JPS6235088B2 - - Google Patents

Info

Publication number
JPS6235088B2
JPS6235088B2 JP25206083A JP25206083A JPS6235088B2 JP S6235088 B2 JPS6235088 B2 JP S6235088B2 JP 25206083 A JP25206083 A JP 25206083A JP 25206083 A JP25206083 A JP 25206083A JP S6235088 B2 JPS6235088 B2 JP S6235088B2
Authority
JP
Japan
Prior art keywords
lens
group
optical path
prism
crt
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.)
Expired
Application number
JP25206083A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60143312A (ja
Inventor
Kazuo Matsuoka
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.)
NORITA KOGAKU KK
Original Assignee
NORITA KOGAKU KK
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 NORITA KOGAKU KK filed Critical NORITA KOGAKU KK
Priority to JP25206083A priority Critical patent/JPS60143312A/ja
Publication of JPS60143312A publication Critical patent/JPS60143312A/ja
Publication of JPS6235088B2 publication Critical patent/JPS6235088B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below
    • G02B13/16Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP25206083A 1983-12-29 1983-12-29 投影レンズ Granted JPS60143312A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25206083A JPS60143312A (ja) 1983-12-29 1983-12-29 投影レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25206083A JPS60143312A (ja) 1983-12-29 1983-12-29 投影レンズ

Publications (2)

Publication Number Publication Date
JPS60143312A JPS60143312A (ja) 1985-07-29
JPS6235088B2 true JPS6235088B2 (de) 1987-07-30

Family

ID=17231999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25206083A Granted JPS60143312A (ja) 1983-12-29 1983-12-29 投影レンズ

Country Status (1)

Country Link
JP (1) JPS60143312A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727452Y2 (ja) * 1985-08-06 1995-06-21 パイオニア株式会社 プロジェクションテレビにおける投射装置
JPH0812328B2 (ja) * 1985-10-21 1996-02-07 キヤノン株式会社 投影レンズ
WO2021256456A1 (ja) * 2020-06-19 2021-12-23 日本精機株式会社 ヘッドアップディスプレイ装置

Also Published As

Publication number Publication date
JPS60143312A (ja) 1985-07-29

Similar Documents

Publication Publication Date Title
JP3348899B2 (ja) 投写型テレビ用高速広角レンズ装置
JP3244606B2 (ja) レトロフォーカス型レンズ
JP3105805B2 (ja) 広画角液晶プロジェクションレンズシステム
JPH05113534A (ja) レトロフオーカス型レンズ
JPH08320433A (ja) 広角レンズ
CN109407288B (zh) 一种折反式超短焦投影镜头系统
CN116859557B (zh) 投影镜头及投影装置
WO2024007740A1 (zh) 一种超短焦光学系统及投影设备
JPH06175019A (ja) 背面投射方式tv用投射レンズシステム
JP2637317B2 (ja) 投写レンズ
JPH06208054A (ja) 背面投射方式tv用投射レンズシステム
JPS6235088B2 (de)
JPH0316002B2 (de)
JP2925188B2 (ja) レトロフォーカス型レンズ
EP0272719A1 (de) Projektionslinsensystem
JPH0812328B2 (ja) 投影レンズ
KR940001684Y1 (ko) 오버헤드 투영기용 망원 렌즈 조립체
CN112578610A (zh) 投影镜头及激光投影设备
JPH0392809A (ja) 反射屈折式光学系
JP3082928B2 (ja) ズームレンズ
JPH0233208Y2 (de)
CN219609328U (zh) 一种广角短焦投影镜头
US11822062B2 (en) Ultra-short focus projecting optical system and projection device
CN214201903U (zh) 一种光学系统及投影设备
JP3337256B2 (ja) 投射用ズームレンズ