devices 69 of this dividing plate and circuit board 73 are electrically connected.
Dividing plate 71 makes picture pick-up device 69 leave circuit board 73, so that 73 distance for example reaches several mm～number 10mm from picture pick-up device 69 to circuit board.This circuit board 73 is adjusted screw 77,78 by means of each and is installed on the adjustment member 79 of L font.
Be used to insert the aperture that each adjusts screw 77,78 on the circuit board 73, on arrow α direction, be a bit larger tham the diameter that each adjusts screw 77,78, so, when utilizing this adjustment screw 77,78 circuit board 73 to be fixed on the adjustment member 79 of L font, circuit board 73 is moved along the direction identical with optical axis 68b direction (arrow α direction), can be to the optical axis 68a of imaging optical system the position alignment of picture pick-up device 69.
And, adjust member 79 and be installed on the pedestal 64 by means of adjusting screw 80.At this, because adjusting the aperture that is used to insert adjustment screw 80 on the member 79, on arrow β direction, be a bit larger tham the diameter of adjusting screw 80, so, when utilizing adjustment screw 80 to be fixed to adjustment member 79 on the pedestal 1, adjustment member 79 is moved along the direction identical with the direction of optical axis 68 (arrow β direction), can on this image space Q1 that carries out imaging from microscopical image, position picture pick-up device 69.
That is to say, by adjustment member 79 is moved on arrow α and β direction, the position alignment that can make picture pick-up device 69 can be positioned to tie on this image space Q1 of picture from microscopical image simultaneously to by on the optical axis 68a of the separatory prism 67 of light path.
On the other hand, the circuit board 74 with picture pick-up device 70 is set on the retaining member 81 on the pedestal 64.This retaining member 81 relies on adjustment screw 82 and is installed on the pedestal 64.At this, because inserting the aperture of adjusting screw 82, being used on the retaining member 81 be a bit larger tham the diameter of adjusting screw 82, so when being fixed to retaining member 81 on the pedestal 64 with adjustment screw 82, make on the circuit board 74 picture pick-up device 70 with the plane of optical axis orthogonal on (arrow γ direction) move to X, Y direction, can be to the optical axis 68b of imaging optical system the position alignment of picture pick-up device 70.
And at this, its formation state is: if picture pick-up device 70 is adjusted on the optical axis 68, then picture pick-up device 70 is positioned on the image space Q2 of imaging optical system.That is to say, move in X, Y direction, can simultaneously, can be positioned to carry out on this image space Q2 of imaging the position alignment of picture pick-up device 70 to by on the optical axis 68b of the separatory prism 67 of light path from microscopical image by making retaining member 81.
Like this, between picture pick-up device 69 and circuit board 73, insert dividing plate 71, make picture pick-up device 69 and circuit board 73 constitute an integral body, simultaneously, circuit board 73 is fixed to the L font adjusts on the member 79 and it can be adjusted.So,, do not need to use fixed component for fixing picture pick-up device 69, and, compare when adjusting on the member with individually being fixed on, also can make fixing that the adjustment member 79 of L font and picture pick-up device 69 realize adjusting more easily.
In addition, with dividing plate 71 picture pick-up device 69 and circuit board 73 are separated and to be arranged, in order to avoid interfered circuit plate 73 and circuit board 74, so, can be arranged into picture pick-up device 69,70 on image space Q1, the Q2 of the separatory prism 67 of light path.
Have again, be arranged on the circuit board 73 by 71 picture pick-up devices 69, and, utilizing each to adjust screw 77,78 is installed to the circuit board 73 that picture pick-up device 69 is housed on the adjustment member 79 of L font, this adjustment member 79 is moved along arrow α and β direction, can utilize adjustment screw 82 to make the retaining member 81 of maintenance picture pick-up device 70 carry out moving of X, Y direction simultaneously with respect to pedestal 64.So, each picture pick-up device 69,70 is positioned on each image space Q1, Q2 on each optical axis 68a, 68b of the separatory prism 67 of light path respectively.
As mentioned above, in the camera head that relates to the 1st embodiment, be positioned at 2 picture pick-up devices 69,70 different under the situation on this image space Q1, the Q2 that carry out imaging from microscopical image of flange back (Off ラ Application ジ バ ッ Network) characteristic, can not influence the necessary performance of the separatory prism 67 of light path, can on image space Q1, the Q2 of flange back, position layout at an easy rate with simple formation.
