GB755189A - Reflector - Google Patents

Reflector

Info

Publication number
GB755189A
GB755189A GB28948/54A GB2894854A GB755189A GB 755189 A GB755189 A GB 755189A GB 28948/54 A GB28948/54 A GB 28948/54A GB 2894854 A GB2894854 A GB 2894854A GB 755189 A GB755189 A GB 755189A
Authority
GB
United Kingdom
Prior art keywords
layer
oct
metal support
coated
black layer
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
GB28948/54A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB755189A publication Critical patent/GB755189A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
    • G02B5/085—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal
    • G02B5/0858—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal the reflecting layers comprising a single metallic layer with one or more dielectric layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/281—Interference filters designed for the infrared light
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Optical Measuring Cells (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

755,189. Reflectors; filters. GRETENER, E. Oct. 7, 1954 [Oct. 8, 1953], No. 28948/54. Drawings to Specification. Class 97 α1<SP>1</SP>. A reflector comprises a concave metal support coated with a layer of heat-absorbing material and on top an interference filter which reflects visible light but transmits heat radiations. The absorbing layer absorbs substantially all radiation in the infra-red range and is generally a black layer. If this black layer has a coarse surface it may be first coated with a lacquer to provide a smooth base for the interference layers. The metal support may be cooled by air or by passing a cooling liquid through a tube round its rim.
GB28948/54A 1953-10-08 1954-10-07 Reflector Expired GB755189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH755189X 1953-10-08

Publications (1)

Publication Number Publication Date
GB755189A true GB755189A (en) 1956-08-15

Family

ID=4534213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28948/54A Expired GB755189A (en) 1953-10-08 1954-10-07 Reflector

Country Status (1)

Country Link
GB (1) GB755189A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591248A (en) * 1965-03-23 1971-07-06 Glaverbel Uniform light transmitting, infrared absorbing and reflecting materials and articles
GB2360569A (en) * 1979-03-26 2001-09-26 Secr Defence Camouflage material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591248A (en) * 1965-03-23 1971-07-06 Glaverbel Uniform light transmitting, infrared absorbing and reflecting materials and articles
GB2360569A (en) * 1979-03-26 2001-09-26 Secr Defence Camouflage material
GB2360569B (en) * 1979-03-26 2002-02-06 Secr Defence Camouflage

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