CN1611985A

CN1611985A - Optical assembly and image sensing apparatus with said assembly

Info

Publication number: CN1611985A
Application number: CN 200410086786
Authority: CN
Inventors: 安藤博之; 永田哲生; 松本和宏
Original assignee: Olympus Corp
Current assignee: Olympus Corp
Priority date: 2003-10-31
Filing date: 2004-10-29
Publication date: 2005-05-04
Also published as: JP2005134825A

Abstract

The optical element assembly includes a 1st optical element 10, a 2nd optical element 20 and a positioning/holding member 30, and the 1st optical element 10 is provided with self-engaging parts 15a and 15b arranged on the peripheral part of an effective area 14 as an effective luminous flux passing area on one exit surface side 13 of the element 10 so as to correspond to one pair of engaging parts 35a and 35b formed on one corresponding surface 31 facing the exit surface 13 of the holding member 30, and the 2nd optical element 20 is provided with self-engaging parts 26a and 26b arranged on the peripheral part of an effective area 24 as an effective luminous flux passing area on one incident surface 21 side of the element 20 so as to correspond to the other pair of engaging parts 36a and 36b formed on the other corresponding surface 32 facing the incident surface 21 of the holding member 30, and an optical diaphragm aperture 33 for allowing light to be transmitted from one corresponding surface 31 of the holding member 30 to the other corresponding surface 32 is formed in the holding member 30.

Description

Optical module and have the camera head of this optical module

Technical field

The present invention relates to a kind of optical module that constitutes by the combination of opticses such as a plurality of prisms and this optical module is applied to the camera head (for example, comprising digital camera, mobile phone, PC or video camera etc.) of camera function portion with camera-enabled.

Background technology

In recent years, the miniaturization of the camera head of digital camera, the mobile phone with camera-enabled, PC or video camera etc. has had marked improvement.Follow the miniaturization of camera head,, also pursuing miniaturization, slimming day by day the assembly (is the assembly of main composition parts with the optical system) that is assemblied in the camera function portion in these device main body.

The general optical system of using coaxial system in this assembly.So-called coaxial system is meant the optical axis of relative optical system, and opticses such as lens are configured to rotational symmetric optical system.When making component miniaturization, need to reduce the quantity of lens., if reduce the quantity of lens, then be difficult to reduce aberration.In order to address this problem, propose to use the optical devices of decentered optical system.For example, patent documentation shown below 1～5 proposes to use the prism optical system of free form surface etc.

Patent documentation 1 disclosed content is, for being provided, small-sized light weight, telecentric iris proofread and correct astigmatism etc., the imaging lens system of processing assembling easily well, easily, from the object side order convex surface towards the 1st lens of the diverging meniscus lens of object side, aperture, convex surface towards the 2nd lens of the positive meniscus lens of image planes side as component parts, form the aspheric surface shape by the one side at least that makes these two lens (described the 1st lens, described the 2nd lens), constitute the assembly of the optics that satisfies specified conditions.

Patent documentation 2 disclosed technology are, imaging apparatuss such as CCD are installed on the mobile phone, need not have digital camera or PC, the mobile phone photographic images that utilization can be carried like a cork, and it is easily sent to partner.The camera function portion of this mobile phone comprises optics, and this optics has: be installed in the imaging apparatus on the substrate; Make shot object image image in the lens section of the light-sensitive surface of this imaging apparatus; Support the leg of this lens section.And, by making described leg with the surface of the contact of the contact force below the above 500g of 5g towards the described lens section of described imaging apparatus, compare when making described leg contact described substrate, can carry out the location of optical axis direction of the light-sensitive surface of described lens section and described imaging apparatus accurately.And by contact force is made as more than the 5g, the kine bias in the time of can preventing to make the loosening photography that causes of described optics because of vibration etc. is poor, by contact force is made as below the 500g, can suppress the breakage of described imaging apparatus and dysfunction etc.

Patent documentation 3 disclosed contents are, for provide have optics low pass filter, little and slim imaging optical system cheaply and use the device of this imaging optical system, disclose a kind of combination of optics, the imaging optical system that forms the object picture comprises: aperture; Compare the object side reflecting surface that this aperture is configured in object side; Compare the picture lateral reflection face that described aperture is configured in the picture side, and described object side reflecting surface and described all constituting at reflex time as the lateral reflection face are granted the aspheric surface of focal power to light beam, at described object side reflecting surface with describedly be provided with the low pass filter of shearing radio-frequency component between as the lateral reflection face.

In the imaging optical system of usefulness such as video camera or digital camera, Film scanner, endoscope, follow the miniaturization of imaging apparatus, optical system self is also proposed the requirement of miniaturization and, cost degradation.Recently, the product of built-in electronic image pickup optical system has also occurred in mobile phone or PDA (Personal digital assistance), notebook computer etc., so the further slimming of strong request optical system.

In view of the foregoing, patent documentation 4 and patent documentation 5 are realized high-performance, imaging optical system cheaply in order to provide with the optics that constitutes negligible amounts, and reflecting surface only trihedral light path folding, the high performance imaging optical system of the obvious slimming of vertical direction size of imaging apparatus particularly, disclose and will have the formation that makes up the camera function portion of corresponding above-mentioned requirements as the prism of the necessary characteristic of this optics.

