FR2256422A1 - - Google Patents

Info

Publication number
FR2256422A1
FR2256422A1 FR7500051A FR7500051A FR2256422A1 FR 2256422 A1 FR2256422 A1 FR 2256422A1 FR 7500051 A FR7500051 A FR 7500051A FR 7500051 A FR7500051 A FR 7500051A FR 2256422 A1 FR2256422 A1 FR 2256422A1
Authority
FR
France
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
FR7500051A
Other languages
French (fr)
Other versions
FR2256422B3 (is"
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.)
Rank Organization Ltd
Original Assignee
Rank Organization 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 Rank Organization Ltd filed Critical Rank Organization Ltd
Publication of FR2256422A1 publication Critical patent/FR2256422A1/fr
Application granted granted Critical
Publication of FR2256422B3 publication Critical patent/FR2256422B3/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/008—Systems specially adapted to form image relays or chained systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR7500051A 1974-01-02 1975-01-02 Expired FR2256422B3 (is")

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9574A GB1443271A (en) 1974-01-02 1974-01-02 Reflex lens systems

Publications (2)

Publication Number Publication Date
FR2256422A1 true FR2256422A1 (is") 1975-07-25
FR2256422B3 FR2256422B3 (is") 1977-09-30

Family

ID=9698312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500051A Expired FR2256422B3 (is") 1974-01-02 1975-01-02

Country Status (4)

Country Link
JP (1) JPS50107926A (is")
DE (1) DE2500070A1 (is")
FR (1) FR2256422B3 (is")
GB (1) GB1443271A (is")

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019484B2 (ja) * 1975-11-07 1985-05-16 キヤノン株式会社 複写用レンズ
US4056308A (en) * 1976-03-03 1977-11-01 Xerox Corporation Variable focal length reflector lens system
US4060312A (en) * 1976-09-03 1977-11-29 Bell & Howell Company Copier lens of reflex design
US4062625A (en) * 1976-09-03 1977-12-13 Bell & Howell Company Reflex copier lens
US4108539A (en) * 1976-11-18 1978-08-22 Hewlett-Packard Company Reflecting lens system
US4171871A (en) * 1977-06-30 1979-10-23 International Business Machines Corporation Achromatic unit magnification optical system
US4344676A (en) * 1979-10-09 1982-08-17 The Perkin-Elmer Corporation Single element spherical surfaced optics insensitive to wavelength and temperature
US5052763A (en) * 1990-08-28 1991-10-01 International Business Machines Corporation Optical system with two subsystems separately correcting odd aberrations and together correcting even aberrations

Also Published As

Publication number Publication date
FR2256422B3 (is") 1977-09-30
GB1443271A (en) 1976-07-21
DE2500070A1 (de) 1975-07-10
JPS50107926A (is") 1975-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse