Camera speed color film with emulsion side micro-lenses
AssigneeEastman Kodak Company
InventorsRichard P. Szajewski, Lyn M. Irving
Life of this patent
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Abstract
Disclosed is a light sensitive photographic element comprising a support, a convergent micro-lens array, and an interposed light sensitive silver halide emulsion layer unit. Also disclosed is a camera combination and imaging method. Embodiments of the invention provide improved sensitivity and latitude in scene exposure range.
Claims40
A light sensitive photographic element comprising, in spooled form, a support, a convergent micro-lens array, and an interposed light sensitive silver halide emulsion layer unit.
A light sensitive photographic element suitable for image capture followed by machine reading to produce a single perspective two-dimensional color image, said element comprising, in spooled form, a two-sided-support
- (a) having disposed on said support a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and
- (b) having disposed on the side of said emulsion unit opposite the support a convergent micro-lens array located and sized to be sufficient to concentrate the image light of a single perspective of an image incident on an area of a micro-lens onto a smaller area of the emulsion layer units.
A light sensitive photographic element suitable for image capture by a camera followed by machine reading, said element comprising, in spooled form, a two-sided support
- (a) having disposed on said support a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and
- (b) having disposed on the opposing side of the emulsion layer unit from said support a micro-lens array comprising lenses having a full or partial spherical shape located and sized to be sufficient to concentrate the camera focused image light incident on an area of a micro-lens onto a smaller area of the emulsion layer units.
A light sensitive photographic element exhibiting a sensitivity of at least ISO-25 and being suitable for image capture followed by machine reading, said element comprising, in spooled form, a two-sided support
- (a) having disposed on said support a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and
- (b) having disposed on the side of said emulsion layer unit opposite to said support a convergent micro-lens array located and sized to be sufficient to concentrate the image light incident on an area of a micro-lens onto a smaller area of the emulsion layer units;
- whereby the sensitivity of the film is increased compared to the same film without the array.
A combination camera and light sensitive photographic element suitable for image capture followed by machine reading to produce a single perspective two-dimensional color image, said element comprising:
- (A) a camera having a lens system for capturing a single image perspective, and
- (B) a support, in spooled form, having disposed thereon a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and having disposed on the side of the emulsion layer unit opposite said support a convergent micro-lens array located and sized to be sufficient to concentrate the image light from the lens system incident on an area of a micro-lens onto a smaller area of the emulsion layer units.
A light sensitive photographic element exhibiting a sensitivity of at least ISO-25 and being suitable for image capture followed by machine reading, said element comprising, in spooled form, a support
- (a) having disposed on said support a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and
- (b) having disposed on the side of the emulsion layer opposite said support a convergent micro-lens array located and sized to be sufficient to concentrate the image light incident on an area of a micro-lens onto a smaller area of the emulsion layer units;
- whereby the latitude of the film is increased by at least 0.30 log E compared to the same film without the array.
A light sensitive photographic element comprising a support, a convergent micro-lens array, and an interposed light sensitive silver halide emulsion layer unit wherein the material that comprises the micro-lenses is selected so that the shape of the lenses is altered by photo processing.
Dependencies are inferred from the claim text.