Moreover, because picture pick-up device 69 is arranged on the circuit board 73 by dividing plate 71, the distance that makes picture pick-up device 69 leave circuit board 73 is number mm～number 10mm, so, need in the flange back of C bearing 62, not insert optical systems such as relay lens, can make the higher Digital Video of optical property.
And, in the above-described embodiments, only separated the formation of between picture pick-up device 69 and circuit board 73, inserting dividing plate, but be not limited only to this, for example, also can adopt the formation of between picture pick-up device 70 and circuit board 74, also inserting dividing plate.And the picture pick-up device 69,70 that above-mentioned characteristic is different for example also can adopt to take 2 used picture pick-up devices of rest image and mobile image respectively, perhaps adopts the different picture pick-up device of Pixel Dimensions for simulating magnification transformable.
Moreover, utilize the separatory prism of light path that light path is separated into 2 directions in the above-described embodiments, but be not limited only to this, for example also can utilize such light path separation method, promptly by plug catoptron freely is set, and only in the picture pick-up device that desire is used, inject the light path that comes from microscope in light path (optical axis).
In addition, the terminal pin of picture pick-up device itself is elongated to replace dividing plate with respect to circuit board, also can obtain effect identical when dividing plate is set.And, can be applicable to not to be the C bearing, but the short situation of flange backs such as D bearing.
Fig. 2 is the sectional drawing of major part that expression relates to the camera head of the 2nd embodiment of the present invention.And, in Fig. 2, for Fig. 1 identical functions part, mark identical symbol, its detailed description is omitted.
A kind of optical system wherein comprises the 1st optical element 102 and the 2nd optical element more than 103 1 at least, and the former has the plane perpendicular with optical axis, is fixed on the pedestal of being installed on the C bearing 62 101; The latter has the plane perpendicular with optical axis, this optical system is characterised in that: be connected between above-mentioned the 1st optical element 102 and the plane perpendicular face of optical axis and above-mentioned the 2nd optical element 103, on the face of the outer garden of this connected the 2nd optical element 103, insert and the axial end portion of the coupling member 104 of bonding garden tubular in interior garden face; At the axial end portion of this coupling member 104, do not have to have inserted the 3rd optical element 105 on the interior garden face of axial end portion of a side of above-mentioned the 2nd optical element 103.
In this formation, come in from the below of the hole 101a of pedestal 101 by the light of optical system, the hole 108a by the adjustment member 108 that can adjust on the face of pedestal 101 is injected in the optical element 102.Optical element 102 is 2 prisms to be bonded together and the beam splitter that forms (separate and use prism), according to certain splitting ratio light directly is divided into direction and 90 and spends the direction that parallels above with pedestal 1 that reflects.
Arrange circuit board 131 above optical element 102, so that picture pick-up device 107A such as CCD is positioned on the image space of not shown imaging optical system, the light that optical element 102 is carried out transmission directly is injected among the picture pick-up device 107A.
And 103, one faces of bonding optical element are planes, and another face is the lens of concave surface.According to the different in kind of optical system, also can be that another face is a convex surface, perhaps the two all is the plane.
This bonding optical element 103 carries out bonding as shown in the figure between the plane to the plane of optical element 103 and optical element 102.This be utilize and usually during the making compound lens identical bonding agent carry out firm bonding.At this moment, consistent in the concavees lens with the optical axis of level.
Coupling member 104 is tube shape components made from metal and plastics, and as shown in the figure, its shape is that a part is entrenched on the external diameter that carries out bonding optical element 103.Coupling member 104 is fitted to carries out on the bonding optical element 103, on the fitting portion of external diameter that carries out bonding optical element 103 and coupling member 104, carry out bonding.Therefore, coupling member 104 itself directly is not fixed on the pedestal 101, but by optical element 102 with carry out bonding optical element 103 and be fixed on the pedestal 101.The another side of coupling member 104 constitutes such shape, and it is chimeric that promptly other optical element 105 utilizes the external diameter of this optical element 105 to carry out, and it is in addition bonding that other optical element 105 is carried out after chimeric.
Be arranged on 2 chimeric shapes on the coupling member 104 and be processed to mutually with one heart, the center of can make horizontal optical axis, carrying out the concavees lens center of bonding optical element 103 and optical element 105 is consistent mutually.