Patent documentation 1 spy opens the 2002-267928 communique

Patent documentation 2 spies open the 2002-320122 communique

Patent documentation 3 spies open flat 11-326766 communique

Patent documentation 4 spies open the 2002-196243 communique

Patent documentation 5 spies open the 2003-084200 communique

Above-mentioned arbitrary document all is only limited to and will selects a plurality of technology of using of combinations such as prism of suitable optical characteristics as optics.Promptly, to how to keep and engage these opticses so that each other position relation maintains prescribed relationship, how to avoid producing unwanted light beam and influence thereof, how to guarantee easy manufacturing, forms which kind of structure and could not be subject to dust influence or the like, the technology of the technical matters to as the product specific implementation time and relevant its solution may not propose concrete scheme.

Summary of the invention

The technical matters of the present invention when being based on specific implementation the said goods proposes, its objective is provide a kind of can solve above-mentioned variety of issue, particularly optics can be kept and be combined into the position relation that makes each other keep regulation relation optical module and have the camera head of this optical module.

Optical module of the present invention comprises: as the 1st optics of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; As the 2nd optics of prism, its constitute be mapped to regulation from described the 1st optics side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; The location holding member, described the 1st optics and the 2nd optics are held in the relation that the relative position that makes both is kept regulation, it is characterized in that, described the 1st optics is at the peripheral position of the effective coverage that the efficient beam of a described outgoing plane side passes through, be provided with and one that is formed at a described location holding member relative obverse chimeric corresponding chimeric shape portion that uses of shape portion that uses with this outgoing plane, described the 2nd optics is at the peripheral position of the effective coverage that the efficient beam of a described plane of incidence side passes through, be provided with and other obverse other chimeric corresponding chimeric shape portions that use of shape portion that use that are formed at the described location holding member relative with this plane of incidence, described location holding member forms the optically-variable diaphragm that allows the light transmission between a described corresponding surface and other corresponding surfaces at the regulation position.

Camera head of the present invention comprises: as the 1st optics of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; As the 2nd optics of prism, its constitute be mapped to regulation from described the 1st optics side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; The location holding member, described the 1st optics and the 2nd optics are held in the relation that the relative position that makes both is kept regulation, described the 1st optics is at the peripheral position of the effective coverage that the efficient beam of a described outgoing plane side passes through, be provided with and one that is formed at a described location holding member relative obverse chimeric corresponding chimeric shape portion that uses of shape portion that uses with this outgoing plane, described the 2nd optics is at the peripheral position of the effective coverage that the efficient beam of a described plane of incidence side passes through, be provided with and other other obverse chimeric corresponding chimeric shape portions that use of shape portion that use that are formed at the described location holding member relative with this plane of incidence, described location holding member has: optical module forms the optically-variable diaphragm that allows the light transmission between a described corresponding surface and other corresponding surfaces at the regulation position; Imaging apparatus carries out the relevant opto-electronic conversion of light image that forms with the light beam that penetrates by the outgoing plane from the described assigned position of described optical module; Image data creating unit according to the output signal of described imaging apparatus, generates the view data of the communication of suitable record of stipulating and/or regulation.

Other camera heads of the present invention comprise: as the 1st optics of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; As the 2nd optics of prism, its constitute be mapped to regulation from described the 1st optics side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; The location holding member, described the 1st optics and the 2nd optics are held in the relation that the relative position that makes both is kept regulation, described the 1st optics is at the peripheral position of the effective coverage that the efficient beam of a described outgoing plane side passes through, be provided with and one that is formed at a described location holding member relative obverse chimeric corresponding chimeric shape portion that uses of shape portion that uses with this outgoing plane, described the 2nd optics is at the peripheral position of the effective coverage that the efficient beam of a described plane of incidence side passes through, be provided with and other other obverse chimeric corresponding chimeric shape portions that use of shape portion that use that are formed at the described location holding member relative with this plane of incidence, described location holding member has: optical module forms the optically-variable diaphragm that allows the light transmission between a described corresponding surface and other corresponding surfaces at the regulation position; Light image forms use optical system, and the light beam knot that penetrates according to an outgoing plane from the regulation of the 2nd optics of described optical module look like the light image into suitable observation.

In the present invention, optical module will see through relative configuration of location holding member with diaphragm across having light beam as the 1st optics of prism and the 2nd optics, and the chimeric of peripheral position setting of the effective coverage of passing through by the efficient beam at each other opposite face forms as one them with shape portion on the whole.Therefore, can provide according to the present invention and can and be bonded into the camera head that the position that makes each other concerns the optical module of the relation of stably keeping regulation and has this optical module a plurality of opticses maintenances.

Description of drawings

Fig. 1 is the summary construction diagram of overview of the camera head of the expression optical module of having used first embodiment of the present invention.

Fig. 2 is the structural drawing of optical system of the optical module of expression first embodiment of the present invention.

Fig. 3 is the stereographic map that expression utilizes the location holding member that the 1st optics and the 2nd optics of the optical module of first embodiment of the present invention is held in the one state.

