CN1080061A - Mechanism for adjusting of binocular - Google Patents
Mechanism for adjusting of binocular Download PDFInfo
- Publication number
- CN1080061A CN1080061A CN93107198A CN93107198A CN1080061A CN 1080061 A CN1080061 A CN 1080061A CN 93107198 A CN93107198 A CN 93107198A CN 93107198 A CN93107198 A CN 93107198A CN 1080061 A CN1080061 A CN 1080061A
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- China
- Prior art keywords
- mentioned
- frame
- eyepiece
- cam ring
- optical axis
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- Granted
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
- G02B23/18—Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
- Lenses (AREA)
Abstract
The objective of the invention is to limit cam ring moves and don't increases the number of parts and do not produce loosening along optical axis direction.On the cam ring 2 that is inserted in eyepiece frame 1 outside, form the mobile protuberance 2c of restriction that side direction protrudes in it, on the outer circumferential side of eyepiece frame 1, be formed with the ring groove 1c that engagement limits moves protuberance 2c around optical axis, on the part of ring groove 1c, form breach 1e simultaneously, if cam ring 2 is moved along optical axis direction, then limits mobile protuberance 2c and from ring groove 1c, deviate from by this breach 1e.
Description
The present invention relates to optical instrument and mechanism for adjusting of binocular, this mechanism utilizes rotates the method that is formed with the cam ring of spiral fashion cam path on it, the protuberance that is arranged on the lens frame is moved along cam path, thereby the lens of settling in lens frame and the frame are moved along optical axis direction.
Eyepiece part for telestereoscope, the cam ring that is arranged on the eyepiece frame periphery is rotated, make cam screw move along the spiral fashion cam path that forms on this cam ring, like this, the eyepiece lens that is connected the eyepiece frame on the cam screw and is placed in wherein just relatively moves with respect to object lens, proofreaies and correct thereby carry out diopter.
, cam ring must design to such an extent that cam screw can move at optical axis direction with respect to this cam ring, and cam ring can only rotate and can not move along optical axis direction with respect to eyepiece frame.
As the technology that the restriction cam ring that has earlier moves along optical axis direction, Fig. 6 illustration a kind of technical scheme.
This technology is at optical axis direction restriction cam ring 2A, on eyepiece frame 1A, form locating surface 1Aa on the one hand, the end face 2Aa of cam ring 2A one end is contacted with this locating surface to be limited, on the other hand, on the end of eyepiece frame 1A, form pin thread 1Ab, the ring 14 that presses solidly that is formed with on it with the female screw of this pin thread engagement is screwed on the end of eyepiece frame 1A, the end face of the other end of cam ring 2A is pressed solidly with this encircle 14 and contact and limit.In addition, press solidly ring 14 and come off, be provided with the screw 15 that stop is used pressing solidly on the ring 14 from eyepiece frame 1A in order to prevent this.But this technology only moves along optical axis direction in order to limit cam ring 2A, just must increase to press solidly ring 14 and screw 15, has therefore increased part count, has increased the assembly working amount.
As the technology that reduces part count slightly, Fig. 7 and technical scheme shown in Figure 8 have been proposed.
This technology is at optical axis direction restriction cam ring 2B, on the one hand, identical with above-mentioned technology, utilizing the end face 2Ba of the end of cam ring 2B to contact with locating surface 1Ba on the eyepiece frame 1B limits, on the other hand, on the periphery of eyepiece frame 1B, form ring groove 1Bc, annular slab shown in Figure 8 16 is embedded into this ring groove from outer circumferential side, utilize the end face of the cam ring 2B other end to contact and limit with this annular slab 16.
But, for this prior art, for ease of assembling, with respect to the width of the groove 1Bc that on the eyepiece frame periphery, forms, limit moving of cam ring 2B though be embedded in the thickness of the annular slab 16 in this groove, can not do very thickly, therefore produced and become flexible, although very little.This becoming flexible bringing into use Shi Buhui to constitute special problem, but uses for a long time, and this loosening increase diopter just takes place proofreaies and correct the problem that can't reappear.
The objective of the invention is to, be conceived to overcome the problem that exists in this prior art, provide a kind of cam ring that can limit, neither increase part count, do not become flexible again at telestereoscope diopter aligning gear and optical instrument that optical axis direction moves.
