Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1981-12-09
1984-06-05
Psitos, Aristotelis M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369122, 350287, G11B 700, G02B 718
Patent
active
044532415
ABSTRACT:
An optical scanning unit for scanning recording tracks of a record carrier with a radiation beam. The beam is emitted by a radiation source arranged at one end of a tubular member and is concentrated to a radiation spot by a lens system arranged at the other end of the tubular member. A double prism disposed between the source and lens system splits-off a reflected secondary radiation beam and directs it laterally towards an electronic output device through a lateral aperture in the tubular member. The output device converts the modulated reflected radiation into an electrical signal. The radiation source and the double prism are radially and axially aligned within the required tolerances on a metal prism support which, within an adjustment range, can be moved axially relative to the tubular member and which can be rotated to a limited extent. The support is fixed relative to the tubular member after the reflected beam has been made to impinge on the radiation-sensitive means in the correct manner by said movement and rotation.
REFERENCES:
patent: 4067044 (1978-01-01), Maeda et al.
patent: 4334300 (1982-06-01), Arquie et al.
patent: 4337531 (1982-06-01), Willemsen
van Alem Antonius A. M.
Van de Veerdonk Johannes T. A.
Briody Thomas A.
Mayer Robert T.
Psitos Aristotelis M.
Tamoshunas Algy
U.S. Philips Corporation
LandOfFree
Optical scanning unit for reading information from an optical re does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical scanning unit for reading information from an optical re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanning unit for reading information from an optical re will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1501728