In the time of on the position of image space being adjusted to picture pick-up device 107, unclamp the screw that links with member 108 and pedestal 101 adjusting, can make to adjust and on 101 of pedestals, move with member 108, if optical element 102 is moved, then can adjust the center and picture pick-up device 107 is confocal on 101 of pedestals.
In the case, because optical element 103 and optical element 105 are as a whole,, can make adjustment simple so each optical element can not scatter.
And, in the case, suppose and carried out the optical axis center of overshoot by optical element 102 and the position of picture pick-up device 107 is aimed at.Then, the image pick-up device 107A that is arranged in optical element 102 tops is carried out the optical axis alignment adjustment and to the adjustment of the location of image space.
The above embodiments as shown in Figure 2, the planar section of a side of optical element 103 bonded to the optical element 102 that is fixed on the pedestal 101 with the perpendicular plane of horizontal optical axis on.If carry out bonding optical element 103 lens as shown in Figure 2 in the case, the then bonding one-tenth lens center state consistent with optical axis.
Secondly, with respect to optical element 103, shape can with the coupling member 104 of the profile tabling of this optical element 103, be fitted on the optical element 103 and carry out bonding.
Equally, on an opposite side of the coupling member 104 of bonding optical element 103, chimeric other optical element 105, and carry out bonding.And, on coupling member 104, kept concentricity respectively by bonding optical element 103 and other optical element 105.By it being carried out the bonding center precision that guarantees to carry out bonding optical element 103 and optical element 105 with optical element 102.
And, since do not use large diameter lens barrel, just can make the layout of each circuit board 130,131 simply easy with picture pick-up device 107,107A, so, do not take the space (being about the area surrounded M of dotted line institute) around the optical system, near do not have pedestal 101 can keep many optical elements yet.
Be arranged on the pedestal 101 and it can be adjusted with member 108 by adjusting being fixed on optical element 102 on the pedestal 101, so, just can adjust with respect to the center of below optical axis and to the front and back (confocal) of the image space of picture pick-up device 107.
And in the case, the image of injecting from pedestal 101 is that sample (sample) 109 has passed through object lens 111 and not shown optical system.Image 201 expression is injected into the image that outputs in the picture pick-up device 107A on the monitor etc. (not having diagram), and the direction of this image is identical with sample 109.
But, carry out 1 secondary reflection with optical element 102, produce the picture pick-up device 107 that the image after 90 degree reflect is injected, if directly export, then shown in image 202, direction becomes turn 90 degrees horizontal, upset becomes so-called mirror image about carrying out again.If picture pick-up device 107 directions own are changed 90 degree, so laterally revolving the image that turn 90 degrees will restore to the original state, but mirror image then can not recover if remain untouched.
Therefore, this output signal is sent in the treating apparatus 112.Treating apparatus 112 is made of circuit, in case stored output signal, just carries out electric upset and handles, and can become identical with sample 109 to the direction transformation of image, exports then.And, the output signal after the conversion, its direction is identical with the image of the output signal of sample 109 and picture pick-up device 107A, and both can similarly handle.
And, a kind of like this method is also arranged, promptly without treating apparatus 112, from the optics in being injected into picture pick-up device 107 before, reflect the alignment image direction with prism etc. once more.But when the image to 2 light paths carries out electric processing, adopt the method for the treatment of apparatus 112, very big advantage is being arranged aspect the space of cost and device.
In the camera head of the 2nd embodiment that relates to this formation, also the same with the camera head that relates to above-mentioned the 1st embodiment, its effect is the interference that can prevent between the circuit board 130,131.And, because the optical element on the horizontal optical axis around can reduce volume, and do not need the external diameter of coupling member 104 that the screw and the processing of usefulness are installed, so, can reduce volume greatly, reduce cost.Even near coupling member 104, do not link the place of the pedestal 101 of usefulness, also can design, do not need pedestal 101 is processed yet, so, can further keep optical element originally with lower one-tenth.
And, utilize sensitive element 106 to replace picture pick-up device shown in Figure 2 107 as shown in Figure 3, optical element 102 is adjusted with respect to picture pick-up device 107, do not influence sensitive element 106 yet.
Moreover, adjust and be not limited only to said method with member 108, but also can be like this: for example, guides is arranged on the pedestal 101, so that can move abreast or vertically, realize high-precision adjustment with this, perhaps when being fixed on the pedestal 101 with member 108 with the key screw adjustment with respect to optical axis, sandwich paper tinsel betwixt, on optical axis direction, also can adjust like this.This micromatic setting can adopt the whole bag of tricks under the situation that does not break away from the claim scope.
