CN104116493B - Human eye diopter rotary wedge mirror measuring device - Google Patents
Human eye diopter rotary wedge mirror measuring device Download PDFInfo
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- CN104116493B CN104116493B CN201410412822.0A CN201410412822A CN104116493B CN 104116493 B CN104116493 B CN 104116493B CN 201410412822 A CN201410412822 A CN 201410412822A CN 104116493 B CN104116493 B CN 104116493B
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- beam divider
- wedge
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- 239000003595 mist Substances 0.000 claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 14
- 238000005259 measurement Methods 0.000 abstract description 10
- 239000006185 dispersion Substances 0.000 abstract description 2
- 210000001508 eye Anatomy 0.000 description 20
- 239000003292 glue Substances 0.000 description 6
- 210000005252 bulbus oculi Anatomy 0.000 description 4
- 210000001747 pupil Anatomy 0.000 description 3
- 230000012447 hatching Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000002207 retinal effect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
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Abstract
The present invention relates to a kind of human eye diopter rotary wedge mirror measuring device, it comprises objective apparatus, monitors beam divider device, cloud and mist beam divider device, rotary wedge lens device, aperture prism apparatus and base plate, wherein, objective apparatus comprises object lens holder, lens barrel, object lens and wire ring; Monitor that beam divider device comprises monitor beam divider seat and monitor beam divider; Cloud and mist beam divider device comprises cloud and mist beam divider seat and cloud and mist beam divider; Aperture prism apparatus comprises aperture prism table, aperture prism, switching lenslet seat and switching lenslet; Rotary wedge lens device comprises rotary wedge mirror bearing, motor, swiveling wheel, swivel bearing, belt, wedge-shaped mirrors lens barrel and wedge-shaped mirrors.The present invention is rotated by wedge-shaped mirrors, improves the uniformity of optical fundus dispersion image, and under the prerequisite not changing original other structure of device, by increasing rotary wedge lens device, can substantially increase human eye diopter measurement Stability and veracity.
Description
Technical field
The invention belongs to a kind of automatic refractor, be specifically related to a kind of human eye diopter rotary wedge mirror measuring device.
Background technology
Current automatic refractor, when measuring human eye, usually adopts servo-actuated cloud and mist figure to guide focusing mode, allows the optical axis of tested eyeball and the light shaft coaxle of instrument annulus sighting target optical system, accurately measures to realize diopter; But due to the flicker of pupil and the fine rotation of eyeball, the optical axis deviation of optical axis instrument annulus sighting target optical system can be caused, thus the precision measured is impacted.
Summary of the invention
When the present invention is exactly to solve measurement human eye, due to the flicker of pupil and the fine rotation of eyeball, the optical axis deviation of optical axis instrument annulus sighting target optical system can be caused, thus the precision measured is impacted, and propose the good human eye diopter rotary wedge mirror measuring device of a kind of human eye diopter measurement Stability and veracity.
