GB516717A - - Google Patents

Info

Publication number
GB516717A
GB516717A GB10274/38D GB1027438D GB516717A GB 516717 A GB516717 A GB 516717A GB 10274/38 D GB10274/38 D GB 10274/38D GB 1027438 D GB1027438 D GB 1027438D GB 516717 A GB516717 A GB 516717A
Authority
GB
United Kingdom
Prior art keywords
frame
opaque housing
lamp
crosssection
reflector
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
GB10274/38D
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.)
Ii!r System Inc
Original Assignee
Ii!r System Inc
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 Ii!r System Inc filed Critical Ii!r System Inc
Publication of GB516717A publication Critical patent/GB516717A/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
    • G03B15/02—Illuminating scene
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

516,717. Lamp fittings. I - R SYSTEMS, Inc. April 4, 1938, No. 10274. Convention date, June 19, 1937. [Class 75 (ii)] [Also in Group XX] An elongated lamp for the lighting of moving picture studios comprises a frame 111, shown in crosssection, with an opaque housing 117 mounted in bearings for rotation, and carrying a reflector 116. The opaque housing 117 carries a semi-cylindrical lens 118. The light. opening of the frame 111 is regulated by adjustable shutters 119.
GB10274/38D 1937-06-19 1938-04-04 Expired GB516717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US516717XA 1937-06-19 1937-06-19

Publications (1)

Publication Number Publication Date
GB516717A true GB516717A (en) 1940-01-10

Family

ID=21972696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10274/38D Expired GB516717A (en) 1937-06-19 1938-04-04

Country Status (1)

Country Link
GB (1) GB516717A (en)

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