For the telestereoscope diopter aligning gear of realizing above-mentioned purpose, in the eyepiece frame on being fixed in main body, the lens frame that eyepiece is installed is configured to and can moves at optical axis direction, simultaneously, the cam ring that will be formed with the spirality cam path is sleeved on the periphery of above-mentioned eyepiece frame rotationally, to cooperate the protuberance of this cam path to be arranged on the said lens frame, rotate above-mentioned cam ring, the said lens frame is moved along optical axis direction, above-mentioned telestereoscope diopter aligning gear is characterised in that: form the protuberance that the outstanding restriction of side direction is moved in it on above-mentioned cam ring, on the outer circumferential side of above-mentioned eyepiece frame, form the ring groove that cooperates with the mobile protuberance of above-mentioned restriction around optical axis, simultaneously, on the part of this ring groove, form breach, by above-mentioned cam ring is moved along above-mentioned optical axis direction, the mobile protuberance of above-mentioned restriction can be deviate from from above-mentioned ring groove by this breach.
Therefore, in this telestereoscope diopter aligning gear, gratifying is to form the restriction moving part on the outer circumferential side of above-mentioned eyepiece frame, and this restriction moving part contacts by the end face with above-mentioned cam ring one end and limits this cam ring and move along a direction of above-mentioned optical axis direction.
In addition, for the optical instrument of realizing above-mentioned purpose, in the objective lens frame of eyepiece lens frame that eyepiece is installed and installation object lens, at least make wherein a kind of lens frame be configured to and to move along optical axis direction, simultaneously, the cam ring that will be formed with the spirality cam path is arranged on the main body side parts of outer circumferential side of lens frame of this frame rotationally, and the protuberance that setting cooperates with above-mentioned cam path on the lens frame of this frame, rotate this cam ring, the lens frame of this frame is moved along optical axis direction, thereby change the relative distance between eyepiece and the object lens, this optical instrument is characterised in that: on above-mentioned cam ring, formation is to the outstanding mobile protuberance of restriction of its radial direction, on the aforementioned body side component, form the ring groove that cooperates the mobile protuberance of above-mentioned restriction around optical axis, simultaneously form breach on the part of this ring groove, move along above-mentioned optical axis direction by making cam ring, the mobile protuberance of above-mentioned restriction can be deviate from from above-mentioned ring groove by this breach.
The mobile protuberance of the restriction of cam ring is entered into ring groove and cam ring is rotated from the breach of eyepiece frame, then limit mobile teat and just be engaged in the ring groove, and cam ring is inserted be attached on the eyepiece frame.So, if the rotating cam ring, then since the mobile protuberance of restriction be engaged in the ring groove, even thereby limit the thickness of mobile protuberance and the width of ring groove is identical, also can with comparalive ease ring be waited to be embedded in the ring groove, it is installed from the outside.
Because the mobile protuberance of the restriction of cam ring is matched with in the ring groove of eyepiece frame, thus cam ring is rotated, but it is moved along optical axis direction.
In addition, because on the outer circumferential side of eyepiece frame, be formed with the restriction moving part, and limit cam ring with this restriction moving part and move to a direction of optical axis direction, thereby on the ring groove of mobile protuberance of the restriction of cam ring and eyepiece frame, it is had to limit the function that cam ring moves to another direction of optical axis direction.Like this, even the width of the ring groove of eyepiece frame is done greatlyyer than the thickness of the mobile protuberance of restriction of cam ring, also can limit along the moving of optical axis direction, because like this, so assembling is than being easier to.
If employing the present invention need not increase part count, just can utilize moving along optical axis direction at mobile protuberance of the restriction that forms on the cam ring and the ring groove that on eyepiece frame, forms restriction cam ring.
In addition, even the width of the thickness of the mobile protuberance of restriction of cam ring and the ring groove of eyepiece frame is substantially the same, also the breach of the mobile protuberance of the restriction of cam ring from eyepiece frame can be slipped into the ring groove, the rotating cam ring, make the mobile protuberance of restriction directly be matched with on the ring groove, cam ring can be inserted on the eyepiece frame,, and not become flexible so assembling easily.
Accompanying drawing is simply described as follows:
Fig. 1 is the sectional drawing of the telestereoscope eyepiece part of one embodiment of the invention.
Fig. 2 is the sectional drawing of the eyepiece frame of one embodiment of the invention.
Fig. 3 is the sectional drawing of the cam ring of one embodiment of the invention.
Fig. 4 is the cam ring before the plug-in mounting cam ring of one embodiment of the invention and the oblique view of eyepiece frame.
Fig. 5 is the cam ring after the plug-in mounting cam ring of one embodiment of the invention and the oblique view of eyepiece frame.
Fig. 6 is the sectional drawing that telestereoscope eyepiece part is arranged earlier.
Fig. 7 is other telestereoscope eyepiece sectional drawing partly that has earlier.
Fig. 8 is the oblique view of the annular slab of other telestereoscope of having earlier.
