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
1984-12-18
Cardillo, Jr., Raymond F.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
350286, 369 46, 425110, G11B 700
Patent
active
044894082
ABSTRACT:
A beam-splitting prism provided with a roof-edge prism is described. The roof-edge prism is made of a cured transparent synthetic material and can be arranged on a surface of the beam-splitting prism in a simple and cheap manner.
REFERENCES:
patent: 2178245 (1939-10-01), Schwarz
"PCM-Schallplatte fur die 80-er Jahre", Radio Mentor, vol. 45, 1979, pp. 138-140.
Amendt Herman M. A.
Verhoeven Johannes M. G.
Cardillo, Jr. Raymond F.
Mayer Robert T.
Tamoshunas Algy
U.S. Philips Corporation
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