CN102590976A - Lens, imaging device, digital camera, information terminal and image input device using the same - Google Patents

Abstract

The present invention relates to a lens, an imaging device, a digital camera, an information terminal and an image input device using the same. The lens (10) comprises a lens holding frame (25) for a lens group (15) consisting of one or more lens, and a holding frame bracket (26) for holding the lens from the inner side thereof. An optical axis (0A) surrounding the lens group (15) and arranged on the bracket (26) is provided with at least three optical axis adjusting perforations (26b) extending along the optical axis (0A), wherein eccentric adjusting members (62,63,64) and an inclination adjusting member (61) are coaxially mounted.

Description

Camera lens and camera head, digital camera, information terminal, image-input device

Technical field

The present invention relates to keep the camera lens of lens set, relate in particular to the camera lens of being convenient to carry out the adjustment of lens combination axle core.The present invention also further relates to camera, digital camera, information terminal and the image-input device that uses this camera lens.

Background technology

In recent years, not only require miniaturization, but also require further to improve the photographs image quality for camera cameras such as numbers.The raising of photographs image quality need be carried out the adjustment of high-precision axle core to lens set in camera lens inside; Promptly carry out off-centre adjustment and tilt adjustments; So-called eccentric adjustment is meant that the adjustment lens set is perpendicular to the position on the camera axis direction of optical system; This position is positioned at according to position that Design for optical system determines, so-called tilt adjustments then is meant the inclination of adjustment lens set with respect to the camera axis of optical system, makes this inclination with consistent according to the inclination that Design for optical system determined.To this, in the prior art, has the camera lens of eyeglass axle core adjusting mechanism below disclosing like patent documentation 1 (TOHKEMY 2007-219405 communique).This camera lens keeps frame to keep the set of contact lenses group in the optical system that many set of contact lenses group constitutes with eyeglass, adjusts the axle core of this lens set through this eyeglass being kept the position adjustment of the camera axis of frame.

In above-mentioned camera lens; The 5th holding plate is fixed on and is positioned at imaging surface one side and is used to keep the 3rd of prismatic glasses group to keep the extension of frame; Be used to keep the five guarantees of the 5th lens set to hold frame and be maintained at the 5th holding plate, constitute the lens light axis adjusting mechanism across first adjustment component and second adjustment component.First adjustment component is set at five guarantees and holds frame three positions on every side; The position of this three places, first adjustment component can change on the direction perpendicular to camera axis respectively, holds the position between frame and the 5th holding plate in order to adjustment five guarantees on perpendicular to the camera axis direction.In addition; Hold in five guarantees and to be different from other three positions that first adjustment component is provided with the position around the frame second integeral part is set; The position of this three places second integeral part can change on the camera axis direction respectively, holds the angle of inclination of frame with respect to the 5th holding plate in order to adjust five guarantees.For this reason, above-mentioned camera lens can carry out the off-centre adjustment to the 5th lens set with article one integeral part, with second adjustment component the 5th lens set is carried out tilt adjustments.

But; When above-mentioned existing lens construction is adjusted lens set promptly five guarantees is held the position of frame on perpendicular to the direction of camera axis; Just when carrying out the off-centre adjustment; Need on perpendicular to the camera axis direction, three support points that can change the position be set at least, therefore need three first adjustment component at least.And when carrying out tilt adjustments, also need three second adjustment component at least, change in order to the relative position on the camera axis direction.For this reason; The lens light axis adjusting mechanism that should have camera lens now needs six first adjustment component and second adjustment component altogether, like this, in the maintenance structure of holding the frame formation with the 5th holding plate and five guarantees, needs to keep six the space is set; And this will reduce space utilization efficient; It not only is an impediment to miniaturization, causes complex structure, and keeps six and space itself is set has had many difficulties, therefore need further improve this structure.

Summary of the invention

In view of the above problems, the object of the present invention is to provide a kind of camera lens that can reduce to be provided with space and don't eccentric adjustment of influence implementation and tilt adjustments.

In order to achieve the above object, the present invention provides following camera lens and the camera head, digital camera, carrying type information terminal, the image-input device that utilize this camera lens.

(1) the present invention provides a kind of camera lens; It is characterized in that; Keep frame and support frame comprising eyeglass, this eyeglass keeps frame to be used to keep the lens set with the formation of the lens more than a slice, and this supports frame to keep frame with its inboard this eyeglass of supporting; This camera lens is characterised in that; The lens light axis that centers on said lens set on the said support frame is provided with three optical axises adjustment at least and bores a hole, and this optical axis adjustment perforation is extended on this lens light axis direction, and each above-mentioned optical axis is adjusted coaxial setting-up eccentricity adjustment component of difference and tilt adjustments parts in the perforation; This off-centre adjustment component is used on perpendicular to the lens light axis direction, changing the position that said support frame is supported the support point of said eyeglass maintenance frame, and these tilt adjustments parts are used on the lens light axis direction, changing said support frame and support said eyeglass to keep the position of the support point of frame.

(2) according to (1) described camera lens; Its characteristic also is; Have at least two eccentric adjustment component in said optical axis adjustment perforation, to rotate by the axially bored line around this optical axis adjustment perforation in the said eccentric adjustment component; And follow this rotation on this axially bored line, to advance and retreat, make the position of said support point change, simultaneously along said axially bored line direction; Have at least in this off-centre adjustment component an eccentric adjustment component in said optical axis adjustment perforation along shown in axially bored line, keep frame to apply to said eyeglass towards the acting force of this maintenances frame inboard.

(3) according to (1) described camera lens; Its characteristic also is; Said eccentric adjustment component can be rotated by the axially bored line around this optical axis adjustment perforation in said optical axis adjustment perforation, and follows this rotation on this axially bored line, to advance and retreat, and makes said support point change in the position of said axially bored line direction.

(4) according to any described camera lens in (1)～(3); Its characteristic is that also said tilt adjustments parts extend along the axially bored line direction of this optical axis adjustment perforation, wherein are provided with eccentric axial portion in said optical axis adjustment perforation; The axle core of this eccentric axial portion departs from this axially bored line; These tilt adjustments parts can rotate around this axially bored line in said optical axis adjustment perforation, simultaneously, on said lens light axis direction, make this eccentric axial portion contact said eyeglass and keep frame.

(5) according to (4) described camera lens, its characteristic also is, also is provided with the optical axis direction functional component on the said support frame, is used for keeping frame to apply towards the above each eccentric axial portion one side's of said lens light axis direction acting force to said eyeglass.

(6) according to any described camera lens in (1)～(5); Its characteristic also is; Each said eccentric adjustment component is cylindrical, inserts respectively and adjust perforation with said optical axis to combine, and each said tilt adjustments parts insert the hollow space of said eccentric adjustment component respectively.

(7) according to any described camera lens in (1)～(6), its characteristic also is, is first lens set with said lens set, and to keep frame with said eyeglass be that first eyeglass keeps frame, and then possesses: second lens set, and it constitutes with a slice lens at least; Second eyeglass keeps frame, is used to keep said second lens set; And lens barrel is used to keep said support frame and said second eyeglass to keep frame, and this support frame and second eyeglass keep frame to move therein.

(8) in addition, the present invention also provides a kind of camera head, it is characterized in that, uses any described camera lens in above-mentioned (1)～(7).

(9) and then, the present invention also provides a kind of digital camera, it is characterized in that, uses any described camera lens in above-mentioned (1)～(7).

(10) moreover, the present invention also provides a kind of carrying type information terminal, it is characterized in that, uses any described camera lens in above-mentioned (1)～(7).

(11) last, a kind of image-input device of the present invention is characterized in that, uses any described camera lens in above-mentioned (1)～(7).

Effect of the present invention is following.

At first; In camera lens of the present invention; Be used for eccentric adjustment component and tilt adjustments parts that eyeglass keeps frame to adjust with respect to the off-centre and the inclination of support frame are bored a hole with each optical axis adjustment on coaxial (axially bored line of optical axis adjustment perforation) the support frame of packing into, and can relatively rotate between the two.For this reason, though the space that is provided with of eccentric adjustment component and tilt adjustments parts reduces half, still kept the independence between eccentric adjustment and the tilt adjustments.

And; Eyeglass keeps frame in supporting frame, to receive the support of eccentric adjustment component and tilt adjustments parts all the time; And under this state, carry out eccentric adjustment and tilt adjustments, for this reason after the optical axis adjustment end of job, need not fix with cementing agent etc.; In order to keep adjusted state, help obtaining photographic optical system through the adjustment of high precision lens set optical axis.

In addition; Have at least two eccentric adjustment component in said optical axis adjustment perforation, to rotate by the axially bored line around this optical axis adjustment perforation in the said eccentric adjustment component in the said structure; And follow this rotation on this axially bored line, to advance and retreat; Make the position of said support point change along said axially bored line direction; Simultaneously, have at least in this off-centre adjustment component an eccentric adjustment component in said optical axis adjustment perforation along shown in axially bored line, keep frame to apply to said eyeglass towards the acting force of this maintenances frame inboard.Like this, need only rotate the eccentric adjustment component that can on the axially bored line direction, advance and retreat, make eyeglass keep the support point position of frame to change in the axially bored line direction, just can adjust eyeglass maintenance frame is the off-centre of lens set, helps simplifying eccentric adjustment operation.

And in supporting frame; On perpendicular to the camera axis direction; Eyeglass keeps frame to receive the optical axis direction functional component all the time to its effect that applies the support point of supporting towards eccentric adjustment component, and help on perpendicular to the direction of camera axis further adjustment rightly to support frame to support eyeglass to keep frame be the supporting location of lens set for this reason.

