JPS56142501A - Fresnel lens sheet - Google Patents

Fresnel lens sheet

Info

Publication number
JPS56142501A
JPS56142501A JP4639780A JP4639780A JPS56142501A JP S56142501 A JPS56142501 A JP S56142501A JP 4639780 A JP4639780 A JP 4639780A JP 4639780 A JP4639780 A JP 4639780A JP S56142501 A JPS56142501 A JP S56142501A
Authority
JP
Japan
Prior art keywords
fresnel lens
constitution
lens sheet
faces
polyhedral
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
JP4639780A
Other languages
English (en)
Other versions
JPS626201B2 (ja
Inventor
Yoshiharu Yamamoto
Yoshitomi Nagaoka
Yasuo Nakajima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4639780A priority Critical patent/JPS56142501A/ja
Publication of JPS56142501A publication Critical patent/JPS56142501A/ja
Publication of JPS626201B2 publication Critical patent/JPS626201B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
JP4639780A 1980-04-08 1980-04-08 Fresnel lens sheet Granted JPS56142501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4639780A JPS56142501A (en) 1980-04-08 1980-04-08 Fresnel lens sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4639780A JPS56142501A (en) 1980-04-08 1980-04-08 Fresnel lens sheet

Publications (2)

Publication Number Publication Date
JPS56142501A true JPS56142501A (en) 1981-11-06
JPS626201B2 JPS626201B2 (ja) 1987-02-09

Family

ID=12746008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4639780A Granted JPS56142501A (en) 1980-04-08 1980-04-08 Fresnel lens sheet

Country Status (1)

Country Link
JP (1) JPS56142501A (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124837U (ja) * 1981-01-28 1982-08-04
JPS597928A (ja) * 1982-07-06 1984-01-17 Alps Electric Co Ltd 透過形液晶表示装置
JPS61130903A (ja) * 1984-11-30 1986-06-18 Hitachi Ltd フレネルレンズとその製造方法
JPS61256337A (ja) * 1985-05-10 1986-11-13 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPH085804A (ja) * 1995-01-12 1996-01-12 Hitachi Ltd フレネルレンズの製造方法および該製造方法によって得られたフレネルレンズを用いた投射型テレビ
EP1089094A1 (fr) * 1999-09-30 2001-04-04 Valeo Vision Procédé de fabrication d'éléments dioptriques et éléments dioptriques pour dispositif d'éclairage.
JP2012002990A (ja) * 2010-06-16 2012-01-05 Enplas Corp 光束制御部材およびこれを備えた光学装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200646A (en) * 1938-02-28 1940-05-14 John D Strong Transparent projection screen
JPS50125755A (ja) * 1974-03-19 1975-10-03
JPS5117452A (ja) * 1974-08-02 1976-02-12 Ichiro Hosaka Furenerurenzu

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200646A (en) * 1938-02-28 1940-05-14 John D Strong Transparent projection screen
JPS50125755A (ja) * 1974-03-19 1975-10-03
JPS5117452A (ja) * 1974-08-02 1976-02-12 Ichiro Hosaka Furenerurenzu

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124837U (ja) * 1981-01-28 1982-08-04
JPS597928A (ja) * 1982-07-06 1984-01-17 Alps Electric Co Ltd 透過形液晶表示装置
JPS61130903A (ja) * 1984-11-30 1986-06-18 Hitachi Ltd フレネルレンズとその製造方法
JPH0525081B2 (ja) * 1984-11-30 1993-04-09 Hitachi Ltd
JPS61256337A (ja) * 1985-05-10 1986-11-13 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPH085804A (ja) * 1995-01-12 1996-01-12 Hitachi Ltd フレネルレンズの製造方法および該製造方法によって得られたフレネルレンズを用いた投射型テレビ
EP1089094A1 (fr) * 1999-09-30 2001-04-04 Valeo Vision Procédé de fabrication d'éléments dioptriques et éléments dioptriques pour dispositif d'éclairage.
JP2012002990A (ja) * 2010-06-16 2012-01-05 Enplas Corp 光束制御部材およびこれを備えた光学装置

Also Published As

Publication number Publication date
JPS626201B2 (ja) 1987-02-09

Similar Documents

Publication Publication Date Title
CA2144391A1 (en) Light transmission screen and its manufacturing method
JPS6472135A (en) Transmission type screen
JPS5762052A (en) Original plate to be projected for use in transmission
GB1032893A (en) Stereoscopic pictures and methods for their production
JPS6456430A (en) Adjustment of variations in optical density of 3-d image
EP0361917A3 (en) Rear-projection screen
JPS5271944A (en) Projection-type color tv unit
JPS56117226A (en) Transmissive projection screen
JPS56142501A (en) Fresnel lens sheet
JPS5315140A (en) Image forming particles
JPS56157186A (en) Projecting device of television picture
JPS5358235A (en) Projection screen
JPS578536A (en) Transmission type screen
JPS57191627A (en) Back projection type screen
JPS5320347A (en) Viewer for pseudo-stereo image
JPS57210332A (en) Transmission type screen
JPS5616384A (en) Transmissive type color television apparatus
JPS5339822A (en) Transition type television display unit
JPS566230A (en) Screen
JPS5211045A (en) Optical parallel picture arranging system
JPS55111936A (en) Screen composed of acrylic laminated highly light diffusing plate and fresnel lens
US2202737A (en) Photographic filter
JPS54104238A (en) Display unit
JPS5368929A (en) Magnetic bubble driving device
JPS56165135A (en) Transmission type screen