Optical scanning device with lens-holder

Details Optical scanning device with lens-holder Optical scanning device with lens-holder

1994-09-19

1996-07-30

Hellner, Mark

Optical: systems and elements

Optical modulator

Light wave directional modulation

359814, G02B 2608, G02B 702

Patent

active

055417639

ABSTRACT:
In optical playback appliances, such as CD-players, the objective lens sits on a lens-holder that is mounted so as to swivel around an axis and that carries at least one coil. The axis of rotation of the lens-holder is secured to a housing. To allow the lens-holder (LH) to move easily, without being hampered by wires, in the optical scanning device, essentially composed of the lens-holder (LH) and the housing (G), the current required for the coils (S1, S2) flows through respective elastic, electroconductive fastening elements (FO, FU) to both ends (SO, SU) of the axis (N), and from said ends (SO, SU), electrically isolated from each other, to the coils (S1, S2), via respective strip conductors (LPO, LBU) on the lens-holder (LH). This optical scanning device with a lens-holder is useful in CD-players, video disk players, DRAW-disk players and in magneto-optical recorders and players.

REFERENCES:
patent: 4664476 (1987-05-01), Kasuga
patent: 4752117 (1988-06-01), Ichikawa et al.
patent: 4863240 (1989-09-01), Nakajima et al.
patent: 4978844 (1990-12-01), Ujihara
patent: 5241424 (1993-08-01), Watanabe
patent: 5289318 (1994-02-01), Sekine et al.
patent: 5428481 (1995-06-01), Ikegame et al.
Patent Abstracts Of Japan, vol. 10, No. 324, 5 Nov. 1986 & JP,A,61 131243, Fujitsu, Ltd., 18 Jun. 1986.

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