Fig. 4 is the side view that expression utilizes the location holding member that the 1st optics and the 2nd optics of the optical module of first embodiment of the present invention is held in the one state.

Fig. 5 is the exploded perspective view of the state that is separated of expression the 1st optics of first embodiment of the present invention and the 2nd optics and location holding member.

Fig. 6 (a) is the stereographic map of structure of the beam incident surface of the light beam outgoing plane of the 1st optics of expression first embodiment of the present invention and the 2nd optics (b).

Fig. 7 (a) is the vertical view of two sides, surperficial back side shape of the location holding member of expression first embodiment of the present invention (b).

Fig. 8 (a) is the stereographic map of structure of the beam incident surface of the light beam outgoing plane of the 1st optics of expression second embodiment of the present invention and the 2nd optics (b).

Fig. 9 (a) is the vertical view of two sides, surperficial back side shape of the location holding member of expression second embodiment of the present invention (b).

Figure 10 (a) is the light beam outgoing plane and an obverse structural drawing of locating holding member of the 1st optics of expression the 3rd embodiment of the present invention (b), (a) expression is the 1st optics and the location exploded perspective view that separates of holding member, (b) represents the amplification profile of major part.

Figure 11 (a) is the summary construction diagram of the application example of device on digital camera of expression the 4th embodiment of the present invention (b), (a) being the example of representing optical module is applied to the camera system of digital camera, (b) is the exemplary plot that expression is applied to optical module the view finder system of digital camera.

Figure 12 (a) is the summary pie graph of the application example of device on PC of expression the 5th embodiment of the present invention (b), (a) is the side view of expression laptop, (b) is the summary section of the schematic configuration of expression major part.

Figure 13 (a) (b) (c) is the summary construction diagram of the application example of device on mobile phone of expression the 6th embodiment of the present invention, (a) is front view, (b) is side view, (c) is the summary section of the schematic configuration of expression major part.

Embodiment

(first embodiment)

Fig. 1 is the summary construction diagram of overview of the camera head 100 of the expression optical module PA that used first embodiment of the present invention.Camera head 100 shown in Figure 1 has image pickup optical system 110, imaging apparatus 120 and image data creating unit 130.

Image pickup optical system 110 is as its main body, by keeping the relation of regulation, constitute by having the optical module PA that light beam sees through with location holding member 30 maintenances in hole be held in the relative position that makes both as the 1st optics 10 of prism and the 2nd optics 20.In addition, the 111, the 112nd, cloche.Wherein at least one can be being that the IR with infrared ray block function shears filter.And location holding member 30 has the function portion as aperture.To narrate in the back about optical module PA.

120 pairs of light images that form by the light beam that penetrates from described optical module PA of imaging apparatus carry out opto-electronic conversion.

130 pairs of image data creating unit are handled by the signal that imaging apparatus 120 carries out after the opto-electronic conversion, have the processing unit 131 of the compression/de-compression of for example in time carrying out view data etc. as required; The record cell 132 of Imagery Data Recording in recording medium (can use storage card) after handling by this processing unit 131; The view data that is recorded in this record cell 132 is in time regenerated, and can be from the regeneration unit 133 of lead-out terminal 134 output etc.In addition, processing unit 131 can communicate with external mechanical etc. by terminal 135.

Fig. 2 is the figure of structure of the optical system of expression optical module PA.As shown in Figure 2, the 1st optics 10 of optical module PA is made of prism, this prism constitutes and makes the incident light of a plane of incidence 11 that is mapped to regulation from object side by cloche 111 in backside reflection face 12 reflection of the regulation with focal power, and penetrates from an outgoing plane 13 of regulation.And the 2nd optics 20 of optical module PA is made of prism, this prism constitutes and makes the incident light of a plane of incidence 21 that is mapped to regulation from described the 1st optics 10 sides in backside reflection face 22-1, the 22-2 of the regulation with focal power reflection, and penetrates from an outgoing plane 23 of regulation.

The optical system of optical module PA has at least, and two sides above (comprising the two sides) is the reflecting surface of free form surface shape.It is asymmetric for rotation that this free form surface refers to incide relatively the optical axis of the optical axis of light beam of this face or the light beam that penetrates from this face, and only have the curved surface of a plane of symmetry along these optical axises.

In Fig. 2, the light-sensitive surface of symbol 121 expression imaging apparatuss 120.As shown in Figure 1, location holding member 30 is set between the 1st optics 10 and the 2nd optics 20, be provided as the function portion 301 of optically-variable diaphragm at location holding member 30.

Fig. 3 is that expression utilizes location holding member 30 the 1st optics 10 of optical module PA and the 2nd optics 20 to be held in the stereographic map of one state.Fig. 4 is the same side view that utilizes location holding member 30 the 1st optics 10 of optical module PA and the 2nd optics 20 to be held in the one state of expression.Fig. 5 is the exploded perspective view of the state that is separated of expression the 1st optics 10 and the 2nd optics 20 and location holding member 30.Fig. 6 (a) is the stereographic map of structure of the beam incident surface of expression light beam outgoing plane of the 1st optics 10 and the 2nd optics 20 (b).

Fig. 7 (a) is the vertical view of two sides, the surperficial back side shape of expression location holding member 30 (b).

