CN109645952A - Green background eyesight detects lamp box - Google Patents
Green background eyesight detects lamp box Download PDFInfo
- Publication number
- CN109645952A CN109645952A CN201710956571.6A CN201710956571A CN109645952A CN 109645952 A CN109645952 A CN 109645952A CN 201710956571 A CN201710956571 A CN 201710956571A CN 109645952 A CN109645952 A CN 109645952A
- Authority
- CN
- China
- Prior art keywords
- eyesight
- glass
- lamp box
- green
- display screen
- 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.)
- Pending
Links
- 230000004438 eyesight Effects 0.000 title abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000005341 toughened glass Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 4
- 230000000007 visual effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 20
- 208000003464 asthenopia Diseases 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 2
- 230000001886 ciliary effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Eyesight detects lamp box, is to do leaded light using LED is highlighted as light emitting source with tempered glass or quartz glass organic glass, form green background, test symbol is black.Tester's asthenopia caused by the defects of light beam for solving the appearance of tubular type white lamp hole lamp house screen display causes luminance contrast excessive influences test accuracy, and then biggish opposite effects is brought to correcting defects of vision, or even occur the problems such as eyesight further deteriorates within a short period of time.Green eyesight detection lamp box can naturally eliminate the asthenopia occurred during giving a test of one's eyesight, can accurate detection go out the actual read number of eyesight.
Description
Technical field
It is green the present invention relates to a kind of screen display, it is nuisanceless, without stroboscopic, electromagnetic-radiation-free, the uniform eyesight of light
Detect Special light box.
Screen brightness irregularities caused by the lamp box is completely eliminated because of incandescent lamp tube (light belt occurs in installation lamp strip position) are drawn
The testee's energy risen is not concentrated, and with eyesight rapid fatigue caused by incandescent lamp tube high speed stroboscopic, testing result is caused to be distorted.
The present invention, it is that a kind of shown using LED (green) light source is driven.By glass guiding property, make screen display light
Uniform and stable and energy is with an automatic light meter.Meet and provides (80~320cd/m in national standard " GB11533-89 "2) require.Using CDThe eyesight of (direct current) power supply, no any stroboscopic detects Special light box.
Technical background
Now, hospital, medical center etc., application is all to exchange driving incandescent lamp tube with traditional 50Hz to do background light source
Test equipment, the equipment use tubular line lamp source due to screen display driving light source in application process, screen display occurs two
A apparent light beam of extreme.The light beam brightness and its surrounding brightness difference are extremely obvious, and national standard " GB11533- is not achieved in brightness
89 " in It is required that.White light source and black character (E or C) contrast are too strong, cause tester's energy effective
It concentrates.
Conventional lightbank is caused stroboscopic, influences tester, caused pupil fast using exchange (AC220V, 50Hz) power supply mode
Speed reduces, amplifies, and generates asthenopia, declines real visual acuity, cause eyesight testing result incorrect.Consequence is, after correction
Eyesight increase inadaptable sense, further result in visual impairment！
With people's experience accumulation in view light practice for a long time, sum up:
1. visual fatigue can be effectively relieved in green lamp box.
2. green light is in the center of visible spectrum, within the scope of the color frequency most sensitive in human eye；
3. Color Psychology is thought, green can allow people to feel comfortable and calmness.
4. green lamp box has special positive influence to eyesight testing from the viewpoint of contrast identification.In color
In the case that saturation degree is low, green lamp box display screen and white lamp box display screen (refer to closely (350~500) people near vision
Eye resolving power) influence there is no essence difference.But if lamp box display color saturation degree is excessively high to will lead to test instead
Symbol and background reflectance reduce, and influence the contrast to test symbol, reduce the identification of test symbol, can allow eyes instead
It is more easily tired.
How eyesight is correctly protected in eyesight testing?
The eyes for looking at the green plants relaxation of tension of distant place are the important means of effective prevention eye fatigue, but and its
Say it is that the green of plant allows eyes to loosen, it would be better to being attributed to the fact that plant will be far longer than scenery and human eye at a distance from human eye
Distance, This move of distally focusing make ciliary muscle be in the state loosened, and nervous ciliary muscle is rested.Therefore, green
Colored lights case test eyesight can loosen ciliary muscle well, eliminate asthenopia, can more reflect accurately eyesight testing
As a result.
Summary of the invention
The purpose of the present invention is to provide a kind of eyesight detection devices.It is screen display brightness drive that the equipment, which is using green LED,
Dynamic light source, and can be constant, background luminance is kept by national standard.It is formed using glass guiding property and dorsal light reflex plate bright
Spend uniform display system.
LED is evenly distributed on to any side plane of glass or surrounding at a certain distance, it is anti-in light by glass guiding property
It penetrates under the action of plate, light is evenly distributed on display screen front surface, screen display brightness uniformity can be made to be distributed, display screen is without brightness
Difference.