In addition; Each tilt adjustments parts in the said structure are followed in optical axis adjustment perforation around the rotation of the axially bored line of this optical axis adjustment perforation and can be advanced and retreat in this axially bored line direction; Change the position of said support point; Adjusting eyeglass maintenance frame through the rotating operation of each eccentric adjustment component like this is the inclination of lens set, simplifies the structure of lens set tilt adjustments.

In addition, the tilt adjustments parts in the optical axis of the said structure adjustment perforation are provided with eccentric axial portion, and this eccentric axial portion is extended in the axially bored line direction of this optical axis adjustment perforation; This axially bored line of its axis deviation, these tilt adjustments parts can rotate around axially bored line in optical axis adjustment perforation, thereby make eccentric axial portion on said lens light axis direction, keep frame to contact with said eyeglass; Though its structure is little and simple; But with respect to the rotating operation amount of tilt adjustments parts, the variable quantity of lens set on the camera axis direction is small, and can change continuously; Therefore, help further improving the tilt adjustments precision of lens set.

In addition; In said structure; Support that frame is provided with the optical axis direction functional component, be used on the lens light axis direction, keeping frame to apply, in order to support eyeglass to keep the supporting location of frame at the whole frame of supporting of the enterprising step of lens light axis direction towards eccentric axial portion one side's effect to eyeglass.

In addition, the eccentric adjustment component in the said structure is tubular, inserts respectively and adjust perforation with said optical axis to combine; And then; Each tilt adjustments parts insert the hollow space of said eccentric adjustment component respectively, like this, and in optical axis adjustment perforation; Eccentric adjustment component and tilt adjustments parts can carry out off-centre adjustment and tilt adjustments in each optical axis adjustment perforation, meanwhile realize coaxial (axially bored line) installation.For this reason, constitute little and simple structure.

In addition, said structure is first lens set with said lens set, and to keep frame with said eyeglass be that first eyeglass keeps frame, and then possesses: second lens set, and it constitutes with a slice lens at least; Second eyeglass keeps frame, is used to keep said second lens set; And lens barrel is used to keep said support frame and said second eyeglass to keep frame, and this support frame and second eyeglass keep frame to move therein.Like this, just can keep frame to install on first eyeglass that has kept carrying out first lens set of high precision optical axis adjustment through the adjustment maintaining body, obtain excellent shooting performance as image pickup optical system.

Description of drawings

Fig. 1 is that an example relates to the included various lens set of camera lens of the present invention 10, the longitdinal cross-section diagram that various eyeglass keeps the major part of frame and various camera lens 10.

Fig. 2 A and Fig. 2 B show that the 5th eyeglass keeps frame 25 to receive the stereographic map of supporting structure that the 5th eyeglass is supported the support of frame 26 through lens light axis adjusting mechanism 60; Wherein Fig. 2 A shows that the 5th eyeglass keeps frame 25 to receive the state that the 5th eyeglass is supported the support of frame 26 through lens light axis adjusting mechanism 60, and Fig. 2 B is presented at and is inserted into the 5th eyeglass and keeps frame 25 and the 5th eyeglass in the wave packing ring 65 to support to insert among each optical axis adjustment touch-control 26b of frame 26 installment state of the eccentric adjustment component of three tilt adjustments parts 61, two 62, eccentric adjustment fixed screw 63 and compression spring 64.

Fig. 3 is the exploded view with Fig. 2.

Fig. 4 is the synoptic diagram that shows tilt adjustments parts 61 and inclination combined hole 27 structures.

Fig. 5 is the synoptic diagram that shows tilt adjustments parts 61 structures.

Fig. 6 is the synoptic diagram of display eccentric adjustment screw 62 structures.

Fig. 7 is the synoptic diagram of display eccentric adjustment fixed screw 63 and compression spring 64 structures.

Fig. 8 is the sectional view of I-I line among Fig. 2.

Fig. 9 is the sectional view of II-II line among Fig. 2.

Figure 10 A and Figure 10 B are the stereographic maps of this camera 100 when being taken the photograph the outward appearance of body side's view camera 100.Wherein Figure 10 A display device epicranium is accommodated in the state of camera body when inner, Figure 10 B show camera lens from camera body the state when protruding.

Figure 11 is the i.e. stereographic map of this camera 100 during the outward appearance of view camera 100 from the camera back side from cameraman one side.

Figure 12 is the module map that shows camera 100 functional structures.

The explanation of mark:

10 camera lenses, 11 first lens set, 12 second lens set, 13 prismatic glasses groups, 14 the 4th lens set, 15 the 5th lens set; 21 straight tubes, 22 second eyeglasses keep frame, and 23 prismatic glasseses keep frame, and 24 the 4th eyeglasses keep frame, and 25 the 5th eyeglasses keep frame, and 26 the 5th eyeglasses are supported frame; 26b optical axis adjustment perforation, 31 stationary magazine creels, 32 first rotating cylinders, 33 second rotating cylinders, 34 straight liners, 61 tilt adjustments parts; The 61b eccentric axial portion, 62 eccentric adjustment screws, 62a is inner, 63 eccentric adjustment fixed screws, 63c internal control portion; 64 compression springs, 65 waveform packing rings, 100 cameras, OA camera axis, BA axially bored line.

Embodiment

Embodiment below with reference to description of drawings camera lens of the present invention.

At first explain that with reference to figure 1～Fig. 9 an example relates to the structure of camera lens 10 of the present invention.

As shown in Figure 1, comprise in the optical devices of camera lens 10 and possess with lower component: first set of contact lenses 11, second set of contact lenses 12, the 3rd set of contact lenses 13, the 4th set of contact lenses 14, the 5th set of contact lenses 15, shutter/aperture stop unit 16, solid-state imager 17, optical low-pass filter 18, straight tube 21, second lens set keep frame 22, prismatic glasses group to keep frame 23, the 4th lens set to keep frame 24, the 5th lens set to keep frame 25, the 5th eyeglass to support frame 26, stationary magazine creel 31, first rotating cylinder 32, second rotating cylinder 33, straight liner 34, focus on motor 51 and lens light axis adjusting mechanism 60.

These optical devices are in the photographic optical system; From taking the photograph body one side is that object space is arranged in order first lens set 11, second lens set 12, prismatic glasses group 13, the 4th lens set 14, the 5th lens set 15 are set; Simultaneously, between prismatic glasses group 13 and the 4th lens set 14, shutter/aperture stop unit 16 is set.In the imaging surface one side setting of the 5th lens set 15 with the solid-state imager 17 of CCD formations such as (electric charge couple element) and the optical low-pass filter 18 that covers the sensitive surface of this solid-state imager 17.The substrate that constitutes with the electronic circuit portion that electronic component is housed is installed in the not shown solid-state imager 17, and this substrate is fixed on the not shown matrix part.

First lens set 11 comprises the lens that a slice is above.The first not shown eyeglass keeps the frame one to keep these first lens set, 11, the first lens set 11 to keep frame to be fixed on the straight tube 21 through this first eyeglass.

Second lens set 12 comprises the lens that a slice is above.Second eyeglass keeps frame 22 fixing these second lens set 12 that keep.This second eyeglass keeps the outer surface of frame 22 rear ends to be provided with cam follower 22a; This cam follower 22a forms on its outer surface from center of rotation to the outstanding teat of radiation direction; This teat combines with straight mortise 34b in the straight liner 34, simultaneously the front end of this teat also with first rotating cylinder, 32 interior perimeter surface on protruding mortise 32b combine.

Prismatic glasses group 13 comprises the lens that a slice is above.Prismatic glasses keeps frame 23 fixing these prismatic glasses groups 13 that keep.This prismatic glasses maintenance frame 23 then receives the leading screw 51a that is fixed on the focusing motor 51 on second eyeglass maintenance frame 22 and goes up but the maintenance of not clear and definite illustrated screw mechanism or rack mechanism.This prismatic glasses keeps frame 23 to keep frame 22 one on the camera axis direction to move with second eyeglass, is focused on the driving of motor 51 simultaneously, keeps frame 22 on the camera axis direction, to move with respect to this second eyeglass.In the present embodiment, this prismatic glasses group 13 is to close burnt condenser lens, when the adjustment focus, focuses on motor 51 through rotating, and can make that the position on the camera axis direction obtains adjustment.

The 4th lens set 14 comprises the lens that a slice is above.The 4th eyeglass keeps frame 24 fixing the 4th lens set 14 that keep.The 4th eyeglass keeps frame 24 that shutter and aperture are carried out the one maintenance as shutter/aperture stop unit 16; Simultaneously; Cam follower 24a is set on the outer surface in its back-end; This cam follower 24a portion in its back-end forms radially teat, and this teat combines with straight mortise 34b in the straight liner 34, simultaneously the front end of this teat also with first rotating cylinder, 32 interior perimeter surface on protruding mortise 32c combine.

The 5th lens set 15 comprises the lens that a slice is above.The 5th eyeglass keeps frame 25 fixing the 5th lens set 15 that keep.The 5th eyeglass maintaining part 25 receives the support that the 5th eyeglass is supported frame 26 via lens light axis adjusting mechanism 60.The 5th eyeglass supports the outer surface of frame 26 rear ends to be provided with cam follower 26a; This cam follower 26a portion in its back-end forms radially teat; This teat combines with straight mortise 34b in the straight liner 34, simultaneously the front end of this teat also with first rotating cylinder, 32 interior perimeter surface on protruding mortise 32d combine.About lens light axis adjusting mechanism 60 with and surrounding structure will detail afterwards.

