CN104545786B - Striped viseon tester - Google Patents
Striped viseon tester Download PDFInfo
- Publication number
- CN104545786B CN104545786B CN201510017364.5A CN201510017364A CN104545786B CN 104545786 B CN104545786 B CN 104545786B CN 201510017364 A CN201510017364 A CN 201510017364A CN 104545786 B CN104545786 B CN 104545786B
- Authority
- CN
- China
- Prior art keywords
- reflection
- transmission eyeglass
- wedge
- center
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000005304 optical glass Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000004438 eyesight Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 230000004304 visual acuity Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Abstract
Striped viseon tester, relates to examination of visual acuity technical field.Comprise light source, collimating lens and plus lens, it is characterized in that: also comprise optics wedge and half-reflection and half-transmission eyeglass, the center of described light source, collimating lens and half-reflection and half-transmission eyeglass point-blank, the center of described plus lens, half-reflection and half-transmission eyeglass and optics wedge is on another straight line, article two, linear vertical, intersection point is positioned at the center of half-reflection and half-transmission eyeglass, and the angle of half-reflection and half-transmission eyeglass and two straight lines is 45 °.The present invention adopts wedge fringes principle, by the display situation allowing patient differentiate the striations after wedge fringes, judges the eyesight status of patient, helps doctor to make diagnosis to conditions of patients.Owing to have employed wedge fringes principle, the present invention effectively can ensure measuring accuracy, and in addition, the present invention also has the simple feature of structure, not only very easy to use, and manufacture and maintenance cost also greatly reduce.
Description
Technical field
The invention belongs to a kind of equipment for examining vision, is a kind of striped viseon tester specifically.
Background technology
Viseon tester is test instrunment conventional in ophthalmologic examination.Although existing eyesight testing instrument function ratio is comparatively comprehensive, the precision comparison of individual event test is low, and it is more loaded down with trivial details to operate, and proposes high requirement to the technical merit of user; In addition, these product prices costly, maintenance and maintenance cost also relatively high, to buyer, especially small medical unit causes larger financial burden.
Summary of the invention
In order to solve the problem, the present invention aims to provide that a kind of measuring accuracy is high, structure is simple, the striped viseon tester of easy to operate, low cost of manufacture.
In order to achieve the above object, the present invention adopts following technical scheme:
Striped viseon tester, comprise light source, collimating lens and plus lens, it is characterized in that: also comprise optics wedge and half-reflection and half-transmission eyeglass, the center of described light source, collimating lens and half-reflection and half-transmission eyeglass point-blank, the center of described plus lens, half-reflection and half-transmission eyeglass and optics wedge is on another straight line, article two, linear vertical, intersection point is positioned at the center of half-reflection and half-transmission eyeglass, and the angle of half-reflection and half-transmission eyeglass and two straight lines is 45 °.
Described light source is semiconductor laser.
Described optics wedge is made up of two blocks of optical glass at an angle to each other.
Beneficial effect of the present invention: adopt wedge fringes principle, by the display situation allowing patient differentiate the striations after wedge fringes, judge the eyesight status of patient, helps doctor to make diagnosis to conditions of patients.By regulating the angle of two blocks of optical glass on optics wedge, can the spacing of fine adjustment interference fringe, thus patient's vision situation is accurately tested.Owing to have employed the wedge fringes principle in optics, effectively can ensure measuring accuracy, in addition, also there is the simple feature of structure, owing to there is no unnecessary accessory structure, not only very easy to use, and manufacture and maintenance cost also greatly reduce.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
The present invention includes light source 6, collimating lens 5 and plus lens 2, it is characterized in that: also comprise optics wedge 4 and half-reflection and half-transmission eyeglass 3, the center of described light source 6, collimating lens 5 and half-reflection and half-transmission eyeglass 3 point-blank, the center of described plus lens 2, half-reflection and half-transmission eyeglass 3 and optics wedge 4 is on another straight line, article two, linear vertical, intersection point is positioned at the center of half-reflection and half-transmission eyeglass 3, and the angle of half-reflection and half-transmission eyeglass 3 and two straight lines is 45 °.Described light source 6 is semiconductor laser.Described optics wedge 4 is made up of two blocks of optical glass at an angle to each other.