The technical solution used in the present invention: human eye diopter rotary wedge mirror measuring device, it comprises objective apparatus, monitors beam divider device, cloud and mist beam divider device, rotary wedge lens device, aperture prism apparatus and base plate,
Described objective apparatus comprises object lens holder, lens barrel, object lens and wire ring, wherein, described object lens holder is fixed on base plate, and described lens barrel one end is fixed in described object lens holder intracardiac, and described object lens are arranged on described lens barrel inside and are fixed by wire ring;
Described supervision beam divider device comprises supervision beam divider seat and monitors beam divider, wherein, described supervision beam divider seat is fixed on described base plate, and it is inner that described supervision beam divider tilts 45 degree to be fixed on described supervision beam divider seat, wherein monitors that beam divider is positioned at the level projection scope of described object lens;
Described cloud and mist beam divider device comprises cloud and mist beam divider seat and cloud and mist beam divider, wherein, described cloud and mist beam divider seat is fixed on described base plate and is positioned at directly over supervision beam divider seat, described cloud and mist beam divider tilts 45 degree and is fixed in described cloud and mist beam divider seat, and wherein cloud and mist beam divider is parallel with monitoring the minute surface of beam divider;
Described aperture prism apparatus comprises aperture prism table, aperture prism, switching lenslet seat and switching lenslet, wherein, described aperture prism table is fixed on described base plate, described switching lenslet seat is fixed on aperture prism table, it is parallel with the minute surface of cloud and mist beam divider with in the rectangular area that aperture prism table surrounds that aperture prism is fixed on switching lenslet seat, wherein the hole, the centre of homology of aperture prism communicates with the centre of homology of switching lenslet seat, and switching lenslet is arranged on switching lenslet seat upper end and is positioned at above the centre of homology of switching lenslet seat;
Described rotary wedge lens device comprises rotary wedge mirror bearing, motor, swiveling wheel, swivel bearing, belt, wedge-shaped mirrors lens barrel and wedge-shaped mirrors, wherein, described rotary wedge mirror bearing is fixed on switching lenslet seat, motor is fixed on rotary wedge mirror bearing, the output shaft end of motor is connected with swiveling wheel by after rotary wedge mirror bearing, swivel bearing is fixed on rotary wedge mirror bearing, wedge-shaped mirrors lens barrel one end is connected with swivel bearing, swiveling wheel and wedge-shaped mirrors lens barrel pass through belt transmission, wedge-shaped mirrors is fixed on the lower end of the center cavity of wedge-shaped mirrors lens barrel, described wedge-shaped mirrors center is centrally located at same axis with switching lenslet.
Further, described wedge-shaped mirrors is 4-8 degree with the angle of inclination of horizontal plane in wedge-shaped mirrors lens barrel, and its incline direction is consistent with cloud and mist beam divider incline direction.
The present invention compared with prior art its beneficial effect is: 1. the present invention is when carrying out human eye diopter and detecting, rotated by driven by motor circle wedge-shaped mirrors, annulus sighting target light is by rear generation deviation, the track of deviation light beam is a circle, light beam can be redirect to wedge-shaped mirrors specifies within the scope of the cone angle of deflection angle 2 times, thus the scope can filled up in trace circle, define a taper seat, solve the skew problem of the optical axis because the flicker of pupil and the fine rotation of eyeball cause and annulus sighting target systematic optical axis, enhance the alignment of tested human eye's visual axis and automatic refractor systematic optical axis, 2. the present invention is rotated by wedge-shaped mirrors, improves the uniformity of optical fundus dispersion image, 3. structure of the present invention is simple, under the prerequisite not changing original other structure of device, by increasing rotary wedge lens device, can substantially increase human eye diopter measurement Stability and veracity.
Accompanying drawing explanation
Fig. 1 is structure side view of the present invention;
Fig. 2 is the sectional view along A-A hatching in Fig. 1;
Fig. 3 is the structural representation of objective apparatus;
Fig. 4 is the structural representation monitoring beam divider device;
Fig. 5 is the structural representation of cloud and mist beam divider device;
Fig. 6 is the structural representation of aperture prism apparatus;
Fig. 7 is the structural representation of rotary wedge lens device;
Fig. 8 is the sectional view along B-B hatching in Fig. 2.