The shutter/aperture stop unit 16 that receives the 4th eyeglass to keep frame 24 one to keep comprises shutter and aperture.The image pickup optical system that constitutes from first lens set, 11 to the 5th lens set 15 is the zoom lens that can change focal length.Above-mentioned electronic circuit portion is set on the image space of this image pickup optical system solid-state imager promptly is set.The rotation-symmetric axle that this instructions promptly constitutes the optical axial of image pickup optical system the central shaft position of first lens set, 11 to the 5th lens set 15 is the camera axis OA of camera lens 10 as the lens light axis of image pickup optical system.

Stationary magazine creel 31 is cylindrical basically.Be fixed on the not shown matrix part.Form screw thread 31a on the interior perimeter surface of this stationary magazine creel 31.Second rotating cylinder 33 embeds the interior week of this stationary magazine creel 31.

Second rotating cylinder 33 is cylindrical basically, and the outer surface of end is provided with screw thread 33a thereafter, and the interior perimeter surface of rearward end is provided with drive pin 33b.Screw thread 31 in screw thread 33a and the stationary magazine creel 31 on the perimeter surface combines, and drive pin 33b is attached on the straight mortise of first rotating cylinder, 32 peripheries along radially giving prominence to from base end part.Like this; When first rotating cylinder 32 rotates with respect to stationary magazine creel 31; Second rotating cylinder 33 is just because of combining and first rotating cylinder, 32 unitary rotation between drive pin 33b and the not shown straight mortise; Simultaneously, on camera axis OA direction, move with respect to the stationary magazine creel 31 and first rotating cylinder 32 because of combining between screw thread 33a and the screw thread 31a.Straight tube 21 embeds the interior week of second rotating cylinder 33.

Straight 21 cylindrical basically.Directly the outer surface of tube 21 is provided with cam follower 21a, and interior perimeter surface is provided with not shown straight mortise, and this straight mortise extends on camera axis OA direction.Become from the outstanding teat of outer peripheral face along radial shape on perpendicular to the face of camera axis OA, this teat combines with protruding mortise 33c on second rotating cylinder, the 33 interior perimeter surface.First rotating cylinder 32 embeds the interior week of this straight tube 21, and straight liner 34 embeds the interior week of this first rotating cylinder 32.

Straight liner 34 is cylindrical basically, is fixed on the not shown matrix part.The leading section of the outer surface of this straight liner 34 is provided with the 34a of key portion, and periphery wall portion is provided with straight key mortise 34b.The 34a of this key portion is radially outstanding from outer surface, combines with not shown straight mortise on the perimeter surface in the straight tube 21.For this reason, straight liner 34 through the straight mortise on the 34a of key portion and the straight tube 21 combine limit of the rotation of straight tube 21 around camera axis OA, the while can relatively move on camera axis OA direction.Straight key mortise 34b radially runs through, and its length bearing of trend is consistent with camera axis OA direction.Second eyeglass keeps frame 22, the 4th eyeglass to keep frame 24 and the 5th eyeglass to support frame 26 to embed the interior week of this straight liner 34; As stated, second eyeglass cam follower 26a that keeps the cam follower 22a of frame 22, cam follower 24a that the 4th eyeglass keeps frame 24 and the 5th eyeglass to support frame 26 inserts and runs through straight key mortise 34b.Like this; The straight straight key mortise of liner 34 usefulness 34b includes cam follower 22a, 24a, 26a in; Limit second eyeglass and keep frame 22, the 4th eyeglass to keep frame 24 and the 5th eyeglass to support frame 26 to rotate, can on the direction of camera axis OA, move simultaneously around camera axis OA.First rotating cylinder 32 is embedded in the periphery of this straight liner 34.

First rotating cylinder 32 is cylindrical basically, its between the 34a of key portion and not shown matrix part that are sandwiched in straight liner 34 on the camera axis OA direction, can be when rotating around this camera axis OA with respect to camera axis OA with respect to the light path of photography stationkeeping.Base end part periphery at first rotating cylinder 32 is provided with gear part 32a.This gear part 32a and the gearing mesh that is fixed on the not shown drive unit on the not shown matrix part.For this reason, the driving force of this drive unit is sent to first rotating cylinder 32, this first rotating cylinder 32 is activated and rotates with respect to stationary magazine creel 31 and straight liner 34.On the interior perimeter surface of first rotating cylinder 32, be provided with protruding mortise 32b, 32c and 32d, as stated, protruding mortise 32b, 32c and 32d combine with cam follower 22a, 24a, 26a through straight key mortise 34b respectively.Like this, first rotating cylinder 32 is activated and rotates with respect to stationary magazine creel 31 and straight liner 34; Make second eyeglass keep the track advance and retreat of frame 22 along protruding mortise 32b; The 4th eyeglass keeps the track advance and retreat of frame 24 along protruding mortise 32c, and the 5th eyeglass keeps the track advance and retreat of frame 26 along protruding mortise 32d.

Camera lens 10 is used said structure; Suitably the driving force of not shown drive unit is sent to gear part 32a by means of gear; Drive first rotating cylinder 32 and rotate, make the lens set 11 of winning, second lens set 12, prismatic glasses group 13, the 4th lens set 14 and the 5th lens set 15 focus on action according to the rules.

Then explaining in the 5th eyeglass support frame 26 supports the 5th eyeglass to keep the structure of frame 25 by lens light axis adjustment structure 60.Fig. 2 shows that the 5th eyeglass keeps frame 25 to receive the stereographic map of supporting structure that the 5th eyeglass is supported the support of frame 26 through lens light axis adjusting mechanism 60, and Fig. 3 is with the stereographic map after the decomposition of the part of Fig. 2.In following explanation, radially be called radially with respect to camera axis OA with above-mentioned.

As stated, the 5th eyeglass keeps frame 25 to be used to keep the 5th lens set 15.As shown in Figures 2 and 3, the 5th eyeglass keeps frame 25 to be rondelle, is accommodated in the 5th eyeglass and supports frame 26 inside.The 5th eyeglass keeps the center of frame 25 to be provided with retaining hole 25a, is used for embedding therein and keeps the 5th lens set 15.The 5th eyeglass keep frame 25 periphery be provided with outside wall portions 25b; This outside wall portions 25b form with the camera axis OA of the 5th lens set 15 that will keep be the annular wall at center; From being that imaging surface one side is extended to the back-end, form the outer surface that the 5th eyeglass keeps frame 25 on every side.Outside wall portions 25b i.e. the 5th eyeglass keeps the external diameter size of frame 25 to have certain tolerance; When being used in the 5th eyeglass is supported frame 26, carrying out off-centre adjustment, change the 5th eyeglass maintenance frame 25 perpendicular to camera axis OA direction promptly with respect to the position radially (referring to Fig. 8 and Fig. 9) of camera axis.

This peripheral wall portion 25b is provided with three inclinations with combined hole 27.This inclination radially runs through peripheral wall portion 25b (referring to Fig. 8 and Fig. 9) with combined hole 27 at camera axis OA.When observing with the cross section of combined hole 27 axis perpendicular to tilting, as shown in Figure 4, each inclination is cylindrical basically with combined hole 27.Each tilts and to be provided with around camera axis OA with combined hole 27 in the present embodiment, all uniformly-spaced 120 spends each other.Each tilts with reaching with respect to this axis radially a pair of aperture enlarged portion 27a that is equipped with at the axis direction that tilts perpendicular to this with combined hole 27 in the combined hole 27.

This a pair of aperture enlarged portion 27 along with respect to camera axis OA radially run through peripheral wall portion 25b, be used for inserting therein the 61c of bonding pad portion of following tilt adjustments parts 61.In addition, outside surface one side of peripheral wall portion 25b, be provided with around inclination and accept recess 27b, and be provided with around tilting to accept recess 27c (referring to Fig. 8 and Fig. 9) with the inboard of combined hole 27 inside surface one side of peripheral wall portion 25b with the circular outside of combined hole 27.For this reason, each tilts and to accept recess 27b with combined hole 27 through the outside and accept recess 27c with the inboard and form combination flank 27d, and this combination flank 27d is limited at the thickness of inclination with combined hole 27 axis directions.Limiting with the true form in the combined hole 27 with this combination flank 27d is internal diameter.

Two inclinations on the outside surface of the 25b of periphery wall portion are with being provided with contact protrusion portion 28 near the combined hole 27.In other words, a remaining inclination is with not establishing contact protrusion portion near the combined hole 27.It is adjacent that above-mentioned two contact protrusion portions 28 and inclination are accepted recess 26b with the outside of combined hole 27, begins to form along the radially outstanding of camera axis OA from outside surface.In the present embodiment, the cross sectional shape of these two contact protrusion portions 28 is semicircle (referring to Fig. 8).

As shown in Figures 2 and 3, the 5th eyeglass that is used to support the 5th eyeglass to keep frame 25 supports that frame 26 is cylindrical basically, can embed week (referring to Fig. 1) in the straight liner 34.As stated; The 5th eyeglass supports frame 26 to combine with the protruding mortise 32d of first rotating cylinder 32 via the straight key mortise 34b of straight liner 34 through the cam follower 26a that is positioned on the outer surface of its rear end; Drive and rotate thereby receive first rotating cylinder 32, and advance and retreat through rotation.The 5th eyeglass is supported frame 26 to be provided with three optical axis adjustment perforation 26b and is supported rib 26c.These optical axis adjustment perforation 26b is all along the periphery wall portion of radially running through the 5th eyeglass support frame 26 with respect to camera axis OA; When on the plane perpendicular to the axis of optical axis adjustment perforation 26b (below be called axially bored line) BA, observing, this optical axis adjustment perforation 26b is circle hole shape.Each optical axis adjustment perforation 26 corresponds respectively to the inclination combined hole 27 that the 5th eyeglass keeps frame 25; That is to say; With respect to camera axis radially, the axis of each optical axis adjustment perforation 26 keeps the axis of the inclination combined hole 27 on the frame 25 to be consistent with the 5th eyeglass of being supported frame 26 to take in by the 5th eyeglass to receive in other words the 5th eyeglass to support frame 26 to support.Observe from the rotation direction of camera axis OA, 120 ° of rotational angles at interval between each optical axis adjustment perforation 26b position are uniformly-spaced to be provided with in the present embodiment.And, be respectively equipped with screw thread (minus thread) on the optical axis adjustment perforation 26b internal perisporium face.