Fig. 9 is the vertical view of general telestereoscope.
In these figure, the 1st, eyepiece frame; 1a is the mobile protuberance of restriction; 1b is a slotted hole; 1c is a ring groove; 1e is a breach; The 2nd, cam ring; 2a is the end of an end; 2b is a cam path; 2c is the mobile protuberance of restriction; The 3rd, the outer circumferential side lens frame; The 4th, cam screw; The 5th, the mirror body; The 6th, mirror body protection rubber parts; The 8th, connect the order rubber parts; The 9th, interior all side lens frame; The 11st, eyepiece.
Below in conjunction with description of drawings one embodiment of the present of invention.
For centre focus formula telestereoscope shown in Figure 9, in order to adapt to the difference of user left and right sides eyesight, generally an eyepiece partly is provided with the diopter aligning gear.
The diopter aligning gear of present embodiment as shown in Figure 1, by be fixedly installed on eyepiece frame 1 on the mirror body 5, install eyepiece 11,11 and 11 lens frame 3 and 9, form on it spirality cam path 2b cam ring 2, be screwed into outer circumferential side lens frame 3 and the cam screw 4 that cooperates with cam path 2b is formed.
On the cam ring 2 that is inserted on eyepiece frame 1 periphery, form as shown in Figure 3 and Figure 4 cam path 2b and the outstanding mobile protuberance 2c of restriction, the 2c of the inside Zhou Fangxiang on the other end end of cam ring 2 with respect to the optical axis spirality.
On eyepiece frame 1, as Fig. 2 and shown in Figure 4, the slotted hole 1b of the same length of stroke of formation and outer circumferential side lens frame 3, this slotted hole is positioned at the direction that is parallel to optical axis.In addition, on eyepiece frame 1, form around the ring groove 1c of optical axis and the mobile protuberance 1a of restriction of annular, this ring groove 1c cooperates with the mobile protuberance 2c of the restriction of cam ring 2,2c, this limits mobile protuberance 1a and contacts with the end face 2a of an end of cam ring 2, thereby restriction cam ring 2 forwards moves.The width of ring groove 1c is done more slightly biggerly than the thickness of the mobile protuberance 2c of the restriction that cooperates with this groove, the 2c of cam ring 2.Part at ring groove 1c forms breach 1e, makes that the mobile protuberance 2c of the restriction of cam ring 2 just deviates from from this ring groove 1c by breach when making this ring groove when a direction of optical axis is promptly rearward mobile.In addition, in each figure,, only show a breach 1e for ease of understanding its structure, in fact, with the mobile protuberance 2c of restriction, position that 2c is corresponding, formed and the same number of breach 1e of this protuberance.
The below assembling of explanation diopter aligning gear part.
At first, as shown in Figure 1, eyepiece frame 1 is inserted in the mirror body 5, and is fixed with eyepiece frame mounting screw 7.The outer circumferential side lens frame 3 that will embed eyepiece 11,11,11 and interior all side lens frame 9 is then inserted in the eyepiece frame 1.Subsequently, as Fig. 4 and shown in Figure 5, partly pack the mobile protuberance 2c of the restriction of cam ring 2 into ring groove 1c from the otch 1e of eyepiece frame 1 in, thereby cam ring 2 is inserted on the eyepiece frame 1.After being inserted in cam ring 2 on the eyepiece frame 1, making cam screw 4 pass the cam path 2b of cam ring 1 and the slotted hole 1b of eyepiece frame 1, and it is screwed on the outer circumferential side lens frame 3.
The diopter aligning gear is by after installing as mentioned above, as shown in Figure 1, with mirror body protection rubber parts 6, connect order rubber parts 8 and install, so just finished the assembling of telestereoscope.
The following describes the effect of the diopter aligning gear of present embodiment.
After utilizing centre focus mechanism rough alignment focus, make to connect order rubber parts 8 and cam ring 2 rotates together.Because the end face 2a of an end of cam ring 2 and the mobile protuberance 1a of restriction of eyepiece frame 1 contact, so limited cam ring 2 moving of direction forwards; And, limited cam ring 2 moving of direction rearward again because the mobile protuberance 2c of restriction of cam ring 2 contacts with the side 1d on one side of ring groove 1c.Therefore, cam ring 2 can not move along optical axis direction, can only rotate on optical axis.
Because the rotation of this cam ring 2, cam screw 4 just moves along spiral cam path 2b, thereby the outer circumferential side lens frame 3 that is screwed into cam screw 4 moves along optical axis direction.
