CN104111526B - Endoscope apparatus - Google Patents
Endoscope apparatus Download PDFInfo
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- CN104111526B CN104111526B CN201410148017.1A CN201410148017A CN104111526B CN 104111526 B CN104111526 B CN 104111526B CN 201410148017 A CN201410148017 A CN 201410148017A CN 104111526 B CN104111526 B CN 104111526B
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- rotating member
- moving lens
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Abstract
The present invention provides a kind of change that can accurately carry out focal length and the endoscope apparatus easily minimized.Including possessing through the lens group comprising moving lens (21) come the endoscope apparatus of the photographing element (23) shot to subject：The rotating member (11) rotated freely centered on rotary shaft (J2)；Drive the motor of rotating member (11) rotation；The pin (15) and the moving lens maintaining part (14) of holding moving lens (21) abutted with the part (11B) with rotating member (11)；The spring (16) exerted a force to pin (15) to rotating member (11) side.Rotating member (11) includes：The columned part (11B) extended along optical axis direction；It is provided projectingly from the end face of the object side of part (11B) and the columned part (11A) thinner than part (11B).Partly the end face of (11B) includes abutting with pin (15) and the bearing surface (11d) that circumferentially continuously changes of the height on optical axis direction along part (11B).Moving lens maintaining part (14) is movably embedded in part (11A) along optical axis direction.
Description
Technical field
The present invention relates to endoscope apparatus.
Background technology
It is known to have the endoscope apparatus for the pan focus camera device for being equipped with being focused near point to far point, be equipped with
Focal length can be changed to obtain close to endoscope apparatus of camera device of enlarged drawing in observation etc..
With regard to focal length change endoscope apparatus for, endoscope apparatus as shown in Figure 8 be located at probe before
The sectional view of the camera device of end like that, widely uses camshaft 81 as drive mechanism.According to the camera device, motor
M rotary driving force is delivered to camshaft 81 to drive the camshaft 81 to rotate via gear 83, jackshaft 85 etc..To lens
87th, the 89 lens holding members 91 kept, 93 e axle supportings are in camshaft 81, and have the pin in insertion cam path 95,97
99、101。
When camshaft 81 is rotated by driving, pin 99,101 is moved in the direction of the optical axis along cam path 95,97.Pass through
The movement of above-mentioned pin 99,101 so that the lens 87,89 for being held in lens holding member 91,93 are moved respectively on optical axis direction
Desired position at.
So, if being used as the mechanism for moving lens 87,89, endoscope using the camshaft 81 for being formed with cam path
The further miniaturization of device becomes difficult.That is, if making the path of camshaft 81, insertion cam path 95,97 in pin 99,
101 are fixed in cam path 95,97 sometimes.If in addition, making the path of camshaft 81, can not fully ensure cam path
95th, 97 depth.
Therefore, as the example for moving lens in the case of without using the camshaft for being formed with cam path, it is known to
Tilt circumferencial direction of the end face of camshaft along camshaft, the knot for making the pin for being fixed on lens holding frames be abutted with the end face
Structure (with reference to patent document 1).For the structure, as the cam shaft rotates, the position of pin and lens holding frames is along camshaft
End face change, therefore, it is possible to make lens be moved axially along cam.
【Patent document 1】6-No. 82615 publications of Japanese Patent Publication
The technology of patent document 1 is primarily adapted for use in video camera, considers very small like that suitable for endoscope apparatus
Optical system situation.Therefore, by the structure of patent document 1 be applied to endoscope apparatus if, it is necessary to make an effort research with
Realize miniaturization.
The content of the invention
The present invention is made in view of the foregoing, and its object is to provide a kind of can accurately carry out focal length
Change and the lens movement for implementing focal position adjustment, and the endoscope apparatus easily minimized.