More near imaging surface one side, it is made as a circle around camera axis OA than optical axis adjustment perforation 26b in support rib 26c present position, supports that from the 5th eyeglass the inside surface of frame 26 is outstanding in frame, has dwindled the internal diameter of the 5th eyeglass support frame 26.When the 5th eyeglass keeps frame 25 in the interior week that is received to the 5th eyeglass support frame 26, support rib 26c and the 5th eyeglass to keep rear end end face 25c (end face of peripheral wall portion 25b rear end (referring to Fig. 8 and Fig. 9)) the clamping packing ring 65 of frame 25 with this.In this embodiment, the 5th eyeglass keeps the rear end end face 25c of frame 25 in supporting rib 26c to be oppositely arranged in camera axis OA direction.Lens light axis adjusting mechanism 60 is located at the 5th eyeglass and is supported in the frame 26, is used to support the 5th eyeglass to keep frame 25.

As shown in Figure 3, lens light axis adjusting mechanism 60 comprises three tilt adjustments parts 61, two eccentric adjustment screws 62, eccentric adjustment fixed screw 63, compression spring 64 and waveform packing ring 65.

Tilt adjustments parts 61 are used on camera axis OA direction, forming the 5th eyeglass and support frame 26 to support the 5th eyeglass to keep the support point of frame 25.As shown in Figure 5, these tilt adjustments parts 61 comprise the 61a of main column portion, eccentric axial portion 61b and a pair of bonding pad 61c of portion.61a is cylindrical for the main body principal part, can rotate among the 63c of endoporus portion of the 62a of endoporus portion that embeds and be attached to eccentric adjustment screw 62 freely or eccentric adjustment fixed screw 63 (referring to Fig. 8 or Fig. 9).Though the 61a of this main column portion can get into the outside with its external diameter size and accept recess 27b in inclination combined hole 27, but can't insert combination flank 27d and promptly get into the space between a pair of combination flank 27d.End at the 61a of main column portion front end promptly with on the eccentric axial portion 61b end opposite is provided with ditch mortise 61d.This ditch mortise 61d is the ditch shape mortise portion that is absorbed in the 61a of main column portion front end surface, promptly forms the hole shape of so-called depression.The axis of the 61a of this main column portion is the central axis CA of tilt adjustments parts 61.

Eccentric axial portion 61b is cylindrical, and its diameter is less than the 61a of main column portion, and the combination flank 27d that can insert inclination combined hole 27 promptly gets into the space between a pair of combination flank 27d.The size of this eccentric axial portion 61b is can be along moving (referring to Fig. 8 and Fig. 9) with its axial perpendicular direction in the combination flank 27d of inclination combined hole 27.Eccentric axial portion 61b is connected with the 61a of main column portion, is axis with eccentric axis EA, the parallel but off-center axis CA of this eccentric axis EA.This eccentric axial portion 61b is provided with a pair of bonding pad 61c of portion.

The above-mentioned bonding pad 61c of portion forms on perpendicular to the direction of eccentric axis EA in pairs, and is outstanding from the outer surface of eccentric axial portion 61b, and can insert each aperture enlarged portion 27a of this inclination combined hole 27 along the axis direction of inclination combined hole 27.The external diameter size of this a pair of bonding pad 61c of portion allows its inboard that gets in this inclination combined hole 27 to accept recess 27c inside.Like Fig. 8 and shown in Figure 9, clamping inclination combined hole 27 combines flank 27d between the lower surface 61f of the upper surface 61e of this a pair of bonding pad 61c of portion and the 61a of main column portion.In other words; In inclination combined hole 27, it is relative that recess 27b is accepted in the 61a lower surface 61f of main column portion of inclination bonded block 61 and the outside, and it is relative that recess 27c is accepted in the upper surface 61e of a pair of bonding pad 61c of portion of while and inboard; Thereby make a pair of bonding pad 61c of portion aim at a pair of aperture enlarged portion 27a; Tilt adjustments parts 61 are inserted after the inclination combined holes 27, and these tilt adjustments parts 61 of rotation inclination combined hole 27 in combine thereby make the upper surface 61e of a pair of bonding pad 61c of portion accept recess 27c with the inboard; Form so-called bayonet socket and combine, prevent that tilt adjustments parts 61 from dropping when this inclination combined hole 27 leaves.

Two eccentric adjustment screws 62 form the support point that the 5th eyeglass support frame 26 supports the 5th eyeglass keeps frame 25 on perpendicular to camera axis OA direction.As shown in Figure 6; These two eccentric adjustment screws 62 are all cylindrical; Its external diameter size allows its embedding and is attached to the 5th eyeglass to support among the optical axis adjustment perforation 26b on the frame 26; And the periphery wall of this off-centre adjustment screw 62 is provided with screw thread (plus thread), and the screw thread that is used for adjusting on the perforation 26b internal perisporium face with optical axis combines.The hollow space of these two eccentric adjustment screws 62 is that the axis that the 62a of endoporus portion receives with this off-centre adjustment screw 62 is the restriction of the inner peripheral surface at center; The 61a of main column portion of tilt adjustments parts 61 can insert the 62a of this endoporus portion, and rotates (referring to Fig. 8) freely therein.For this reason; Two eccentric adjustment screws 62 are screwed into respectively among the optical axis adjustment perforation 26b; This off-centre adjustment screw 62 moves along with rotating on the axis BA direction of optical axis adjustment perforation 26b; Meanwhile, the tilt adjustments parts 61 that are maintained among the 62a of its endoporus portion can rotate freely therein, make axis BA and central axis CA be consistent.And the axially bored line BA that these two eccentric adjustment screws 62 are regulated perforation 26b along optical axis moves to camera axis OA direction, makes bottom surface 62b touch the 5th eyeglass and keeps the contact protrusion portion 28 on the frame 25 peripheral wall portion 25b.

As stated, two eccentric adjustment screws 62 are provided with ditch mortise 62c on the leading section of its bottom surface 62b opposite end, and this ditch mortise 62c front end is recessed to form ditch portion, constitutes negative hole shape.In optical axis adjustment perforation 26b; The bottom surface 62b of eccentric adjustment screw 62 touches before the contact protrusion portion 28; Eccentric adjustment screw 62 moves (referring to Fig. 8) to camera axis OA one side on axially bored line BA direction; Under this state, the front end that the ditch mortise 62c bottom that is arranged in eccentric adjustment screw 62 front ends is positioned at the tilt adjustments parts 61 that are inserted into the 62a of endoporus portion is the upside of the front position of ditch mortise 61d, promptly is positioned at the camera axis OA outside radially relatively.

Eccentric adjustment fixed screw 63 forms the support point that the 5th eyeglass support frame 26 supports the 5th eyeglass keeps frame 25 on perpendicular to camera axis OA direction.As shown in Figure 7, the outward appearance of this off-centre adjustment fixed screw 63 is essentially cylindrical shape, exactly be subsection cylindrical shape, and its front end promptly is positioned at the diameter (referring to Fig. 9) greatly of radial outside one end of camera axis OA.The diameter that the large-diameter portion 63a of eccentric adjustment fixed screw 63 has allows it to get into the 5th eyeglass and supports the optical axis adjustment perforation 26b on the frame 26; And; The periphery wall of this off-centre adjustment fixed screw 63 is provided with Luo Cao (plus thread), and the screw thread that is used for adjusting on the perforation 26b internal perisporium face with optical axis combines.The diameter that the minor diameter part 63b of eccentric adjustment fixed screw 63 has allows it to insert following compression spring 64 inside.The hollow space of this off-centre adjustment fixed screw 63 is that the 63c of endoporus portion runs through big neck 63a and minor diameter part 63b; The axis that receives with this off-centre adjustment fixed screw 63 is the restriction of the inner peripheral surface at center; The 61a of main column portion of tilt adjustments parts 61 can insert the 63c of this endoporus portion, and rotates (referring to Fig. 9) freely therein.For this reason; Off-centre is adjusted fixed screw 63 be screwed into optical axis adjustment perforation 26b; This off-centre adjustment fixed screw 63 not only can change its position on the axis BA direction of optical axis adjustment perforation 26b along with rotation; In order to be fixed in the optical axis adjustment perforation 26b, can also rotate the tilt adjustments parts 61 that are maintained among the 63a of endoporus portion simultaneously, make axis BA and central axis CA be consistent.

The front end that is positioned at the large-diameter portion 63a of minor diameter part 63b opposite end in the eccentric adjustment fixed screw 63 is provided with ditch mortise 63d.This ditch mortise 63d is the ditch mortise that the front end sunken end face forms, and becomes so-called negative hole shape.Following compression spring 64 is compressed to the appropriate location in optical axis adjustment perforation 26b before; Eccentric adjustment fixed screw 63 moves (referring to Fig. 9) to camera axis OA one side on axially bored line BA direction; Under this state; It is the upside of ditch mortise 61d front position that the bottom of the ditch mortise 63d of eccentric adjustment fixed screw 63 front ends is arranged in tilt adjustments parts 61 front ends that get into the endoporus 63c of portion, just is positioned at the outside radially of camera axis OA relatively.

