JPS6459226A - Projection type projector - Google Patents

Projection type projector

Info

Publication number
JPS6459226A
JPS6459226A JP62215457A JP21545787A JPS6459226A JP S6459226 A JPS6459226 A JP S6459226A JP 62215457 A JP62215457 A JP 62215457A JP 21545787 A JP21545787 A JP 21545787A JP S6459226 A JPS6459226 A JP S6459226A
Authority
JP
Japan
Prior art keywords
mirror
curvature
reflection
image
light
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
JP62215457A
Other languages
Japanese (ja)
Other versions
JP2659542B2 (en
Inventor
Yukio Yada
Toki Maekawa
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 JP62215457A priority Critical patent/JP2659542B2/en
Publication of JPS6459226A publication Critical patent/JPS6459226A/en
Application granted granted Critical
Publication of JP2659542B2 publication Critical patent/JP2659542B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)

Abstract

PURPOSE:To make a space compact while holding the light emitting efficiency of an image on a light source side by enlarging and projecting the reduction of a vertical amplitude with the curvature of a reflection mirror and correcting the increase of a trapezoid modulating rate with the curvature of the reflection mirror. CONSTITUTION:Image light from the light source 1 is made incident on a mirror 3 after it is enlarged in a specified magnification by an optical system 2. The mirror 3 is a mirror constituted of cubic curved surface, in which one mirror works as two mirrors. Namely, the curvature of the mirror is adjusted so that the reduction of the vertical amplitude and the increase of the trapezoid modulating rate can be corrected with one reflection. Then, the excellent image can be observed on a screen 5 since the reflected light from the mirror 3 is corrected as stated above and made incident on the screen 5 through a prism 4. Thus, the space can be made compact.
JP62215457A 1987-08-31 1987-08-31 Rear projection type projection TV Expired - Lifetime JP2659542B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215457A JP2659542B2 (en) 1987-08-31 1987-08-31 Rear projection type projection TV

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215457A JP2659542B2 (en) 1987-08-31 1987-08-31 Rear projection type projection TV

Publications (2)

Publication Number Publication Date
JPS6459226A true JPS6459226A (en) 1989-03-06
JP2659542B2 JP2659542B2 (en) 1997-09-30

Family

ID=16672687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215457A Expired - Lifetime JP2659542B2 (en) 1987-08-31 1987-08-31 Rear projection type projection TV

Country Status (1)

Country Link
JP (1) JP2659542B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030001185A (en) * 2001-06-27 2003-01-06 최해용 Capsule type projection system.
JP2005043681A (en) * 2003-07-22 2005-02-17 Canon Inc Projection display apparatus
US7101052B2 (en) 2001-09-04 2006-09-05 Canon Kabushiki Kaisha Projection optical system and optical system
JP2006343526A (en) * 2005-06-09 2006-12-21 Nec Engineering Ltd Rear projection display apparatus
KR100708520B1 (en) * 2004-01-16 2007-04-16 최해용 Multi projecton system
WO2009057522A1 (en) * 2007-10-30 2009-05-07 Konica Minolta Opto, Inc. Scan type projection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4972245U (en) * 1972-10-05 1974-06-22
JPS6119232U (en) * 1984-07-06 1986-02-04 双葉電子工業株式会社 Reflector for overhead projector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4972245U (en) * 1972-10-05 1974-06-22
JPS6119232U (en) * 1984-07-06 1986-02-04 双葉電子工業株式会社 Reflector for overhead projector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030001185A (en) * 2001-06-27 2003-01-06 최해용 Capsule type projection system.
US7101052B2 (en) 2001-09-04 2006-09-05 Canon Kabushiki Kaisha Projection optical system and optical system
US7182466B2 (en) 2001-09-04 2007-02-27 Canon Kabushiki Kaisha Projection optical system and optical system
JP2005043681A (en) * 2003-07-22 2005-02-17 Canon Inc Projection display apparatus
KR100708520B1 (en) * 2004-01-16 2007-04-16 최해용 Multi projecton system
JP2006343526A (en) * 2005-06-09 2006-12-21 Nec Engineering Ltd Rear projection display apparatus
WO2009057522A1 (en) * 2007-10-30 2009-05-07 Konica Minolta Opto, Inc. Scan type projection device
JPWO2009057522A1 (en) * 2007-10-30 2011-03-10 コニカミノルタオプト株式会社 Scanning projector

Also Published As

Publication number Publication date
JP2659542B2 (en) 1997-09-30

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