As mentioned above, in the present embodiment, the end face 2a of mobile protuberance 2c of the restriction that utilization forms on cam ring 2 and one end, and the ring groove 1c that on eyepiece frame 1, forms and limit mobile protuberance 1a, just can limit cam ring 2 along the moving of optical axis direction, thereby need not increase part count fully and just limited moving of cam ring 2.
In addition, in the present embodiment, because the width of ring groove 1c is bigger than the thickness of the mobile protuberance 2c of the restriction of cam ring 2, so can easily cam ring 2 be inserted on the eyepiece frame 1, can also guarantee simultaneously to limit moving of cam ring 2, thereby this part structure can not become flexible.
In the present embodiment, though utilize end face 2a and the contacting of the mobile protuberance 1a of the restriction of eyepiece frame 1 of an end of cam ring 2 to realize restriction cam ring 2 moving forwards, also can utilize the ring groove 1c of the mobile protuberance 2c of restriction of cam ring 2 and eyepiece frame 1 to realize limiting cam ring 2 direction mobile forwards, backwards.At this moment, though the width of the thickness of the mobile protuberance 2c of the restriction of cam ring 2 and the ring groove 1c of eyepiece frame 1 must have identical size basically, but, the mobile protuberance 2c of restriction is slipped in the ring groove 1c from breach 1e, make its rotation then, mobile protuberance 2c of restriction and ring groove 1c are cooperated, thereby increased the easiness of assembling, breakage can not take place.
In the present embodiment, to above structure is illustrated as mechanism for adjusting of binocular, but the invention is not restricted to this embodiment, for device or the equipment that mobile object lens or eyepiece are focused, self-evident can be with above structure.
Claims (6)
1, a kind of telestereoscope diopter aligning gear, in this mechanism, in the eyepiece frame on being fixed in main body, the lens frame that eyepiece is installed is configured to and can moves along optical axis direction, the cam ring that will be formed with the spirality cam path simultaneously is inserted on the periphery of above-mentioned eyepiece frame rotationally, the protuberance that will cooperate with this cam path is arranged on the above-mentioned lens frame, utilize the rotation of above-mentioned cam ring, this lens frame is moved along optical axis direction, it is characterized in that: on above-mentioned cam ring, be formed with outstanding mobile protuberance of restriction of side direction in it, on the outer circumferential side of above-mentioned eyepiece frame, be formed with the ring groove that cooperates the mobile protuberance of above-mentioned restriction around optical axis, simultaneously, on the part of ring groove, form breach, by above-mentioned cam ring is moved along above-mentioned optical axis direction, the mobile protuberance of then above-mentioned restriction is just deviate from from above-mentioned ring groove.
2, a kind of telestereoscope diopter aligning gear as claimed in claim 1, it is characterized in that, be formed with on the outer circumferential side of above-mentioned eyepiece frame contact with the end of above-mentioned cam ring one end and limit this cam ring restriction moving part that direction moves in above-mentioned optical axis direction.
3, a kind of optical instrument, in this instrument, in the objective lens frame of eyepiece lens frame that eyepiece is installed and installation object lens, be configured to have at least a lens frame to move along the direction of optical axis, simultaneously, the cam ring that will be formed with the spirality cam path is arranged on the main body side parts of outer circumferential side of lens frame of this frame rotationally, and the protuberance that cooperates above-mentioned cam path is set on the lens frame of this frame, rotating above-mentioned cam ring just can make the lens frame of this frame move along optical axis direction, thereby can change the relative distance between above-mentioned eyepiece and the above-mentioned object lens, it is characterized in that: on above-mentioned cam ring, form to the outstanding mobile protuberance of restriction of its radial direction, on the aforementioned body side component, be formed with the ring groove that cooperates the mobile protuberance of above-mentioned restriction around optical axis, simultaneously, on the part of this ring groove, form breach, can move along above-mentioned optical axis direction by making above-mentioned cam ring, the mobile teat of then above-mentioned restriction is just deviate from from above-mentioned ring groove by this breach.
