

LY-220A LCD Visual Chart
Features:
1,Unique intelligent function: Customer uses direction keys on the controller to answer instrument according to his/her judgment of the optotypes randomly appeared on the screen, system automatically speaks out the best value of eyesight.
2,Screen Brightness can be adjusted to be fit for the environment. The max screen brightness is 250cd/m2 according to national standard.
3,Delicate design,high definition display: This instrument is designed with professional video and audio multimedia processing technology, with rapid response and convenient operation.
4,With protecting function to ensure long lifespan of the screen.
5,Compatible with multifold types of video and audio files.
6,Accurate and exact, effective distance is 1-6m, can be adjusted to the minimum distance(1m) for crowded area.
7,With the maximum 3 lines and 8 rows of optotypes showing on screen, convenient for test.
8,Numerous option of optotypes: international C optotypes,E optotypes,letter optotypes,children optotypes,numeric optotypes,astigmatic optotypes,cross optotypes,binocular balance optotypes,color blindness optotypes, and so on. 3D-types instrument is designed with stereo polarization specially used for examine of stereo vision and binocular balance.
9,Convenient and quick installation: simply hang or place on solid surface, easy to maintenance.
10,LCD screen with the minimum 0.248mm of dot pitch and high resolution, vivid to display optotypes.
11,Powerful extended function: instrument can be used as a computer display, or as a multimedia player with U disc.
12,Allows to connect with AV or YPbPr signal.

Specifications:
| Technical Data |
LY-185 |
LY-215 |
LY-220A |
LY-230(3D) |
| Screen Size |
18.5'' |
21.5'' |
22" |
23" |
| Packing Dimension |
52x 1 2x41cm |
60x13x45cm |
58.5x1 8x50cm |
68x1 2x45cm |
| G.W. |
4.6kg |
5.3kg |
6.5kg |
5.6kg |
FAQ
What warranty can you offer?
We offer 1 year warranty for most products, and 3 years warranty for some top quality products. At the same time, we provide lifetime after-sales support, free training, free installation instructions, free troubleshooting services and so on.
How long is the delivery time?
For regular products, normally it takes about 1 week to prepare the products, and 5-7 working days for shipping. For custom products, the preparation may take longer time.
Can I visit your factory?
Yes. We warmly welcome you to our factory anytime. Our factory is located in Chongqing, China. You can also check products in our showroom by video chat.
What's the minimum order quantity of your products?
For machines, the MOQ is 1 unit or set. For accessories and consumeables, the MOQ is different by products, it may be from 5 to 10000.
Can you customize the products with my own logo and label?
Yes, we can do that for free. Logo and label can be made according to your requirements.
Is there additional discount for distributors?
Yes. We offer discount for distributors and bulk order buyers. You can contact us to get special prices.
Services
Packaging
Chongqing Vision Star Optical Co., Ltd - Optometry & Ophthalmic Equipment Manufacturer Since 1999
Certificates
Chongqing Vision Star Optical Co., ltd is a professional manufacturer of ophthalmic equipment, optometry and optical lab equipment. We have been in the field of ophthalmology since 1999. Our products include
slit lamp,
tonometer,
fundus camera,
ophthalmic A scan biometer,
ophthalmic AB scan,
pachymeter,
auto perimeter,
phaco emulsifier,
corneal topography machine,
ophthalmoloscope,
retinoscope,
ophthalmic operation microscope,
visual electrophysiology system,
ophthalmic OCT,
optical biometer,
ophthalmic laser,
auto refractometer,
vision screener,
auto lensmeter,
manual lensmeter,
auto phoropter,
manual phoropter,
LCD vision chart,
LED vision chart,
near vision tester,
ophthalmic unit,
keratometer,
trial frame,
trial lens set,
auto lens edger,
hand lens edger,
ophthalmic motorized table and so on. We have rich exporting experiences, and our products have been sold to over 150 countries. We warmly welcome every friend worldwide to visit our company or video chat with us to inspect our showroom and products.