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Computation of Unwanted Sphere and Cylinder in the Periphery of a Spectacle Lens

 

作者: GLENN FRY,  

 

期刊: American Journal of Optometry and Physiological Optics  （OVID Available online 1977）
卷期: Volume 54, issue 9  

页码: 609-616

 

ISSN:0093-7002

 

年代: 1977

 

出版商: OVID

 

关键词: ophthalmic lens design;base curve;peripheral power;ANSI Z80.1 Standard (1972);tolerances;thickness;formulas;computer programs

 

数据来源: OVID

 

摘要:

The author discusses practical issues relating to optometrists ordering and laboratories supplying ophthalmic lenses that meet the ANSI Z80.1 Standard (1972) for minimizing unwanted spherical and cylindrical power in the periphery of lenses. He spells out the optical principles and formulas needed to develop a computer program than can be used by optometrists and opticians for designing lenses that meet the Z80.1 Standard.

 

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