CN204158362U - For the auxiliary tune dioptric road of imaging optical path in fundus camera - Google Patents
For the auxiliary tune dioptric road of imaging optical path in fundus camera Download PDFInfo
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- CN204158362U CN204158362U CN201420600579.0U CN201420600579U CN204158362U CN 204158362 U CN204158362 U CN 204158362U CN 201420600579 U CN201420600579 U CN 201420600579U CN 204158362 U CN204158362 U CN 204158362U
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- dioptric
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Abstract
This utility model relates to a kind of auxiliary tune dioptric road for imaging optical path in fundus camera, comprises auxiliary tune and bends imaging Zhi Guanglu, the first optical module and fundus imaging light path; The auxiliary dual-beam of bending imaging Zhi Guanglu generation of adjusting is incident to perforate reflecting mirror after the first optical module, and the dual-beam after reflection is incident to human eye optical fundus more successively after connecing order object lens; Dual-beam, after the scattering of optical fundus, projects described picture pick-up device after connecing order object lens, perforate diaphragm, adjusting mirror in the wrong and imaging lens; System interlink controls described tune and bends mirror and imaging Zhi Guanglu bent in described auxiliary tune, makes display screen show two hot spots coincided together generated by dual-beam, makes picture pick-up device and transmission region and optical fundus conjugation between two.Optical element selected by this utility model is with low cost, also to take pictures figure to the infrared preview image in optical fundus and optical fundus flash lamp clearly according to auxiliary tune dioptric rood simultaneously.
Description
Technical field
This utility model relates to fundus camera field, refers more particularly to a kind of auxiliary tune dioptric road for imaging optical path in fundus camera.
Background technology
Need the diopter according to the tested human eye of difference in fundus camera work process, carry out camera system at the bottom of reliever and regulate imaging optical path, make to obtain eye fundus image more clearly.And in adjustment fundus camera process, doctor is often according to the infrared preview image in the optical fundus of tested human eye in operation, carry out auxiliary adjustment fundus camera.When taking pictures, fundus camera system can be switched to flash lamp exposal model instantaneously, obtains optical fundus color picture.But the light energy of the lighting source of the infrared preview in optical fundus is more weak, if because of infrared preview light source too strong, tested person's eye contracted pupil can be made, and impact is taken pictures; If infrared preview light source is too weak, whether cannot be transferred to the most clear by the eye fundus image that judges of fuzzy infrared preview, so often causes erroneous judgement, and when causing flash lamp to be taken pictures, the most clear optical fundus figure cannot be obtained.
In addition, in prior art, also have and utilize the corner cube prism of different angles to bend aligning to the tune realizing the imaging optical path of fundus camera, but the processing technique of the corner cube prism of different angles requires higher, to realize symmetric design completely, processing regulates difficulty comparatively large, and cost is also high.
Utility model content
This utility model provides a kind of auxiliary tune dioptric road for imaging optical path in fundus camera, its object is to solve at fundus camera in adjustment process, cannot judge whether eye fundus image is adjusted to state thus the problem that cannot obtain eye fundus image the most clearly caused the most clearly according to infrared preview.
The technical solution of the utility model is such:
For an auxiliary tune dioptric road for imaging optical path in fundus camera, comprise auxiliary tune and bend imaging Zhi Guanglu, the first optical module and fundus imaging light path; Described fundus imaging light path comprises successively: connect order object lens, be embedded with the perforate reflecting mirror of perforate diaphragm, adjust and bend mirror, imaging lens and picture pick-up device; Described auxiliary tune is bent imaging Zhi Guanglu and is comprised the auxiliary shading coating adjusting dioptric road plate glass and painting to be plated in the upper surface of described auxiliary tune dioptric road plate glass, and described shading coating central authorities leave the transmission region of uncoated; The dual-beam that imaging Zhi Guanglu formation bent in described auxiliary tune is incident to described perforate reflecting mirror after described transmission region and described first optical module, order objective lens entrance is connect to human eye optical fundus described in dual-beam warp after reflection, after the scattering of optical fundus, more successively through described in connect order object lens, described perforate diaphragm, described tune project described picture pick-up device after bending mirror and described imaging lens; System interlink controls described tune and bends mirror and imaging Zhi Guanglu bent in described auxiliary tune, display screen is made to show two hot spots coincided together generated by dual-beam, make picture pick-up device and transmission region and optical fundus conjugation between two, thus obtain the infrared preview image in optical fundus clearly and optical fundus flash lamp and to take pictures figure.