The endoscope apparatus of the present invention includes lens group, the shooting member shot through said lens group to subject
Part, wherein, said lens group moves at least one moving lens freely including the optical axis direction along said lens group, above-mentioned interior
Endoscopic device possesses：Rotating member, it is arranged on outside the radial direction of above-mentioned moving lens when from above-mentioned object side
Side, is rotated freely centered on the rotary shaft parallel with the optical axis of said lens group；Rotary driving part, it drives above-mentioned rotation
Component rotates；Moving lens maintaining part, it keeps above-mentioned moving lens, and has what is abutted with a part for above-mentioned rotating member
Abutting part；Force section, it exerts a force to abutting portion of the above-mentioned abutting part into above-mentioned rotating member, and above-mentioned rotating member includes：
Columned Part I, it extends along above-mentioned optical axis direction；Columned Part II, its diameter is than above-mentioned Part I
Diameter is small, is provided projectingly from the end face of the above-mentioned object side of above-mentioned Part I to above-mentioned object side and along above-mentioned optical axis side
To extension, the end face of the above-mentioned object side of above-mentioned Part I with above-mentioned abutting part including abutting by bearing surface, above-mentioned quilt
Bearing surface include during using the arbitrary position on the above-mentioned optical axis direction in above-mentioned Part I as starting point away from above-mentioned starting point
Circumferentially continuous the face changed of distance on above-mentioned optical axis direction along above-mentioned Part I, above-mentioned moving lens is protected
Hold portion and be movably embedded in above-mentioned Part II along above-mentioned optical axis direction.
" being exerted a force to arbitrary component to any part " represents to maintain be pressed against arbitrary component towards any part
State.
【Invention effect】
In accordance with the invention it is possible to provide a kind of change that can accurately carry out focal length and for implementing focus position
Put the lens movement of adjustment and the endoscope apparatus easily minimized.
Brief description of the drawings
Fig. 1 is the taking the photograph positioned at the leading section popped one's head in for representing the endoscope apparatus for illustrating one embodiment of the present invention
As the sectional view of the brief configuration of device.
Fig. 2 is the decomposition of the major part of the camera device of the leading section for being located at probe of the endoscope apparatus shown in Fig. 1
Stereogram.
Fig. 3 is the front view and side view of the rotating member shown in Fig. 2.
Fig. 4 be the rotating member shown in Fig. 2 from both direction when stereogram.
Fig. 5 is to represent the figure from the state after the Status Change focal length shown in Fig. 1.
Fig. 6 is the stereogram of the rotating member in the variation of the endoscope apparatus shown in Fig. 1.
Fig. 7 is the exploded perspective of the major part of the camera device in other variations of the endoscope apparatus shown in Fig. 1
Figure.
Fig. 8 is the sectional view of the camera device for the leading section for being located at probe for representing conventional endoscope apparatus.
【Symbol description】
11 rotating members
11b, 11c, 11d sell bearing surface
11e, 11f restraint face
12 rotary shafts
14 moving lens maintaining parts
15 pins
16 springs
17 front end side electrode supports
18 rear end side electrode supports
20 object lens
21 moving lens
22 prisms
23 photographing elements
30th, 31 bolster
Embodiment
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.
Fig. 1 is the taking the photograph positioned at the leading section popped one's head in for representing the endoscope apparatus for illustrating one embodiment of the present invention
As the sectional view of the brief configuration of device.
Endoscope apparatus possesses the lens group including object lens 20 and moving lens 21, subject entered through the lens group
CCD (Charge Coupled Device) types or CMOS (Complementaly Metal Oxide that row is shot
Semiconductor) the photographing element 23 of type.
Object lens 20 are the saturating of the position fixation on the direction (hereinafter referred to as optical axis direction) of the optical axis J1 extensions of lens group
Mirror.Object lens 20 are at least made up of a lens.Object lens 20 are kept by the holding member 19 for being fixed on framework 10.
Moving lens 21 is the lens for switching focusing range, is to move lens freely along optical axis direction.Moving lens 21
It is made up of at least one lens.Moving lens 21 is kept by moving moving lens maintaining part 14 freely along optical axis direction.
Prism 22 is provided with the rear of moving lens 21.Prism 22 makes to enter through object lens 20 and then through moving lens 21
The direction for the light being mapped on prism 22 changes 90 degree, and incident to photographing element 23.