The present invention uses green light source, it is therefore intended that and change the white fluorescent tube of traditional utilization and is injured to tester's bring,
Make every effort to correct test result.To provide a true and reliable eyesight detection parameters to eyesight testing persons.
The present invention reaches regulation brightness in national standard using accurate pressure stabilizing, constant current, adjust automatically screen display brightness
The features of the present invention and application range:
1., due to background light source of the invention use green display, within the scope of predetermined distance, produce ciliary muscle will not
Raw fatigue guarantees that test result is accurate, reliably.
2., power supply use direct currentAccurate pressure stabilizing, filtering.
3., stroboscopic phenomenon caused by alternating voltage will not be generated, eliminate the asthenopia due to caused by stroboscopic from this.
4., since present invention employs adjust automatically brightness, change of external conditions will not all cause lamp box brightness of display screen
Variation, it is eternal to be maintained at national regulations
5., volume 30 (mm) are reduced to by original thickness 60 (mm), reduce volume and saved material.
6., do present invention employs LED background light source energy consumption only has conventional vision lamp box 1/2.The white lamp box of standard
Input power 60W only has 30W using the eyesight detection lamp box of LED composition.
7., LED service life with higher is generally 50,000 hour.Traditional white tubular type tests its service life of lamp box
Only 3000 hours or so.It can be seen that the test lamp box long service life brightness stability formed using LED.
The lamp box is applied to: hospital, optician's shop, medical center, vision correction center
Detailed description of the invention
Fig. 1 is lamp box structure schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is power supply function schematic diagram
Wherein 1, rear light box；2, the highlighted LED of green；3, tempered glass display screen；4, character is tested；5, display screen is solid
Determine slot；It 6, can 90 ° of rotational display screens (door)；7, folding (hinges)；8, preceding screen brightness light reflecting board；9, it is put down after dodge gate
Face；D, intelligent dimming power supply is including: a, intelligent dimming b, accurate regulated power supply c, sensor
Embodiment explanation
In conjunction with attached drawing 1-3, structure of the invention is illustrated:
With the door (6) that a kind of rear box (1) of aluminum alloy materials structure composition and equivalent material form, composition is complete
Rectangle lamp box.Door (6) (schematic diagram 1), is equipped with tempered glass display screen (3) display screen and is fixed on four lateral grooves 5 of door.
(schematic diagram 2), (3) four sides of display screen are equipped at a certain distance to shine as green LED high-brightness luminous pipe (2), is showing
Screen is located next to below equipped with brightness light reflecting board (8) it is intended that using glass leaded light principle and brightness light reflecting board, in fact
Existing display screen (3) green background.Visual chart test character (4) (see Fig. 1) font face is printed in glass display screen (3) frontal plane
Color is black.
There are three folding (hinges) (7) for the installation of door (6) side, it is therefore intended that realizes door (6) by 90 ° of rotations.Purpose
It is to replace display screen conveniently.
Intelligent dimming power supply (D), inside include: a, Intelligent dimming circuit b, unsteady flow, accurate voltage-stabilizing circuit c, photosensitive biography
Sensor
A kind of background is green, and test symbol is black, and the eyesight of (attached drawing 1) detects lamp box.When lamp box is loaded with direct current peace
After full voltage, LED light and pass through four side of display screen to symmetrical centre guide-lighting (parallel direction) by brightness light reflecting board by light
Line reflects the light source perpendicular to parallel rays, and lighting display screen, (brightness adjustment is changed by automatic dimming circuit (a)
LED operation electric current, meets normal brightness).The automatic dimming circuit is come automatically by luminance signal provided by sensor (c)
Complete screen display light modulation.
Claims (5)
1. visual chart is the visual chart (character or figure) of printing using tempered glass, quartz glass, organic glass as carrier.
In visual chart (display screen) surrounding top surface or any side, green or other color high-brightness luminous are installed at a certain distance
LED drives light source, is equipped with zero distance in visual chart (tempered glass, quartz glass, the organic glass back side) and is parallel to display
Shield rear surface light reflecting plate.Enhance background luminance, and further increases brightness uniformity.Background luminance adjust automatically.
According to claim 1: font, character or graphic color are black.
2. display screen is the composition such as tempered glass or quartz glass, organic glass.
3. the LED high-brightness luminous pipe that four side top surface of display screen or either side are installed.