Further: described auxiliary tune is bent imaging Zhi Guanglu and also comprised: dual-beam generating apparatus, auxiliary tune dioptric road first lens and corner cube prism; The dual-beam that described dual-beam generating apparatus generates injects described corner cube prism through described auxiliary tune dioptric road first lens, and described corner cube prism is by described dual beam reflection extremely described auxiliary tune dioptric road plate glass.
Further: described dual-beam generating apparatus comprises successively: assist and adjust dioptric source, auxiliary tune dioptric road collecting lens, pinhole diaphragm, auxiliary tune dioptric road second lens, diplopore diaphragm; The light that described auxiliary tune dioptric source sends converges at the pin hole place of described pinhole diaphragm through described auxiliary tune dioptric road collecting lens, then after described auxiliary tune dioptric road second lens and described diplopore diaphragm, becomes described dual-beam.
Further: described fundus camera also comprises illumination path, the infrared light that the infrared preview lighting source of described illumination path sends is incident to described perforate reflecting mirror successively again after lighting source dichroic mirror after the second optical module, described auxiliary tune dioptric road plate glass and described first optical module, connects order object lens and be incident to human eye optical fundus through described perforate reflecting mirror described in reflexing to; Or the optical fundus flash lamp of described illumination path light source of taking pictures is incident to described perforate reflecting mirror successively after described second optical module and described first optical module, connects order object lens and be incident to human eye optical fundus through described perforate reflecting mirror described in reflexing to.
Further: described first optical module comprises and setting gradually: stain plate, illumination path first lens and illumination diaphragm; Described illumination diaphragm is arranged near described perforate reflecting mirror.
Further: described second optical module comprises and setting gradually: illumination path second lens, diffusing panel, bright dipping diaphragm, about beam diaphragm and illumination path the 3rd lens; Described illumination path second lens are arranged near described lighting source spectroscope.
Useful technique effect of the present utility model: control the imaging Zhi Guanglu integral translation in the wrong of auxiliary tune and regulate to adjust to bend lens by system interlink, make to be arranged on auxiliary adjust the shading coating of plate glass upper surface, dioptric road transmission region, human eye optical fundus and picture pick-up device conjugation between two, finally obtain the infrared preview image in optical fundus and optical fundus flash lamp the most clearly and to take pictures figure.Another advantage of the present utility model assists to adjust the optical element cost on dioptric road lower, and in auxiliary tune dioptric road, diplopore diaphragm instead of processing and assembles the corner cube prism of equal more complicated, while function bent in the auxiliary tune of realization, also save cost.
Accompanying drawing explanation
Fig. 1 is the total index path of this utility model;
Fig. 2 is that the master that in Fig. 1, imaging Zhi Guanglu 300 bent in auxiliary tune looks detail drawing;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the B place amplification view of Fig. 2;
Fig. 5 is that the auxiliary light path of bending imaging Zhi Guanglu 300 of adjusting moves towards schematic diagram.