The electricity for being built-in with the circuit substrate being connected with photographing element 23 or other electronic units is set at the rear of prism 22
Subassembly installation portion 24.In this manual, the rear of " 00 " refers to that the position ratio " 00 " on optical axis direction leans on subject
The opposite side of side.In addition, referring to that the position ratio " 00 " on optical axis direction leans on object side in front of " 00 ".
It should be noted that can also be configured to omit prism 22, and match somebody with somebody on the optical axis J1 at the rear of moving lens 21
Put photographing element 23.
The radial direction of lens group in the case where being located at the camera device of leading section of probe from object side
Outside, provided with being rotated freely using the rotary shaft J2 parallel with the optical axis of lens group as pivot and longer in the direction of the optical axis
Rotating member 11.
The end (leading section) of object side on the optical axis direction of rotating member 11, which is inserted into, to be fixed in framework 10
The hollow space of front end side electrode support 17.End (the rear end of side opposite with object side on the optical axis direction of rotating member 11
Portion) side opposite with object side by the rear end side electrode support 18 that is fixed in framework 10 by position limitation in the direction of the optical axis
To.In addition, the rearward end of rotating member turns into step by part 11C and part 11B (reference picture 2).Part 11C platform
Exponent part is from limiting the movement to object side on optical axis direction located at the step of framework 10.It should be noted that in rotation
The gap as small as possible rotated freely through for rotating member 11 is provided between component 11 and respective position limitation end.
Hole portion 11a is provided with the rearward end of rotating member 11, rotary shaft 12 is provided with hole portion 11a.Rotary shaft 12 is consolidated
It is connected due to rotating member 11 and with cable 13, the cable 13 and the actuator (not shown) as rotary driving part are (such as electric
Motivation) link.Rotary shaft 12 is received the rotary driving force from the motor and rotated centered on rotary shaft J2, is thus made solid
Rotating member 11 due to rotary shaft 12 is rotated centered on rotary shaft J2.
The moving lens maintaining part 14 of moving lens 21 is kept movably to be entrenched in rotating member 11 along optical axis direction
Front.Moving lens maintaining part 14 has insertion wherein and kept along the moving lens that is bonded and fixed to that optical axis direction extends
The pin 15 in portion 14.The end of the side opposite with object side on the optical axis direction of pin 15 with located at one of rotating member 11
Bearing surface 11b on point is abutted.Pin 15 is abutted and abutting longer in the direction of the optical axis as the part with rotating member 11
Portion and function.
In rotating member 11, spring 16 is wound with by object side in the part than chimeric moving lens maintaining part 14.
One end of spring 16 is contacted with front end side electrode support 17, and the other end of spring 16 is contacted with moving lens maintaining part 14.Spring 16
Exerted a force as the abutting portion of pin 15 towards rotating member 11 using its elastic force to being fixed on moving lens support 14
Force section and function.By the force of the spring 16, rotating member 11 is also exerted a force by rear end side electrode support 18, so as to
Make rotating member 11 in the direction of the optical axis without rotating with rocking.
Fig. 2 is the exploded perspective view of the major part being located in the camera device of the leading section of probe shown in Fig. 1.Fig. 3
(a) be rotating member 11 front view.Fig. 3 (b) is the right side view of the rotating member 11 from Fig. 3 (a) right side.Fig. 3 (c)
It is the left side view from Fig. 3 (a) left sides rotating member 11.Fig. 4 (a) is the rotation structure from Fig. 3 (a) left diagonally forward
The stereogram of part 11.Fig. 4 (b) is the stereogram of the rotating member 11 from Fig. 3 (a) right obliquely downward.
As shown in figs. 2 to 4, rotating member 11 includes extending along optical axis direction columned part 11A, along optical axis direction
The columned part 11B of the extension and columned part 11C extended along optical axis direction.
Part 11A from object side when diameter it is smaller than part 11B.In addition, part 11B's sees from object side
Diameter when examining is smaller than part 11C.