4. (LED) high brightness luminous tube according to claim 3, color is green wavelength (λ)
5. zero distance according to claim 1 and being parallel to display screen rear surface light reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956571.6A CN109645952A (en) | 2017-10-12 | 2017-10-12 | Green background eyesight detects lamp box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956571.6A CN109645952A (en) | 2017-10-12 | 2017-10-12 | Green background eyesight detects lamp box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109645952A true CN109645952A (en) | 2019-04-19 |
Family
ID=66109151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956571.6A Pending CN109645952A (en) | 2017-10-12 | 2017-10-12 | Green background eyesight detects lamp box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109645952A (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138803Y (en) * | 1992-09-30 | 1993-07-21 | 中国中医研究院广安门医院 | View lamp for X-ray film |
| US5325136A (en) * | 1988-12-12 | 1994-06-28 | Prio Corporation | Computer display screen simulation for optometric examination |
| WO2002078529A1 (en) * | 2001-03-30 | 2002-10-10 | Manfred Laufer | Method and device for assessing visual acuity |
| CN1612709A (en) * | 2002-01-04 | 2005-05-04 | 株式会社威炯眼镜 | Optometric apparatus, optometric method, and optometric server |
| CN1657000A (en) * | 2005-03-23 | 2005-08-24 | 周志健 | Remote controlled test chart |
| CN200956070Y (en) * | 2006-08-31 | 2007-10-03 | 杭州亿奥光电有限公司 | LED film-viewing lamp box |
| CN201057422Y (en) * | 2007-04-24 | 2008-05-07 | 陈玉胜 | Even light eyesight test chart lamp box |
| CN201429859Y (en) * | 2009-03-05 | 2010-03-24 | 杭州国禹科技有限公司 | Mechanical runner type color identification counter for image pickup intelligent reading instrument |
| CN101749554A (en) * | 2008-12-08 | 2010-06-23 | 厦门市光莆电子有限公司 | Energy-saving ultra-thin LED plane display lamp |
| CN201578222U (en) * | 2009-06-17 | 2010-09-15 | 北京大学第三医院 | Visual chart lamp box with adjustable illumination |
| TW201032772A (en) * | 2009-03-13 | 2010-09-16 | Univ Ishou | Vision test device |
| CN202149400U (en) * | 2011-06-04 | 2012-02-22 | 余姚富图斯摄影器材有限公司 | LED (light-emitting diode) film and video lamp with adjustable light-emitting angles and luminance |
| CN202179524U (en) * | 2011-08-11 | 2012-04-04 | 王金华 | Microcomputer E-table eyesight detector |
| CN202580755U (en) * | 2012-04-12 | 2012-12-05 | 南宁市立节节能电器有限公司 | LED floodlight |
| CN202654101U (en) * | 2012-07-03 | 2013-01-09 | 刘梅 | Eye chart |
| CN203118376U (en) * | 2012-12-14 | 2013-08-07 | 四川柏狮光电技术有限公司 | Ultra-thin light box based on LED (light emitting diode) |
| CN203169829U (en) * | 2013-04-02 | 2013-09-04 | 张传文 | Eye caring instrument |
| CN103565396A (en) * | 2013-11-11 | 2014-02-12 | 苏州卫生职业技术学院 | Visual chart light box with light guide plate of submicrometer structure |
| CN205029938U (en) * | 2015-10-13 | 2016-02-10 | 保定多谷光电科技有限公司 | Intelligence control system of LED illumination |
| CN106618475A (en) * | 2015-11-03 | 2017-05-10 | 四川目道科技有限公司 | Liquid crystal display multi-function training instrument |
| CN106725279A (en) * | 2017-01-06 | 2017-05-31 | 秦洪珍 | Eyesight device for quick testing |
| US20170181619A1 (en) * | 2015-12-23 | 2017-06-29 | Oculus Optikgeraete Gmbh | Vision Testing System and Method For Testing The Eyes |
| CN206443681U (en) * | 2016-07-04 | 2017-08-29 | 金晓冬 | A kind of Intelligent eyesight standard detection instrument |
-
2017
- 2017-10-12 CN CN201710956571.6A patent/CN109645952A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325136A (en) * | 1988-12-12 | 1994-06-28 | Prio Corporation | Computer display screen simulation for optometric examination |
| CN2138803Y (en) * | 1992-09-30 | 1993-07-21 | 中国中医研究院广安门医院 | View lamp for X-ray film |
| WO2002078529A1 (en) * | 2001-03-30 | 2002-10-10 | Manfred Laufer | Method and device for assessing visual acuity |
| CN1612709A (en) * | 2002-01-04 | 2005-05-04 | 株式会社威炯眼镜 | Optometric apparatus, optometric method, and optometric server |
| CN1657000A (en) * | 2005-03-23 | 2005-08-24 | 周志健 | Remote controlled test chart |
| CN200956070Y (en) * | 2006-08-31 | 2007-10-03 | 杭州亿奥光电有限公司 | LED film-viewing lamp box |