In figure, the title of each part sequence number and correspondence is respectively:
E, human eye
Er, human eye optical fundus
101, optical fundus flash lamp is taken pictures light source
102, the infrared preview lighting source in optical fundus
103, lighting source spectroscope;
10A, the second optical module
104, illumination path second lens
105, diffusing panel
106, bright dipping diaphragm
107, about beam diaphragm
108, illumination path the 3rd lens;
10, the first optical module
109, stain plate
110, illumination path first lens
111, throw light on diaphragm;
200, fundus imaging light path
201, order object lens are connect
202, perforate reflecting mirror
203, perforate diaphragm
204, lens in the wrong are adjusted
205, imaging len
206, picture pick-up device;
300, auxiliary tune bends imaging Zhi Guanglu;
300A, dual-beam generating apparatus
301, auxiliary tune dioptric source
302, auxiliary tune dioptric road collecting lens
303, pinhole diaphragm
304, auxiliary tune dioptric road second lens
305, diplopore diaphragm
306, auxiliary tune dioptric road first lens
307, corner cube prism
308, auxiliary tune dioptric road plate glass
309, shading coating
310, transmission region
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
With reference to figure 1, in this utility model, said auxiliary tune dioptric road comprises auxiliary tune imaging Zhi Guanglu 300, first optical module 10 in the wrong and fundus imaging light path 200.Wherein, fundus imaging light path 200 comprises successively and connects order object lens 201, is embedded with the perforate reflecting mirror 202 of perforate diaphragm 203, adjusts and bend mirror 204 and picture pick-up device 206.The perforate reflecting mirror 202 being embedded with perforate diaphragm 203 mentioned here, refers to and be placed with perforate diaphragm 203 in the perforate of perforate reflecting mirror 202, and the object done like this makes imaging illuminance of image plane symmetrical.With reference to figure 2 and Fig. 4, auxiliary tune is bent imaging Zhi Guanglu 300 and is comprised: be arranged on the auxiliary tune dioptric road plate glass 308 below the first optical module 10, its upper surface is coated with shading coating 309.The transmission region 310 of non-coating is left at the middle section of shading coating 309.The auxiliary dual-beam of bending imaging Zhi Guanglu 300 generation of adjusting is through after the auxiliary transmission region 310 adjusted on dioptric road plate glass 308, perforate reflecting mirror 202 is incident to through the first optical module 10, then by the reflection of perforate reflecting mirror 202, after connecing order object lens 201 and human eye, be incident to human eye optical fundus Er.Through human eye optical fundus, Er scattering returns dual-beam, after connecing order object lens 201, perforate diaphragm 203, adjusting mirror 204 in the wrong and imaging len 205, project picture pick-up device 206.Under the coordinated signals of system, mirror 204 is bent by assisting to adjust to bend the overall upper and lower translation of imaging Zhi Guanglu 300 and regulate to adjust, transmission region 310 and picture pick-up device 206 is made to remain conjugation, display screen (not shown) shows two hot spots coincided together generated by dual-beam, makes picture pick-up device 206 and transmission region 310 and optical fundus conjugation between two.Meeting under above-mentioned conjugate condition, fundus camera obtains the infrared preview image in optical fundus clearly or optical fundus flash lamp and to take pictures figure, solves and cannot judge according to infrared preview the problem that cannot obtain eye fundus image the most clearly whether eye fundus image is adjusted to state the most clearly and causes.With reference to figure 5, the conjugated image surface Er ' on human eye optical fundus refers to human eye optical fundus Er through eye optical system and the imaging surface connecing order object lens 201 imaging.If the conjugated image surface Er ' of tested human eye optical fundus Er and transmission region 310 not conjugation, then conjugated image surface Er ' and picture pick-up device 206 also not conjugation, two hot spots that the picture pick-up device 206 of the upper display of display screen (not shown) photographs are in separated position, therefore cannot obtain the infrared preview graph in optical fundus and optical fundus flash lamp clearly and to take pictures figure.Now need to be assisted by upward-downward translation to adjust whole optical element of imaging Zhi Guanglu 300 in the wrong and regulate the hot spot coincidence of bending mirror 204 (namely the coordinated signals of said system) and making above-mentioned two to separate, at this moment just can judge transmission region 310 and human eye optical fundus conjugated image surface conjugation, also just with human eye optical fundus Er conjugation.It should be noted that, system, by coordinated signals, remains picture pick-up device 206 and shading thin plate 310 conjugation.That is, picture pick-up device 206 and transmission region 310 conjugation by the impact of conjugated image surface Er ' and the transmission region 310 whether conjugation of tested human eye optical fundus Er, also by the impact of conjugated image surface Er ' and picture pick-up device 206 whether conjugation.