Fig. 4～Fig. 6 is the figure of variation that expression relates to the camera head of the present invention the 2nd embodiment.And, in these figure, for above-mentioned Fig. 2 identical functions part, then mark identical symbol, its detailed description is omitted.
In example shown in Figure 4, optical element 102 carries out bonding optical element 103 and does not change, and optical element 102 is 3 angle prisms in the figure, and light beam all is directed on the horizontal direction.
Be bonded in amount that the outer radius portion of the 3rd optical element 151 on the coupling member 141 exposes as shown in the figure and be equivalent to half of lens thickness approximately.Also chimeric and another binding parts 142 of having adhered on this outer radius portion.And, also chimeric and bonding another the 4th optical element 152 on the another side of this coupling member 142.
Like this, the relation of coupling member 141,142 and other optical element 151,152 also has relation with the size and the weight of lens.In the bonding strength of optical element 102 and pedestal 101 and depend in the scope that accumulated value allowed of center precision in chimeric gap, can link and constitute many groups.
When wanting to link many lens with common lens barrel mode, it is very long that lens barrel becomes, and processing and assembling are also very difficult.Also can be picture pick-up device 107 location and installation shown in the 1st embodiment to coupling member 142, to replace optical element 152.So, the circuit board that can save picture pick-up device 107 carries out stationary device, can further save the space, also can reduce cost.
In example shown in Figure 5, carry out bonding optical element and do not require it must is lens, as shown in Figure 5, prism 118 is bonded on the prism 102, also no problem.After its positional precision with respect to optical element 102 is adjusted to required degree, carried out bonding by bonding prism 118.On the prism 102 on the exit facet of bonding prism 118 bonding again on optical element 103 (for example lens).
Other formation is identical with other embodiment.Being directed upwardly of coupling member 104 and picture pick-up device 107, so, increase the lens number, also be to form the form of upwards piling up, guarantee precision easily.If bonding agent etc. is filled between the following and pedestal 101 that carries out bonding prism 118, then can improves stability.
In example shown in Figure 6, optical element 102 for example shown in Figure 6 be not prism and beam splitter also can, the face of exiting side is that the plane gets final product, so form optical filtering and flat glass.The light of drawing from light source 116 is by not shown intermediate optical system, again by plane optical component 117.Plane optical component 117 is fixed on the right angle member 115, and its maintenance method is to utilize screw 114 that right angle member 115 is fixed on the pedestal 101.Carry out bonding optical element the center with bond on the plane optical component 117 after optical axis center is aimed at., coupling member 104 is the same with the 1st embodiment with optical element 105 carry out bonding.
If according to present embodiment, then before being fixed to right angle member 115 on the pedestal 101, only mobile right angle member 115 can be adjusted whole optical system at an easy rate.This moves the precision that also can not influence optical system surface plate on light path, so adjustment work is more simple.
And in the above-described embodiments, the function of its formation is: can take the MIcrosope image that is divided into 2 directions by prism with 2 picture pick-up devices.But be not limited only to this.For example, a kind of mechanism of the prism that can insert in light path (optical axis) and extract coupling member bonding etc. is set, so, the layout of picture pick-up device is identical with embodiment, also can make from microscopical light path only to be injected in the picture pick-up device that desire takes.
And the present invention is not limited only to the various embodiments described above.That is to say that in the above-described embodiments, above-mentioned Digital Video fuselage 63 is installed on the microscope, but is not limited only to this, as shown in Figure 7, also can be installed on the C bearing, be contained on the tripod 81 and make a video recording changing lens 80.
Moreover, as shown in Figure 8, also can be installed to Digital Video fuselage 63 on the stand 83 with aiming function 82 and make a video recording.In addition, certainly carry out various changes without departing from the spirit and scope of the present invention.
In addition, the maintaining body of optical element also can be applicable to microscopical ccd video camera (camera head) other aspects in addition.
Effect of the present invention:
If according to the present invention, during then as employing C support, be specified to image position etc., The narrow place in the space, respectively be contained in picture pick-up device on the circuit board be arranged into by In the situation on the image space that the separatory prism of light path separates, also can prevent Interference between the circuit board, and can position at an easy rate adjustment.
