Tv film reproduction system compatible with diffraction process color projection systems

Claim 2

For use in an opTical projection system for retrieving information from a record containing an image-wise signal modulating a spatial carrier, the combination comprising: record support means; light source means comprising at least one effectively far-field source of light which is spatially coherent at the record at the frequency of said carrier; lens means for resolving in a Fourier transform space a diffraction pattern of a record in said record support means, said pattern representing an image of said light source; spatial filter means located in said transform space for selectively passing through said transform space at least a portion of a diffracted order associated with said diffraction pattern; and manipulating means for moving said spatial filter means between an inoperative position off the system optical axis and an operative position on the optical axis, comprising: arm means carrying said spatial filter means on a free end thereof, mounting means supporting said arm means for rotational movement, means coupled to said arm means for providing rotational movement thereof between a position wherein said spatial filter element is inoperative and a position on said axis wherein said spatial filter means is operative, means for holding said spatial filter means in either of said operative or inoperative positions, and axial adjustment means for varying the axial position of said spatial filter element.

Claim 3

The apparatus defined by claim 1 wherein said axial adjustment means is an axially adjustable screw for varying the axial position of said spatial filter means.

Claim 4

For use in an optical projection system for retrieving information from a record containing an image-wise signal modulating a spatial carrier, the combination comprising: means for establishing a source of luminous energy; mirror means for collecting light from said source and for forming an image thereof contiguous to said source; adjustable mirror mounting means for supporting said mirror means, comprising: a shaft for supporting said mirror means on one end thereof, a ball member having a spherical external surface area, said ball member having an internal passageway for receiving said shaft, fastening means receivable on said shaft for locking said ball at selected positions on said shaft, support means having a cavity with a spherical surface area of the same radius as said ball for seating said ball member, and ball locking means including spring-biased means for frictionally engaging said ball and means operating on said spring-biased means for adjusting the compressive force applied by said spring-biased means to said ball; condensing lens means for collecting light from said source; an array of lenses in the light bundle from said condensing lens means for forming a like array of spaced images of said source; first support means providing rigid axial support for said array of lenses while providing for angular adjustment thereof; mask means located in a plane in which said source images are formed, said mask means having an array of apertures coincident with the locations of said source images to establish a plurality of sources of spatially coherent light; and second support means supported on external surface areas of said first support means and carrying said mask means, said second support means including adjustable means engaging said external surface areas of said first support means for adjusting the position of said second support means relative to said first support means in a plane transverse to said system optical axis; lens means for resolving in a Fourier transform space a number of diffraction patterns of a record in said record support means, said patterns representing images of said light sources; spatial filter means located in said transform space for selectively passing through said transform space at least a portion of a nonzeroth order associated with each of said plurality of light sources; and manipulating means for moving said spatial filter means between an inoperative position off the system optical axis and an operative position on the optical axis, comprising: arm means carrying said spatial filter means on a free end thereof and having a shaft on the opposite end thereof, mounting means supporting said shaft for rotational movement, manually operable means coupled to said shaft for providing for axial and rotational movement of said shaft, spring means for biasing said shaft along said axis in a direction toward an operative rest position on said axis wherein said arm means engages abutting means, detent means for holding said spatial filter means in either of said operative or inoperative positions, and axial adjustment means carried by said mounting means and having a convergent end adapted for engagement with recess means in said arm means when said spatial filter means is appropriately positioned on said system optical axis.

Claim 5

For use in an optical projection system for retrieving information from a record containing an image-wise signal modulating a spatial carrier, the combination comprising: means for establishing a source of luminous energy; mirror means for collecting light from said source and for forming an image thereof contiguous to said source; adjustable mirror mounting means for supporting said mirror means, comprising: a shaft for supporting said mirror means on one end thereof, a ball member having a spherical external surface area, said ball member having an internal passageway for receiving said shaft, fastening means receivable on said shaft for locking said ball at selected positions on said shaft, support means having a cavity with a spherical surface area of the same radius as said ball for seating said ball member, and ball locking means including spring-biased means for frictionally engaging said ball and means operating on said spring-biased means for adjusting the compressive force applied by said spring-biased means to said ball; condensing lens means for collecting light from said source; an array of lenses in the light bundle from said condensing lens means for forming a like array of spaced images of said source; first support means providing rigid axial support for said array of lenses while providing for angular adjustment thereof; mask means located in a plane in which said source images are formed, said mask means having an array of apertures coincident with the locations of said source images to establish a plurality of sources of spatially coherent light; and second support means supported on external surface areas of said first support means and carrying said mask means, said second support means including adjustable means engaging said external surface areas of said first support means for adjusting the position of said second support means relative to said first support means in a plane transverse to said system optical axis; lens means for resolving in a Fourier transform space a number of diffraction patterns of a record in said record support means, said patterns representing images of said light sources; spatial filter means located in said transform space for selectively passing through said transform space at least a portion of a nonzeroth order associated with each of said plurality of light sources; and manipulating means for moving said spatial filter means between an inoperative position off the system optical axis and an operative position on the optical axis, comprising: arm means carrying said spatial filter means on a free end thereof and having a shaft on the opposite end thereof, mounting means supporting said shaft for rotational movement, manually operable means coupled to said shaft for providing for axial and rotational movement of said shaft, spring means for biasing said shaft along said axis in a direction toward an operative rest position on said axis wherein said arm means engages abutting means, detent means for holding said spatial filter means in either of said operative or inoperative positions, and axial adjustment means carried by said mounting means and having a convergent end adapted for engagement with recess means in said arm means when said spatial filter means is appropriately positioned on said system optical axis.

