Light source apparatus, its manufacturing method and...

Details Light source apparatus, its manufacturing method and... Light source apparatus, its manufacturing method and...

2006-12-05

2006-12-05

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

Position or displacement

C356S622000, C445S004000, C445S064000

Reexamination Certificate

active

07145665

ABSTRACT:
The light emitted from a focal position-detecting light source38and reflected from a reflector12is projected onto a screen341,and a projected image on the screen341is detected by a focal position-detecting camera35.Based on this projected image, the focal position-detecting light source38is moved by a position adjusting system37so as to place the focal position-detecting light source38at a focal position of the reflector12,and the position of the focal position-detecting light source38at this time is detected as the focal position of the reflector12.When the focal position of the reflector12is detected, the projected image on the screen341detected by the focal position-detecting camera35is used, and, therefore, the conventional measurement by a three dimensional measuring instrument is made unnecessary, thereby improving the working efficiency.

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