Method and apparatus for making color separations from a color transparency

Claim 3

The method of claim 1 in which the steps are repeated for three different light sources to make three film exposures.

Claim 4

The method of claim 2 in which the light sources are blue light having an energy output of 400 to 500 nanometers wave length, green light with an energy output from 500 to 600 nanometers wave length and red light with an energy output of 600 to 700 nanometers wave length.

Claim 5

The method of claim 1 in which the films have the same or different emulsion thereon.

Claim 6

The method of claim 1 in which the light source having the limited spectral band width is directed through the masked transparency.

Claim 7

The method of claim 5 in which the imaged light which has passed through to the film from the masked transparency is filtered with a filter which absorbs light energy outside of the limited spectral band width of the light source.

Claim 8

The method of claim 6 in which the imaged light is directed to the film through a half tone screen.

Claim 9

The method of claim 1 in which each light source is disposed closely adjacent to and has a dimensional size closely approaching the physical dimensions of the masked transparency.

Claim 10

A dark room camera for making color separations comprising: a frame, a copy holder member slidably mounted on the frame near one end thereof, said copy holder member having a reflective copy board and a mounting for an imaged copy with an opening therein corresponding with the size of the imaged copy, a light source associated with the copy holder member to direct light onto the imaged copy and to produce imaged light therefrom, a film holder member rigidly secured to the other end of said frame, a focusing lens positioned between the film holder member and the copy holder and connected to the film holder member by an expandable bellows which encloses the area between the lens and the film holder member to direct light through the lens to said film holder member, said focusing lens being mounted on the frame to be adjustable toward and away from said film holder member, said light source including a plurality of lights each generating radiant energy having a limited and different spectral wave length; means mounting said light source on said copy holder member for adjustment relative thereto so that only one of said lights is in a position to illuminate the imaged copy in the copy holder member at any one time, said lights being mounted on a frame within the copy holder member and being slidably mounted within the copy holder member to adjustably position each light selectively adjacent the opening therein, and means for adjustably positioning the light mounting frame with respect to the copy holder member from without said member to transmit light through the imaged copy mounted on the copy holder member.

Claim 11

A dark room camera for making color separations comprising: a frame, a copy holder member slidably mounted on the frame near one end thereof, said copy holder member having a reflective copy board and a mounting for an imaged copy with an opening therein corresponding with the size of the imaged copy, a light source associated with the copy holder member to direct light onto the imaged copy and to produce imaged light therefrom, a film holder member rigidly secured to the other end of said frame, a focusing lens positioned between the film holder member and the copy holder and connected to the film holder member by an expandable bellows which encloses the area between the lens and the film holder member to direct light through the lens to said film holder member, said focusing lens being mounted on the frame to be adjustable toward and away from said film holder member, said light source including a plurality of lights each generating radiant energy having a limited and different spectral wave length; means mounting said light source on said copy holder member for adjustment relative thereto so that only one of said lights is in a position to illuminate the imaged copy in the copy holder member at any one time, said lights being mounted on a frame within the copy holder member and being slidably mounted within the copy holder member to adjustably position each light selectively adjacent the opening therein, and means for adjustably positioning the light mounting frame with respect to the copy holder member from without said member to transmit light through the imaged copy mounted on the copy holder member.

Claim 12

The dark room camera of claim 9 in which the light source is comprised of red, green and blue lights which are selectively positioned and energized.

Claim 13

The dark room camera of claim 9 in which each of said lights has a physical size approximately equal to the dimensions of the opening in the copy holder member in which the imaged copy is mounted.

Claim 14

The dark room camera of claim 9 and including means for removably mounting filters between the lights and the focusing lens facing the copy holder member.