Claim 6

A compatible optical projection system for displaying images recorded either as a conventional color transparency or as a record on which color separation information is stored as a signal modulating a spatial carrier, comprising: a film gate for holding a record; light source means comprising at least one effectively far-field source of light which is spatially coherent at the record at the frequency of said carrier; lens means for resolving in a Fourier transform space a diffraction pattern of a record in said film gate, said pattern representing an image of said light source; spatial filter means for insertion in said transform space for selectively passing through said transform space at least a portion of a diffracted order associated with said diffraction pattern; projection lens means located behind said spatial filter means for collecting the light transmitted through said spatial filter means and for forming an image of said record at an output plane; diffuser means for insertion in said system between said light source means and said film gate; and means for supporting said diffuser means and said spatial filter means such that when either is positioned in said system the other is excluded from the system, whereby said diffuser means may be inserted in said system and said spatial filter means removed therefrom when it is desired to project a conventional color transparency, and whereby said spatial filter means may be inserted in said system and said diffuser means removed therefrom when it is desired to project a record on which color information modulates a spatial carrier, said means supporting said spatial filter means comprising: arm means carrying the spatial filter means to be m manipulated on a free end thereof, mounting means supporting said arm means for rotational movement, means coupled to said arm means for providing for rotational movement thereof between a position wherein said spatial filter means is inoperative and a position on said axis wherein said optical element is operative, means for holding said spatial filter means in either of said operative or inoperative positions, and axial adjustment means for varying the axial position of said spatial filter means.

Claim 7

A compatible optical projection system for displaying images recorded either as a conventional color transparency or as a record on which color separation information is stored as a signal modulating a spatial carrier, comprising: a film gate for holding a record; light source means comprising at least one effectively far-field source of light which is spatially coherent at the record at the frequency of said carrier; lens means for resolving in a Fourier transform space a diffraction pattern of a record in said film gate, said pattern representing an image of said light source; spatial filter means for insertion in said transform space for selectively passing through said transform space at least a portion of a diffracted order associated with said diffraction pattern; projection lens means located behind said spatial filter means for collecting the light transmitted through said spatial filter means and for forming an image of said record at an output plane; diffuser means for insertion in said system between said light source means and said film gate; and means for supporting said diffuser means and said spatial filter means such that when either is positioned in said system the other is excluded from the system, whereby said diffuser means may be inserted in said system and said spatial filter means removed therefrom when it is desired to project a conventional color transparency, and whereby said spatial filter means may be inserted in said system and said diffuser means removed therefrom when it is desired to project a record on which color information modulates a spatial carrier, said means supporting said spatial filter means comprising: arm means carrying the spatial filter means to be m manipulated on a free end thereof, mounting means supporting said arm means for rotational movement, means coupled to said arm means for providing for rotational movement thereof between a position wherein said spatial filter means is inoperative and a position on said axis wherein said optical element is operative, means for holding said spatial filter means in either of said operative or inoperative positions, and axial adjustment means for varying the axial position of said spatial filter means.

Claim 8

For use in an optical system for retrieving information from a record containing an image-wise modulating a spatial carrier, the combination comprising: a film gate for holding a record; light source means comprising at least one effectively far-field source of light which is spatially coherent at the record at the frequency of said carrier; lens means for forming in a Fourier transform space a diffraction pattern of a record in said film gate, said pattern representing an image of said light source; means including lens means for forming a conjugate image of said diffraction pattern; spatial filter means at the location of said conjugate image and having a predetermIned geometrical light attenuation characteristic; means supporting said spatial filter means for axial, transverse, and rotational movement, comprising: first linear translation means for moving a first support means in a first direction, second linear translation means carried by said first support means for moving a second support means in a second direction orthogonal to said first direction, and azimuth adjustment means carried by said second support means for supporting said spatial filter means for rotational movement; and lens means for retransforming the spectra transmitted by said spatial filter means to form an image of said record having a predetermined spatial frequency content dependent upon said geometrical light attenuation characteristic of said spatial filter means.

Claim 9

For use in an optical system for retrieving information from a record containing an image-wise modulating a spatial carrier, the combination comprising: a film gate for holding a record; light source means comprising at least one effectively far-field source of light which is spatially coherent at the record at the frequency of said carrier; lens means for forming in a Fourier transform space a diffraction pattern of a record in said film gate, said pattern representing an image of said light source; means including lens means for forming a conjugate image of said diffraction pattern; spatial filter means at the location of said conjugate image and having a predetermIned geometrical light attenuation characteristic; means supporting said spatial filter means for axial, transverse, and rotational movement, comprising: first linear translation means for moving a first support means in a first direction, second linear translation means carried by said first support means for moving a second support means in a second direction orthogonal to said first direction, and azimuth adjustment means carried by said second support means for supporting said spatial filter means for rotational movement; and lens means for retransforming the spectra transmitted by said spatial filter means to form an image of said record having a predetermined spatial frequency content dependent upon said geometrical light attenuation characteristic of said spatial filter means.