Thermal deformation record device with bleachable dye

Details Thermal deformation record device with bleachable dye Thermal deformation record device with bleachable dye

1979-01-08

1981-05-26

Miller, Jr., George H.

Recorders

Record receiver deforming

346 11, 3461351, G01D 1502, G01D 1534

Patent

active

042701309

ABSTRACT:
In accordance with the present invention, the optical characteristics of a thermal deformation record device are so altered that the device can be read back using the same beam as was used for recording. Moreover, the read beam can be used for playback at an arbitrarily high power level to enhance the signal-to-noise ratio of the recovered signal and yet not damage the deformation recording.

REFERENCES:
patent: 3169061 (1965-02-01), Hudson
patent: 3269839 (1966-08-01), Altman
patent: 3745009 (1973-07-01), Jenkins et al.
patent: 3769019 (1973-10-01), Wiese, Jr. et al.
patent: 3787873 (1974-01-01), Sato et al.
patent: 4081278 (1978-03-01), Dedinas et al.
patent: 4088497 (1978-05-01), Brown et al.
patent: 4097895 (1978-06-01), Spong

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