DK390187A - PROJECTION AND READING DEVICE - Google Patents

PROJECTION AND READING DEVICE

Info

Publication number
DK390187A
DK390187A DK390187A DK390187A DK390187A DK 390187 A DK390187 A DK 390187A DK 390187 A DK390187 A DK 390187A DK 390187 A DK390187 A DK 390187A DK 390187 A DK390187 A DK 390187A
Authority
DK
Denmark
Prior art keywords
light
path
screen
display
projection
Prior art date
Application number
DK390187A
Other languages
Danish (da)
Other versions
DK168252B1 (en
DK390187D0 (en
Inventor
Olof Oestberg
Takeda Tsunehiro
Iida Takeo
Fukui Yukio
Original Assignee
Olof Oestberg
Takeda Tsunehiro
Iida Takeo
Fukui Yukio
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
Priority claimed from JP60268216A external-priority patent/JPS62127723A/en
Application filed by Olof Oestberg, Takeda Tsunehiro, Iida Takeo, Fukui Yukio filed Critical Olof Oestberg
Publication of DK390187D0 publication Critical patent/DK390187D0/en
Publication of DK390187A publication Critical patent/DK390187A/en
Application granted granted Critical
Publication of DK168252B1 publication Critical patent/DK168252B1/en

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

A projection and display apparatus comprises a light source 1 and a projecting means 2 for projecting light beams from the light source towards an external screen. The apparatus comprises a first light-path 6 including an overhead projector sheet 16 for display on the screen and a second light-path 7 including a slide strip 23 for display on the screen. The light beams are selectively directed towards either of the light-paths 6, 7. Liquid crystal shutters 15, 27 are interposed in each light-path 6, 7 and are controlled by an electric voltage to selectively prevent or allow the passage of the light beams for selecting either the overhead projector sheet or the slide strip. <IMAGE>
DK390187A 1985-11-28 1987-07-27 Projection and display apparatus DK168252B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60268216A JPS62127723A (en) 1985-11-28 1985-11-28 Data projector/display device
JP26821685 1985-11-28
PCT/SE1986/000541 WO1987003385A1 (en) 1985-11-28 1986-11-26 A projection and display apparatus
SE8600541 1986-11-26

Publications (3)

Publication Number Publication Date
DK390187D0 DK390187D0 (en) 1987-07-27
DK390187A true DK390187A (en) 1987-07-27
DK168252B1 DK168252B1 (en) 1994-02-28

Family

ID=26548217

Family Applications (1)

Application Number Title Priority Date Filing Date
DK390187A DK168252B1 (en) 1985-11-28 1987-07-27 Projection and display apparatus

Country Status (2)

Country Link
DK (1) DK168252B1 (en)
NO (1) NO170656C (en)

Also Published As

Publication number Publication date
DK168252B1 (en) 1994-02-28
NO170656B (en) 1992-08-03
NO873123L (en) 1987-08-07
NO170656C (en) 1992-11-11
DK390187D0 (en) 1987-07-27
NO873123D0 (en) 1987-07-27

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed