CN102805608A - Medical LED (light emitting diode) vision test instrument - Google Patents
Medical LED (light emitting diode) vision test instrument Download PDFInfo
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- CN102805608A CN102805608A CN2012101842686A CN201210184268A CN102805608A CN 102805608 A CN102805608 A CN 102805608A CN 2012101842686 A CN2012101842686 A CN 2012101842686A CN 201210184268 A CN201210184268 A CN 201210184268A CN 102805608 A CN102805608 A CN 102805608A
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Abstract
The invention relates to a vision test chart, a vision chart back lighting technology, a vision chart control system and an LED (light emitting diode) solid state lighting energy saving technology, in particular to a medical LED (light emitting diode) vision test instrument. The medical LED vision test instrument has the technical scheme that the medical LED vision test instrument comprises a sighting target plate, light sources, a main body machine case and an auxiliary protecting cover, wherein a plastic cement case is adopted as the main body machine case, the plastic cement case and a bottom plate form a main body sealed case of the test instrument, the main body sealed case mainly provides the protection and support effects for the vision test instrument, the light sources are a plurality of LED light sources which are uniformly distributed in the main body machine case and are arranged on a base plate, and the protecting cover is made of transparent acrylic materials. The medical LED vision test instrument has the beneficial effects that on the basis that the test functions are various, and the surface brightness of the sighting target plate is uniform and constant, the effects of remote operation, portability, simplicity, energy saving and the like are further realized, so better use prospects are realized.
Description
Technical field
The present invention relates to eye chart, visual acuity chart back lighting technology, visual acuity chart control system and LED solid-state illumination power-saving technology, relate in particular to the medical viseon tester of a kind of LED of meter.
Background technology
Existing visual acuity chart adopts common papery structure usually.Because the vision of human eye is also relevant with the brightness and contrast of recognition object, also need cooperates extraneous auxiliary light to guarantee to have on the visual acuity chart one during the vision detection and discern brightness more uniformly.This illumination now mainly still adopts common fluorescent tube or CCFL as backlight on the market, and the identification luminance uniformity of visual acuity chart is not very high like this.
Now general visual acuity chart mainly is to be used to detect myopia and hypermetropia, but along with the development of present society, people detect vision and also have higher requirement, and comprise achromatopsia, and color weakness, astigmatism all need through other instruments or equipment is auxiliary could further detect.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the present invention provides following technical scheme to solve its technical problem:
The medical viseon tester of LED, this viseon tester comprise sighting target panel, light source and main body housing and supplementary protection cover; Adopt plastic shell as main body housing, said plastic shell and base plate are formed the main body sealing shell of this tester, be mainly viseon tester the protection supporting role is provided, and its light source is to be evenly distributed on several LEDs light sources of establishing in the said main body housing on the substrate; The material of said protective cover is transparent acrylic.
Further in the present invention, the electric current of the led light source of this viseon tester receives Based Intelligent Control.
Further in the present invention, its sighting target panel is compound sighting target panel, comprises nearly hypermetropia test, anerythrochloropsia assessment, and astigmatism test.
Further in the present invention, one of antimetropia vision sighting target of its sighting target panel has adopted blue more accurately formula ring, so that accurately assess vision.
Further in the present invention, said sighting target panel is positioned at main body housing foremost; Said led light source is arranged in the back of lamp box uniformly; After making exiting surface and the light source of lamp box draw back certain distance; The light of the light source of said each LED fully mixes; Diffuser plate via the lamp box surface transmits, thereby guarantees that the observer can not see through the luminous bright spot that sighting target is observed light source, but performance uniform surface light source attribute.
Further in the present invention, its sighting target panel is divided into six blocks, and can carry out independently switch switching through the reception head on the main frame; The LED lamp that these six blocks cover down uses dividing plate to separate, so that each block can be controlled brightness separately.
Further in the present invention, can use remote controller independently to carry out and main frame between communication, accomplish all functions of main frame.
Further in the present invention, the brightness of its sighting target can be carried out independent adjustment through light-control knob.
The present invention mainly uses the floor light light source of this solid-state illumination light source of LED as the visual acuity chart system; Through system combination; With Based Intelligent Control and LED solid-state illumination backlight technology, and myopia, hypermetropia, achromatopsia; Detection means such as color weakness and astigmatism is integrated into a system, as the professional equipment of vision detection.