Detailed description of the invention
Human eye diopter rotary wedge mirror measuring device, as Fig. 2, it comprises objective apparatus 1, monitor beam divider device 2, cloud and mist beam divider device 3, rotary wedge lens device 4, aperture prism apparatus 5, annulus sighting target system and device 6, diopter measurement system and device 7 and base plate 30, human eye 13 is observed at object lens 10 dead ahead of objective apparatus 1, as Fig. 3, objective apparatus 1 comprises object lens holder 8, lens barrel 9, object lens 10 and wire ring, wherein, object lens holder 8 is fixed on base plate 30, lens barrel 9 one end is fixed in object lens holder 8 intracardiac by screw 11, object lens 10 are arranged on lens barrel 9 inside and are fixed by wire ring, wherein wire ring can also be replaced by pressure cylinder or glue, as Fig. 4, monitor that beam divider device 2 comprises monitor beam divider seat 14 and monitor beam divider 15, wherein, monitor that beam divider seat 14 is fixed on base plate 30, monitor that beam divider 15 tilts 45 degree and be fixed on supervision beam divider seat 14 inside with glue, wherein monitor that beam divider 15 is positioned at the level projection scope of object lens 10, as Fig. 5, cloud and mist beam divider device 3 comprises cloud and mist beam divider seat 16 and cloud and mist beam divider 17, wherein, cloud and mist beam divider seat 16 is fixed on base plate 30 and is positioned at directly over supervision beam divider seat 14, cloud and mist beam divider 17 tilts 45 degree and is fixed in cloud and mist beam divider seat 16 with glue, and wherein cloud and mist beam divider 17 is parallel with monitoring the minute surface of beam divider 15, as Fig. 6, aperture prism apparatus 5 comprises aperture prism table 26, aperture prism 27, switching lenslet seat 28 and switching lenslet 29, wherein, aperture prism table 26 is fixed on base plate 30, switching lenslet seat 28 is fixed on aperture prism table 26 with glue, aperture prism 27 to be fixed in switching lenslet seat 28 and the rectangular area that aperture prism table 26 surrounds with glue and parallel with the minute surface of cloud and mist beam divider 17, wherein the hole, the centre of homology of aperture prism 27 communicates with the centre of homology of switching lenslet seat 28, switching lenslet 29 is fixed on switching lenslet seat 28 upper end with glue and is positioned at above the centre of homology of switching lenslet seat 28, as Fig. 7 with as Fig. 8, rotary wedge lens device 4 comprises rotary wedge mirror bearing 18, motor 19, swiveling wheel 20, swivel bearing 21, belt 22, wedge-shaped mirrors lens barrel 23 and wedge-shaped mirrors 24, wherein, rotary wedge mirror bearing 18 is fixed on switching lenslet seat 28, motor 19 is fixed on rotary wedge mirror bearing 18, the output shaft end of motor 19 is connected with swiveling wheel 20 by after rotary wedge mirror bearing 18, swivel bearing 21 is fixed on rotary wedge mirror bearing 18, wedge-shaped mirrors lens barrel 23 one end is connected with swivel bearing 21, swiveling wheel 20 and wedge-shaped mirrors lens barrel 23 are by belt 22 transmission, wedge-shaped mirrors 24 is fixed on the lower end of the center cavity of wedge-shaped mirrors lens barrel 23, wedge-shaped mirrors 24 center is centrally located at same axis with switching lenslet 29.Wherein wedge-shaped mirrors 24 is 6 degree with the angle of inclination of horizontal plane in wedge-shaped mirrors lens barrel 23, and its incline direction is consistent with the incline direction of cloud and mist beam divider 17.As Fig. 2, provide optics sighting target to be positioned at same plane for guiding the centrage of the annulus sighting target system and device 6 of human eye observation with the centrage in switching lenslet 29 hole, and can project in the hole of annulus sighting target system and device 6 through the deviation light beam of lenslet 29 of transferring.Same plane is positioned at, by making human eye's visual axis meet the measurement requirement of diopter measurement system and device 7 in the guiding of annulus sighting target system and device 6 pairs of human eyes for the centrage of the diopter measurement system and device 7 of human eye diopter measurement and the centrage of annulus sighting target system and device 6.
Operation principle: when automatic refractor carries out the detection of human eye diopter, annulus sighting target optical system produces annulus sighting target, be transmitted on human eye retina, through retinal reflex, by diopter measurement system imaging on CCD, the retinal reflex image that CCD obtains is an annulus, different dioptric human eye, circle diameter is in different size, can calculate the diopter of human eye according to annulus size.
