JPS57207235A - Renticular lens for screen - Google Patents

Renticular lens for screen

Info

Publication number
JPS57207235A
JPS57207235A JP56091896A JP9189681A JPS57207235A JP S57207235 A JPS57207235 A JP S57207235A JP 56091896 A JP56091896 A JP 56091896A JP 9189681 A JP9189681 A JP 9189681A JP S57207235 A JPS57207235 A JP S57207235A
Authority
JP
Japan
Prior art keywords
crests
total reflection
parts
slopes
recessed
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.)
Granted
Application number
JP56091896A
Other languages
Japanese (ja)
Other versions
JPS6128978B2 (en
Inventor
Yukio Yada
Koichi Inagaki
Yoshio Yatabe
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP56091896A priority Critical patent/JPS57207235A/en
Priority to US06/386,255 priority patent/US4469402A/en
Priority to EP82105129A priority patent/EP0067430B1/en
Priority to DE8484113833T priority patent/DE3280238D1/en
Priority to DE8282105129T priority patent/DE3268257D1/en
Priority to EP84113833A priority patent/EP0163766B1/en
Priority to KR8202635A priority patent/KR900001520B1/en
Publication of JPS57207235A publication Critical patent/JPS57207235A/en
Publication of JPS6128978B2 publication Critical patent/JPS6128978B2/ja
Granted 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
    • G03B21/602—Lenticular screens

Abstract

PURPOSE:To increase visual field angles and to facilitate manufacture by forming total reflection parts on the slopes between the crests and troughs of a medium, and forming recessed surfaces on the peaks of the crests. CONSTITUTION:Total reflection surfaces are formed on the slopes 3 between crests 1 and troughs 2 in such a way that the rays incident to these parts transmit through the crests 1 after total reflection. Recessed surfaces like concave lenses are formed on the peaks 1a of the crests. Therefore, the light incident to the parts B corresponding to the crests 1 advances rectiliner in the medium, and diffuses by refracting on the lens-like recessed parts of the peak surfaces 1a. At this time, the light incident to the slopes 3, that is partial light of A or A' is refracted by total reflection and emits from the peak surfaces 1a of the crests 1.
JP56091896A 1981-06-15 1981-06-15 Renticular lens for screen Granted JPS57207235A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP56091896A JPS57207235A (en) 1981-06-15 1981-06-15 Renticular lens for screen
US06/386,255 US4469402A (en) 1981-06-15 1982-06-08 Rear projection screen
EP82105129A EP0067430B1 (en) 1981-06-15 1982-06-11 Rear projection screen
DE8484113833T DE3280238D1 (en) 1981-06-15 1982-06-11 TRANSPARENCY PROJECTION SCREEN.
DE8282105129T DE3268257D1 (en) 1981-06-15 1982-06-11 Rear projection screen
EP84113833A EP0163766B1 (en) 1981-06-15 1982-06-11 Rear projection screen
KR8202635A KR900001520B1 (en) 1981-06-15 1982-06-14 Rear projection screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56091896A JPS57207235A (en) 1981-06-15 1981-06-15 Renticular lens for screen

Publications (2)

Publication Number Publication Date
JPS57207235A true JPS57207235A (en) 1982-12-18
JPS6128978B2 JPS6128978B2 (en) 1986-07-03

Family

ID=14039324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56091896A Granted JPS57207235A (en) 1981-06-15 1981-06-15 Renticular lens for screen

Country Status (1)

Country Link
JP (1) JPS57207235A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075826A (en) * 1983-06-13 1985-04-30 Mitsubishi Rayon Co Ltd Back projecting screen
US4936652A (en) * 1988-09-28 1990-06-26 Dai Nippon Printing Co., Ltd. Rear projection screen
US5481385A (en) * 1993-07-01 1996-01-02 Alliedsignal Inc. Direct view display device with array of tapered waveguide on viewer side
US5657408A (en) * 1994-12-23 1997-08-12 Alliedsignal Inc. Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein
JP2006330723A (en) * 2005-05-20 2006-12-07 Samsung Electronics Co Ltd Optical plate, backlight assembly having this, and display device
WO2012043326A1 (en) * 2010-09-28 2012-04-05 住友化学株式会社 Optical member subjected to non-glare treatment
CN103827572A (en) * 2011-09-15 2014-05-28 三菱电机株式会社 Light intensity distribution conversion element, planar light source device, and liquid crystal display device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075826A (en) * 1983-06-13 1985-04-30 Mitsubishi Rayon Co Ltd Back projecting screen
US4936652A (en) * 1988-09-28 1990-06-26 Dai Nippon Printing Co., Ltd. Rear projection screen
US5481385A (en) * 1993-07-01 1996-01-02 Alliedsignal Inc. Direct view display device with array of tapered waveguide on viewer side
US5657408A (en) * 1994-12-23 1997-08-12 Alliedsignal Inc. Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein
JP2006330723A (en) * 2005-05-20 2006-12-07 Samsung Electronics Co Ltd Optical plate, backlight assembly having this, and display device
WO2012043326A1 (en) * 2010-09-28 2012-04-05 住友化学株式会社 Optical member subjected to non-glare treatment
CN103827572A (en) * 2011-09-15 2014-05-28 三菱电机株式会社 Light intensity distribution conversion element, planar light source device, and liquid crystal display device

Also Published As

Publication number Publication date
JPS6128978B2 (en) 1986-07-03

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