It is cylindric to refer to not only be included in the internal cylinder that cavity is not present, in addition to the cavity with insertion cylindrical inside
Cylinder or the inside of cylinder a part have cavity shape including shape.
Diameter when part 11A and part 11B are respectively formed as length ratio on optical axis direction from object side is big
Shape, i.e. longer shape in the direction of the optical axis.The end face of part 11A from part 11B object side is provided projectingly.
In the end face of part 11B object side, on the part in addition to the part except being formed with part 11A, if
Have with being fixed on bearing surface 11b, 11c, 11d that the pin 15 of moving lens maintaining part 14 is abutted.
When in the 11B of part using the arbitrary position on optical axis direction as starting point, bearing surface 11b is in light away from the starting point
The constant face of the distance height of face (also referred to as) on direction of principal axis.Bearing surface 11c is away from above-mentioned in the same manner as bearing surface 11b
The face of the constant distance in the direction of the optical axis of starting point.The bearing surface 11c ratio of distance in the direction of the optical axis away from above-mentioned starting point
The bearing surface 11b distance in the direction of the optical axis away from above-mentioned starting point is big.
Bearing surface 11d is circumferencial direction of the distance in the direction of the optical axis away from above-mentioned starting point along part 11B (with rotation
The direction of rotation of component 11 is equivalent in meaning) and the face that continuously changes.If as shown in figure 1, by bearing surface 11b away from above-mentioned starting point
Distance in the direction of the optical axis be set to H1, the bearing surface 11c distance in the direction of the optical axis away from above-mentioned starting point is set to H2,
Then bearing surface 11d turn into circumferencial direction of the distance in the direction of the optical axis away from above-mentioned starting point along part 11B H1~H2 it
Between consecutive variations face.
As shown in figure 1, the part 11B of rotating member 11 periphery is contacted with framework 10, and part 11B is by framework 10
Hold to rotate freely.Thereby, it is possible to prevent the position changing of the relative positions of the rotating member 11 to the direction orthogonal with optical axis direction, and make rotation
Component 11 is stably rotated.
Moving lens maintaining part 14 include longer strip part 14A in the direction of the optical axis and from part 14A to optical axis
The ledge 14B that the orthogonal direction in direction is protruded.
The hole portion along optical axis direction insertion is provided with the 14A of strip part, the part 11A of rotating member 11 passes through the hole
Portion.
Ledge 14B is kept to moving lens 21.In addition, being provided with ledge 14B along optical axis direction insertion
Hole portion, pin 15 passes through and is bonded and fixed to the hole portion.
In endoscope apparatus as constructed as above, indicate to carry out focal length when the operation by operating portion (not shown)
Change when, rotary shaft 12 is rotated in the presence of the rotary driving force of motor, the rotating member along with the rotation
11 are rotated.When rotating member 11 is rotated, the position that the progress of pin 15 is abutted is from bearing surface 11b to bearing surface 11d
It is mobile, and then moved on bearing surface 11d along part 11B circumferencial direction, it is finally moved to bearing surface 11c.
Position on the optical axis direction of rotating member 11 is fixed, and moving lens maintaining part 14 is moved freely along optical axis direction.
Therefore, with the pin 15 abutting portion movement, and moving lens maintaining part 14 is moved to object side, in supporting for pin 15
In the state of socket part position turns into shown in bearing surface 11c Fig. 5, the rotation of rotating member 11 stops.
Action more than, can be such that moving lens 21 is moved along optical axis direction, to change focal length.Here, say
Understand and change the example of focal length with the two stages of state shown in the state and Fig. 5 shown in Fig. 1, but it is also possible to pass through
Stop the rotation of rotating member 11 when the abutting portion of pin 15 comes the arbitrary position on bearing surface 11d, thus, it is possible to
More than three phases or continuously to carry out the change of focal length.
