GB515668A - Light-dividing optical system for colour photography - Google Patents

Light-dividing optical system for colour photography

Info

Publication number
GB515668A
GB515668A GB6279/38A GB627938A GB515668A GB 515668 A GB515668 A GB 515668A GB 6279/38 A GB6279/38 A GB 6279/38A GB 627938 A GB627938 A GB 627938A GB 515668 A GB515668 A GB 515668A
Authority
GB
United Kingdom
Prior art keywords
prisms
parts
silvered
light
strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6279/38A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROBERT ERICH ASCHE
Original Assignee
ROBERT ERICH ASCHE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ROBERT ERICH ASCHE filed Critical ROBERT ERICH ASCHE
Publication of GB515668A publication Critical patent/GB515668A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

515,668. Optical systems. ASCHE, R. E. Feb. 28, 1938, No. 6279. Void. Convention date, March 4, 1937. [Class 97 (i)] In a beam - splitting system for colour photography light-transmitting reflecting surfaces are arranged to intersect. As shown, the system comprises prisms 1, 2, 3 dividing the beam from a lens, parts a being reflected by silvered strips 4, 5, parts b by a silvered surface 6, and parts c being transmitted. The prisms are placed close to the lens, and immediately adjacent to rectangular blocks 8, 9 and totally-reflecting prisms 10, 11, to produce images in one plane; colour filters may be arranged between the parts of the svstem. The prisms 10, 11 are separated by an air gap 12 which may be used, in conjunction with variations in the angles of the-prisms and glass plates stuck to the prisms, to equalize the lengths of the light paths. The strips 5, 6 on the prism 1 may be replaced by a semi-transparent surface, and the outer surface of the prisms 1, 2 may be silvered or unsilvered.
GB6279/38A 1937-03-04 1938-02-28 Light-dividing optical system for colour photography Expired GB515668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE515668X 1937-03-04

Publications (1)

Publication Number Publication Date
GB515668A true GB515668A (en) 1939-12-11

Family

ID=6549043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6279/38A Expired GB515668A (en) 1937-03-04 1938-02-28 Light-dividing optical system for colour photography

Country Status (1)

Country Link
GB (1) GB515668A (en)

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