| CN201057422Y (en) * | 2007-04-24 | 2008-05-07 | 陈玉胜 | Even light eyesight test chart lamp box |
| CN101749554A (en) * | 2008-12-08 | 2010-06-23 | 厦门市光莆电子有限公司 | Energy-saving ultra-thin LED plane display lamp |
| CN201429859Y (en) * | 2009-03-05 | 2010-03-24 | 杭州国禹科技有限公司 | Mechanical runner type color identification counter for image pickup intelligent reading instrument |
| TW201032772A (en) * | 2009-03-13 | 2010-09-16 | Univ Ishou | Vision test device |
| CN201578222U (en) * | 2009-06-17 | 2010-09-15 | 北京大学第三医院 | Visual chart lamp box with adjustable illumination |
| CN202149400U (en) * | 2011-06-04 | 2012-02-22 | 余姚富图斯摄影器材有限公司 | LED (light-emitting diode) film and video lamp with adjustable light-emitting angles and luminance |
| CN202179524U (en) * | 2011-08-11 | 2012-04-04 | 王金华 | Microcomputer E-table eyesight detector |
| CN202580755U (en) * | 2012-04-12 | 2012-12-05 | 南宁市立节节能电器有限公司 | LED floodlight |
| CN202654101U (en) * | 2012-07-03 | 2013-01-09 | 刘梅 | Eye chart |
| CN203118376U (en) * | 2012-12-14 | 2013-08-07 | 四川柏狮光电技术有限公司 | Ultra-thin light box based on LED (light emitting diode) |
| CN203169829U (en) * | 2013-04-02 | 2013-09-04 | 张传文 | Eye caring instrument |
| CN103565396A (en) * | 2013-11-11 | 2014-02-12 | 苏州卫生职业技术学院 | Visual chart light box with light guide plate of submicrometer structure |
| CN205029938U (en) * | 2015-10-13 | 2016-02-10 | 保定多谷光电科技有限公司 | Intelligence control system of LED illumination |
| CN106618475A (en) * | 2015-11-03 | 2017-05-10 | 四川目道科技有限公司 | Liquid crystal display multi-function training instrument |
| US20170181619A1 (en) * | 2015-12-23 | 2017-06-29 | Oculus Optikgeraete Gmbh | Vision Testing System and Method For Testing The Eyes |
| CN206443681U (en) * | 2016-07-04 | 2017-08-29 | 金晓冬 | A kind of Intelligent eyesight standard detection instrument |
| CN106725279A (en) * | 2017-01-06 | 2017-05-31 | 秦洪珍 | Eyesight device for quick testing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120019494A1 (en) | Alignment factor for ambient lighting calibration | |
| ITMI20070577A1 (en) | METHOD FOR THE OPTIMIZATION OF THE CONDITIONS OF EXECUTION OF THE VISION CONTRAST TEST AND ITS SYSTEM | |
| JP2012128210A (en) | Digital signage device, program, storage medium | |
| US5686982A (en) | Method for the amelioration of visual distress | |
| US8550631B2 (en) | Glare assembly for computerized eye test display | |
| Mantiuk et al. | Display considerations for night and low-illumination viewing | |
| CN109645952A (en) | Green background eyesight detects lamp box | |
| Kahneman | Exposure duration and effective figure-ground contrast | |
| CN202551448U (en) | Photoelectric sensor for auto-dimming constant-light table lamp | |
| Yager et al. | What is the Utility of the Psychophysical" Light Scattering Factor"? | |
| CN203785788U (en) | Optical biological safety measuring system | |
| KR20190047978A (en) | Examination Method for Finding Eye Strain Relief Color Through Self-awareness Test | |
| CN102007496A (en) | Method of viewing a subject | |
| Wolf et al. | Influence of tinted windshield glass on five visual functions | |
| CN205094390U (en) | Eyesight testing device | |
| US6280032B1 (en) | System for detecting and correcting color vision deficiencies based on critical fusion frequency spectral scanning | |
| CN206413226U (en) | A kind of brightness and color temperature compensating system and the light guide plate using the system | |
| CN205809053U (en) | Bottled water lamp inspection device | |
| US20180014726A1 (en) | Ophthalmic Method and Apparatus for Noninvasive Diagnosis and Quantitative Assessment of Cataract Development | |
| Maziarka et al. | Meaning of Scotopic/Photopic Ratio of Light Sources in Lighting of Outdoor Spaces | |
| Edmund | Some methods of testing dark-vision | |
| CN109612580A (en) | A kind of LED light detection device | |
| Cohn et al. | Alternative Traffic Signal Illumination | |
| CN211236501U (en) | Automatic checking machine for backlight module | |
| CN208805283U (en) | A kind of real-time light intensity detection in classroom and warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
|
| RJ01 | Rejection of invention patent application after publication |