Claims (2)
1. human eye diopter rotary wedge mirror measuring device, it comprises objective apparatus, monitors beam divider device, cloud and mist beam divider device, rotary wedge lens device, aperture prism apparatus and base plate, it is characterized in that:
Described objective apparatus comprises object lens holder, lens barrel, object lens and wire ring, wherein, described object lens holder is fixed on base plate, and described lens barrel one end is fixed in described object lens holder intracardiac, and described object lens are arranged on described lens barrel inside and are fixed by wire ring;
Described supervision beam divider device comprises supervision beam divider seat and monitors beam divider, wherein, described supervision beam divider seat is fixed on described base plate, and it is inner that described supervision beam divider tilts 45 degree to be fixed on described supervision beam divider seat, wherein monitors that beam divider is positioned at the level projection scope of described object lens;
Described cloud and mist beam divider device comprises cloud and mist beam divider seat and cloud and mist beam divider, wherein, described cloud and mist beam divider seat is fixed on described base plate and is positioned at directly over supervision beam divider seat, described cloud and mist beam divider tilts 45 degree and is fixed in described cloud and mist beam divider seat, and wherein cloud and mist beam divider is parallel with monitoring the minute surface of beam divider;
Described aperture prism apparatus comprises aperture prism table, aperture prism, switching lenslet seat and switching lenslet, wherein, described aperture prism table is fixed on described base plate, described switching lenslet seat is fixed on aperture prism table, it is parallel with the minute surface of cloud and mist beam divider with in the rectangular area that aperture prism table surrounds that aperture prism is fixed on switching lenslet seat, wherein the hole, the centre of homology of aperture prism communicates with the centre of homology of switching lenslet seat, and switching lenslet is arranged on switching lenslet seat upper end and is positioned at above the centre of homology of switching lenslet seat;
Described rotary wedge lens device comprises rotary wedge mirror bearing, motor, swiveling wheel, swivel bearing, belt, wedge-shaped mirrors lens barrel and wedge-shaped mirrors, wherein, described rotary wedge mirror bearing is fixed on switching lenslet seat, motor is fixed on rotary wedge mirror bearing, the output shaft end of motor is connected with swiveling wheel by after rotary wedge mirror bearing, swivel bearing is fixed on rotary wedge mirror bearing, wedge-shaped mirrors lens barrel one end is connected with swivel bearing, swiveling wheel and wedge-shaped mirrors lens barrel pass through belt transmission, wedge-shaped mirrors is fixed on the lower end of the center cavity of wedge-shaped mirrors lens barrel, described wedge-shaped mirrors center is centrally located at same axis with switching lenslet.
2. human eye diopter rotary wedge mirror measuring device according to claim 1, is characterized in that: described wedge-shaped mirrors is 4-8 degree with the angle of inclination of horizontal plane in wedge-shaped mirrors lens barrel, and its incline direction is consistent with cloud and mist beam divider incline direction.
