JPS5579427A - Video projector - Google Patents

Video projector

Info

Publication number
JPS5579427A
JPS5579427A JP15439878A JP15439878A JPS5579427A JP S5579427 A JPS5579427 A JP S5579427A JP 15439878 A JP15439878 A JP 15439878A JP 15439878 A JP15439878 A JP 15439878A JP S5579427 A JPS5579427 A JP S5579427A
Authority
JP
Japan
Prior art keywords
projector
video
video image
screen
projection
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.)
Pending
Application number
JP15439878A
Other languages
Japanese (ja)
Inventor
Isao Moriguchi
Masami Itoga
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 Electric Corp
Original Assignee
Mitsubishi Electric 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.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15439878A priority Critical patent/JPS5579427A/en
Publication of JPS5579427A publication Critical patent/JPS5579427A/en
Pending legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)

Abstract

PURPOSE: To project the video image of projector by sharing the projection type TV screen, by providing a video projector integrally in a projection unit of projection type TV.
CONSTITUTION: When projecting video images of broadcast programs or by VTR or the like through projection units 2aW2C of a video projector 1, if it is desired to insert captions in the video image being projected on the screen or produce other information on the screen, the other information is superposed on the video image projected by the projector 1 through a projecting part 4 by means of a slide projector 3. At this time, the beam current of the projector 1 is detected, which is used as control voltage to control the voltage of the light emitting part of the projector 3. Hence, the brightness of the video image superposed may be controlled.
COPYRIGHT: (C)1980,JPO&Japio
JP15439878A 1978-12-13 1978-12-13 Video projector Pending JPS5579427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15439878A JPS5579427A (en) 1978-12-13 1978-12-13 Video projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15439878A JPS5579427A (en) 1978-12-13 1978-12-13 Video projector

Publications (1)

Publication Number Publication Date
JPS5579427A true JPS5579427A (en) 1980-06-14

Family

ID=15583263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15439878A Pending JPS5579427A (en) 1978-12-13 1978-12-13 Video projector

Country Status (1)

Country Link
JP (1) JPS5579427A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660863U (en) * 1993-01-28 1994-08-23 株式会社電通プロックス Landscape simulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660863U (en) * 1993-01-28 1994-08-23 株式会社電通プロックス Landscape simulator

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