JPS55144226A - Image projector - Google Patents

Image projector

Info

Publication number
JPS55144226A
JPS55144226A JP5312579A JP5312579A JPS55144226A JP S55144226 A JPS55144226 A JP S55144226A JP 5312579 A JP5312579 A JP 5312579A JP 5312579 A JP5312579 A JP 5312579A JP S55144226 A JPS55144226 A JP S55144226A
Authority
JP
Japan
Prior art keywords
screen
aberration correction
correction lens
curvature
kinds
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
JP5312579A
Other languages
Japanese (ja)
Other versions
JPS6249602B2 (en
Inventor
Osamu Konosu
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 Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP5312579A priority Critical patent/JPS55144226A/en
Publication of JPS55144226A publication Critical patent/JPS55144226A/en
Publication of JPS6249602B2 publication Critical patent/JPS6249602B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Lenses (AREA)

Abstract

PURPOSE: To eliminate the need for changing the curvature of the light emitting surface of a braun tube gainst the change of screen by providing an aberration correction lens used for the device of projecting images on a screen by way of a concave mirror, movably in the main beam axis direction.
CONSTITUTION: A concave mirror 9 and fluorescent screen 10 are fixed to a holding and fixing means 11. An aberration correction lens 8 is designed in the position suitable for the intermediate curvature of two kinds of screens 1, 2 is fixed to a moving means 12 and is movable on the main beam axis Z-Z'. If the position of the aberration correction lens 8 is determined at, e.g., A, with respect to the screen 1 of a front projection type television, the sharp images having no deviations are obtainable in the screen 1. For the screen 2 of back projection type, only required is to determine the position of the aberration correction lens at, e.g., B. At this time, the radius of curvature of the fluorescent screen 10 may be constant and therefore there is no need for changing the kinds of the braun tube.
COPYRIGHT: (C)1980,JPO&Japio
JP5312579A 1979-04-27 1979-04-27 Image projector Granted JPS55144226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5312579A JPS55144226A (en) 1979-04-27 1979-04-27 Image projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5312579A JPS55144226A (en) 1979-04-27 1979-04-27 Image projector

Publications (2)

Publication Number Publication Date
JPS55144226A true JPS55144226A (en) 1980-11-11
JPS6249602B2 JPS6249602B2 (en) 1987-10-20

Family

ID=12934077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5312579A Granted JPS55144226A (en) 1979-04-27 1979-04-27 Image projector

Country Status (1)

Country Link
JP (1) JPS55144226A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2496534A (en) * 2013-01-14 2013-05-15 Stromberg Ind Aps Rear screen projection with curved screen
JP2017062247A (en) * 2012-05-30 2017-03-30 アイリス インターナショナル， インコーポレイテッド Flow cytometer
US10126227B2 (en) 2012-05-30 2018-11-13 Iris International, Inc. Flow cytometer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7173902B2 (en) * 2019-03-05 2022-11-16 デクセリアルズ株式会社 protective element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800085A (en) * 1972-10-20 1974-03-26 M Ambats Convertible direct viewing/projection t-v system
JPS519821A (en) * 1975-05-21 1976-01-26 Minolta Camera Kk
JPS5227728U (en) * 1975-08-19 1977-02-26

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227728B2 (en) * 1971-09-30 1977-07-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800085A (en) * 1972-10-20 1974-03-26 M Ambats Convertible direct viewing/projection t-v system
JPS519821A (en) * 1975-05-21 1976-01-26 Minolta Camera Kk
JPS5227728U (en) * 1975-08-19 1977-02-26

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017062247A (en) * 2012-05-30 2017-03-30 アイリス インターナショナル， インコーポレイテッド Flow cytometer
CN107014741A (en) * 2012-05-30 2017-08-04 艾瑞斯国际有限公司 Flow cytometer
US10126227B2 (en) 2012-05-30 2018-11-13 Iris International, Inc. Flow cytometer
US10209174B2 (en) 2012-05-30 2019-02-19 Iris International, Inc. Flow cytometer
US10330582B2 (en) 2012-05-30 2019-06-25 Iris International, Inc. Flow cytometer
JP2020020797A (en) * 2012-05-30 2020-02-06 アイリス インターナショナル， インコーポレイテッド Flow cytometer
JP2021060411A (en) * 2012-05-30 2021-04-15 アイリス インターナショナル， インコーポレイテッド Flow cytometer
US11255772B2 (en) 2012-05-30 2022-02-22 Iris International, Inc. Flow cytometer
US11703443B2 (en) 2012-05-30 2023-07-18 Iris International, Inc. Flow cytometer
GB2496534A (en) * 2013-01-14 2013-05-15 Stromberg Ind Aps Rear screen projection with curved screen
GB2496534B (en) * 2013-01-14 2013-10-09 Stromberg Ind Aps Rear screen projection apparatus and method

Also Published As

Publication number Publication date
JPS6249602B2 (en) 1987-10-20

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