Spectrally sensitized photosensitive silver halide emulsion

Claim 2

A photosensitive silver halide emulsion containing as a green sensitiver a dye of the formula ##STR7## wherein R is hydrogen or chlorine.

Claim 3

The emulsion of claim 1 wherein R is hydrogen.

Claim 4

The emulsion of claim 1 wherein R is chlorine.

Claim 5

The emulsion of claim 2 wherein said dye is the sole sensitizing dye.

Claim 6

The emulsion of claim 1 which includes at least a second sensitizing dye to provide panchromatically sensitized emulsions.

Claim 7

A photosensitive element comprising a support carrying a red-sensitive silver halide emulsion; a green-sensitive silver halide emulsion and a blue-sensitive silver halide emulsion; wherein said green-sensitive silver halide emulsion containing as a spectral sensitizer is a dye of the formula: ##STR8## wherein R is hydrogen or chlorine.

Claim 8

A photosensitive element comprising a support carrying a red-sensitive silver halide emulsion; a green-sensitive silver halide emulsion and a blue-sensitive silver halide emulsion; wherein said green-sensitive silver halide emulsion containing as a spectral sensitizer is a dye of the formula: ##STR8## wherein R is hydrogen or chlorine.

Claim 9

The element of claim 6 wherein R is hydrogen.

Claim 10

The element of claim 6 wherein R is chlorine.

Claim 11

The element of claim 7 wherein said dye is the sole spectral sensitizer in said green emulsion.

Claim 12

The element of claim 6 wherein each of said emulsions has associated therewith a dye image color providing material.

Claim 13

The element of claim 10 wherein said red-sensitive silver halide emulsion has associated therewith a cyan dye developer; said green-sensitive silver halide emulsion has associated therewith a magenta dye developer and said blue-sensitive silver halide emulsion has associated therewith a yellow dye developer.

Claim 14

The element of claim 6 wherein said dye is present at a level of about 0.5 to 5 mg/g of silver.

Claim 15

A photographic film unit which comprises, in combination: a photosensitive element having a diffusion transfer image-receiving element affixed at least one edge thereof, said photosensitive element affixed at least one edge thereof, said photosensitive element comprising a support carrying: (a) a red-sensitive silver halide emulsion having associated therewith a cyan dye developer; (b) a green-sensitive silver halide emulsion having associated therewith a magenta dye developer; (c) a blue-sensitive silver halide emulsion having associated therewith a yellow dye developer; said green-sensitive emulsion including as the sole spectral sensitizer a dye of the formula ##STR9## wherein R is hydrogen or chlorine; an alkaline processing composition permeable and dyeable layer wherein said photosensitive and said image-receiving elements are adapted to be superposed, the support layers of each comprising the extremities of the superposed structure.

Claim 16

A photographic film unit which comprises, in combination: a photosensitive element having a diffusion transfer image-receiving element affixed at least one edge thereof, said photosensitive element affixed at least one edge thereof, said photosensitive element comprising a support carrying: (a) a red-sensitive silver halide emulsion having associated therewith a cyan dye developer; (b) a green-sensitive silver halide emulsion having associated therewith a magenta dye developer; (c) a blue-sensitive silver halide emulsion having associated therewith a yellow dye developer; said green-sensitive emulsion including as the sole spectral sensitizer a dye of the formula ##STR9## wherein R is hydrogen or chlorine; an alkaline processing composition permeable and dyeable layer wherein said photosensitive and said image-receiving elements are adapted to be superposed, the support layers of each comprising the extremities of the superposed structure.

Claim 17

The film unit of claim 13 including a rupturable container retaining an aqueous alkaline processing composition affixed to one edge of said photosensitive element and said image-receiving element and adapted to rupture its contents intermediate said superposed photosensitive and image-receiving elements.

Claim 18

The film unit of claim 14 wherein the support layer of said image-receiving element is transparent.

Claim 19

The film unit of claim 15 in which said unit is a composite structure comprising said photosensitive element and said image-receiving element permanently affixed to the other in superposed relationship, the support layers of each of said elements being outermost.

Claim 20

The film unit of claim 13 wherein R is hydrogen.

Claim 21

The film unit of claim 13 wherein R is chlorine.

Claim 22

As a novel composition of matter ##STR10##

Claim 23

As a novel composition of matter ##STR10##

Claim 24

As a novel composition of matter ##STR11##

Claim 25

As a novel composition of matter ##STR11##