Work process of the present invention is: the light sent by light source 6 forms collimated light beam after collimating lens 5, after parallel beam incident to half-reflection and half-transmission eyeglass 3, reflex on optics wedge 4, the light beam reflexed on optics wedge 4 forms interference fringe again after the upper and lower surface reflection of the air film formed between two blocks of optical glass, the light beam forming this interference fringe is injected in human eye 1 after half-reflection and half-transmission eyeglass 3 and collecting lens 2, and doctor will provide the vision condition of human eye 1 to the state of striped according to patient view.
The present invention adopts wedge fringes principle, by the display situation allowing patient differentiate the striations after wedge fringes, judges the eyesight status of patient, helps doctor to make diagnosis to conditions of patients.By regulating the angle of two blocks of optical glass on optics wedge 4, can the spacing of fine adjustment interference fringe, thus patient's vision situation is accurately tested.Owing to have employed wedge fringes principle, the present invention effectively can ensure measuring accuracy, in addition, also has the simple feature of structure, owing to not having unnecessary accessory structure, not only very easy to use, and manufacture and maintenance cost also greatly reduce.
Claims (3)
1. a striped viseon tester, comprise light source, collimating lens and plus lens, it is characterized in that: also comprise optics wedge and half-reflection and half-transmission eyeglass, the center of described light source, collimating lens and half-reflection and half-transmission eyeglass point-blank, the center of described plus lens, half-reflection and half-transmission eyeglass and optics wedge is on another straight line, article two, linear vertical, intersection point is positioned at the center of half-reflection and half-transmission eyeglass, and the angle of half-reflection and half-transmission eyeglass and two straight lines is 45 °.
2. striped viseon tester according to claim 1, is characterized in that: described light source is semiconductor laser.
3. striped viseon tester according to claim 1, is characterized in that: described optics wedge is made up of two blocks of optical glass at an angle to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017364.5A CN104545786B (en) | 2015-01-14 | 2015-01-14 | Striped viseon tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017364.5A CN104545786B (en) | 2015-01-14 | 2015-01-14 | Striped viseon tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104545786A CN104545786A (en) | 2015-04-29 |
| CN104545786B true CN104545786B (en) | 2016-02-24 |
Family
ID=53063661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017364.5A Expired - Fee Related CN104545786B (en) | 2015-01-14 | 2015-01-14 | Striped viseon tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104545786B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096325A2 (en) * | 1982-06-08 | 1983-12-21 | Interzeag AG | Method and apparatus for determining the contrast threshold perceptable by the human eye |
| CN2850515Y (en) * | 2005-10-21 | 2006-12-27 | 金成鹏 | Visual contrast sensitivity examining apparatus utilizing grating diaphragm method |
| CN101614612A (en) * | 2009-07-24 | 2009-12-30 | 深圳职业技术学院 | Retina modulation transfer function measurement device |
| CN101650169A (en) * | 2009-07-17 | 2010-02-17 | 山东富美科技有限公司 | Scraper planeness detection system |
| CN204379243U (en) * | 2015-01-14 | 2015-06-10 | 黑龙江省医学科学院 | Striped viseon tester |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205313U (en) * | 1985-11-30 | 1987-03-11 | 陕西师范大学 | Assaying instrument for sense of sight |
| DE102005005816A1 (en) * | 2005-02-04 | 2006-08-17 | Carl Zeiss Meditec Ag | Device for determining the position of mutually distanced regions in transparent and / or diffuse objects |
-
2015