As Fig. 3～Fig. 7 (a) (b) shown in, the 1st optics 10 is at the peripheral position of the effective coverage 14 that the efficient beam of outgoing plane 13 sides passes through, have by short cylindrical shape convex shaped part constitute chimeric with the shape 15a of portion, 15b.This is chimeric with chimeric with the shape 35a of portion, 35b corresponding to a corresponding surface 31 that is formed at the location holding member 30 relative with the outgoing plane 13 of the 1st optics 10 of the 15a of shape portion, 15b.The 2nd optics 20 is at the peripheral position of the effective coverage 24 that the efficient beam of the plane of incidence 21 sides passes through, have equally by short cylindrical shape convex shaped part constitute chimeric with the shape 26a of portion, 26b.This is chimeric chimeric with the shape 36a of portion, 36b corresponding to other of other corresponding surfaces 32 that are formed at the described location holding member 30 relative with the plane of incidence 21 of the 2nd optics 20 with the 26a of shape portion, 26b.

Described location holding member 30 has the permission light beam through the optically-variable aperture 33 between a described corresponding surface 31 and other corresponding surfaces 32 at its substantial middle position.This hole 33 is equivalent to the function portion 301 as the optically-variable diaphragm described in Fig. 2.And, location holding member 30 has the chimeric shape 35a of portion, a 35b of using who is made of concavity portion (being the circular hole that the end is arranged in the present embodiment) at a described corresponding surface 31, has other the chimeric shape 36a of portion, 36b of using that are made of concavity portion (in the present embodiment for the circular hole at the end is arranged) equally at other corresponding surfaces 32.

By chimeric with the shape 15a of portion, 15b and chimeric chimeric, chimeric with the shape 35a of portion, 35b with the shape 26a of portion, 26b and chimeric chimeric with the shape 36a of portion, 36b, the 1st optics 10 and the 2nd optics 20 are clipped in the middle location holding member 30 and are bonded into one, and have the position relation of regulation.

As Fig. 6 (a) (b) shown in, in the 1st optics 10, leave predetermined distance and do not belong to the regulation position of described outgoing plane 13 sides of described effective coverage 14 with the 15a of shape portion, 15b, be formed for adjusting the 1st 17a of stance adjustment portion, 17b, the 17c relative posture, that constitute by hemispherical jut of the described relatively location of the 1st optics 10 holding member 30 from chimeric.These the 1st stance adjustment 17a of portion, 17b, 17c adjust the opposite face pitch angle of outgoing plane 13 with a corresponding surface 31 of location holding member 30 of the 1st optics 10 by adjusting its height in advance, carry out stance adjustment.

In the 2nd optics 20, leave predetermined distance and do not belong to the regulation position of the described plane of incidence 21 sides of described effective coverage 24 with the 26a of shape portion, 26b, be formed for adjusting the 2nd 27a of stance adjustment portion, 27b, the 27c relative posture, that constitute by hemispherical jut of the described relatively location of the 2nd optics 20 holding member 30 from chimeric.These the 2nd stance adjustment 27a of portion, 27b, 27c adjust the opposite face pitch angle of the plane of incidence 21 with other corresponding surfaces 32 of location holding member 30 of the 2nd optics 20 by adjusting its height in advance, carry out stance adjustment.

As Fig. 7 (a) (b) shown in, at the regulation position of a corresponding surface 31 of location holding member 30, be provided with and the 1st 17a of stance adjustment portion that is formed at the 1st optics 10, the

1st contact site

31a, 31b, 31c that 17b, 17c contact.

And, at the regulation position of other corresponding surfaces 32 of location holding member 30, be provided with and the 2nd 27a of stance adjustment portion that is formed at the 2nd optics 20 sides, the

2nd contact site

32a, 32b, 32c that 27b, 27c contact.

(second embodiment)

Fig. 8 (a) is the stereographic map of structure of the beam incident surface 21 of the light beam outgoing plane 13 of the 1st optics 10 of expression second embodiment of the present invention and the 2nd optics 20 (b).Fig. 9 (a) is the vertical view of two sides, surperficial back side shape of the location holding member 30 of this embodiment of expression (b).The difference of this embodiment and first embodiment is that the 1st stance adjustment portion and the 2nd stance adjustment portion are located at location holding member 30 sides.

As Fig. 9 (a) (b) shown in, form the 1st location holding member side stance adjustment 37a of portion, 37b, the 37c that constitutes by hemispherical jut at the corresponding surface 31 of location holding member 30.Other corresponding surfaces 32 at location holding member 30 form the 2nd location holding member side stance adjustment 38a of portion, 38b, the 38c that is made of hemispherical jut.

As Fig. 8 (a) (b) shown in, at the outgoing plane 13 of the 1st optics 10 described the 1st location holding member side stance adjustment 37a of portion of contact, the 1st optics side contacts 10a of portion of 37b, 37c, 10b, 10c are set.The plane of incidence 21 at the 2nd optics 20 is provided with described the 2nd location holding member side stance adjustment 38a of portion of contact, the 2nd optics side contacts 20a of portion of 38b, 38c, 20b, 20c.

