Title:
ONE-TRACK ADJUSTMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/132924
Kind Code:
A2
Abstract:
A one-track adjustment device of the present invention comprises: an optical pickup including a laser diode, a diffraction grating for dividing the light emitted from the laser diode into a main beam and a plurality of sub-beams, and a main beam receiving part for receiving the main beam and/or a sub-beam receiving part for receiving the sub-beams; a diffraction grating jig for rotating the diffraction grating around an optical axis; a signal image display unit for receiving a first signal outputted from the main beam receiving part and/or a second signal outputted from the sub-beam receiving part; a camera for capturing the images displayed on the signal image display unit; and a control unit for controlling the operations of the diffraction grating jig and determining automatically whether the main beam and the sub-beams trace one track by capturing a change of the images captured through the camera when the main beam and the sub-beams trace the same track of the optical disk according to the rotation of the diffraction grating.
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Inventors:
KIM, Wan Soo (602 sungyoung bil-la, 18-5 Yangjae dong, Seocho-gu, Seoul 137-888, 137-888, KR)
김완수 (서울특별시 서초구 양재동 18-5 성영빌라 602, 137-888 Seoul, 137-888, KR)
김완수 (서울특별시 서초구 양재동 18-5 성영빌라 602, 137-888 Seoul, 137-888, KR)
Application Number:
KR2011/002817
Publication Date:
October 27, 2011
Filing Date:
April 20, 2011
Export Citation:
Assignee:
BIOPTRO CO., LTD. (B 6-12 GongseBokhapdanji, Gongse-dong Giheung-gu, Yongin-si Gyeonggi-do 446-902, 446-902, KR)
바이옵트로 주식회사 (경기도 용인시 기흥구 공세동 공세복합단지 비6-12, 446-902 Gyeonggi-do, 446-902, KR)
KIM, Wan Soo (602 sungyoung bil-la, 18-5 Yangjae dong, Seocho-gu, Seoul 137-888, 137-888, KR)
바이옵트로 주식회사 (경기도 용인시 기흥구 공세동 공세복합단지 비6-12, 446-902 Gyeonggi-do, 446-902, KR)
KIM, Wan Soo (602 sungyoung bil-la, 18-5 Yangjae dong, Seocho-gu, Seoul 137-888, 137-888, KR)
International Classes:
G11B7/09; G11B7/08; G11B7/135
Attorney, Agent or Firm:
CHO, Ick Hoon (13F Hyunjuk Bldg, 832-41 Yeoksam dong Gangnam-gu, Seoul 135-936, 135-936, KR)
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Claims: