Method and apparatus for measuring performance of a lamp

Details Method and apparatus for measuring performance of a lamp Method and apparatus for measuring performance of a lamp

2005-12-13

2005-12-13

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C445S063000

Reexamination Certificate

active

06974941

ABSTRACT:
A light source testing system includes a light source to form an image, an image capturing apparatus capturing the image by a plurality of pixels, and an image processing apparatus calculating a plurality of gray levels of the plurality of pixels to determine a characteristic parameter of the light source.

REFERENCES:
patent: 4509077 (1985-04-01), Therrien
patent: 5153745 (1992-10-01), Brandkamp et al.
patent: 5978614 (1999-11-01), Takeuchi
patent: 2003/0075687 (2003-04-01), Suzuki et al.

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