visual acuity chart

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SineImage ISO 12233:2014 E-SFR test charts-Extended Model ISO 12233:2014 Edge SFR Type Reflective Size 1X,2X,4X Ratio 4:3/16:9 Chart Size Standard Enh...

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.... Through the field, it will be found that there is a huge central scotoma in the field of patients with optic atrophy, ...

... Table Projector Lamp Chart Projection Lamp ►Quick Detail: This product is ACP-1800 12V50W Table Projector Lamp Chart Pr...

...ISO standard 12233, published in February 2014. Next to the TE268 and TE253 (sinusoidal Siemens stars) and the TE252 ( appraisal of resolutio...

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... coating color shall not exceed the signed template ① Under 40W fluorescent lamp or natural light, the is more than 1.0, and the obje...

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... with temperature measurement, abnormal number, accumulated number of people with temperature measurement, personal face information and temperatur...

... detailed content: A 75-inch interactive flat panel can be particularly useful in subjects that require detailed diagrams or representations...