Claims (7)
1. camera head is characterized in that having:
Light path tripping device (67) becomes a plurality of light paths to the beam separation of incident;
A plurality of photo detectors (69,70), it be arranged in to above-mentioned light path tripping device (67) carried out transmission the transmission light path, and branch's light path of having been undertaken separating by above-mentioned light path tripping device on;
The circuit board that a plurality of photo detectors are used (73,74) is provided with above-mentioned a plurality of photo detector respectively; And
Pedestal (64), it has peristome (62), and this peristome passes through incident beam towards above-mentioned light path tripping device, and this pedestal keeps above-mentioned light path tripping device;
Dividing plate (71), it is integrally formed between one group photo detector and circuit board at least in above-mentioned a plurality of photo detectors and above-mentioned polylith circuit board;
A plurality of screws and patchhole (77,78,79,80) can be adjusted a plurality of foregoing circuit plates respectively with respect to the position that installs and fixes of said base,
Make light beam, be injected in the above-mentioned light path tripping device imaging on above-mentioned photo detector by above-mentioned peristome from the outside imaging len that is equipped with of said base.
2. camera head is characterized in that having:
Light path tripping device (102) becomes a plurality of light paths to the beam separation of incident;
A plurality of photo detectors (107,107A, 106), it be arranged in to above-mentioned light path tripping device carried out transmission the transmission light path, and branch's light path of having been undertaken separating by above-mentioned light path tripping device on;
The circuit board that a plurality of photo detectors are used (130,131) is provided with above-mentioned a plurality of photo detector respectively; And
Pedestal (101), it has peristome (62), and this peristome passes through incident beam towards above-mentioned light path tripping device, and this pedestal keeps above-mentioned light path tripping device;
Object side lens (103), it is configured in from the above-mentioned transmission light path of above-mentioned light path tripping device and the above-mentioned at least a light path that separates in the light path, and be disposed between above-mentioned light path tripping device and the above-mentioned photo detector, an end is fixed on above-mentioned light path tripping device;
Photo detector side lens (105) are arranged between above-mentioned object side lens and the above-mentioned photo detector;
Link parts (104), link and keep above-mentioned object side lens and above-mentioned photo detector side lens;
Make light beam, be injected in the above-mentioned light path tripping device imaging on above-mentioned photo detector by above-mentioned peristome from the outside above-mentioned imaging len that is equipped with of said base.
3. camera head as claimed in claim 2 is characterized in that: fixedly install intermediate optical parts (118) between above-mentioned light path tripping device and above-mentioned object side lens.
4. camera head as claimed in claim 3 is characterized in that: above-mentioned object side lens (103) are made of the cylindric lens that have the plane vertical with optical axis on an above-mentioned end face; Above-mentioned photo detector side lens (105) are made of cylindric lens; Above-mentioned intermediate optical parts (118) are made of the prism that has the plane vertical with optical axis on the end face.
5. camera head as claimed in claim 2, it is characterized in that: also have the prolongation lens (152) that between above-mentioned photo detector side lens (151) and above-mentioned photo detector, are provided with, and link the binding parts (142) that keep above-mentioned photo detector side lens and above-mentioned prolongation lens (152).
6. camera head as claimed in claim 5 is characterized in that: above-mentioned prolongation lens (152) are made of lens cylindraceous.
7. camera head as claimed in claim 1 or 2 is characterized in that: a plurality of above-mentioned photo detectors have different respectively characteristics.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP271290/1999 | 1999-09-24 | ||
| JP27129099 | 1999-09-24 | ||
| JP046622/2000 | 2000-02-23 | ||
| JP2000046622A JP2001159727A (en) | 1999-09-24 | 2000-02-23 | Holding mechanism for optical part and image pickup unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1289939A CN1289939A (en) | 2001-04-04 |
| CN1235077C true CN1235077C (en) | 2006-01-04 |
Family
ID=26549632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00124571 Expired - Fee Related CN1235077C (en) | 1999-09-24 | 2000-09-21 | Camera device and holding mechanism for optical parts |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2001159727A (en) |
| CN (1) | CN1235077C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5562659B2 (en) * | 2010-01-21 | 2014-07-30 | オリンパス株式会社 | Mounting apparatus and mounting method |
-
2000
- 2000-02-23 JP JP2000046622A patent/JP2001159727A/en not_active Withdrawn
- 2000-09-21 CN CN 00124571 patent/CN1235077C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001159727A (en) | 2001-06-12 |
| CN1289939A (en) | 2001-04-04 |
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