(the 3rd embodiment)

Figure 10 (a) is the light beam outgoing plane of the 1st optics 10 of expression the 3rd embodiment of the present invention and the structural drawing of a corresponding surface 31 of location holding member 30 (b), (a) expression is the 1st optics 10 and the location exploded perspective view that separates of holding member 30, (b) represents the amplification profile of major part.The difference of this embodiment and first embodiment is, make at least one side's of the 1st optics 10 and the 2nd optics 20 the chimeric of optics form cone-shaped jut, utilize this cone-shaped jut double as location chimeric with function portion and stance adjustment these two function portions of function portion with shape portion.As a result, can obtain the special-effect of simplified structure.

As Figure 10 (a) (b) shown in, form the cone-shaped jut 19a, 19b, 19c of the shape part of a part that comprises approximate cone and even cone as the chimeric shape portion that uses at the outgoing plane 13 of the 1st optics 10.The corresponding surface 31 of location holding member 30 form can with described cone-shaped jut 19a, 19b, 19c chimeric and have in shape along cone-shaped recess 39a, 39b, the 39c of the face of its outer peripheral face.In the present embodiment, locate the chimeric double as stance adjustment portion of shape portion that uses, so correspondingly can simplified structure.

(the 4th embodiment)

Figure 11 (a) is the summary construction diagram of the digital camera of expression the 4th embodiment of the present invention (optical module PA of the present invention being applied to the application example of digital camera) (b), (a) being the example of representing optical module PA is applied to the camera system of digital camera, (b) is the exemplary plot that expression is applied to optical module PA the view finder system of digital camera.

Digital camera 200 shown in Figure 11 (a) is identical with camera head 100 shown in Figure 1, has image pickup optical system 210, imaging apparatus 220 and the image data creating unit 230 etc. that comprise optical module PA.In addition, be provided with the image-display units 236 that constitutes by LCD etc. that is associated with image data creating unit 230, be used to monitor image observation optical system 250 that is presented at this image-display units 236 etc.

Digital camera 300 shown in Figure 11 (b) has the light image that comprises optical module PA and forms with optical system 350.This light image forms with optical system 350 and is used for looking like into the light image that is fit to image viewing according to the light beam knot that penetrates from optical module PA.This light image forms with optical system 350 and comprises focusing lens 351, Borrow's prism 352, view window 353 etc.In addition, 310 expression image pickup optical systems, 320 expression imaging apparatuss, 330 presentation video data generating unit.

Under Figure 11 (a) any situation (b), comprise that the optical system of optical module PA constitutes the enclosure interior that is fit to be installed in digital camera 200.

(the 5th embodiment)

Figure 12 (a) is the summary construction diagram of the PC of expression the 5th embodiment of the present invention (optical module PA of the present invention being applied to the application example of PC) (b), (a) being the side view of expression laptop, (b) is the summary section of the summary formation of expression major part.

As Figure 12 (a) (b) shown in, comprise that image pickup optical system 410, imaging apparatus 420 and the image data creating unit 430 etc. of optical module PA constitute the enclosure interior that is fit to be installed in PC 400.

And also can be applied to portable good personal computer to optical module is PDA (Personal Digital Assistance), laptop computer (Handheld PC), palm PC (Pocket PC) etc.

(the 6th embodiment)

Figure 13 (a) (b) (c) is the summary pie graph of the mobile phone that relates to of expression the 6th embodiment of the present invention (optical module PA of the present invention being applied to the application example of mobile phone), (a) be front view, (b) being side view, (c) is the summary section of the summary formation of expression major part.

(b) shown in (c), comprise that image pickup optical system 510, imaging apparatus 520 and the image data creating unit 530 etc. of optical module PA constitute the enclosure interior that is fit to be installed in mobile phone 500 as Figure 13 (a).In addition, 501 expression sound input microphones, 502 expression loudspeakers, 503 expression input action buttons, 504 expression monitor display frames, 505 expression antennas.

(feature of embodiment)

(1) the optical module PA shown in the embodiment, comprise: as the 1st optics 10 of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence 11 in backside reflection face 12 reflection of regulation with focal power, penetrate from the outgoing plane 13 of regulation; As the 2nd optics 20 of prism, its constitute be mapped to regulation from described the 1st optics 10 sides the incident light of a plane of incidence 21 in backside reflection face 22-1, the 22-2 of regulation reflection with focal power, penetrate from the outgoing plane 23 of regulation; Location holding member 30 is held in the relation that the relative position that makes both is kept regulation to described the 1st optics 10 and the 2nd optics 20, it is characterized in that,

Described the 1st optics 10 is at the peripheral position of the effective coverage 14 that the efficient beam of described outgoing plane 13 sides passes through, one of being provided with a corresponding surface 31 that is formed at the described location holding member 30 relative with this outgoing plane 13 is chimeric with the shape 35a of portion, the 35b corresponding chimeric usefulness shape 15a of portion, 15b

Described the 2nd optics 20 is at the peripheral position of the effective coverage 24 that the efficient beam of the described plane of incidence 21 sides passes through, be provided with chimeric with the shape 36a of portion, 36b corresponding chimeric usefulness shape 26a of portion, 26b with other of other corresponding surfaces 32 that are formed at the described location holding member 30 relative with this plane of incidence 21

Described location holding member 30 forms the optically-variable aperture 33 that allows the light transmission between a described corresponding surface 31 and other corresponding surfaces 32 at the regulation position.