At first make with LED is the lamp box of backlight.As backlight, single power of performance led light source is little, the characteristics that brightness is high with LED; Be arranged in the back of lamp box uniformly; After the exiting surface of lamp box and light source drew back certain distance like this, the light of each light source of LED fully mixed, and the diffuser plate surperficial via lamp box transmits; Assurance reaches two functions: 1, the surperficial each point brightness of diffuser plate is even, and this uniform array of benefiting from LED is arranged; 2, light source point can not appear: because visual acuity chart and LED have drawn back certain distance; The light of LED mixes each other; When light sees through the diffuser plate surface via the refraction and the scattering of the diffusion particle of diffuser plate; The light source point of LED itself will be blured fully, watches from the outside, just look like light be by diffuser plate itself emit the same.By above-mentioned assurance, just can produce uniform surface light source at 2.
Detect in order better to integrate vision, this visual acuity chart has also increased other detection module except possessing basic myopia and hypermetropia measuring ability: 1, color weakness detects sighting target; 2, anerythrochloropsia detects sighting target; 3, astigmatism detects sighting target; Through the electric current that is positioned at the LED on the substrate is carried out intelligentized control, just can realize intellectuality control to each sighting target brightness.
Owing to increased the vision detection module, in order to reduce the unnecessary interference of tested vision object, to isolating each other between each detection module, for current tester, except the module that needs detect, the brightness of non-detection module is in off state.
In order to simplify switching time and the operating procedure between each test module, opening and shutting off of module carried out intellectuality integrate, except the button of test panel itself can be realized control, can also operate via remote controller.
Even can also unify for the brightness that guarantees to use for a long time between each module, also added fine adjustment function, can segment fine setting to the acquiescence brightness of each module.
Sighting target figure directly is installed to LED lamp box inside, and the surface of sighting target figure also has the acrylic protective cover of layer of transparent, and whole like this sighting target just becomes as a whole with the LED-backlit lamp box, has constituted the medical viseon tester of LED.
In sum, the invention has the beneficial effects as follows: the present invention has that test function is various, the sighting target panel surface brightness is evenly constant, and remote-controlled operation is portable simple, also has effects such as energy-conservation simultaneously, therefore has better use prospect.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment, the present invention is described further.
Fig. 1 is an axonometric chart of the present invention;
Fig. 2 is a three-dimensional exploded view of the present invention;
Fig. 3 is the transverse section cutaway view of Fig. 1;
Fig. 4 is this sighting target pattern;
Fig. 5 is a back light scattergram of the present invention;
Fig. 6 is a circuit structure schematic diagram of the present invention;
Fig. 7 is a remote controller axonometric chart of the present invention;
Fig. 8 is the three-dimensional exploded view of remote controller of the present invention;
Fig. 9 is the A portion enlarged drawing of Fig. 6;
Figure 10 is the B portion enlarged drawing of Fig. 6;
Figure 11 is the C portion enlarged drawing of Fig. 6;
Figure 12 is the D portion enlarged drawing of Fig. 6.
Accompanying drawing sign: baffle 01, sighting target panel shaping piece 02, sighting target panel 03, housing main body 04, light division board 06, substrate P CB plate 07, base plate 08, receive 09, one of display lamp 10, switch 11, DC joint 12, light-control knob 13, over cap 14, led light source 15, sighting target 16, sighting target 2 17, sighting target 3 18, sighting target 4 19, remote controller loam cake 20, remote controller key 21, Infrared Lens 22, remote controller lower cover 23 and battery cover board 24.
The specific embodiment
Shown in 4, the medical viseon tester of LED, this viseon tester comprise sighting target panel 03, light source and main body housing and supplementary protection cover 01.Wherein, plastic shell 04 is formed the main body of tester and is sealed shell with base plate 08, be mainly viseon tester the protection supporting role is provided; Led light source 15 produces even fine light, is dispersed throughout on the substrate P CB plate 07, and pcb board 07 is mainly the LED power supply; 06 is the light division board, outer surface spraying light diffuse-reflective material, and sighting target panel 03, the sighting target symbol of measuring vision is printed on this plate; Sighting target panel shaping piece 02, the surface is a light absorbent; Adding protective cover 01 is transparent acrylic board; Press button 15 is the control change-over switch of sighting target, can make control to the open and close of each module of tester; Receiving 09 be infrared receiver probe, receives from 7 control of remote controller signal shown in scheming; Display lamp 10 is the working station indicator of tester, and is yellow during work, green during standby; DC joint 12 is the power supply interface of main frame; Switch 11 is the physical switch of main frame power supply; Light-control knob 13 can be regulated the LED brightness of each sighting target module of tester, thus the brightness of adjustment sighting target, and over cap 14 is the baffle of light-control knob 13.