As described above, according to the endoscope apparatus, by make pin 15 the abutting portion abutted with rotating member 11
Position on optical axis direction continuously changes with the rotation of rotating member 11, thus enables that moving lens 21 along optical axis side
To movement.Therefore, in rotating member 11, without being upwardly formed cam path in the side orthogonal with optical axis direction, rotation can be realized
The thin footpath and manufacturing cost for turning component 11 are cut down.
Example as shown in Figure 8 like that, in the structure for being placed vertically pin and optical axis, is difficult to due to the length of pin
Shorten optical axis and the axle base of rotary shaft.According to Fig. 1 structure, due to making the optical axis between the length direction of pin and axle J1, J2
The free space in direction is consistent, therefore easily realizes thin footpath.
The part 11B of rotating member 11 diameter needs this degree of bearing surface for being formed to ensure to abut with pin 15
Value.In contrast, the part 11A of rotating member 11 diameter is smaller than part 11B.Also, moving lens maintaining part 14 is moved
Part 11A is embedded in freely.
So, by making moving lens maintaining part 14 be embedded in part 11A, the diameter of rotating member 11 is thus enabled that most
It is big identical namely with part 11B diameter, so as to realize the thin footpath of rotating member 11, while moving lens is kept
Portion 14 is supported as movement freely.In addition, the lower section in Fig. 1 of moving lens maintaining part 14, protects moving lens without setting
The supporting device for holding the supporting of portion 14 to move.Therefore, it is possible to realize the thin footpath in probe distal end portion.In addition, moving lens
Maintaining part 14 itself can also realize miniaturization.
In addition, in the endoscope apparatus, the part 11B of rotating member 11 is longer in the direction of the optical axis and by framework 10
Hold to rotate freely, therefore be restricted to the position changing of the relative positions in the direction orthogonal with optical axis direction.Therefore, it is possible to make rotating member
11 are stably rotated, in this structure that the part 11A not supported by framework 10 is fitted together to moving lens maintaining part 14,
The mobile accuracy of moving lens 21 can fully be ensured.
In addition, in the endoscope apparatus, the part 14A of moving lens maintaining part 14 ratio of length in the direction of the optical axis
The part 14A length on the direction orthogonal with optical axis direction is big.Therefore, it is possible to stably support moving lens maintaining part
14, and can stably carry out the movement of moving lens maintaining part 14.
In addition, in the endoscope apparatus, bearing surface 11bs of the part 11B provided with constant height in rotating member 11,
11c, therefore generate even in rotating member 11 a little rotation error, also only pin 15 in the bearing surface 11b, 11c
It is mobile, therefore, it is possible to accurately control the position of moving lens 21.
The camera device of the leading section for being located at probe shown in Fig. 1 of mistake described above can carry out various modifications.
For example, the part 11C of rotating member 11 can be formed as and part 11B identical thicknesses.
In addition, moving lens maintaining part 14 and pin 15 may not be split but formed integrally.By will be movably saturating
Mirror maintaining part 14 and pin 15 are formed as split so that processing becomes easy, and can cut down manufacturing cost.
Alternatively, it is also possible to replace spring 16, such as by setting the underface of pin 15 in moving lens maintaining part 14
The spring that part and the part of framework 10 opposed therewith link, thus exerts a force to pin 15 to the abutting portion of rotating member 11.
Alternatively, it is also possible to without using spring, and magnet is utilized to exert a force pin 15 to the abutting portion of rotating member 11.Example
Such as, can by the distributed magnet in the framework 10 opposed with the part immediately below the pin 15 in moving lens maintaining part 14, and
Moving lens maintaining part 14 is formed by magnetic, thus, it is possible to be exerted a force to pin 15 to the abutting portion of rotating member 11.
In addition, for rotating member 11 is located at part 11B bearing surface, it is convenient to omit bearing surface 11b, 11c and it is complete
Portion is formed as bearing surface 11d.
Fig. 6 (a) is being observed from left diagonally forward for the rotating member 111 in the variation of the endoscope apparatus shown in Fig. 1
Stereogram.Fig. 6 (b) is the stereogram of the rotating member 111 from right obliquely downward.It should be noted that for Fig. 3 and figure
The common key element mark same symbol of rotating member 11 shown in 4, is thus omitted or simplified explanation.