The internal diameter that compression spring 64 is had allows its minor diameter part 63b outside that is enclosed within above-mentioned eccentric adjustment fixed screw 63, but large-diameter portion 63a can not insert wherein.On the other hand, the external diameter of this compression spring 64 allows it to insert the optical axis adjustment perforation 26b that the 5th eyeglass is supported frame 26, but can not insert the inclination combined hole 27 that the 5th eyeglass keeps frame 25.Present embodiment is as shown in Figure 9; This compression spring 64 is enclosed within the outside of eccentric adjustment fixed screw 63; The lower surface 63e of one of which end 64a contact large-diameter portion 63a is promptly towards the face of minor diameter part 63b one side; Other end 64b accepts recess 27b around the outside of inclination combined hole 27 peripheries, and keeps the peripheral wall portion 25b of frame 25 to contact with the 5th eyeglass.For this reason; When compression spring 64 is set in the inclination combined hole 27 at quilt with off-centre adjustment fixed screw 63, between the outer surface of the peripheral wall portion 25b of the lower surface of the large-diameter portion 63a of eccentric adjustment fixed screw 63 and the 5th eyeglass maintenance frame 25 generation is tending towards enlarging the acting force of distance between the two.This compression spring 64 is by means of the minor diameter part 63b of off-centre adjustment fixed screw 63, is that the footpath of camera axis OA upwards applies this acting force in the axially bored line BA of inclination combined hole 27 direction.

Waveform packing ring 65 is the optical axis direction functional component, be used for to the 5th eyeglass support frame 26 apply towards tilt adjustments parts 61 keep the direction of frame 25 formed support points at the 5th eyeglass, promptly towards the acting force of eccentric axial portion 61b outer peripheral face direction.In the present embodiment, the list that these packing ring 65 usefulness can be carried out elastic deformation constitutes annular shown in Figure 3, and the height on the circumferential diverse location of packing ring rises and falls along axis direction, thereby undulate, and this axis direction is consistent with camera axis OA.The external diameter that waveform packing ring 65 is had makes it can embed the 5th eyeglass and supports 26 interior weeks of frame and touch to support rib 26c.For this reason, waveform packing ring 65 support on rib 26c and the camera axis OA direction and the rear end end face 25c of the peripheral wall portion 25b of the 5th eyeglass maintenance frame 25 that this support rib 26c is oppositely arranged between.About this waveform packing ring 65; Need not be confined to the structure of present embodiment, keep frame 25 medium dip adjustment component 61 formed support point directions, be that the acting force of eccentric axial portion 61b outer peripheral face direction just can as long as its structure can support frame 26 to apply towards the 5th eyeglass to the 5th eyeglass.

Explanation the 5th eyeglass supports frame 26 to support the 5th eyeglass to keep the number of assembling steps of the supporting structure of frame 25 through lens light axis adjusting mechanism 60 below.Following number of assembling steps is only showed an example, and this example does not constitute any restriction to the present invention.

As shown in Figure 3, in supporting structure, at first support the front end that is positioned at object space one side the frame 26 to insert waveform packing ring 65 from the 5th eyeglass, make this waveform packing ring 65 and the 5th eyeglass support the support rib 26c in the frame 26 to contact.Then, support the object space one side front end of frame 26 to insert the 5th eyeglass from the 5th eyeglass and keep frame 25, make the 5th eyeglass keep the rear end face 25c and 65 contacts mutually of waveform packing ring of the peripheral wall portion 25b of frame 25.Like this, waveform packing ring 65 just is clamped in the rear end face 25c of the 5th eyeglass maintenance frame 25 and supports between the rib 26c (referring to Fig. 8 and Fig. 9).At this moment, the position that the 5th eyeglass supports each optical axis on the frame 26 to adjust between the inclination combined hole 27 of perforation 26b and the 5th eyeglass maintenance frame 25 is consistent, and promptly axially bored line BA and central axis CA are consistent.

Then, shown in Fig. 2 B, support frame 26 outsides that tilt adjustments parts 61 are inserted optical axis adjustment perforation 26b from the 5th eyeglass, and then insertion is positioned at the inclination combined hole 27 (referring to Fig. 4) that the 5th inboard eyeglass keeps frame 25.During insertion, a pair of bonding pad 61c of portion of tilt adjustments parts 61 is aimed at a pair of aperture enlarged portion 27a (referring to Fig. 4).Then at these tilt adjustments parts 61 of inclination combined hole 27 inner rotation, like Fig. 8 and shown in Figure 9, make the upper surface 61e of a pair of bonding pad 61c of portion be attached to the inboard and accept recess 27c, form bayonet socket and combine.Like this; In inclination combined hole 27; Recess 27c is accepted in the 61a lower surface 61f of the main column portion contact outside of tilt adjustments parts 61; Recess 27c is accepted in the upper surface 61e contact inboard of a pair of joint portion 61, thereby the combination flank 27d of inclination combined hole 27 receives the clamping from both sides, prevents that tilt adjustments parts 61 from dropping.

Then, shown in Fig. 2 B, off-centre is adjusted screw 62 support frame 26 outsides to be respectively charged into three optical axises adjustment perforation 26b in two optical axises adjustment perforation 26b of contact protrusion portion 28 from the 5th eyeglass.As shown in Figure 8; When the 61a of main column portion of tilt adjustments parts 61 gets into the 62a of internal control portion of this off-centre adjustment screw 62; Screw thread on the outer peripheral face of this off-centre adjustment screw 61 combines with screw thread on the optical axis adjustment perforation 26b periphery wall, and eccentric thus adjustment screw 62 is loaded into the optical axis adjustment 26b that bores a hole.At this moment; Through the adjusting screw binding capacity; Promptly regulate the advance and retreat amount that changes with pitch; Make these two eccentric adjustment screws 62 suitably move to camera axis OA along axially bored line BA, thereby bottom surface 62b just touch the jut 28 on the peripheral wall portion 25b that the 5th eyeglass keeps frame 25 in optical axis adjustment perforation 26b inside.Like this, two eccentric adjustment screws 62 just keep tilt adjustments screw 61 respectively, and this tilt adjustments screw 61 rotates freely therein, make the axially bored line BA of central axis CA and optical axis adjustment perforation 26b be consistent.Therefore, in two optical axises adjustment perforation 26b of abutment lug portion 28,, can relatively rotate between the two along axially bored line BA pack into eccentric adjustment screw 62 and tilt adjustments parts 61.

On the other hand, not in the optical axis adjustment perforation 26b of contact protrusion portion 28, eccentric adjustment fixed screw 63 is supported frame 26 outsides to pack into wherein with compression spring 64 from the 5th eyeglass.As shown in Figure 9; Compression spring 64 is enclosed within the outside of the minor diameter part 63b of this off-centre adjustment fixed screw 63; Under this state; The 61a of main column portion of tilt adjustments parts 61 is inserted the 63c of endoporus portion of eccentric adjustment fixed screw 63, and the Luo Cao that off-centre is adjusted on the internal perisporium face of screw thread and optical axis adjustment perforation 26b on the large-diameter portion 63b periphery wall of fixed screw 63 combines, thereby eccentric adjustment fixed screw 63 is loaded into the optical axis adjustment 26b that bores a hole.Like this, keep tilt adjustments parts 61 with eccentric adjustment fixed screw 63, these tilt adjustments parts 61 rotate freely therein, make the central axis CA of these tilt adjustments parts 61 and the axially bored line BA of optical axis adjustment perforation 26b be consistent.For this reason,, can relatively rotate between this three not adjusting pack among the perforation 26b eccentric adjustment fixed screw 63, compression spring 64 and tilt adjustments parts 61 along axially bored line BA in abutting connection with an optical axis of contact protrusion portion 28.In optical axis adjustment perforation 26b; The lower surface 63e of the large-diameter portion 63a of the eccentric adjustment of the one end 64a contact fixed screw 63 of compression spring 64; Other end 64b contacts the outer surface that the 5th eyeglass keeps the peripheral wall portion 25b of frame 25, and on the position that compression spring 64 suitably is compressed, fixing should off-centre adjustment fixed screw 63.Compression spring 64 is through minor diameter part 63b generation effect on axially bored line BA of eccentric adjustment fixed screw 63, and promptly the action direction of compression spring 64 is an axially bored line BA direction.

According to the above, keep frame 25 to be assembled into the 5th eyeglass on the 5th eyeglass and support in the frame 26 that the 5th eyeglass keeps frame 25 to receive the support (referring to Fig. 2 A) that the 5th eyeglass keeps frame 25 by means of lens light axis adjusting mechanism 60.In this supporting structure, two eccentric adjustment screws 62 of the optical axis adjustment perforation 26b that packed into along axially bored line BA are free to advance or retreat therein, and the bottom surface 62b of this off-centre adjustment screw 62 contacts the 5th eyeglass and keeps the contact protrusion portion 28 on frame 25 25b of periphery wall portion.And; One end 64a of the compression spring 64 that is compressed contacts with the lower surface 63a that the off-centre in being fixed on optical axis adjustment perforation 26 is adjusted the large-diameter portion 63a of fixed screw 63, and other end 64b then keeps the outer peripheral face of the 25b of periphery wall portion of frame 25 to contact with the 5th eyeglass.For this reason, the 5th eyeglass keeps frame 25 on the direction perpendicular to camera axis OA, to receive the support of other end 64b of bottom surface 62b and the compression spring 64 of two eccentric adjustment screws 62.

