Lens-refracting characteristic measuring apparatus

Details Lens-refracting characteristic measuring apparatus Lens-refracting characteristic measuring apparatus

2007-11-27

2007-11-27

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

Lens or reflective image former testing

C356S127000, C351S200000, C351S204000

Reexamination Certificate

active

11043614

ABSTRACT:
A lens-refracting characteristic measuring apparatus includes a measuring optical device to measure refracting characteristics of eyeglass lenses, an input device to input a pupillary distance of eyes of a person wearing eyeglasses, and an arithmetic and control circuit for obtaining refracting characteristics of the eyeglass lenses in positions of centers of right and left pupils of the person wearing the eyeglasses based on the pupillary distance of right and left eyes of the person wearing the eyeglasses input by the input device and the refracting characteristics measured by the measuring optical device.

REFERENCES:
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patent: 4212538 (1980-07-01), Esmond
patent: 5152067 (1992-10-01), Kurachi et al.
patent: 5365286 (1994-11-01), Masuda
patent: 2004/0189935 (2004-09-01), Warden et al.
patent: 63-113419 (1988-05-01), None
patent: 08-029292 (1996-02-01), None

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