4, a kind of diopter aligning gear is characterized in that: this mechanism is made of the lens frame of tubular, the eyepiece frame of tubular and the cam ring of tubular; The lens frame of tubular is installed eyepiece in inside, and have outside surface and approximately perpendicular to the direction of above-mentioned eyepiece optical axis from the outstanding cam screw of above-mentioned outside surface; Above-mentioned tubular eyepiece frame is arranged to surround the state of said lens frame, has inside surface with the outside surface sliding contact of said lens frame, can be fixed on an end on the lens barrel main body, outside surface, the slotted hole that is arranged on the ring groove along the circumferential direction on the above-mentioned outside surface of the other end and extends in parallel with above-mentioned eyepiece optical axis in the said lens frame, because the above-mentioned cam screw of said lens frame connects above-mentioned slotted hole, thereby above-mentioned lens frame can be allowed to relatively move along the direction of above-mentioned optical axis, but above-mentioned lens frame is under an embargo and relatively rotates around above-mentioned optical axis; Above-mentioned tubular cam ring is around the outside configuration of above-mentioned eyepiece frame, has inside surface with the outside surface sliding contact of above-mentioned eyepiece frame, mobile protuberance of restriction and spiral cam path from above-mentioned inside surface along radial direction in the above-mentioned ring groove that is inwardly outstanding and that be in above-mentioned eyepiece frame, because the mobile protuberance of above-mentioned restriction cooperates with the above-mentioned ring groove of above-mentioned eyepiece frame, therefore above-mentioned cam ring is under an embargo and relatively moves along above-mentioned optical axis direction, but cam ring is allowed to relatively rotate around optical axis, because above-mentioned cam screw is embedded in the above-mentioned cam path, thereby along with the rotation of above-mentioned cam ring, the said lens frame just relatively moves along above-mentioned optical axis direction.
5, a kind of diopter aligning gear as claimed in claim 4, it is characterized in that: above-mentioned eyepiece frame has the otch in above-mentioned end face upper shed, opening extends to the end face of above-mentioned the other end from above-mentioned ring groove, when being fitted to above-mentioned cam ring on the above-mentioned eyepiece frame, because the mobile protuberance of above-mentioned restriction and the above-mentioned notch of above-mentioned cam ring are aligned, so above-mentioned cam ring can be allowed to relatively move along above-mentioned optical axis direction with respect to above-mentioned eyepiece frame, and the mobile protuberance of above-mentioned restriction is inserted in the above-mentioned ring groove.
6, as claim 4 or 5 described telestereoscope diopter aligning gears, it is characterized in that: on the above-mentioned outside surface of above-mentioned eyepiece frame, form contacted and limit this cam ring restriction moving part that direction moves in above-mentioned optical axis direction with the end of an end of above-mentioned cam ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP042059U JPH062328U (en) | 1992-06-18 | 1992-06-18 | Binocular diopter correction mechanism |
| JP042059/92 | 1992-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080061A true CN1080061A (en) | 1993-12-29 |
| CN1038533C CN1038533C (en) | 1998-05-27 |
Family
ID=12625534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93107198A Expired - Lifetime CN1038533C (en) | 1992-06-18 | 1993-06-17 | Mechanism for adjusting of binocular |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH062328U (en) |
| KR (1) | KR100293605B1 (en) |
| CN (1) | CN1038533C (en) |
| TW (1) | TW232054B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548874B (en) * | 2004-07-05 | 2011-02-09 | 奥林巴斯医疗株式会社 | Electronic endoscope |
| US9007449B2 (en) | 2004-07-05 | 2015-04-14 | Olympus Medical Systems Corp. | Electronic endoscope |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4540802B2 (en) * | 2000-05-26 | 2010-09-08 | オリンパス株式会社 | Cam ring and cam ring manufacturing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080042A (en) * | 1972-07-06 | 1978-03-21 | Carl Zeiss-Stiftung | Collapsible binocular telescope with adjustable internal focusing |
| JPS6188215A (en) * | 1984-10-06 | 1986-05-06 | Fuji Photo Optical Co Ltd | Optical device |
| JP2691562B2 (en) * | 1988-06-03 | 1997-12-17 | 旭光学工業株式会社 | Lens barrel |
| JPH0227108A (en) * | 1988-07-11 | 1990-01-29 | Nafuzato Gmbh | Device for separating soot from exhaust gas flow of internal combustion engine |
-
1992
- 1992-06-18 JP JP042059U patent/JPH062328U/en active Pending
-
1993
- 1993-05-07 TW TW082103559A patent/TW232054B/en not_active IP Right Cessation
- 1993-06-01 KR KR1019930009771A patent/KR100293605B1/en not_active IP Right Cessation
- 1993-06-17 CN CN93107198A patent/CN1038533C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548874B (en) * | 2004-07-05 | 2011-02-09 | 奥林巴斯医疗株式会社 | Electronic endoscope |
| US9007449B2 (en) | 2004-07-05 | 2015-04-14 | Olympus Medical Systems Corp. | Electronic endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| TW232054B (en) | 1994-10-11 |
| CN1038533C (en) | 1998-05-27 |
| JPH062328U (en) | 1994-01-14 |
| KR100293605B1 (en) | 2001-09-17 |
| KR940001490A (en) | 1994-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130617 Granted publication date: 19980527 |