GB/T 40177-2021: Optics and optical instruments - Ophthalmology - Graduated dial scale

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Scope

This Standard gives specifications for the angular coordinate system to be used
in the design of scales, reticles or other display means incorporated in
instruments for determining optical data on human eyes or corrective lenses for
human eyes.

Basic Data

Standard ID	GB/T 40177-2021 (GB/T40177-2021)
Description (Translated English)	Optics and optical instruments - Ophthalmology - Graduated dial scale
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	C40
Word Count Estimation	6,622
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration