Title:
光学走査装置
Document Type and Number:
Japanese Patent JP2008533518
Kind Code:
A
Abstract:
An optical scanning device ( 1 ) includes a radiation source ( 7 ), a detector ( 23 ) and a beam splitter ( 9 ). The radiation source ( 7 ) provides an incident radiation beam ( 4, 20 ) along a first optical path ( 19 a) for scanning an information layer ( 2 ) of an optical record carrier ( 3 ). The detector ( 23 ) detects at least a portion of the radiation beam ( 22 ) reflected from the optical record carrier ( 3 ). The beam splitter ( 9 ) transmits the incident radiation beam ( 4 ) received from the radiation source along the first optical path ( 19 a) towards the optical record carrier. The beam splitter ( 9 ) also transmits the reflected beam ( 22 ) received from the optical record carrier ( 3 ) along a second, different optical path ( 19 b) towards the detector. The optical scanning device further includes a beam-deflecting element ( 30; 130; 230; 330; 630; 830; 930 ) positioned on the second optical path ( 19 b) between the beam splitter ( 9 ) and the detector ( 23 ). The beam-deflecting element ( 30; 130; 230; 330; 630; 830; 930 ) is arranged to controllably deflect the path of the reflected radiation beam ( 22 ) for adjusting the lateral position of said reflected radiation beam incident upon the detector ( 23 ) over a predetermined range.
Inventors:
Tuker, Tunis Way
Lindenbaum, Kuhn Thehaev
Hendricks, Bernardus Harway
Stalinga, Surut
Immink, albert hurye
Kaipel, Stain
Chen, Min S
Lindenbaum, Kuhn Thehaev
Hendricks, Bernardus Harway
Stalinga, Surut
Immink, albert hurye
Kaipel, Stain
Chen, Min S
Application Number:
JP2008500320A
Publication Date:
August 21, 2008
Filing Date:
March 06, 2006
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G02B26/10; G02F1/13; G11B7/135
Domestic Patent References:
| JPH06131689A | 1994-05-13 | |||
| JP2003272180A | 2003-09-26 | |||
| JP2004319029A | 2004-11-11 | |||
| JP2006509263A | 2006-03-16 | |||
| JPH07307026A | 1995-11-21 | |||
| JPH06131675A | 1994-05-13 | |||
| JPH0620291A | 1994-01-28 | |||
| JPH05325247A | 1993-12-10 | |||
| JP2007513457A | 2007-05-24 |
Foreign References:
| WO2004051323A1 | 2004-06-17 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Hitoshi Nagasaka
Shinsuke Onuki
Tadashige Ito
Hitoshi Nagasaka