Optical data recording and reproducing apparatus

Details Optical data recording and reproducing apparatus Optical data recording and reproducing apparatus

1992-08-12

1993-10-26

Ben, Loha

Optical: systems and elements

Lens

With support

359811, 359822, G02B 702

Patent

active

052571459

ABSTRACT:
An optical data recording and reproducing apparatus including an objective lens for converging light onto an optical disc, and a lens holder which supports the objective lens. The lens holder has a circular opening and a lens holding surface provided on a periphery of the circular opening. One of either the objective lens or the lens holding surface of the lens holder has a symmetrical tapered surface which is adapted to come into contact with the other of either the lens holding surface or objective lens, respectively.

REFERENCES:
patent: 4088396 (1978-05-01), Edelstein
patent: 4655548 (1987-04-01), Jue
patent: 4668047 (1987-05-01), Okura
patent: 4969715 (1990-11-01), Nishihara et al.
patent: 5068844 (1991-11-01), Tanaka
patent: 5103438 (1992-04-01), Masunaga et al.
English Language Abstract of WIPO--Dec. 20, 1984.

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