Optics: measuring and testing – Lens or reflective image former testing – For optical transfer function
Patent
1996-09-13
1998-10-27
Pham, Hoa Q.
Optics: measuring and testing
Lens or reflective image former testing
For optical transfer function
G01B 900
Patent
active
058284460
ABSTRACT:
A method of continuously and automatically inspecting ophthalmic lenses. The lenses are continuously moved along a predetermined path to move each of the lenses, one at a time, into a lens inspection position. Each time one of the lenses moves into the lens inspection position, a light source is activated to generate a one light pulse, that light pulse is directed through the one lens and onto an array of pixels and a set of signals is generated representing the intensity of light incident on the pixel array. The set of signals is processed according to a predetermined program to determine at least one condition of the lens, and an output signal is generated representing that one condition.
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Johnson & Johnson Vision Products Inc.
Pham Hoa Q.
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