Light color control apparatus

Claim 2

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, and chamber means in the path of the beam for mixing the colored and white portions of the beam, said cam means having a surface defining the limits between which said holder means can be moved by said cam means and between which said filter means can be moved into and out of the beam, said filter means including one homogeneously dense filter of a given color movable into positions in which said filter is held partly in the path of the beam so as partly to intercept the beam and partly color the beam the given color, said filter being moved between the limits by said holder means, said filter alone defining the color density of the given color imparted to the beam and defining the maximum and minimum densities for the given color when positioned at the limits, said filter being continuously adjustable throughout the whole density range of the given color.

Claim 3

An apparatus, as in claim 1, wherein said cam means includes manually adjustable wheel means for permitting adjustment of said cam means manually.

Claim 4

An apparatus, as in claim 2, further comprising digital indicator meAns coupled to said wheel means for indicating the degree to which said wheel has been turned.

Claim 5

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, said cam means including manually adjustable wheel means for permitting adjustment of said cam means manually, said wheel means including a plurality of peripheral gear-like teeth, and digital indicator means having spur gear means engaging said teeth so as to be turned when said wheel means is turned, said indicator means indicating digitally the extent to which said wheel means has been turned, said cam means having a surface defining the limits between which said holder means can be moved by said cam means and between which said filter means can be moved into and out of the beam, said filter means including one homogeneously dense filter of a given color movable into positions in which said filter is held partly in the path of the beam so as partly to intercept the beam and partly color the beam the given color, said filter being moved between the limits by said holder means, said filter alone defining the color density of the given color imparted to the beam and defining the maximum and minimum densities for the given color when positioned at the limits, said filter being continuously adjustable throughout the whole density range of the given color.

Claim 6

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, said cam means including manually adjustable wheel means for permitting adjustment of said cam means manually, said wheel means including a plurality of peripheral gear-like teeth, and digital indicator means having spur gear means engaging said teeth so as to be turned when said wheel means is turned, said indicator means indicating digitally the extent to which said wheel means has been turned, said cam means having a surface defining the limits between which said holder means can be moved by said cam means and between which said filter means can be moved into and out of the beam, said filter means including one homogeneously dense filter of a given color movable into positions in which said filter is held partly in the path of the beam so as partly to intercept the beam and partly color the beam the given color, said filter being moved between the limits by said holder means, said filter alone defining the color density of the given color imparted to the beam and defining the maximum and minimum densities for the given color when positioned at the limits, said filter being continuously adjustable throughout the whole density range of the given color.

Claim 7

An apparatus,as in claim 4, wherein said digital indicator means includes a three-decimal indicator coupled to said spur gear means for indicating the degree to which said wheel means has been turned by more than two decimal places.

Claim 8

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, and chamber means in the path of the beam for mixing the colored and white portions of the beam, said filter means including a plurality of separately adjustable filters,said holder means including a plurality of separate holders mounting said filters and movable so as to move the filters partly in the path of the beam, said cam means including a plurality of adjustable cams each engageable with one of said holder means and moving said holder means when engaged therewith so as to move said filter means to varying positions partly intercepting the beam, said spring means including a plurality of springs each connected to one of said holders for urging said holders into engagement with said cam.

Claim 9

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, and chamber means in the path of the beam for mixing the colored and white portions of the beam, said filter means including a plurality of separately adjustable filters,said holder means including a plurality of separate holders mounting said filters and movable so as to move the filters partly in the path of the beam, said cam means including a plurality of adjustable cams each engageable with one of said holder means and moving said holder means when engaged therewith so as to move said filter means to varying positions partly intercepting the beam, said spring means including a plurality of springs each connected to one of said holders for urging said holders into engagement with said cam.

Claim 10

An apparatus,as in claim 6, wherein said cam means further includes a plurality of manually adjustable wheels each coupled to one of said cams so as to adjust positions of said cams on the basis of the manually adjusted position of said wheels.

Claim 11

An apparatus, as in claim 7, further comprising a plurality of digital indicators each coupled to one of said wheels.

Claim 12

An apparatus, as in claim 7, wherein each of said wheels has a pluralIty of gear-like teeth at the periphery thereof, said digital indicators each having a spur gear engaging the teeth of one of said wheels so as to be turned by one of said wheels.

Claim 13

An apparatus, as in claim 9, wherein each of said digital indicators includes three-decimal position rings each coupled to each other and the corresponding spur gear.

Claim 14

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, said holder means has a control surface, and rod means engageable with said surface for moving said holder means out of engagement with said cam means until said filter means are out of the path of the beam.

Claim 15

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, said holder means has a control surface, and rod means engageable with said surface for moving said holder means out of engagement with said cam means until said filter means are out of the path of the beam.

Claim 16

An apparatus, as in claim 6, wherein said holders each have a control surface, rod means movable from a position out of engagement with said control surfaces into engagement with said control surfaces and to a second position for moving said holders out of engagement with said cams against the force of said spring means until said filters are out of the path of the beam.

Claim 17

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, second holder means having a light attenuator mounted thereon, said second holder means being movable into the path of the beam, and spring means for biasing said holder means out of the path of the beam.

