Laser power measuring jig for optical disk unit

Details Laser power measuring jig for optical disk unit Laser power measuring jig for optical disk unit

1991-12-19

1993-11-23

Rosenberger, Richard A.

Optics: measuring and testing

Photometers

Photoelectric

356243, 369 54, 369116, G01J 142, G11B 390

Patent

active

052649113

ABSTRACT:
A laser power measuring jig is adapted for use in measuring a laser power of a laser beam which is emitted from an optical head of an optical disk unit which records and/or reproduces information on and/or from a medium. The laser power measuring jig supplies power information related to the laser power of the laser beam to a power meter which measures the laser power. The laser power measuring jig includes a main jig body which has a size and a shape which are approximately the same as those of the medium, and this main jig body is loaded into the optical disk unit. The laser power measuring jig also includes a mechanism for outputting the power information outside the optical disk unit and supplying the laser power information to the power meter when the main jig body is loaded into the optical disk unit.

REFERENCES:
patent: 3966325 (1976-06-01), Mohler
patent: 4832487 (1989-05-01), Mikuriya et al.
patent: 4988194 (1991-01-01), Hara et al.

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