Referring to Fig. 5; The circuit theory diagrams of whole tester; The bare bones of this schematic diagram be can guarantee on the substrate 07 in the Liu Da district the drive current that passed through of all led light sources 15 all be consistent, and can regulate .. respectively through light-control knob 13 to the electric current in the Liu Da district
Referring to Fig. 6, the sighting target test symbol, one of sighting target 16 is the grade of test myopia and distance vision; 4 19 of sighting target is the scattered-light grade of test; 3 18 grades for the test anerythrochloropsia of sighting target, 2 17 of sighting target is the grade of test eye local ghost
Referring to Fig. 7 and 8, the remote controller main body, remote controller loam cake 20 is closely buckled on the remote controller lower cover 23, and remote controller key 21 is each module switch of tester and switching key; Infrared Lens 22 is responsible for launching after the remote signal focusing; Battery cover board 24 is closely buckled on the lower cover 23, guarantees to protect battery not fall down.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. medical viseon tester of LED, this viseon tester comprises sighting target panel (03), light source and main body housing and supplementary protection cover (01); It is characterized in that: adopt plastic shell (04) as main body housing; Said plastic shell (04) seals shell with the main body that base plate (08) is formed this tester; Be mainly viseon tester the protection supporting role is provided, its light source is for being evenly distributed on several LEDs light sources (15) of establishing in the said main body housing on the substrate (07); The material of said protective cover (01) is transparent acrylic.
2. the medical viseon tester of LED as claimed in claim 1 is characterized in that the electric current of the led light source (15) of this viseon tester receives Based Intelligent Control.
3. according to claim 1 or claim 2 the medical viseon tester of LED is characterized in that its sighting target panel (03) is compound sighting target panel, comprises nearly hypermetropia test, anerythrochloropsia assessment, and astigmatism test.
4. the medical viseon tester of LED as claimed in claim 3 is characterized in that one of the antimetropia vision sighting target (16) of its sighting target panel (03) has adopted blue more accurately formula ring, so that accurately assess vision.
5. according to claim 1 or claim 2 the medical viseon tester of LED is characterized in that said sighting target panel (03) is positioned at main body housing foremost, and said adding is provided with the surface and is the sighting target panel shaping piece (02) of light absorbent between the protective cover (01); Between said substrate (07) and its sighting target panel (03) light division board (06) is set, this division board outer surface spraying light diffuse-reflective material; Said led light source (15) is arranged in the back of main body housing uniformly; After making exiting surface and the light source of main body housing draw back certain distance; The light of the light source of said each LED fully mixes; Diffuser plate via the main body housing surface transmits, thereby guarantees that the observer can not see through the luminous bright spot that sighting target is observed light source (15), but performance uniform surface light source attribute.
6. the medical viseon tester of LED as claimed in claim 3 is characterized in that said sighting target panel (03) is positioned at main body housing foremost, and said adding is provided with the surperficial sighting target panel shaping piece (02) of light absorbent that is between the protective cover (01); Between said substrate (07) and its sighting target panel (03) light division board (06) is set, this division board outer surface spraying light diffuse-reflective material; Said led light source (15) is arranged in the back of lamp box uniformly; After making exiting surface and the light source of lamp box draw back certain distance; The light of the light source of said each LED fully mixes; Diffuser plate via the lamp box surface transmits, thereby guarantees that the observer can not see through the luminous bright spot that sighting target is observed light source (15), but performance uniform surface light source attribute.
7. the medical viseon tester of LED as claimed in claim 4 is characterized in that said sighting target panel (03) is positioned at main body housing foremost, and said adding is provided with the surperficial sighting target panel shaping piece (02) of light absorbent that is between the protective cover (01); Between said substrate (07) and its sighting target panel (03) light division board (06) is set, this division board outer surface spraying light diffuse-reflective material; Said led light source (15) is arranged in the back of lamp box uniformly; After making exiting surface and the light source of lamp box draw back certain distance; The light of the light source of said each LED fully mixes; Diffuser plate via the lamp box surface transmits, thereby guarantees that the observer can not see through the luminous bright spot that sighting target is observed light source (15), but performance uniform surface light source attribute.