(2) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, the described chimeric of described the 1st optics 10 forms convex shaped part (short cylindrical portion) with the 15a of shape portion, 15b.

(3) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, the described chimeric of described the 2nd optics 20 forms convex shaped part (short cylindrical portion) with the 26a of shape portion, 26b.

(4) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 be formed at that of a described corresponding surface 31 is chimeric to form concavity portion (circular hole) with the 35a of shape portion, 35b.

(5) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 be formed at that other of described other corresponding surfaces 32 are chimeric to form concavity portion (circular hole) with the 36a of shape portion, 36b.

(6) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, the described chimeric of described the 1st optics 10 forms concavity portion with shape portion.

(7) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, the described chimeric of described the 2nd optics 20 forms concavity portion with shape portion.

(8) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 be formed at that of a described corresponding surface 31 is chimeric to form convex shaped part with shape portion.

(9) optical module shown in the embodiment is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 be formed at that other of described other corresponding surfaces 32 are chimeric to form convex shaped part with shape portion.

(10) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, described the 1st optics 10 is leaving predetermined distance and is not belonging to the regulation position of described outgoing plane 13 sides of described effective coverage 14 with the 15a of shape portion, 15b from chimeric, is formed for adjusting the 1st 17a of stance adjustment portion, 17b, the 17c of the relative posture of the described relatively location of the 1st optics 10 holding member 30.

(11) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, described the 2nd optics 20 is leaving predetermined distance and is not belonging to the regulation position of the described plane of incidence 21 sides of described effective coverage 24 with the 26a of shape portion, 26b from chimeric, is formed for adjusting the 2nd 27a of stance adjustment portion, 27b, the 27c of the relative posture of the described relatively location of the 2nd optics 20 holding member 30.

(12) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 is provided with the

1st contact site

31a, 31b, 31c at the regulation position of this corresponding surface 31, and what its contact was formed at described the 1st optics 10 sides is used to adjust relatively the 1st 17a of stance adjustment portion, 17b, the 17c of the relative posture of this location holding member 30.

(13) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, described location holding member 30 is provided with the

2nd contact site

32a, 32b, 32c at the regulation position of these other corresponding surfaces 32, and what its contact was formed at described the 2nd optics 20 sides is used to adjust relatively the 2nd 27a of stance adjustment portion, 27b, the 27c of the relative posture of this location holding member 30.

(14) optical module shown in the embodiment is characterized in that, in above-mentioned (10) described optical module, the 1st 17a of stance adjustment portion of described the

1st optics

10,17b, 17c form hemispherical jut.

(15) optical module shown in the embodiment is characterized in that, in above-mentioned (11) described optical module, the 2nd 27a of stance adjustment portion of described the

2nd optics

20,27b, 27c form hemispherical jut.

(16) optical module shown in the embodiment is characterized in that, in above-mentioned (12) described optical module, the 1st contact site 37a of described location holding member 30,37b, 37c form hemispherical jut.

(17) optical module shown in the embodiment is characterized in that, in above-mentioned (13) described optical module, the 2nd contact site 38a of described location holding member 30,38b, 38c form hemispherical jut.

(18) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, be provided with the 1st optics side contacts 10a of portion, 10b, 10c at described the 1st optics 10, what its contact was formed at described location holding member 30 sides is used to adjust relatively the 1st location holding member side stance adjustment 37a of portion, 37b, the 37c of the posture of the 1st optics 10.

(19) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, be provided with the 2nd optics side contacts 20a of portion, 20b, 20c at described the 2nd optics 20, what its contact was formed at described location holding member 30 sides is used to adjust relatively the 2nd location holding member side stance adjustment 38a of portion, 38b, the 38c of the relative posture of the 2nd optics 20.

(20) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, described chimeric cone-shaped jut 19a, 19b, the 19c that comprises with the akin shape part of the part of cone and even cone that form with shape portion of at least one side's of described the 1st optics 10 and the 2nd optics 20 optics

The described chimeric of described location holding member 30 can be chimeric with this cone-shaped jut 19a, 19b, the 19c of at least one side's who is formed at described the 1st optics 10 and the 2nd optics 20 optics side with shape portion, and form cone-shaped recess 39a, 39b, the 39c that has in shape along the face of its outer peripheral face.

(21) optical module shown in the embodiment, it is characterized in that, in above-mentioned (1) described optical module, at least one side's of described the 1st optics 10 and the 2nd optics 20 the described chimeric of optics forms with shape portion, have in shape along the cone-shaped recess of the face of the outer peripheral face of the cone-shaped jut of the akin shape of a part that comprises regulation part with cone and even cone

The described chimeric of described location holding member 30 can be chimeric with this cone-shaped recess of at least one side's who is formed at described the 1st optics 10 and the 2nd optics 20 optics side with shape portion, and form and comprise the akin cone-shaped jut of the shape part with part cone and even cone regulation.

