GB1201607A - ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS - Google Patents

ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS

Info

Publication number
GB1201607A
GB1201607A GB4477966A GB4477966A GB1201607A GB 1201607 A GB1201607 A GB 1201607A GB 4477966 A GB4477966 A GB 4477966A GB 4477966 A GB4477966 A GB 4477966A GB 1201607 A GB1201607 A GB 1201607A
Authority
GB
United Kingdom
Prior art keywords
sachet
plate
projectors
infra
absorption
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
GB4477966A
Inventor
Bernard Laurence Melto Chapman
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.)
TEACHING PROGRAMMES Ltd
Original Assignee
TEACHING PROGRAMMES Ltd
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 TEACHING PROGRAMMES Ltd filed Critical TEACHING PROGRAMMES Ltd
Priority to GB4477966A priority Critical patent/GB1201607A/en
Publication of GB1201607A publication Critical patent/GB1201607A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/26—Cooling
    • 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,201,607. Infrared filters; optical projectors. TEACHING PROGRAMMES Ltd. Nov.17, 1967 [Oct.6, 1966], No.44779/66. Headings G2A; G2J. A sachet 30 of water, or an aqueous solution, is used for absorbing infrared radiation in a slide projector. As shown, the light from lamp 10 passes through an aperture 16 in a plate 17 then through the lower end 31 of the sachet 30 which is inclined at about 8 degrees to the horizontal, before passing through condenser 11 mounted in an aperture in a plate 15. The parallel plates 15, 17, are secured to a plate 20 having a plurality of cooling pins 21 thereon to act as a heat sink, the upper end 33 of the sachet 30 being clamped between flanges 23, 24, on the plates 17, 20, respectively.
GB4477966A 1966-10-06 1966-10-06 ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS Expired GB1201607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4477966A GB1201607A (en) 1966-10-06 1966-10-06 ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4477966A GB1201607A (en) 1966-10-06 1966-10-06 ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS

Publications (1)

Publication Number Publication Date
GB1201607A true GB1201607A (en) 1970-08-12

Family

ID=10434705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4477966A Expired GB1201607A (en) 1966-10-06 1966-10-06 ABSORPTION OF INFRA-RED RADIATION e.g. IN PROJECTORS

Country Status (1)

Country Link
GB (1) GB1201607A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5348759A (en) * 1976-10-16 1978-05-02 Shinichi Matsuda Infrared ray absorbing material
US4939374A (en) * 1987-10-16 1990-07-03 Maxs Ag Irradiation device
US5132519A (en) * 1989-09-29 1992-07-21 Techni Dry Limited Electric heater
WO2010031526A1 (en) * 2008-09-19 2010-03-25 Carl Zeiss Smt Ag Optical assembly with a temperature -control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5348759A (en) * 1976-10-16 1978-05-02 Shinichi Matsuda Infrared ray absorbing material
US4939374A (en) * 1987-10-16 1990-07-03 Maxs Ag Irradiation device
US5132519A (en) * 1989-09-29 1992-07-21 Techni Dry Limited Electric heater
WO2010031526A1 (en) * 2008-09-19 2010-03-25 Carl Zeiss Smt Ag Optical assembly with a temperature -control device
US8339569B2 (en) 2008-09-19 2012-12-25 Carl Zeiss Smt Gmbh Temperature-control device for an optical assembly
CN102159979B (en) * 2008-09-19 2013-01-02 卡尔蔡司Smt有限责任公司 Optical assembly with temperature-control device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees