Optical pickup

Details Optical pickup Optical pickup

2007-09-25

2007-09-25

Hindi, Nabil (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S120000

Reexamination Certificate

active

10822836

ABSTRACT:
An optical pickup in which a plate2provided with a photodiode22is bonded to an optical bench1through an adhesive agent layer3in a state in which a minute gap α is maintained between the plate2and the optical bench1. Circular through holes27are formed in advance at a plurality of portions of the plate2. The adhesive agent layer3is formed as an adhesive agent injected into the through holes27at the plurality of portions is forced out downward through the through holes27and is cured in the state of having reached an upper surface12of the optical bench1. The amount of the adhesive agent injected with respect to each of the through holes is controlled so as to be fixed.

REFERENCES:
patent: 61-140126 (1986-08-01), None
patent: 3-102642 (1991-04-01), None
patent: 3-113725 (1991-05-01), None
patent: 63-65129 (1998-04-01), None
patent: 2002-342947 (2002-11-01), None

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