With reference to figure 2, Fig. 3, auxiliary tune is bent imaging Zhi Guanglu 300 and is also comprised: dual-beam generating apparatus 300A, auxiliary tune dioptric road first lens 306 and corner cube prism 307; The dual-beam that dual-beam generating apparatus 300A generates, successively after auxiliary tune dioptric road first lens 306 and corner cube prism 307, after corner cube prism 307 reflects, changes the direction of propagation, is incident to auxiliary tune dioptric road plate glass 308; Then, dual-beam by the transmission region 310 on shading coating 309, then is incident to perforate reflecting mirror 202. perforate reflecting mirror 202 and reflects the paths route after dual-beam and the paths route of one section of dual-beam described after perforate reflecting mirror 202 reflection is identical above after the first optical module 10.
Further, with reference to figure 2, as a kind of detailed description of the invention, dual-beam generating apparatus 300A comprises: assist and adjust dioptric source 301, auxiliary tune dioptric road collecting lens 302, pinhole diaphragm 303, auxiliary tune dioptric road second lens 304 and diplopore diaphragm 305.The auxiliary light adjusting dioptric source 301 to send is after auxiliary tune dioptric road collecting lens 302, beams converge is in the central pinhole place of pinhole diaphragm 303, then successively through pinhole diaphragm 303, auxiliary tune dioptric road second lens 304 and diplopore diaphragm 305, two independently light beams are become.Independently dual-beam is incident to auxiliary tune dioptric road first lens 306, and then is incident to corner cube prism 307, and remaining paths path is identical with the paths path of the dual-beam that the preceding paragraph describes after corner cube prism 307.
With reference to figure 1, as a kind of concrete embodiment, the first optical module 10 comprises successively: stain plate 109, illumination path first lens 110 and illumination diaphragm 111.Stain plate 109 is arranged near auxiliary dioptric road plate glass 308 of adjusting, and illumination diaphragm 111 is arranged near perforate reflecting mirror 202.Therefore, the dual-beam entered by transmission region 310 enters perforate reflecting mirror 202 again through stain plate 109, illumination path first lens 110 and illumination diaphragm 111 successively, and remaining round is identical with the round of previously described dual-beam after perforate reflecting mirror 202 reflects.
Fundus camera described in this utility model, also comprises illumination path, specifically please refer to Fig. 1.Illumination path comprises two kinds of situations.When being chosen as infrared preview, the infrared preview lighting source 102 in optical fundus is incident to perforate reflecting mirror 202 through the second optical module 10A, auxiliary dioptric road plate glass 308 and the first optical module 10 adjusted successively after the reflection of lighting source spectroscope 103, reflex to through perforate reflecting mirror 202 and connect order object lens 201, finally illuminate optical fundus, realize the infrared preview imaging on optical fundus.Now auxiliary dioptric road plate glass 308 of adjusting inserts illumination path.When optical fundus flash lamp take pictures light source 101 work time, the flash lamp white light flash of light that light source 101 sends of taking pictures in optical fundus is incident to perforate reflecting mirror 202 successively after the second optical module 10A, the first optical module 10, reflex to through perforate reflecting mirror 202 and connect order object lens 201, be then incident to human eye optical fundus.Now, auxiliary dioptric road plate glass 308 of adjusting detaches illumination path.Lighting source spectroscope 103 is according to saturating white light in addition, and during reflects infrared light design, this lighting source spectroscope 103 also still can be in light path when flash lamp is taken pictures.
