Polarimetric image recorder

Details Polarimetric image recorder Polarimetric image recorder

1982-07-06

1984-12-25

Punter, William H.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365119, G02B 530, G02B 2718, G11C 1304

Patent

active

044900163

ABSTRACT:
A polarimetric image recorder which records only the net polarization of the viewed scene. An optical lens system projects the light originating from the viewed scene onto a thin layer of an alkali halide crystal containing anisotropic color centers. Polarized light reorients the color centers and creates a net polarization in the layer. The net polarization of the layer is read by such means as shining polarized light through the layer and then through a polarizer set perpendicularly to the polarization of the light source. Whatever light is viewed through the reader represents a net polarization in the scene.

REFERENCES:
patent: 3466616 (1969-09-01), Bron et al.
patent: 3727194 (1973-04-01), Schneider
patent: 3771150 (1973-11-01), Schneider
patent: 3934234 (1976-01-01), Burt
patent: 4038647 (1977-07-01), Schneider
Schneider et al., "Extinction Technique For Optical Storage Using Anisotrc Color Centers in Alkali Halides", App. Phys. Lett., 7-1974, pp. 77-79.
Cassasent et al., "Combined Suppressive Extinction Writing Using M & MA Centers in Li-Doped NAF", App. Phys. Lett., 11-1976, pp. 660-662.
Shono et al., "Image Recording on F.sub.A Centered Crystals by He-Ne Laser", Appl. Phys. Lett., 3-1973, pp. 299-300.

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