Rotating member 111 shown in Fig. 6 includes pin 15 (reference picture 1 and the figure with being fixed in moving lens maintaining part 14
2) restraint face 11e, 11f abutted along part 11B circumferencial direction.Restraint face 11e is arranged at part 11B bearing surface 11d's
The end side of one side of circumferencial direction, be connected setting with bearing surface 11b.Restraint face 11f is arranged on bearing surface 11d circumferencial direction
The opposing party end side, be connected setting with bearing surface 11c.Also, 11e, 11f surface are provided with bolster 30 in restraint face.
Rotary shaft 12 is rotated in the presence of the rotary driving force of motor, the rotating member along with the rotation
111 are rotated.When rotating member 111 rotates to a direction, pin 15 is from bearing surface 11b via bearing surface 11d to bearing surface
11c is moved, and the restraint face 11f being connected with bearing surface 11c is along the circumferential direction abutted.Thus, the rotation of rotating member 111 stops
Only, pin 15 is also stopped on bearing surface 11c.When rotating member 111 rotates round about, pin 15 from bearing surface 11c via
Bearing surface 11d is moved to bearing surface 11b, and the restraint face 11e being connected with bearing surface 11b is along the circumferential direction abutted.Thus, rotate
The rotation of component 111 stops, and pin 15 is also stopped on bearing surface 11b.
According to this variation, the feelings of focal length are changed in the two stages of state shown in the state and Fig. 5 shown in Fig. 1
Under condition, by restraint face 11e, 11f and the abutting of pin 15, moving lens maintaining part 14 can be positioned exactly, for example can profit
Although with poor but cheap and small-sized DC motor of the control accuracy of the anglec of rotation compared with pulse motor etc. etc..
Also, due on restraint face 11e, 11f surface be provided with bolster 30, therefore, it is possible to relax with restraint face 11e,
The associated impact of the abutting of 11f and pin 15.Thereby, it is possible to make rotating member 111 rotate more at high speed, Jiao of high speed can be carried out
The change of point distance.In addition, can suppress and impact associated pin 15 come off or rotating member 111 and pin 15 defect, from
And the waste material that can suppress the defect generation because of rotating member 111 and pin 15 enters such as rotating member 111 with it is movable thoroughly
Action caused by the chimeric telescoping part 11A of mirror maintaining part 14 is bad.
Bolster 30 can use the resin material more soft than rotating member 111 to be formed, for example can be by restraint
Elastic adhesive is applied on face 11e, 11f surface and its solidification is formed.
It should be noted that in this variation, bolster 30 is provided with restraint face 11e, 11f surface, but also may be used
With as shown in fig. 7, bolster 31 is set on the side face of pin 15, furthermore it is also possible in restraint face 11e, 11f surface and pin 15
Side face this both sides bolster is set.As the bolster 31 of the side face of pin 15, surface that for example can be with restraint face 11e, 11f
Bolster 30 likewise by applying elastic adhesive on the side face of pin 15 and form its solidification, or by pin
Rubber ring is covered on 15 to be formed.
It is as discussed above, following item is disclosed in this manual.