As a kind of concrete embodiment, the second optical module 10A include set gradually illumination path second lens 104, diffusing panel 105, bright dipping diaphragm 106, about beam diaphragm 107 and illumination path the 3rd lens 108.Wherein, illumination path second lens 104 are arranged near lighting source spectroscope 103, and illumination path the 3rd lens 108 are arranged near corner cube prism 307.
When the illumination light of illumination path is optical fundus infrared preview lighting source 102, the infrared preview lighting source 102 in optical fundus needs reflection through lighting source spectroscope 103 more successively through the second optical module 10A, namely after illumination path second lens 104, diffusing panel 105, bright dipping diaphragm 106, about beam diaphragm 107 and illumination path the 3rd lens 108, then enter stain plate 109 through auxiliary dioptric road plate glass 308 of adjusting.When the illumination light of illumination path be optical fundus flash lamp take pictures light source 101 time, optical fundus flash lamp takes pictures light source 101 successively through the second optical module 10A, namely enter stain plate 109 through the second lens 104, diffusing panel 105, bright dipping diaphragm 106, about beam diaphragm 107 and illumination path the 3rd lens 108, now, light path withdrawn from by lighting source spectroscope 103 and auxiliary dioptric road plate glass 308 of adjusting.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. for an auxiliary tune dioptric road for imaging optical path in fundus camera, it is characterized in that: comprise auxiliary tune and bend imaging Zhi Guanglu, the first optical module and fundus imaging light path; Described fundus imaging light path comprises successively: connect order object lens, be embedded with the perforate reflecting mirror of perforate diaphragm, adjust and bend mirror, imaging lens and picture pick-up device; Described auxiliary tune is bent imaging Zhi Guanglu and is comprised the auxiliary shading coating adjusting dioptric road plate glass and painting to be plated in the upper surface of described auxiliary tune dioptric road plate glass, and described shading coating central authorities leave the transmission region of uncoated; The dual-beam that imaging Zhi Guanglu formation bent in described auxiliary tune is incident to described perforate reflecting mirror after described transmission region and described first optical module, order objective lens entrance is connect to human eye optical fundus described in dual-beam warp after reflection, after the scattering of optical fundus, more successively through described in connect order object lens, described perforate diaphragm, described tune project described picture pick-up device after bending mirror and described imaging lens; System interlink controls described tune and bends mirror and imaging Zhi Guanglu bent in described auxiliary tune, display screen is made to show two hot spots coincided together generated by dual-beam, picture pick-up device and transmission region and optical fundus conjugation between two, thus obtain the infrared preview image in optical fundus clearly and optical fundus flash lamp and to take pictures figure.
2. as claimed in claim 1 for the auxiliary tune dioptric road of imaging optical path in fundus camera, it is characterized in that: described auxiliary tune is bent imaging Zhi Guanglu and also comprised: dual-beam generating apparatus, auxiliary tune dioptric road first lens and corner cube prism; The dual-beam that described dual-beam generating apparatus generates injects described corner cube prism through described auxiliary tune dioptric road first lens, and described corner cube prism is by described dual beam reflection extremely described auxiliary tune dioptric road plate glass.
3. as claimed in claim 2 for the auxiliary tune dioptric road of imaging optical path in fundus camera, it is characterized in that: described dual-beam generating apparatus comprises successively: assist and adjust dioptric source, auxiliary tune dioptric road collecting lens, pinhole diaphragm, auxiliary tune dioptric road second lens, diplopore diaphragm; The light that described auxiliary tune dioptric source sends converges at the pin hole place of described pinhole diaphragm through described auxiliary tune dioptric road collecting lens, then after described auxiliary tune dioptric road second lens and described diplopore diaphragm, becomes described dual-beam.
