Recorders – Record receiver deforming
Patent
1978-02-24
1980-03-25
Cardillo, Jr., Raymond F.
Recorders
Record receiver deforming
1791003V, 346 76L, 3461351, G01D 1534, G11B 700, H04N 576
Patent
active
041953126
ABSTRACT:
An optical record blank structure comprises a disc-shaped substrate (e.g., glass), a layer of light-reflective material (e.g., aluminum) overlying a surface of the disc-shaped substrate, a coating of a transparent material (e.g., silicon dioxide) overlying the light-reflective layer and a coating of a moderately absorptive material (e.g., an organic dye such as fluorescein) overlying the dielectric coating. The coating parameters are chosen to establish an antireflective condition to a recording light beam incident on the disc surface. The transparent coating thickness is selected such that the transparent coating is optically passive to the recording light beam, i.e., the thickness of the transparent coating is selected to be an integer multiple of the half-wavelength of the recording light beam wavelength in the transparent material. With this structure the efficiency of energy coupling into the absorptive coating is enhanced by the antireflective condition, the reflective surface of the substrate and the thickness of the transparent coating.
REFERENCES:
patent: 3665483 (1972-05-01), Becker et al.
patent: 4023185 (1977-05-01), Bloom et al.
patent: 4097895 (1978-06-01), Spong
patent: 4101907 (1978-07-01), Bell et al.
Greenblatt, IBM Tech. Disc. Bulletin, vol. 14, No. 8, p. 2358, 1/72.
Bartolini Robert A.
Bell Alan E.
Cardillo, Jr. Raymond F.
RCA Corporation
Roehling J. E.
Tripoli J. S.
Whitacre E. M.
LandOfFree
Recorder and antireflective record blank having an optically pas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recorder and antireflective record blank having an optically pas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recorder and antireflective record blank having an optically pas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1404267