Disclosed endoscope apparatus is the shooting for including lens group, being shot through said lens group to subject
The endoscope apparatus of element, wherein, said lens group moves freely at least one including the optical axis direction along said lens group
Moving lens, above-mentioned endoscope apparatus possesses：Rotating member, it is arranged on above-mentioned movable saturating when from above-mentioned object side
On the outside of the radial direction of mirror, rotated freely centered on the rotary shaft parallel with the optical axis of said lens group；Rotary driving part,
It drives above-mentioned rotating member rotation；Moving lens maintaining part, it keeps above-mentioned moving lens, and has and above-mentioned rotating member
A part abut abutting part；Force section, it exerts a force to abutting portion of the above-mentioned abutting part into above-mentioned rotating member, above-mentioned
Rotating member includes：Columned Part I, it extends along above-mentioned optical axis direction；Columned Part II, its diameter ratio
The diameter of above-mentioned Part I is small, is provided projectingly from the end face of the above-mentioned object side of above-mentioned Part I to above-mentioned object side
And extend along above-mentioned optical axis direction, the end face of the above-mentioned object side of above-mentioned Part I includes the quilt abutted with above-mentioned abutting part
Bearing surface, it is above-mentioned to be included by bearing surface during using the arbitrary position on the above-mentioned optical axis direction in above-mentioned Part I as starting point
Circumferentially continuous the face that changes of the distance on above-mentioned optical axis direction away from above-mentioned starting point along above-mentioned Part I, on
State moving lens maintaining part and be movably embedded in above-mentioned Part II along above-mentioned optical axis direction.
Disclosed endoscope apparatus, which possesses, to be contacted with the periphery of above-mentioned Part I and is by the supporting of above-mentioned Part I
The support rotated freely, the length on above-mentioned optical axis direction of above-mentioned Part I is bigger than the diameter of above-mentioned Part I.
In disclosed endoscope apparatus, it is above-mentioned by bearing surface include away from above-mentioned starting point on above-mentioned optical axis direction away from
From for the first face with a distance from first, the distance on above-mentioned optical axis direction away from above-mentioned starting point it is bigger than the above-mentioned first distance second
What face, the distance on above-mentioned optical axis direction away from above-mentioned starting point continuously changed between above-mentioned first face and above-mentioned second face
3rd face.
In disclosed endoscope apparatus, above-mentioned to include restraint face by bearing surface, above-mentioned restraint face is respectively arranged at away from upper
The distance on above-mentioned optical axis direction of starting point is stated along circumferentially continuous the face changed of above-mentioned Part I upper
The both ends on circumferencial direction are stated, and are abutted along above-mentioned circumferencial direction with above-mentioned abutting part, in above-mentioned restraint face and above-mentioned abutting
At least one party in portion is provided with bolster.
In disclosed endoscope apparatus, the above-mentioned abutting part of above-mentioned moving lens maintaining part on above-mentioned optical axis direction compared with
It is long.
In disclosed endoscope apparatus, above-mentioned moving lens maintaining part includes chimeric with above-mentioned Part II above-mentioned
Longer strip part on optical axis direction, from the above-mentioned strip part protuberance prominent to the direction orthogonal with above-mentioned optical axis direction
Point.
Claims (7)
1. a kind of endoscope apparatus, including lens group, the photographing element that is shot through the lens group to subject, its
In,
The lens group moves at least one moving lens freely including the optical axis direction along the lens group,
The endoscope apparatus possesses：
Rotating member, it is arranged on the outside of the radial direction of moving lens when from the object side, with institute
State centered on the parallel rotary shaft of optical axis of lens group and rotate freely；
Rotary driving part, it drives the rotating member rotation；
Moving lens maintaining part, it keeps the moving lens, and the abutting abutted with the part with the rotating member
Portion；
Force section, it exerts a force to abutting portion of the abutting part into the rotating member,
The rotating member includes：Columned Part I, it extends along the optical axis direction；Columned Part II,
Its diameter is smaller than the diameter of the Part I, from the end face of the object side of the Part I to the object side
It is provided projectingly and extends along the optical axis direction,
The end face of the object side of the Part I include abutted with the abutting part by bearing surface,
It is described to be included by bearing surface during using the arbitrary position on the optical axis direction in the Part I as starting point
Circumferentially continuous the face that changes of the distance on the optical axis direction away from the starting point along the Part I,
The moving lens maintaining part is movably embedded in the Part II along the optical axis direction,
Described to include restraint face by bearing surface, the restraint face is respectively arranged at away from the starting point on the optical axis direction
Both ends on the circumferencial direction of the distance along circumferentially continuous the face changed of the Part I, and along institute
Circumferencial direction is stated to abut with the abutting part,
At least one party in the restraint face and the abutting part is provided with bolster.