(22) camera head shown in the embodiment 100,200, it is characterized in that,

Comprise: as the 1st optics 10 of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence 11 in backside reflection face 12 reflection of regulation with focal power, penetrate from the outgoing plane 13 of regulation; As the 2nd optics 20 of prism, its constitute be mapped to regulation from described the 1st optics 10 sides the incident light of a plane of incidence 21 in backside reflection face 22-1, the 22-2 of regulation reflection with focal power, penetrate from the outgoing plane 23 of regulation; Location holding member 30 is held in the relation that the relative position that makes both is kept regulation to described the 1st optics 10 and the 2nd optics 20, it is characterized in that,

Described the 1st optics 10 is at the peripheral position of the effective coverage 14 that the efficient beam of described outgoing plane 13 sides passes through, a chimeric usefulness shape 35a of portion with a corresponding surface 31 that is formed at the described location holding member 30 relative with this outgoing plane 13 is set, the chimeric shape 15a of portion that uses of 35b correspondence, 15b, described the 2nd optics 20 is at the peripheral position of the effective coverage 24 that the efficient beam of the described plane of incidence 21 sides passes through, other chimeric usefulness shape 36a of portion with other corresponding surfaces 32 that are formed at the described location holding member 30 relative with this plane of incidence 21 are set, the chimeric shape 26a of portion that uses of 36b correspondence, 26b

Described location holding member 30 has: optical module PA forms the optically-variable aperture 33 that allows the light transmission between a described corresponding surface 31 and other corresponding surfaces 32 at the regulation position;

Imaging apparatus 120,220 carries out the relevant opto-electronic conversion of light image that forms with the light beam that penetrates by the outgoing plane 23 from the described assigned position of described optical module PA;

Image data creating unit 130,230 according to the output signal of described imaging apparatus 120,220, generates the view data of the communication of suitable record of stipulating or regulation.

(23) camera head shown in the embodiment 300 is characterized in that,

Light image forms with optical system 350, and the light beam knot that penetrates according to the outgoing plane 23 from the regulation of the 2nd optics 20 of described optical module PA look like into the light image that is fit to observation.

(24) camera head shown in the embodiment is characterized in that, in above-mentioned 22 described camera heads, described optical module PA, imaging apparatus 210, and image data creating unit 230 constitute the enclosure interior that is fit to be installed in digital camera 200.

(25) camera head shown in the embodiment is characterized in that, in above-mentioned 22 described camera heads, described optical module PA, imaging apparatus 210, and image data creating unit 230 constitute the enclosure interior that is fit to be installed in PC 400.

(26) camera head shown in the embodiment is characterized in that, in above-mentioned 22 described camera heads, described optical module PA, imaging apparatus 210, and image data creating unit 230 constitute the enclosure interior that is fit to be installed in mobile phone 500.

(variation)

Optical module shown in the above-mentioned embodiment and camera head comprise following variation.

(1) at least one side's of described the 1st optics 10 and the 2nd optics 20 the chimeric of optics forms concavity portion with shape portion.

(2) be formed at a corresponding surface 31 of location holding member 30 and the chimeric of at least one side surface of other corresponding surfaces 32 and form convex shaped part with shape portion.

(3) at least one side's of described the 1st optics 10 and the 2nd optics 20 the chimeric of optics forms cone-shaped recess with shape portion.

(4) be formed at a corresponding surface 31 of location holding member 30 and the chimeric of at least one side surface of other corresponding surfaces 32 and form cone-shaped jut with shape portion.

The application of the invention can extremely stably provide optical module that requires miniaturization, slimming and the camera head that uses this optical module.

Claims

1. optical module, comprising: as the 1st optics of prism, it constitutes, and the incident light of a plane of incidence that is mapped to regulation from object side is in the backside reflection face reflection of the regulation with focal power, penetrates from an outgoing plane of regulation; As the 2nd optics of prism, its constitute be mapped to regulation from described the 1st optics side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; The location holding member is held in the relation that the relative position that makes both is kept regulation to described the 1st optics and the 2nd optics, it is characterized in that,

Described the 1st optics is at the peripheral position of the effective coverage that the efficient beam of a described outgoing plane side passes through, be provided with and one that is formed at a described location holding member relative obverse chimeric corresponding chimeric shape portion that uses of shape portion that uses with this outgoing plane

Described the 2nd optics is at the peripheral position of the effective coverage that the efficient beam of a described plane of incidence side passes through, be provided with and other obverse other chimeric corresponding chimeric shape portions that use of shape portion that use that are formed at the described location holding member relative with this plane of incidence

Described location holding member forms the optically-variable diaphragm that allows the light transmission between a described corresponding surface and other corresponding surfaces at the regulation position.

2. optical module according to claim 1 is characterized in that, the described chimeric of described the 1st optics forms convex shaped part with shape portion.

3. optical module according to claim 1 is characterized in that, the described chimeric of described the 2nd optics forms convex shaped part with shape portion.

4. optical module according to claim 1 is characterized in that, being formed at described obverse and chimericly forming concavity portion with shape portion of described location holding member.

5. optical module according to claim 1 is characterized in that, described other obverse other that are formed at of described location holding member chimericly form concavity portion with shape portion.

