JPS6218895B2 - - Google Patents

Info

Publication number
JPS6218895B2
JPS6218895B2 JP56127236A JP12723681A JPS6218895B2 JP S6218895 B2 JPS6218895 B2 JP S6218895B2 JP 56127236 A JP56127236 A JP 56127236A JP 12723681 A JP12723681 A JP 12723681A JP S6218895 B2 JPS6218895 B2 JP S6218895B2
Authority
JP
Japan
Prior art keywords
lens
light
focal length
primary mirror
mirror
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
JP56127236A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5828711A (ja
Inventor
Shigeru Aoki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56127236A priority Critical patent/JPS5828711A/ja
Publication of JPS5828711A publication Critical patent/JPS5828711A/ja
Publication of JPS6218895B2 publication Critical patent/JPS6218895B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08Catadioptric systems
    • G02B17/0856Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08Catadioptric systems
    • G02B17/0804Catadioptric systems using two curved mirrors
    • G02B17/0808Catadioptric systems using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08Catadioptric systems
    • G02B17/0852Catadioptric systems having a field corrector only
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08Catadioptric systems
    • G02B17/0884Catadioptric systems having a pupil corrector

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP56127236A 1981-08-12 1981-08-12 小型反射屈折式レンズ Granted JPS5828711A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56127236A JPS5828711A (ja) 1981-08-12 1981-08-12 小型反射屈折式レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56127236A JPS5828711A (ja) 1981-08-12 1981-08-12 小型反射屈折式レンズ

Publications (2)

Publication Number Publication Date
JPS5828711A JPS5828711A (ja) 1983-02-19
JPS6218895B2 true JPS6218895B2 (cg-RX-API-DMAC10.html) 1987-04-24

Family

ID=14955076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56127236A Granted JPS5828711A (ja) 1981-08-12 1981-08-12 小型反射屈折式レンズ

Country Status (1)

Country Link
JP (1) JPS5828711A (cg-RX-API-DMAC10.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63211555A (ja) * 1987-02-26 1988-09-02 東芝ライテック株式会社 管球の圧潰封止用治具
JPS63213255A (ja) * 1987-02-27 1988-09-06 東芝ライテック株式会社 管球の圧潰封止用治具
CN102955235B (zh) * 2011-08-22 2015-11-25 上海微电子装备有限公司 一种大视场折反射投影光学系统

Also Published As

Publication number Publication date
JPS5828711A (ja) 1983-02-19

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