2. endoscope apparatus according to claim 1, wherein,
Possess the support for being contacted with the periphery of the Part I and rotatably supporting the Part I,
The length on the optical axis direction of the Part I is bigger than the diameter of the Part I.
3. endoscope apparatus according to claim 1, wherein,
It is described that the distance on the optical axis direction away from the starting point is included for the first face of the first distance, away from institute by bearing surface
State the distance on the optical axis direction of starting point second face bigger than the described first distance and away from the starting point in the light
The 3rd face that distance on direction of principal axis continuously changes between first face and second face.
4. endoscope apparatus according to claim 2, wherein,
It is described that the distance on the optical axis direction away from the starting point is included for the first face of the first distance, away from institute by bearing surface
State the distance on the optical axis direction of starting point second face bigger than the described first distance and away from the starting point in the light
The 3rd face that distance on direction of principal axis continuously changes between first face and second face.
5. according to endoscope apparatus according to any one of claims 1 to 4, wherein,
The abutting part of the moving lens maintaining part is formed as longer on the optical axis direction.
6. according to endoscope apparatus according to any one of claims 1 to 4, wherein,
The moving lens maintaining part include longer strip part on the optical axis direction chimeric with the Part II,
And from the strip part ledge prominent to the direction orthogonal with the optical axis direction.
7. endoscope apparatus according to claim 5, wherein,
The moving lens maintaining part include longer strip part on the optical axis direction chimeric with the Part II,
And from the strip part ledge prominent to the direction orthogonal with the optical axis direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-087612 | 2013-04-18 | ||
| JP2013087612 | 2013-04-18 | ||
| JP2014032958A JP5865928B2 (en) | 2013-04-18 | 2014-02-24 | Endoscope device |
| JP2014-032958 | 2014-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104111526A CN104111526A (en) | 2014-10-22 |
| CN104111526B true CN104111526B (en) | 2017-09-05 |
Family
ID=51708369
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410148017.1A Active CN104111526B (en) | 2013-04-18 | 2014-04-14 | Endoscope apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3222196A4 (en) * | 2015-03-17 | 2018-08-29 | Olympus Corporation | Imaging unit and endoscope |
| WO2017010128A1 (en) * | 2015-07-15 | 2017-01-19 | オリンパス株式会社 | Drive force transmission mechanism for medical device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000121957A (en) * | 1998-10-16 | 2000-04-28 | Fuji Photo Optical Co Ltd | Endoscope device having motor |
| JP2000171727A (en) * | 1998-12-03 | 2000-06-23 | Fuji Photo Optical Co Ltd | Endoscopic device |
| JP2000221415A (en) * | 1999-02-01 | 2000-08-11 | Toshiba Corp | Endoscope device |
| JP2003302565A (en) * | 2002-04-10 | 2003-10-24 | Olympus Optical Co Ltd | Optical device |
| CN103027660A (en) * | 2011-09-30 | 2013-04-10 | 富士胶片株式会社 | Lens unit and camera module for endoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2939209B1 (en) * | 2008-12-02 | 2011-02-11 | Tokendo | RIGID VIDEOENDOSCOPE WITH REFERENCED VIEW AND ADJUSTABLE FOCUS |
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- 2014-04-14 CN CN201410148017.1A patent/CN104111526B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000121957A (en) * | 1998-10-16 | 2000-04-28 | Fuji Photo Optical Co Ltd | Endoscope device having motor |
| JP2000171727A (en) * | 1998-12-03 | 2000-06-23 | Fuji Photo Optical Co Ltd | Endoscopic device |
| JP2000221415A (en) * | 1999-02-01 | 2000-08-11 | Toshiba Corp | Endoscope device |
| JP2003302565A (en) * | 2002-04-10 | 2003-10-24 | Olympus Optical Co Ltd | Optical device |
| CN103027660A (en) * | 2011-09-30 | 2013-04-10 | 富士胶片株式会社 | Lens unit and camera module for endoscope |
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| CN104111526A (en) | 2014-10-22 |
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