6. optical module according to claim 1 is characterized in that, the described chimeric of described the 1st optics forms concavity portion with shape portion.

7. optical module according to claim 1 is characterized in that, the described chimeric of described the 2nd optics forms concavity portion with shape portion.

8. optical module according to claim 1 is characterized in that, being formed at described obverse and chimericly forming convex shaped part with shape portion of described location holding member.

9. optical module according to claim 1 is characterized in that, described other obverse other that are formed at of described location holding member chimericly form convex shaped part with shape portion.

10. optical module according to claim 1, it is characterized in that, described the 1st optics is leaving predetermined distance and is not belonging on the regulation position of a described outgoing plane side of described effective coverage from chimeric with shape portion, be formed for adjusting the 1st stance adjustment portion of the relative posture of the described relatively location of described the 1st optics holding member.

11. optical module according to claim 1, it is characterized in that, described the 2nd optics is leaving predetermined distance and is not belonging on the regulation position of a described plane of incidence side of this effective coverage from chimeric with shape portion, be formed for adjusting the 2nd stance adjustment portion of the relative posture of the described relatively location of described the 2nd optics holding member.

12. optical module according to claim 1, it is characterized in that, described location holding member is provided with the 1st contact site at this obverse regulation position, and what its contact was formed at described the 1st optics side is used to adjust relatively the 1st stance adjustment portion of the relative posture of this location holding member.

13. optical module according to claim 1, it is characterized in that, described location holding member is provided with the 2nd contact site at these other obverse regulation position, and what its contact was formed at described the 2nd optics side is used to adjust relatively the 2nd stance adjustment portion of the relative posture of this location holding member.

14. optical module according to claim 10 is characterized in that, the 1st stance adjustment portion of described the 1st optics forms hemispherical jut.

15. optical module according to claim 11 is characterized in that, the 2nd stance adjustment portion of described the 2nd optics forms hemispherical jut.

16. optical module according to claim 12 is characterized in that, the 1st contact site of described location holding member forms hemispherical jut.

17. optical module according to claim 13 is characterized in that, the 2nd contact site of described location holding member forms hemispherical jut.

18. optical module according to claim 1, it is characterized in that, described the 1st optics is provided with the 1st optics side contacts portion, and what its contact was formed at described location holding member side is used to adjust relatively the 1st location holding member side stance adjustment portion of the relative posture of the 1st optics.

19. optical module according to claim 1, it is characterized in that, described the 2nd optics is provided with the 2nd optics side contacts portion, and what its contact was formed at described location holding member side is used to adjust relatively the 2nd location holding member side stance adjustment portion of the relative posture of the 2nd optics.

20. optical module according to claim 1, it is characterized in that, the described chimeric cone-shaped jut that comprises with the akin shape part of the part of cone and even cone that forms with shape portion of at least one side's of described the 1st optics and the 2nd optics optics

The described chimeric of described location holding member can be chimeric with this cone-shaped jut of at least one side's who is formed at described the 1st optics and the 2nd optics optics side with shape portion, and form it and have in shape along the cone-shaped recess of the face of its outer peripheral face.

21. optical module according to claim 1, it is characterized in that, the described chimeric of at least one side's of described the 1st optics and the 2nd optics optics forms with shape portion, it has in shape along the cone-shaped recess of the face of the outer peripheral face of the cone-shaped jut of the akin shape part of the part with cone and even cone that comprises regulation

The described chimeric of described location holding member can be chimeric with this cone-shaped recess of at least one side's who is formed at described the 1st optics and the 2nd optics optics side with shape portion, and form the cone-shaped jut of the akin shape part of the part with cone and even cone that comprises regulation.

22. a camera head is characterized in that,

Comprise: as the 1st optics of prism, its constitute be mapped to regulation from object side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; As the 2nd optics of prism, its constitute be mapped to regulation from described the 1st optics side the incident light of a plane of incidence in the reflection of the backside reflection face of regulation with focal power, penetrate from an outgoing plane of regulation; The location holding member is held in the relation that the relative position that makes both is kept regulation to described the 1st optics and the 2nd optics,

Described location holding member has: optical module forms the optically-variable diaphragm that allows the light transmission between a described corresponding surface and other corresponding surfaces at the regulation position;

Imaging apparatus carries out the relevant opto-electronic conversion of light image that forms with the light beam that penetrates by the outgoing plane from the described assigned position of described optical module;

Image data creating unit according to the output signal of described imaging apparatus, generates the view data of the communication of suitable record of stipulating or regulation.

23. a camera head is characterized in that,

Light image forms use optical system, and the light beam knot that penetrates according to an outgoing plane from the regulation of the 2nd optics of described optical module look like the light image into suitable observation.

24. camera head according to claim 22 is characterized in that, described optical module, imaging apparatus and image data creating unit constitute the enclosure interior that is fit to be installed in digital camera.

25. camera head according to claim 22 is characterized in that, described optical module, imaging apparatus and image data creating unit constitute the enclosure interior that is fit to be installed in PC.

26. camera head according to claim 22 is characterized in that, described optical module, imaging apparatus and image data creating unit constitute the enclosure interior that is fit to be installed in mobile phone.