Claim 18

A color control apparatus, comprising light source means forming a beam, color filter means, holder means supporting said filter means and being movable into positions in which said filter means are held partly in the path of the beam so as partly to intercept the beam and partly color the beam, adjustable cam means, said holder means being engageable with said cam means, said cam means moving said holder means when engaged therewith so as to vary the degree of intercept of said filter means with the beam and thereby the degree of coloration added to the beam, spring means for urging said holder means into engagement with said cam means, chamber means in the path of the beam for mixing the colored and white portions of the beam, second holder means having a light attenuator mounted thereon, said second holder means being movable into the path of the beam, and spring means for biasing said holder means out of the path of the beam.

Claim 19

An apparatus, as in claim 13, wherein said filter means includes a plurality of separately adjustable filters, said holder means including a plurality of separate holders mounting said filters and movable so as to move the filters partly in the path of the beam, said cam means including a plurality of adjustable cams engageable with one of said holder means and moving said holder means when engaged therewith so as to move said filter means to varying positions partly intercepting the beam, said spring means including a plurality of springs each connected to one of said holders for urging said holders into engagement with said cam.

Claim 20

An apparatus, as in claim 14, wherein said second holder means includes a camming surface, and further comprising rod means engageable with said camming surface for moving said second holder means to said attenuator moves into the path of the beam.

Claim 21

An apparatus, as in claim 13, wherein said filter means includes a plurality of separately adjustable filters, said holder means including a plurality of separate holders mounting said filters and movable so as to move the filters partly in the path of the beam, said cam means including a plurality of adjustable cams each engageable with one of said holder means and moving said holder means when engaged therewith so as to move said filter means to varying positions partly intercepting the beam, said spRing means including a plurality of springs each connected to one of said holders for urging said holders into engagement with said cam.

Claim 22

An apparatus, as in claim 16, wherein said holder means includes a control surface, arm means engageable with said surface for moving said holder means out of engagement with said cam means until said filter means are out of the path of said beam.

Claim 23

An apparatus, as in claim 15, wherein said holders each have a control surface, arm means movable from a position out of engagement with said control surfaces into engagement with said control surfaces and beyond to a second position for moving said holders out of engagement with said cam against the force of said springs until said fingers are out of the path of the beam.

Claim 24

An apparatus, as in claim 17, further comprising bar means connected to said rod means and said arm means and manually movable into three positions, said rod means and said arm means each being out of engagement with said control surfaces and said camming means in one position, said bar means moving said rod means into the position in which said second holder means is interposed in the path of the beam when said bar means is in the second position, said bar means moving said arm means into the positions wherein said holder means are disengaged from said cam means so said filter means are out of the path of the beam when said bar means is in the third position, said holder means being formed so said rod means and said arm means are disengaged from said holder means when said bar means is in two out of three of its positions.

Claim 25

An apparatus, as in claim 18, further comprising bar means connected to said rod means and said arm means, said rod means being manually movable into three conditions, said rod means and said arm means each being out of engagement with said control surfaces and said camming surface in one condition of said bar means, said bar means moving said rod means into the position in which said second holder means interposes said attenuator into the path of the beam when said bar means is in the second position, said bar means moving said arm means into the position wherein said holders are disengaged from said cams so said filters are out the path of the beam when said bar means is in the third condition, said holders being shaped so as to be out of engagement with said arm means when said bar means is in the first condition and in the second condition, said holder means being shaped so as to be out of engagement with said rod means when said bar means is in the second condition and the third condition.

Claim 26

An apparatus, as in claim 20, wherein said cam means further includes a plurality of manually adjustable wheels each coupled to one of said cams so as to adjust the positions of said cams on the basis of the manually adjusted position of said wheels.

Claim 27

An apparatus, as in claim 20, wherein each of said wheels has a plurality of gear-like teeth at the periphery thereof, said digital indicators each having a spur gear engaging the teeth of one of said wheels so as to be turned by one of said wheels.

Claim 28

An apparatus, as in claim 22, wherein each of said digital indicators includes three-decimal position rings each coupled to each other and the corresponding spur gear.

Claim 29

An apparatus as in claim 6, wherein said cam means includes mounting means for mounting said cams coaxially, a shaft coaxially connected to one of said cams, a sleeve coaxially surrounding said shaft and coupled to a second of said cams, a first wheel secured to said shaft, and a second wheel coaxial with said first wheel secured to said sleeve, said wheel adjusting the positions of said cams through said shaft and said sleeve.

Claim 30

An apparatus as in claim 24, wherein each of said wheels has a plurality of gear-like teeth at the periphery thereof, and a plurality of digital indicators each coupled to one of said wheels, said digital indicators each having a spur gear engaging the teeth of one of said wheeLs so as to be turned by one of said wheels.

Claim 31

An apparatus as in claim 1, wherein said source means focuses the beam between said source means and said chamber means, said filter means being located between said source means and said chamber means.

Claim 32

An apparatus as in claim 4, wherein said source means focuses the beam between said source means and said chamber means, said filter means being located between said source means and said chamber means.