- 2015-01-14 CN CN201510017364.5A patent/CN104545786B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0096325A2 (en) * | 1982-06-08 | 1983-12-21 | Interzeag AG | Method and apparatus for determining the contrast threshold perceptable by the human eye |
| CN2850515Y (en) * | 2005-10-21 | 2006-12-27 | 金成鹏 | Visual contrast sensitivity examining apparatus utilizing grating diaphragm method |
| CN101650169A (en) * | 2009-07-17 | 2010-02-17 | 山东富美科技有限公司 | Scraper planeness detection system |
| CN101614612A (en) * | 2009-07-24 | 2009-12-30 | 深圳职业技术学院 | Retina modulation transfer function measurement device |
| CN204379243U (en) * | 2015-01-14 | 2015-06-10 | 黑龙江省医学科学院 | Striped viseon tester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104545786A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Belin et al. | An introduction to understanding elevation‐based topography: how elevation data are displayed–a review | |
| Sun et al. | Recovery of corneal hysteresis after reduction of intraocular pressure in chronic primary angle-closure glaucoma | |
| del Buey et al. | Biomechanical properties of the cornea in Fuchs’ corneal dystrophy | |
| Wolffsohn et al. | Impact of soft contact lens edge design and midperipheral lens shape on the epithelium and its indentation with lens mobility | |
| CN203935168U (en) | Can realize the ophthalmology OCT device of anterior ocular segment oculi posterior segment imaging simultaneously | |
| Jinabhai et al. | Changes in refraction, ocular aberrations, and corneal structure after suspending rigid gas-permeable contact lens wear in keratoconus | |
| Tan et al. | Dynamic change of optical quality in patients with dry eye disease | |
| CN203987981U (en) | A kind of centro meter | |
| Mallen et al. | Measurement of retinal contour and supine axial length using the Zeiss IOLMaster | |
| CN104545790A (en) | OCT (Optical Coherence Tomography) imaging system and method for monitoring shaping effect of orthokeratology lens by using living body | |
| CN204379243U (en) | Striped viseon tester | |
| EP4275587A3 (en) | A computer-implemented method and system for interactively measuring ocular refractive errors, addition and power of reading glasses | |
| CN201609359U (en) | Comprehensive optometry instrument | |
| CN104545786B (en) | Striped viseon tester | |
| Antona et al. | Validity and repeatability of a new test for aniseikonia | |
| ANDERSON | Accurate clinical means of measuring intervisual axis distance | |
| Clark | Variations in corneal topography | |
| RU2550011C1 (en) | Method and device for monocular measurement of interpupillary distance | |
| JPH04253836A (en) | Ophthalmologic measuring apparatus | |
| CN210872401U (en) | Vision correction instrument | |
| RU157345U1 (en) | DEVICE FOR MARKING THE PUBLIC CENTER ON THE FRAME PLANE | |
| US2364844A (en) | Aniseikonia determining and measuring device | |
| CN115113389B (en) | Tear film stability synchronous real-time analysis system and optical path construction method | |
| CN203000897U (en) | Glasses type interpupillary distance measurer | |
| Shin et al. | Comparison of central corneal thickness measured by swept-source optical coherence tomography and ultrasound pachymetry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HARBIN MEDICAL UNIVERSITY Free format text: FORMER OWNER: HEILONGJIANG MEDICAL SCIENCE INSTITUTE Effective date: 20150709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150709 Address after: 150000 Nangang City, Heilongjiang Province Health Road, No. 157, Applicant after: HARBIN MEDICAL University Address before: 150000 Nangang City, Heilongjiang Province Health Road, No. 157, Applicant before: Heilongjiang Medical Science Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 150000 Harbin, Heilongjiang, Nangang District Road, No. 196 Patentee after: Harbin Medical University Asset Management Co.,Ltd. Patentee after: Liu Ping Patentee after: Gao Huide Address before: 150000 Nangang City, Heilongjiang Province Health Road, No. 157, Patentee before: Harbin Medical University |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20220114 |