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| CN201410412822.0A CN104116493B (en) | 2014-08-21 | 2014-08-21 | Human eye diopter rotary wedge mirror measuring device |
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| CN201410412822.0A CN104116493B (en) | 2014-08-21 | 2014-08-21 | Human eye diopter rotary wedge mirror measuring device |
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| CN104116493A CN104116493A (en) | 2014-10-29 |
| CN104116493B true CN104116493B (en) | 2015-12-02 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59500163A (en) * | 1982-02-12 | 1984-02-02 | クリユ−ガ−，ヘルム−ト | Method and device for measuring refractive power |
| JPH0231728A (en) * | 1988-07-22 | 1990-02-01 | Canon Inc | Ophthalmology measuring device |
| CN2314345Y (en) * | 1997-11-12 | 1999-04-14 | 谭自成 | Full functional instrument for surveying plotting instrument |
| WO2003020167A2 (en) * | 2001-08-31 | 2003-03-13 | Adaptive Optics Associates, Inc. | Ophthalmic instruments capable of measuring aberrations |
| EP1767144A1 (en) * | 2005-09-27 | 2007-03-28 | Nidek Co., Ltd | Eye refractive power measurement apparatus |
| CN101248983A (en) * | 2008-04-08 | 2008-08-27 | 上海理工大学 | Compensation device for human eye wavefront aberration measurement and correction system |
| CN101646382A (en) * | 2007-02-14 | 2010-02-10 | 眼科研究所有限公司 | Characterization of optical systems |
| CN202051688U (en) * | 2010-11-29 | 2011-11-30 | 沈阳理工大学 | Astigmatism objective refractometer based on wave-front aberration |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6460997B1 (en) * | 2000-05-08 | 2002-10-08 | Alcon Universal Ltd. | Apparatus and method for objective measurements of optical systems using wavefront analysis |
| JP4464726B2 (en) * | 2004-03-30 | 2010-05-19 | 株式会社トプコン | Ophthalmic equipment |
-
2014
- 2014-08-21 CN CN201410412822.0A patent/CN104116493B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59500163A (en) * | 1982-02-12 | 1984-02-02 | クリユ−ガ−，ヘルム−ト | Method and device for measuring refractive power |
| JPH0231728A (en) * | 1988-07-22 | 1990-02-01 | Canon Inc | Ophthalmology measuring device |
| CN2314345Y (en) * | 1997-11-12 | 1999-04-14 | 谭自成 | Full functional instrument for surveying plotting instrument |
| WO2003020167A2 (en) * | 2001-08-31 | 2003-03-13 | Adaptive Optics Associates, Inc. | Ophthalmic instruments capable of measuring aberrations |
| EP1767144A1 (en) * | 2005-09-27 | 2007-03-28 | Nidek Co., Ltd | Eye refractive power measurement apparatus |
| CN101646382A (en) * | 2007-02-14 | 2010-02-10 | 眼科研究所有限公司 | Characterization of optical systems |
| CN101248983A (en) * | 2008-04-08 | 2008-08-27 | 上海理工大学 | Compensation device for human eye wavefront aberration measurement and correction system |
| CN202051688U (en) * | 2010-11-29 | 2011-11-30 | 沈阳理工大学 | Astigmatism objective refractometer based on wave-front aberration |
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| CN104116493A (en) | 2014-10-29 |
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Inventor after: Yan Jie Inventor after: Chen Youhua Inventor after: Guo Zhiyong Inventor after: Zhao Junqi Inventor after: Du Xiaojun Inventor after: Guo Yanwen Inventor after: Li Zhiwei Inventor after: Zhang Suzhen Inventor before: Yan Jie Inventor before: Guo Zhiyong Inventor before: Chen Youhua Inventor before: Zhao Junqi Inventor before: Du Xiaojun Inventor before: Guo Yanwen Inventor before: Zhang Suzhen |
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Free format text: CORRECT: INVENTOR; FROM: YAN JIE GUO ZHIYONG CHEN YOUHUA ZHAO JUNQI DU XIAOJUN GUO YANWEN ZHANG SUZHEN TO: YAN JIE CHEN YOUHUA GUO ZHIYONG ZHAO JUNQI DU XIAOJUN GUO YANWEN LI ZHIWEI ZHANG SUZHEN |
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Address after: 030051 No. 0301 and 0402, building 1, No. 19, Chuangye street, Taiyuan Xuefu Park, comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Taiyuan Zhongbei Xinyuan Technology Center (Co.,Ltd.) Address before: 030051 photoelectric factory of Zhongbei University, No. 3 Xueyuan Road, Jiancaoping District, Taiyuan City, Shanxi Province Patentee before: TAIYUAN XINYUAN HIGH TECH CENTER NORTH University OF CHINA |
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