In above-mentioned supporting structure; With two eccentric adjustment screws 62 and an eccentric adjustment fixed screw 63; Keep three tilt adjustments parts 61 (61a of its main column portion) among the optical axis adjustment perforation 26b; Make the central axis CA of these tilt adjustments parts 61 consistent, and these tilt adjustments parts 61d can rotate freely around this axially bored line BA with axially bored line BA.Be provided with eccentric axial portion 61b in each tilt adjustments parts 61, the central axis CA of its eccentric axis EA offset from body post 61a of portion, this eccentric axial portion 61b is positioned at the inboard of the combination flank 27b of inclination combined hole 27.On the other hand; Keep between the rear end face 25c (rear end face of peripheral wall portion 25b) of frame 25 and the support rib 26b that the 5th eyeglass is supported frame 26 waveform packing ring 65 being set at the 5th eyeglass, make the 5th eyeglass keep frame 25 on camera axis OA direction, to receive towards optical axis adjustment perforation 26b one side promptly towards the acting force of object space.For this reason; The 5th eyeglass keeps frame 25 to be applied in acting force; The combination flank 27b that this acting force makes each inclination combined hole 27, be specially inclination combined hole 27 is tending towards taking the photograph body one side to quilt and promptly moves towards the front end of this inclination combined hole 27 with respect to the eccentric axial portion 61b of the tilt adjustments parts 61 on the axially bored line BA that is set at each optical axis adjustment perforation 26b.For this reason, be set at tilt adjustments parts 61 on the axially bored line BA of each optical axis adjustment perforation 26b, be specially the outer peripheral face that is arranged in imaging surface one side among the eccentric axial portion 61b of these tilt adjustments parts 61 and contact with the inner peripheral surface that the combination flank 27d of inclination combined hole 27 is positioned at object space one side.Like this on camera axis OA direction; The 5th eyeglass keeps the combination flank 27d of frame 25 through each inclination combined hole 27, receives being installed in the support that the 5th eyeglass is supported the eccentric axial portion 61b of the tilt adjustments parts 61 among each optical axis adjustment perforation 26b on the frame 26.

And then; In above-mentioned supporting structure; The 61a of main column portion that keeps tilt adjustments parts 61 among each optical axis adjustment perforation 26b; Through two eccentric adjustment screws 62 or eccentric adjustment fixed screw 63, make central axis CA and the axially bored line BA of the 61a of this main column portion be consistent, the 61a of this main column portion is that rotate freely at the center with this axially bored line BA.Be provided with eccentric axial portion 61b in each tilt adjustments parts 61, the central axis CA of the eccentric axis EA offset from body post 61a of portion of this eccentric axial portion 61b.For this reason; If around the axially bored line BA of each optical axis adjustment perforation 26b is that the central axis CA of the 61a of main column portion is rotated the tilt adjustments parts 61 that keep in off-centre adjustment screw 62 or the eccentric adjustment fixed screw 63 in each optical axis adjustment perforation 26b, then eccentric axial portion 61a promptly the eccentric axis EA of this excentric shaft 61a will be thereupon with axially bored line BA (central axis CA) thus be that the change position is rotated at the center.In view of the above; Rotate the tilt adjustments parts 61 among each optical axis adjustment perforation 26b; Just can be on camera axis OA direction; Make eccentric axial portion 61b adjust perforation 26b, be specially the axially bored line BA that optical axis is adjusted perforation 26b, just support the variation of frame 26 occurrence positions with respect to the 5th eyeglass with respect to each optical axis.

As stated; In above-mentioned supporting structure; The 5th eyeglass keeps frame 25 in the 5th eyeglass is supported frame 26, to receive waveform packing ring 65 it is applied acting force; Keep the combination flank 27d in each inclination combined hole 27 on the frame 25 to support the eccentric axial portion 61b of the tilt adjustments parts 61 among each optical axis adjustment perforation 26b of frame 26 to contact at the 5th eyeglass, limit the 5th eyeglass and keep frame 26 moving to each optical axis adjustment perforation 26b direction on camera axis OA direction with being installed in the 5th eyeglass.Through rotating the tilt adjustments parts 61 of each optical axis adjustment perforation 26 inside, eccentric axial portion 61b adjusts the axially bored line BA of perforation 26b, promptly supports the position of frame to change with respect to the 5th eyeglass with respect to optical axis on camera axis OA direction.Like this; Make the 5th eyeglass keep frame 25 to take the photograph body one side with core shift axial region 61b and move to assigned position to quilt; This assigned position can change through rotating the inner tilt adjustments parts 61 of each optical axis adjustment perforation 26b on camera axis OA direction; Just can on camera axis OA direction, support the 5th eyeglass in the frame 26 to keep three support points on the frame 25 to adjust thus to the 5th eyeglass.Like this, through the tilt adjustments parts 61 in each optical axis adjustment perforation of suitable rotation 26b, can make that the 5th eyeglass in the 5th eyeglass support frame 26 keeps frame 25, just the 5th lens set 15 obtains adjustment with respect to the inclination of camera axis OA.At this moment, the front end end of the 61a of main column portion in each tilt adjustments parts 61 is provided with ditch mortise 61d, carries out rotating operation so that the front end of very little adjustment means such as straight screwdriver inserts this ditch mortise 61d.According to the above, three tilt adjustments parts 61 in the present embodiment have the tilt adjustments function, can change the 5th eyeglass and keep frame 25 to support the support point position of frame 26 on camera axis OA direction with respect to the 5th eyeglass.

And above-mentioned supporting structure the direction perpendicular to camera axis OA be camera axis OA radially, the 5th eyeglass keeps frame 25 to support frame 26 inside to receive the bottom surface 62b of two eccentric adjustment screws 62 and the other end 64b of compression spring 64 supports at the 5th eyeglass.These two eccentric adjustment screws 62 are installed in the optical axis adjustment perforation 26b, can rotate around the axially bored line BA of this optical axis adjustment perforation 26b, and along with this rotation, eccentric adjustment screw 62 can move on this axially bored line BA direction.In addition, compression spring 64 receives the compression of being fixed in the off-centre adjustment fixed screw 63 among the optical axis adjustment perforation 26b, and this compression direction is that the telescopic spring direction is axially bored line BA direction.Therefore on direction perpendicular to camera axis OA; Can be through rotating two off-centre adjustment screws 62 among the optical axis adjustment perforation 26b; Changing each bottom surface 62b is the supporting location that the footpath of camera axis OA makes progress in axially bored line BA direction; And then compression spring 64 is suitably flexible with this; Thereby the other end 64b that changes this compression spring 64 is a camera axis OA supporting location radially in axially bored line BA direction, on perpendicular to the direction of camera axis OA, supports the 5th eyeglass in the frame 26 to keep three support points on the frame 25 to adjust to the 5th eyeglass thus.Like this, through two eccentric adjustment screws 62 among each optical axis of suitable rotation adjustment perforation 26b, can make the 5th eyeglass support the 5th eyeglass in the frame 26 keep frame 25 promptly the 5th lens set 15 be that eccentric position obtains adjustment with respect to the position of camera axis.At this moment, the front end end of two eccentric adjustment screws 62 is provided with ditch mortise 62c, carries out rotating operation so that the front end of very little adjustment means such as straight screwdriver inserts this ditch mortise 62c.In addition, can also suitably rotate the off-centre adjustment fixed screw 63 in the optical axis adjustment perforation 26b as required, the acting force of adjustment adjustment compression spring 64 changes the supporting location of the other end 64b of compression spring 64 with this.At this moment, the front end end of eccentric adjustment fixed screw 63 also is provided with ditch mortise 63d, and the front end of being convenient to very little adjustment means such as straight screwdriver inserts this ditch mortise 63d and carries out rotating operation.According to above-mentioned; In the present embodiment two eccentric adjustment screws 62 and eccentric adjustment fixed screw 63 and compression spring 64 play the effect of eccentric adjustment component, can make the 5th eyeglass keep frame 25 to support that with respect to the 5th eyeglass frame 26 is that the support point position radially of camera axis OA changes in the direction of vertical and camera axis OA.

Utilize Figure 10 to Figure 12 to explain that an example is the structure of camera 100 with the optical system device that comprises the camera lens 10 shown in the foregoing description as the camera of photographic optical system below.Figure 10 is the stereographic map of this camera 100 when object space is promptly taken the photograph the outward appearance of body side's view camera 100.Figure 11 is the i.e. stereographic map of this camera 100 during the outward appearance of view camera 100 from the camera back side from cameraman one side.Figure 12 is the functional structure module map of camera 100.Describe with camera 100 at this, but also occurred in recent years in carrying type information terminal devices such as so-called personal data processing assistant (PDA, personal data assistant) or mobile phone, carrying camera.

Though above-mentioned carrying type information terminal device has some differences in appearance; But in fact have and camera 100 identical functional structures under the situation mostly, this type carrying type information terminal device can adopt the optical system device that possesses the camera lens 10 that the present invention relates to equally.In addition, the optical system device that possesses the camera lens 10 that the present invention relates to also is applicable to image-input device.

Like Figure 10 and shown in Figure 11; Camera 100 comprises that with lower component photographic lens 101, shutter release button 102, zoom key 103, view finder 104, exposer 105, LCD 106, operating key 107, power switch 108, storage card insert mortise 109 and communication card is inserted mortise 110 etc.And then shown in figure 12, camera 100 also possesses: photo detector 201, signal processing apparatus 202, image processing apparatus 203, central processing unit (CPU) 204, semiconductor memory 205 and communication card 206 etc.Though clearly do not show that at this action of these parts is by the powered battery as driving power.