8. the medical viseon tester of LED as claimed in claim 7 is characterized in that its sighting target panel (03) is divided into six blocks, and can carry out independently switch switching through the reception head (09) on the main frame; The LED lamp that these six blocks cover down uses dividing plate to separate, so that each block can be controlled brightness separately.
9. the medical viseon tester of LED as claimed in claim 8, it is characterized in that using remote controller independently to carry out and main frame between communication, accomplish all functions of main frame.
10. the medical viseon tester of LED as claimed in claim 9 is characterized in that the brightness of its sighting target can be carried out independent adjustment through light-control knob (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101842686A CN102805608A (en) | 2012-06-06 | 2012-06-06 | Medical LED (light emitting diode) vision test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101842686A CN102805608A (en) | 2012-06-06 | 2012-06-06 | Medical LED (light emitting diode) vision test instrument |
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| CN102805608A true CN102805608A (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101842686A Pending CN102805608A (en) | 2012-06-06 | 2012-06-06 | Medical LED (light emitting diode) vision test instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107224394A (en) * | 2017-06-23 | 2017-10-03 | 宁波优视优学健康科技有限公司 | A kind of adjusting means regarded for vision mist |
| CN107468205A (en) * | 2017-09-11 | 2017-12-15 | 刘寒冰 | The multi-functional automatic detection eyesight case that a kind of ophthalmology section office use |
| CN109920365A (en) * | 2017-12-11 | 2019-06-21 | 上海航空电器有限公司 | A kind of system and method for display human eye vision evaluation sighting target |
| CN110432859A (en) * | 2019-07-31 | 2019-11-12 | 刘葳 | A kind of vision testing method and device |
| CN110811534A (en) * | 2019-12-06 | 2020-02-21 | 张科宇 | Vision detection device |
Citations (6)
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| CN2189443Y (en) * | 1994-06-08 | 1995-02-15 | 赵瑞林 | Microcomputer intelligent vision detecting instrument |
| JPH08215145A (en) * | 1995-02-10 | 1996-08-27 | Towa:Kk | Visual acuity examination device |
| CN201578222U (en) * | 2009-06-17 | 2010-09-15 | 北京大学第三医院 | Visual chart lamp box with adjustable illumination |
| CN202128444U (en) * | 2011-06-16 | 2012-02-01 | 宁波明星科技发展有限公司 | Multifunctional short-distance used visual acuity tester |
| CN202146293U (en) * | 2011-04-07 | 2012-02-22 | 胡骏 | Self-service electronic visual chart |
| CN202776257U (en) * | 2012-06-06 | 2013-03-13 | 浙江铭洋照明科技股份有限公司 | Light-emitting diode (LED) medical vision tester |
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2012
- 2012-06-06 CN CN2012101842686A patent/CN102805608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189443Y (en) * | 1994-06-08 | 1995-02-15 | 赵瑞林 | Microcomputer intelligent vision detecting instrument |
| JPH08215145A (en) * | 1995-02-10 | 1996-08-27 | Towa:Kk | Visual acuity examination device |
| CN201578222U (en) * | 2009-06-17 | 2010-09-15 | 北京大学第三医院 | Visual chart lamp box with adjustable illumination |
| CN202146293U (en) * | 2011-04-07 | 2012-02-22 | 胡骏 | Self-service electronic visual chart |
| CN202128444U (en) * | 2011-06-16 | 2012-02-01 | 宁波明星科技发展有限公司 | Multifunctional short-distance used visual acuity tester |
| CN202776257U (en) * | 2012-06-06 | 2013-03-13 | 浙江铭洋照明科技股份有限公司 | Light-emitting diode (LED) medical vision tester |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107224394A (en) * | 2017-06-23 | 2017-10-03 | 宁波优视优学健康科技有限公司 | A kind of adjusting means regarded for vision mist |
| CN107468205A (en) * | 2017-09-11 | 2017-12-15 | 刘寒冰 | The multi-functional automatic detection eyesight case that a kind of ophthalmology section office use |
| CN109920365A (en) * | 2017-12-11 | 2019-06-21 | 上海航空电器有限公司 | A kind of system and method for display human eye vision evaluation sighting target |
| CN110432859A (en) * | 2019-07-31 | 2019-11-12 | 刘葳 | A kind of vision testing method and device |
| CN110811534A (en) * | 2019-12-06 | 2020-02-21 | 张科宇 | Vision detection device |
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Application publication date: 20121205 |