GB774323A - Improvements in optical image director - Google Patents

Improvements in optical image director

Info

Publication number
GB774323A
GB774323A GB4012/55A GB401255A GB774323A GB 774323 A GB774323 A GB 774323A GB 4012/55 A GB4012/55 A GB 4012/55A GB 401255 A GB401255 A GB 401255A GB 774323 A GB774323 A GB 774323A
Authority
GB
United Kingdom
Prior art keywords
mirrors
planar areas
areas
feb
characters
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
GB4012/55A
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.)
Applied Biosystems Inc
Original Assignee
Perkin Elmer Corp
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 Perkin Elmer Corp filed Critical Perkin Elmer Corp
Publication of GB774323A publication Critical patent/GB774323A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
    • B41B21/08—Light sources; Devices associated therewith, e.g. control devices
    • B41B21/14—Combinations of light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

774,323. Optical apparatus; photographic type-composing. PERKIN-ELMER CORPORATION. Feb. 10, 1955 [Feb. 11, 1954], No. 4012/55. Classes 97(1) and 98(1) In an apparatus for enabling a light signal to be received at a fixed position from any one of an array of like co-planar areas, a combination of plane reflecting surfaces and a projection lens transmit the light from the areas, the number of reflections depending on the distance of the lightemitting coplanar area from the central area. Preferably, a plurality of mirrors 21 are disposed about the optical axis of projection lens 20 so that the number of reflections of the rays B<SP>1</SP>, B<SP>2</SP>, from adjacent co-planar areas, differ by unity. The figure of the cross-section of the prism formed by mirrors 21 is similar to that of the co-planar areas. As shown, in photographic type-composing apparatus images of the characters in co-planar areas on the font plate 12 are projected by lens. 20 on to a fixed position at light sensitive element 10. The number of different orientations of the characters is twice the number of non-parallel sides of the prism formed by mirrors 21.
GB4012/55A 1954-02-11 1955-02-10 Improvements in optical image director Expired GB774323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US774323XA 1954-02-11 1954-02-11

Publications (1)

Publication Number Publication Date
GB774323A true GB774323A (en) 1957-05-08

Family

ID=22138007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4012/55A Expired GB774323A (en) 1954-02-11 1955-02-10 Improvements in optical image director

Country Status (1)

Country Link
GB (1) GB774323A (en)

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