4., as claimed any one in claims 1 to 3 for the auxiliary tune dioptric road of imaging optical path in fundus camera, it is characterized in that: described fundus camera also comprises illumination path,
The infrared light that the infrared preview lighting source of described illumination path sends is incident to described perforate reflecting mirror successively again after lighting source dichroic mirror after the second optical module, described auxiliary tune dioptric road plate glass and described first optical module, connects order object lens and be incident to human eye optical fundus through described perforate reflecting mirror described in reflexing to; Or the optical fundus flash lamp of described illumination path light source of taking pictures is incident to described perforate reflecting mirror successively after described second optical module and described first optical module, connects order object lens and be incident to human eye optical fundus through described perforate reflecting mirror described in reflexing to.
5. as claimed any one in claims 1 to 3 for the auxiliary tune dioptric road of imaging optical path in fundus camera, it is characterized in that: described first optical module comprises and setting gradually: stain plate, illumination path first lens and illumination diaphragm; Described illumination diaphragm is arranged near described perforate reflecting mirror.
6. as claimed in claim 4 for the auxiliary tune dioptric road of imaging optical path in fundus camera, to it is characterized in that: described second optical module comprises and setting gradually: illumination path second lens, diffusing panel, bright dipping diaphragm, about beam diaphragm and illumination path the 3rd lens; Described illumination path second lens are arranged near described lighting source spectroscope.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011898A (en) * | 2015-08-04 | 2015-11-04 | 深圳市斯尔顿科技有限公司 | Self-service type infrared eccentric photorefractor and self-service photorefraction method |
| CN105996978A (en) * | 2016-05-04 | 2016-10-12 | 深圳市斯尔顿科技有限公司 | Multi-color light scanning eye ground imaging device |
| CN110428410A (en) * | 2019-07-31 | 2019-11-08 | 腾讯医疗健康(深圳)有限公司 | Eyeground medical image processing method, device, equipment and storage medium |
| CN111419176A (en) * | 2020-06-10 | 2020-07-17 | 北京青燕祥云科技有限公司 | Fundus camera with image transmission function, fundus camera system and control method thereof |
| CN112472022A (en) * | 2020-12-10 | 2021-03-12 | 上海雄博精密仪器股份有限公司 | Optical structure of hand-held fundus camera |
| CN115113355A (en) * | 2022-06-30 | 2022-09-27 | 重庆贝奥新视野医疗设备有限公司 | Wide-angle fundus imaging system |
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2014
- 2014-10-16 CN CN201420600579.0U patent/CN204158362U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011898A (en) * | 2015-08-04 | 2015-11-04 | 深圳市斯尔顿科技有限公司 | Self-service type infrared eccentric photorefractor and self-service photorefraction method |
| CN105996978A (en) * | 2016-05-04 | 2016-10-12 | 深圳市斯尔顿科技有限公司 | Multi-color light scanning eye ground imaging device |
| CN110428410A (en) * | 2019-07-31 | 2019-11-08 | 腾讯医疗健康(深圳)有限公司 | Eyeground medical image processing method, device, equipment and storage medium |
| CN110428410B (en) * | 2019-07-31 | 2024-02-27 | 腾讯医疗健康(深圳)有限公司 | Fundus medical image processing method, device, equipment and storage medium |
| CN111419176A (en) * | 2020-06-10 | 2020-07-17 | 北京青燕祥云科技有限公司 | Fundus camera with image transmission function, fundus camera system and control method thereof |
| CN111419176B (en) * | 2020-06-10 | 2020-10-16 | 北京青燕祥云科技有限公司 | Fundus camera with image transmission function, fundus camera system and control method thereof |
| CN112472022A (en) * | 2020-12-10 | 2021-03-12 | 上海雄博精密仪器股份有限公司 | Optical structure of hand-held fundus camera |
| CN115113355A (en) * | 2022-06-30 | 2022-09-27 | 重庆贝奥新视野医疗设备有限公司 | Wide-angle fundus imaging system |
| CN115113355B (en) * | 2022-06-30 | 2024-04-09 | 重庆贝奥新视野医疗设备有限公司 | Wide-angle fundus imaging system |
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