GB1129925A - Improvements in or relating to rear projection screens - Google Patents

Improvements in or relating to rear projection screens

Info

Publication number
GB1129925A
GB1129925A GB1439666A GB1439666A GB1129925A GB 1129925 A GB1129925 A GB 1129925A GB 1439666 A GB1439666 A GB 1439666A GB 1439666 A GB1439666 A GB 1439666A GB 1129925 A GB1129925 A GB 1129925A
Authority
GB
United Kingdom
Prior art keywords
rear projection
projection screens
relating
march
lacquer
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
GB1439666A
Inventor
Thomas Smith Harkness
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.)
Andrew Smith Harkness Ltd
Original Assignee
Andrew Smith Harkness 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 Andrew Smith Harkness Ltd filed Critical Andrew Smith Harkness Ltd
Priority to GB1439666A priority Critical patent/GB1129925A/en
Priority to FR100207A priority patent/FR1515592A/en
Publication of GB1129925A publication Critical patent/GB1129925A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

1,129,925. Projection screens. ANDREW SMITH HARKNESS Ltd. March 30, 1967 [March 31, 1966], No. 14396/66. Heading G2J. [Also in Division B2] A rear projection screen for receiving 3-D image pairs in polarized light consists of a transparent glass or plastics sheet coated with a suspension of silica aerogel particles in clear lacquer. The particles have a diameter of between 25 and 35 ŠU, and a separation of 300 ŠU and the lacquer may be cellulose or P.V.C.
GB1439666A 1966-03-31 1966-03-31 Improvements in or relating to rear projection screens Expired GB1129925A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1439666A GB1129925A (en) 1966-03-31 1966-03-31 Improvements in or relating to rear projection screens
FR100207A FR1515592A (en) 1966-03-31 1967-03-24 Advanced projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1439666A GB1129925A (en) 1966-03-31 1966-03-31 Improvements in or relating to rear projection screens

Publications (1)

Publication Number Publication Date
GB1129925A true GB1129925A (en) 1968-10-09

Family

ID=10040439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1439666A Expired GB1129925A (en) 1966-03-31 1966-03-31 Improvements in or relating to rear projection screens

Country Status (2)

Country Link
FR (1) FR1515592A (en)
GB (1) GB1129925A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162408A1 (en) * 1984-05-19 1985-11-27 Jürgen Daszinnies Projection screen for two - or threedimensional projections
JP2013182141A (en) * 2012-03-02 2013-09-12 Mitsubishi Paper Mills Ltd See-through transmitting type screen
JP2013195548A (en) * 2012-03-16 2013-09-30 Mitsubishi Paper Mills Ltd Transmission screen
JP2013210454A (en) * 2012-03-30 2013-10-10 Mitsubishi Paper Mills Ltd Transmission type screen
JP2015004746A (en) * 2013-06-19 2015-01-08 三菱製紙株式会社 Transmission type screen laminate
US20150153639A1 (en) * 2012-03-02 2015-06-04 Mitsubishi Paper Mills Limited Transmission type screen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162408A1 (en) * 1984-05-19 1985-11-27 Jürgen Daszinnies Projection screen for two - or threedimensional projections
JP2013182141A (en) * 2012-03-02 2013-09-12 Mitsubishi Paper Mills Ltd See-through transmitting type screen
US20150153639A1 (en) * 2012-03-02 2015-06-04 Mitsubishi Paper Mills Limited Transmission type screen
US9360747B2 (en) * 2012-03-02 2016-06-07 Mitsubishi Paper Mills Limited Transmission type screen
JP2013195548A (en) * 2012-03-16 2013-09-30 Mitsubishi Paper Mills Ltd Transmission screen
JP2013210454A (en) * 2012-03-30 2013-10-10 Mitsubishi Paper Mills Ltd Transmission type screen
JP2015004746A (en) * 2013-06-19 2015-01-08 三菱製紙株式会社 Transmission type screen laminate

Also Published As

Publication number Publication date
FR1515592A (en) 1968-03-01

Similar Documents

Publication Publication Date Title
AU460965B2 (en) Suspended solids concentration determination using polarized light
CA952357A (en) Optical spatial filtering with multiple light sources
GB1432243A (en) Rear projection screens and methods of making them
CA951206A (en) Scleral lens with attached tube
GB1129925A (en) Improvements in or relating to rear projection screens
ES459022A1 (en) Glide path lighting system
GB1245929A (en) Improvements in or relating to synthetic plastic lenses
CA763291A (en) Reflectorized finish utilizing glass beads
CA924172A (en) Image reproduction process using colored particles
CA746256A (en) Rear projection screen
CA753581A (en) Microscopic glass beads having free-flow characteristics
CA768937A (en) Tandem suspension
GB920979A (en) Improvements in lamps for vehicles
CA768036A (en) Light duty tandem axle suspension
AU415035B2 (en) Scleral lens with attached tube
CA732074A (en) Tandem axle spring suspension
CA757517A (en) Tandem axle spring suspension
CA756949A (en) Tandem axle spring suspension
CA771916A (en) Copying apparatus with lenticular optical system
AU93366A (en) Tandem suspension forland vehicles
AU2344170A (en) Screen projector having an improved illumination system
CA742067A (en) Film roll suspension
CA726058A (en) Axle suspension mechanism
CA756468A (en) Tandem suspension construction
AU2104270A (en) Scleral lens with attached tube