Lens meter

Details Lens meter Lens meter

2006-08-08

2006-08-08

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Lens or reflective image former testing

Reexamination Certificate

active

07088439

ABSTRACT:
A lens meter having a measurement optical system including a light-emitting optical system, emitting a measurement luminous flux to an eyeglass lens, and a light-receiving optical system having a light-receiving element, receiving the measurement luminous flux passing through the eyeglass lens, an eyeglass holding device between the light-emitting and light-receiving systems, and an arithmetic control circuit computing characteristics of the lens based on receiving element output. The holding device includes a lens receiver supporting the lens, and an eyeglass sandwiching unit, which sandwiches the eyeglasses. The lens receiver is freely movable between the measurement optical path of the measurement optical system and a withdrawal position outside the path, and is moved in the withdrawal position after the eyeglasses have been sandwiched by the sandwiching unit.

REFERENCES:
patent: 6778264 (2004-08-01), Fukuma et al.
patent: 6950180 (2005-09-01), Fukuma et al.
patent: 61-178439 (1986-11-01), None
patent: 09-257644 (1997-10-01), None

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