GB1366416A - Rear projection viewer - Google Patents

Rear projection viewer

Info

Publication number: GB1366416A
Authority: GB; United Kingdom
Prior art keywords: rear projection; projection viewer; viewer; projection
Prior art date: 1971-08-24
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

GB3719172A

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.)

Polaroid Corp

Original Assignee

Polaroid Corp

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.)

1971-08-24

Filing date

1972-08-09

Publication date

1974-09-11

1972-08-09 Application filed by Polaroid Corp filed Critical Polaroid Corp

1974-09-11 Publication of GB1366416A publication Critical patent/GB1366416A/en

Status Expired legal-status Critical Current

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
- G03B21/625—Lenticular 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
- G03B21/10—Projectors with built-in or built-on screen

Landscapes

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

GB3719172A 1971-08-24 1972-08-09 Rear projection viewer Expired GB1366416A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US17446171A	1971-08-24	1971-08-24
US17437371A	1971-08-24	1971-08-24

Publications (1)

Publication Number	Publication Date
GB1366416A true GB1366416A (en)	1974-09-11

Family

ID=26870149

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB3719172A Expired GB1366416A (en)	1971-08-24	1972-08-09	Rear projection viewer

Country Status (5)

Country	Link
JP (1)	JPS4830929A (en)
DE (1)	DE2238466A1 (en)
FR (1)	FR2151328A5 (en)
GB (1)	GB1366416A (en)
IT (1)	IT962203B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4147408A (en) *	1976-12-23	1979-04-03	Polaroid Corporation	Back projection viewing screen
US4171881A (en) *	1978-01-30	1979-10-23	Gaf Corporation	Hand held motion picture viewer
JPS6347866Y2 (en) *	1980-02-08	1988-12-09
JPS5846336A (en) *	1981-09-14	1983-03-17	Mitsubishi Rayon Co Ltd	Transmissive screen
JPS5865427A (en) *	1981-10-14	1983-04-19	Matsushita Electric Ind Co Ltd	Screen
JPS5879731U (en) *	1981-11-26	1983-05-30	ソニー株式会社	rear projector device
DE3150135A1 (en) *	1981-12-18	1983-06-30	Homann, Jochen, 4030 Ratingen	DEVICE FOR ADVERTISING AND / OR INFORMATION PURPOSES
JPS5923334A (en) *	1982-07-29	1984-02-06	Victor Co Of Japan Ltd	Transmission type screen
JPS5995525A (en) *	1982-11-24	1984-06-01	Mitsubishi Rayon Co Ltd	Back projection screen
NL8600184A (en) *	1986-01-28	1987-08-17	Philips Nv	TRANSPARENT PROJECTION SYSTEM.
US5311910A (en) *	1991-02-20	1994-05-17	Kabushiki Kaisha Showa Seisakusho	Cap attachment structure for accumulator

1972
- 1972-08-04 DE DE2238466A patent/DE2238466A1/en not_active Withdrawn
- 1972-08-09 GB GB3719172A patent/GB1366416A/en not_active Expired
- 1972-08-21 FR FR7229808A patent/FR2151328A5/fr not_active Expired
- 1972-08-23 IT IT52323/72A patent/IT962203B/en active
- 1972-08-24 JP JP47084175A patent/JPS4830929A/ja active Pending

Also Published As

Publication number	Publication date
IT962203B (en)	1973-12-20
JPS4830929A (en)	1973-04-23
DE2238466A1 (en)	1973-03-08
FR2151328A5 (en)	1973-04-13

Publication	Publication Date	Title
CA968598A (en)	1975-06-03	Rear projection screen
CA956819A (en)	1974-10-29	Projection screen
GB1366416A (en)	1974-09-11	Rear projection viewer
AU471985B2 (en)	1973-09-20	A projection viewer
GB1369684A (en)	1974-10-09	Rear projection screens
CA971619A (en)	1975-07-22	Microfilm viewer-printer
HK20776A (en)	1976-04-15	Cinematographic projector
CA958926A (en)	1974-12-10	Microfilm viewer
AU6183573A (en)	1975-05-01	Picture projector
CA956494A (en)	1974-10-22	Projection system
CA972994A (en)	1975-08-19	Microform viewer indexing means
CA976007A (en)	1975-10-14	Rear projection viewer
CA961875A (en)	1975-01-28	Picture projector
CA979252A (en)	1975-12-09	Panoramic projector
CA973744A (en)	1975-09-02	Microfilm re-enlargement
CA963927A (en)	1975-03-04	Picture projector
CA949789A (en)	1974-06-25	Photographic viewer
CA882258A (en)	1971-09-28	Projector
CA880439A (en)	1971-09-07	Projector
CA942547A (en)	1974-02-26	Projector
CA930994A (en)	1973-07-31	Viewer
JPS54148527A (en)	1979-11-20	Microfilm viewer
CA854961A (en)	1970-11-03	Multi-photographic projector
CA864241A (en)	1971-02-23	Projection screen
CA34384S (en)	1971-09-13	Movie projector

Legal Events

Date	Code	Title	Description
1975-01-22	PS	Patent sealed [section 19, patents act 1949]
1981-03-25	PCNP	Patent ceased through non-payment of renewal fee