LCD panel test system

Details LCD panel test system LCD panel test system

1996-01-24

1997-11-18

Hantis, K.

Optics: measuring and testing

By shade or color

With color transmitting filter

G01N 2125

Patent

active

056893418

ABSTRACT:
A LCD test system is able to adjust the differences in focal point lengths caused by chromatic aberration without increasing the size of the camera system and its manufacturing cost. In addition to the conventional structure, the parallel plates are inserted in the pockets of the rotation plate along with each of the four types of optical filters such as red, green, blue and transparency. Therefore, the differences in the focal point lengths due to the chromatic aberration are adjusted without increasing the size of the camera system and its manufacturing cost drastically.

REFERENCES:
patent: 5022740 (1991-06-01), Maziorka
patent: 5212536 (1993-05-01), Ball et al.

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