Camera 100 has photographic lens 101 and as the photo detector 201 of area sensors such as electric charge coupling (CCD) imaging apparatus, and this photo detector 201 reads the object that the picture of being taken the photograph body is the photography target that forms of the photographic lens 101 of photographic optical system.As stated, this photographic lens 101 uses and comprises camera lens 10 of the present invention at interior optical system device.The optical element that is specially with formation camera lens 10 is formation optical devices such as eyeglass, and is for example as shown in Figure 4, constitutes photo detector with solid-state imager.Camera lens 10 has and keeps each piece eyeglass, the structure of the move operation of each set of contact lenses at least.In the ordinary course of things, the photographic lens 101 that is assembled in the camera 100 is assembled according to the form of this optical system device.

In the receiving state that Figure 10 A shows; Optical system device is in contraction state; Be that camera lens 10 is incorporated in basket inside, the structure that the stationary magazine creel 31 (referring to Fig. 1) of part optical system device such as camera lens 10 is given prominence to from basket during still for receiving state is also no problem.In addition, this camera lens 10 can also constitute the structure of on basket, loading and unloading with solid-state imager 17 and optical low-pass filter 18 (referring to Fig. 1), and then, can also constitute camera lens 10 and be independent of solid-state imager 17 and on basket, load and unload with optical low-pass filter 18.

The signal that receives 202 pairs of photo detectors of signal processing apparatus, 201 outputs of central processing unit 204 controls is handled, and converts thereof into digital image information.Same under the control of central processing unit 204, after the Flame Image Process that signal processing apparatus 202 digitized image informations are stipulated in image processing apparatus 203, be saved in the semiconductor memory 205 such as nonvolatile memory.Semiconductor memory 205 both can be to insert memory cards to insert the storage card in the mortise 109, also can be to be built in the inner semiconductor memory of camera main frame.Both the image of photographing can be shown on the LCD 106, the image that is kept in the semiconductor memory 205 can also be shown.In addition, the image of preserving in the semiconductor memory 205 can also be inserted the communication card etc. 206 of mortise and is sent to the outside through inserting communication card.

Shown in Figure 10 A, camera 100 is when carrying, and photographic lens 101 is in contraction state D, is collected in camera 100 machines.Behind user's operating power switch 108, power connection, shown in Figure 10 B, camera lens stretches out, and is outwards outstanding from the body of camera 100, becomes photography state P (referring to Fig. 2 B).At this moment; When if first lens set, 11 to the 5th lens set 15 constitute the zoom lens that can change focal length; In camera lens 10 inside of photographic lens 101, the optical system of respectively organizing that constitutes varifocal mirror for example is in wide-angle position, can be through operation zoom key 103; The setting of respectively organizing optical system is changed, do to become doubly action to the end of looking in the distance.The visual angle change that is driven in photographic lens 101 in the optical system of this preferred view finder 104 becomes doubly.

As a rule, further press shutter key 102 through partly focusing on by operation of the key 102 of partly tripping, carry out taking by the back entirely, processing after this as stated.

On LCD 106, show the image preserved in the semiconductor memory 205, or through communication card etc. when the image of preserving in the semiconductor memory 205 is sent in the outside, by predetermined operation operating key 107.Used semiconductor memory 205 and communication card etc. at 206 o'clock, and be inserted into similar storage card and insert mortise 109 and communication card and insert in the slotting mortise of special use such as mortise 110 or general usefulness and use.

In the camera lens 10 of present embodiment; Lens light axis adjusting mechanism 60 is used to adjust the 5th eyeglass and keeps frame 25 to support the off-centre adjustment and the tilt adjustments of frame 26 with respect to the 5th eyeglass; This lens light axis adjusting mechanism 60 comprises eccentric adjustment component and tilt adjustments parts; Eccentric adjustment component is two eccentric adjustment screws 62, eccentric adjustment fixed screw 63 and compression springs 64, and the tilt adjustments parts are three tilt adjustments parts 61.This off-centre adjustment component and tilt adjustments parts all support that with the 5th eyeglass the axially bored line BA of each optical axis adjustment perforation 26b on the frame 26 is that the center is installed among the optical axis adjustment perforation 26b, can relatively rotate between mutually.For this reason, the space that is used to be provided with eccentric adjustment component and tilt adjustments parts is half-sized, and eccentric adjustment and tilt adjustments still can independently be carried out separately.In other words, the parts (structure) of eccentric adjustment and be used for tilt adjustments parts (structure) the efficient excellence is set.

In camera lens 10, two eccentric 62a of endoporus portion and off-centre of adjusting in the screw 62 are adjusted the 61a of main column portion that inserts tilt adjustments parts 61 among the 63c of endoporus portion in the fixed screw 63 respectively, and the 61a of this main column portion can rotate therein.For this reason, though eccentric adjustment component and tilt adjustments parts are that the center is adjusted among the perforation 26b for being coaxially installed on each optical axis with axially bored line BA simultaneously, can carry out off-centre adjustment and tilt adjustments respectively, for this reason, structure is little and simple.

And then; In camera lens 10, change the rotation attitude of three tilt adjustments parts 61 among the optical axis adjustment perforation 26b respectively; Make the position of outer peripheral face of eccentric axial portion 61b change, and the position of this eccentric axial portion 61b is tilt adjustments parts 61 keep frame with respect to the 5th eyeglass on camera axis OA direction support point.For this reason, said structure is adjusted the 5th eyeglass and is kept the i.e. inclination of the 5th lens set 15 of frame 25 through the rotating operation of each tilt adjustments parts 61, and structure is little and simple.

In camera lens 10, can rotate the tilt adjustments parts 61 that remain on freely among the optical axis adjustment perforation 26b around axially bored line BA respectively and constitute, the axle core of the axle core offset from body post 61a of portion of its eccentric axial portion 61b.This structure is little and simple, and small and can change continuously with respect to the variable quantity of tilt adjustments parts 61, the five lens set 15 on camera axis OA direction, regulates thereby can carry out high precision to the inclination of the 5th lens set.

Support in the frame 26 at the 5th eyeglass of camera lens 10; The 5th eyeglass keeps frame 25 to receive waveform packing ring 65 all the time it is applied on the camera axis OA direction acting force of promptly being taken the photograph body one side towards optical axis adjustment perforation 26b one side, and it is the supporting location of the 5th lens set 15 with respect to the 5th eyeglass support frame 26 that this structure is convenient on camera axis OA direction, further adjust rightly the 5th eyeglass maintenance frame 25.

In camera lens 10, adjust screw 62 as eccentric adjustment component with off-centre, the bottom surface 62b of this off-centre adjustment screw 62 keeps the support point of the contact protrusion portion 28 on the frame 25 peripheral wall portion 25b for upwards support the 5th eyeglass in the footpath that perpendicular to camera axis OA direction is camera axis OA.Eccentric adjustment screw 62 constitutes; Change the position of bottom surface 62b through the rotating operation of each eccentric adjustment screw 62; Adjust the 5th eyeglass and keep the i.e. eccentric position of the 5th lens set 15 of frame 25, come the 5th lens set 15 is carried out the off-centre adjustment with simple structure.

In camera lens 10; Use eccentric adjustment fixed screw 63 and compression spring 64 as eccentric adjustment component; Change the 5th eyeglass contact protrusion portion 28 on the frame 25 peripheral wall portion 25b that keeps and receive above-mentioned two positions that the eccentric support point of adjusting screws 62 supports makes progress in the footpath that perpendicular to camera axis OA direction is camera axis OA; Adjust the 5th eyeglass and keep the i.e. eccentric position of the 5th lens set 15 of frame 25, simplify eccentric adjustment operation.

In camera lens 10, the periphery wall of eccentric adjustment screw 62 is provided with screw thread, and this screw thread combines with the screw thread that each optical axis is adjusted on the perforation 26b internal perisporium face; Like this; Not only structure is little and simple, and with respect to the rotating operation amount of off-centre adjustment screw 62, and the 5th lens set 15 is minimum perpendicular to the variable quantity on the camera axis OA direction and can change continuously; Therefore, can carry out the high precision adjustment to the 5th lens set 15.

In camera lens 10 perpendicular on the camera axis OA direction; Remain on support points that the 5th eyeglass supports the 5th eyeglasses in the frame 26 to keep supported by two eccentric adjustment screws 62 and be compressed spring 64 all the time it is applied acting force, this structure be convenient to further adjust rightly the 5th eyeglass keep frame 25 promptly the 5th lens set 15 support frame 26 perpendicular to the supporting location on the camera axis OA direction with respect to the 5th eyeglass.

Remain on the 5th eyeglass and support that the 5th eyeglass maintenance frame 25 in the frame 26 is that the 5th lens set 15 can access the high precision adjusting, support frame 26 to install on the 5th eyeglass, can make this camera lens 10 have the photography property of excellence as camera lens 10.In other words; In camera lens 10; The 5th eyeglass supports that frame 26 has kept keeping frame 25 and lens light axis adjusting mechanism 60 to carry out the 5th lens set 15 that high precision is regulated by enough the 5th eyeglasses, supports frame to install as image pickup optical system on the 5th eyeglass, can obtain excellent shooting performance.

In camera lens 10; The 5th eyeglass supports that frame has kept being used to keep the 5th eyeglass of the 5th lens set 15 to keep frame 25; The 5th eyeglass keeps frame 25 to adjust through lens light axis adjusting mechanism 60; Like this, just can adjust position and the posture of the 5th eyeglass maintenance frame 25 in the 5th eyeglass support frame 26 by enough lens light axis adjusting mechanisms 60, with the adjustment structure of having simplified the 5th lens set 15.

