Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2005-07-13
2010-11-30
Young, Wayne R (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S112240
Reexamination Certificate
active
07843777
ABSTRACT:
A method for assembling an optical pickup apparatus for recording/reproducing a high density DVD, DVD and CD including two objective lens and three laser light sources, the objective lenses being provided on the lens holder having an actuator base for supporting the actuator, the method for assembling the optical pickup apparatus comprises the steps of adjusting a first tilt angle of the actuator base so that a coma aberration of a spot formed by the first light beams decreases when the first light beams are converged onto the first recording medium via the first objective lens, and adjusting a second tilt angle formed between the second objective lens and the lens holder so that a coma aberration of a beam spot formed by the second light beams decreases when the second light beams are converged onto the second recording medium via the second objective lens.
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Office Action issued for Chinese Application No. 200500240714, Apr. 4, 2008.
Fujii Hideyuki
Fujiwara Katsumi
Kurogama Tatsuji
Yagi Katsuya
Cohen Pontani Lieberman & Pavane LLP
Danielsen Nathan A
Konica Minolta Opto Inc.
Young Wayne R
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