Silver halide holographic sensitive material and system for taking holographic images by using the same
AssigneeFuji Photo Film Co., Ltd.
InventorMikio Ihama
Life of this patent
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Abstract
A silver halide-holographic sensitive material is provided and has a support and at least one photosensitive emulsion layer, with the photosensitive emulsion layer containing silver halide particles whose number average projected-area diameter is from 10 nm to 80 nm.
Claims21
A silver halide-holographic sensitive material comprising:
- a support;
- and
- at least one photosensitive silver halide emulsion layer comprising silver halide,
- wherein a number average diameter of circles equivalent to projected areas of the silver halide particles is from 10 nm to 80 nm, and
- the silver halide particles are subjected to reduction sensitization in addition to gold-chalcogen sensitization in chemical sensitization thereof.
A silver halide-holographic sensitive material comprising:
- a support;
- at least one green-sensitive silver halide emulsion layer having an absorption maximum of 500 nm to 600 nm;
- and
- at least one red-sensitive silver halide emulsion layer having an absorption maximum of 600 nm to 750 nm.
A silver halide-holographic sensitive material comprising:
- a support;
- and
- at least one photosensitive silver halide emulsion layer comprising silver halide,
- wherein a number average diameter of circles equivalent to projected areas of the silver halide particles is from 10 nm to 80 nm, and
- the silver halide particles are subjected to spectral sensitization by three or more spectral sensitizing dyes.
A silver halide-holographic sensitive material comprising:
- a support;
- and
- at least one photosensitive silver halide emulsion layer comprising silver halide,
- wherein a number average diameter of circles equivalent to projected areas of the silver halide particles is from 10 nm to 80 nm, and
- the at least one photosensitive silver halide emulsion layer further comprises:
- a low molecular-weight gelatin having a weight average molecular weight of 3,000 to 50,000;
- and a gelatin having a weight average molecular weight of 80,000 or more.
A holography system, wherein a transmission hologram is recorded at two different wavelengths in a sheet of silver halide photosensitive material by synchronizing only two different pulsed lasers, one of the two different pulsed lasers having an emission wavelength of 500 nm to less than 600 nm and the other of the two different pulsed laser having an emission wavelength of 600 nm to less than 700 nm.
Dependencies are inferred from the claim text.