In camera lens 10; The 5th eyeglass keeps frame 25 in the 5th eyeglass support frame 26, to receive the support of eccentric adjustment component and tilt adjustments parts all the time; Under this state, carry out eccentric adjustment and tilt adjustments, for this reason after the optical axis adjustment end of job, need be unfixing with cementing agent etc.; To keep adjusted state, the 5th lens set 15 of photographic optical system can obtain the adjustment of high precision optical axis like this.In other words, can the 5th eyeglass support in the frame 26 to the 5th eyeglass keep frame 25 promptly the hold mode of the 5th lens set 15 adjust, obtain photographic optical system through the adjustment of high precision optical axis.

In camera lens 10; 26b is inner in each optical axis adjustment perforation; Tilt adjustments parts 61 front ends that the ditch mortise 62c bottom of two eccentric adjustment screw 62 front ends is positioned at the 62a of endoporus portion that inserts this off-centre adjustment screw 62 are the top of ditch mortise 61d front end; Be the camera axis OA outside radially, like this, the rotating operation of eccentric adjustment screw 62 just can not have influence on tilt adjustments parts 61.

In camera lens 10; 26b is inner in each optical axis adjustment perforation; Tilt adjustments parts 61 front ends that the ditch mortise 63d bottom of eccentric adjustment fixed screw 63 front ends is positioned at the 63c of endoporus portion that inserts this off-centre adjustment fixed screw 63 are the top of ditch mortise 61d front end; Be the camera axis OA outside radially, like this, the rotating operation of eccentric adjustment fixed screw 63 just can not have influence on tilt adjustments parts 61.

In camera lens 10; Three tilt adjustments parts 61 are inserted into the 62a of endoporus portion of two eccentric adjustment screws 62 and the 63c of endoporus portion of an eccentric adjustment fixed screw 63; These tilt adjustments parts 61 not only can rotate freely therein; And front end also is provided with ditch mortise 61d, and like this, the rotating operation of tilt adjustments parts 61 just can not have influence on eccentric adjusting screw 62 and eccentric adjusting fixed screw 63.

In camera lens 10; Rotating operation is mutually noninterfere between three tilt adjustments parts 61, two eccentric adjustment screws 62 and eccentric adjustment fixed screw 63; Like this can be little and independently carry out optical axis adjustment operation in the simple structure, and independently carry out off-centre and adjust and tilt adjustments.

As stated, camera lens 10 involved in the present invention is expected to carry out off-centre adjustment and tilt adjustments reducing to be provided with under the situation in space.

Be that example has been explained camera lens of the present invention with camera lens 10 in the above-described embodiments; But the present invention does not limit to and this embodiment; Any camera lens; As long as its have following structure just can, comprise that promptly the eyeglass that is used to keep lens set keeps frame and support this eyeglass to keep the eyeglass of frame to support frame that this eyeglass keeps having kept in frame the lens set with the above lens formation of a slice from the inboard; At least be provided with three optical axis adjustment perforation on this support frame; This optical axis adjustment perforation constitutes around the optical axis of said lens set, and extends along this optical axis direction, coaxial eccentric adjustment component and the tilt adjustments parts of packing in each optical axis adjustment perforation; This off-centre adjustment component is used to change perpendicular to the eyeglass on the lens light axis direction supports frame to support eyeglass to keep the support point position of frame, and the eyeglass that these tilt adjustments parts are used to change on the lens light axis direction supports frame to support eyeglass to keep the support point position of frame.

The foregoing description is set in the 5th eyeglass of carrying out in the 5th eyeglass support frame 26 before the assembling and keeps the i.e. optical axis adjustment operation of the 5th lens set 15 of frame 25; But also can carry out the optical axis adjustment operation of the 5th lens set 15 supporting the 5th eyeglass to keep the 5th eyeglass of frame 25 to support frame 26 after camera lens 10 included first lens set 11～the 4th lens set 14 are installed by means of lens light axis adjusting mechanism 60.At this moment; On camera axis OA, be provided with and taken the photograph body (not shown) with predetermined distance; And make this quilt take the photograph body in the photographic optical system that comprises first lens set 11～the 5th lens set 15, to form images; When observing this shot object image, suitably rotate three tilt adjustments parts 61 and two eccentric adjustment component.The position of being taken the photograph the picture arrival kilter of body is the appropriate position of the 5th lens set 15 with respect to first lens set 11～the 4th lens set 14, so far, finishes the optical axis adjustment operation of the 5th lens set 15 with respect to first～the 4th lens set.

And then, in the structure of the foregoing description, the 5th lens set 15 is carried out the optical axis adjustment, but the present invention is not limited thereto, in addition, other lens set, for example the 4th lens set 14 also can be carried out the optical axis adjustment.

Set photographic optical system in the foregoing description and comprise the 5th lens set 15 and first lens set 11～the 4th lens set 14 through the adjustment of high precision optical axis; But present embodiment is not so limited, as long as just constitute with the eyeglass of supporting frame can carry out the optical axis adjustment through the support of lens light axis adjusting mechanism and keep the structure of frame can.

In the above-described embodiments; Be respectively equipped with ditch mortise 61d, 62c and 63d in tilt adjustments parts 61, eccentric adjustment screw 62 and the eccentric adjustment fixed screw 63; But the present invention is not so limited; This law is bright can also to adopt other modes or structure, comes to combine with the structure of carrying out tilt adjustments parts 61, eccentric adjustment screw 62 and eccentric adjustment fixed screw 63 rotating operations.

In the above-described embodiments; The 5th eyeglass supports to be provided with in the frame 26 three optical axis adjustment perforation 26b that are used for setting-up eccentricity adjustment component and tilt adjustments parts; But the present invention is not so limited; As long as can coaxial setting-up eccentricity adjustment component and tilt adjustments parts, optical axis adjustment perforation need not be confined to three.

More than based on embodiment camera of the present invention has been described, but concrete structure of the present invention do not limit to and the foregoing description, only otherwise break away from aim of the present invention, allowing increases, deletes or improve construction or design of the present invention.

Claims (11)

1. camera lens keeps frame and supports frame comprising eyeglass, and this eyeglass keeps frame to be used to keep the lens set that constitutes with the lens more than a slice, and this supports frame to keep frame with its inboard this eyeglass of supporting, this camera lens is characterised in that,

Lens light axis around said lens set on the said support frame is provided with three optical axis adjustment perforation at least, and this optical axis adjustment perforation is extended on this lens light axis direction,

Coaxial setting-up eccentricity adjustment component of difference and tilt adjustments parts in each above-mentioned optical axis adjustment perforation; This off-centre adjustment component is used on perpendicular to the lens light axis direction, changing the position that said support frame is supported the support point of said eyeglass maintenance frame, and these tilt adjustments parts are used on the lens light axis direction, changing said support frame and support said eyeglass to keep the position of the support point of frame.

2. camera lens according to claim 1; It is characterized in that; Have at least two eccentric adjustment component in said optical axis adjustment perforation, to rotate by the axially bored line around this optical axis adjustment perforation in the said eccentric adjustment component; And follow this rotation on this axially bored line, to advance and retreat, make the position of said support point change, simultaneously along said axially bored line direction; Have at least in this off-centre adjustment component an eccentric adjustment component in said optical axis adjustment perforation along shown in axially bored line, keep frame to apply to said eyeglass towards the acting force of this maintenances frame inboard.

3. camera lens according to claim 1; It is characterized in that; Said eccentric adjustment component can be rotated by the axially bored line around this optical axis adjustment perforation in said optical axis adjustment perforation; And follow this rotation on this axially bored line, to advance and retreat, make said support point change in the position of said axially bored line direction.

4. according to any described camera lens in the claim 1～3, it is characterized in that,

Said tilt adjustments parts extend along the axially bored line direction of this optical axis adjustment perforation in said optical axis adjustment perforation, are provided with eccentric axial portion in these tilt adjustments parts, and the axle core of this eccentric axial portion departs from this axially bored line,

These tilt adjustments parts can rotate around this axially bored line in said optical axis adjustment perforation, and simultaneously, this eccentric axial portion keeps frame to contact with said eyeglass on said lens light axis direction.

5. camera lens according to claim 4 is characterized in that, also is provided with the optical axis direction functional component on the said support frame, is used for keeping frame to apply towards the above each eccentric axial portion one side's of said lens light axis direction acting force to said eyeglass.

6. according to any described camera lens in the claim 1～5, it is characterized in that,

Each said eccentric adjustment component is cylindrical, inserts respectively and adjusts perforation to combine with said optical axis,

Each said tilt adjustments parts insert the hollow space of said eccentric adjustment component respectively.

7. according to any described camera lens in the claim 1～6, it is characterized in that,

With said lens set is first lens set, and to keep frame with said eyeglass be that first eyeglass keeps frame,

And then possess:

Second lens set, it constitutes with a slice lens at least;

Second eyeglass keeps frame, is used to keep said second lens set; And,

Lens barrel is used to keep said support frame and said second eyeglass to keep frame, and this support frame and second eyeglass keep frame to move therein.

8. a camera head is characterized in that, uses any described camera lens in the claim 1～7.

9. a digital camera is characterized in that, uses any described camera lens in the claim 1～7.

10. a carrying type information terminal is characterized in that, uses any described camera lens in the claim 1～7.

11. an image-input device is characterized in that, uses any described camera lens in the claim 1～7.

Images