GB983342A - Improvements in or relating to lens systems - Google Patents

Improvements in or relating to lens systems

Info

Publication number
GB983342A
GB983342A GB1560963A GB1560963A GB983342A GB 983342 A GB983342 A GB 983342A GB 1560963 A GB1560963 A GB 1560963A GB 1560963 A GB1560963 A GB 1560963A GB 983342 A GB983342 A GB 983342A
Authority
GB
United Kingdom
Prior art keywords
lens
relating
lens systems
elements
lens system
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
GB1560963A
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.)
EDNALITE CORP
Original Assignee
EDNALITE 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 EDNALITE CORP filed Critical EDNALITE CORP
Publication of GB983342A publication Critical patent/GB983342A/en
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
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

983,342. Lens systems. EDNALITE CORPORATION. April 19, 1963 [Dec,19, 1962], No. 15609/63. Drawings to Specification. Heading G2J. A lens system comprises a plurality of optically aligned lens elements each having at least one spherical surface, the rearmost lens with respect to the object having a plane reflective rear surface, so that light from the object is reflected and again passes through the lens system to form an image that is in front of the lens system. The number of elements in the system is one-half of the number required in an equivalent symmetrical system plus one. Data is given for one example.
GB1560963A 1962-12-19 1963-04-19 Improvements in or relating to lens systems Expired GB983342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24581262A 1962-12-19 1962-12-19

Publications (1)

Publication Number Publication Date
GB983342A true GB983342A (en) 1965-02-17

Family

ID=22928179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1560963A Expired GB983342A (en) 1962-12-19 1963-04-19 Improvements in or relating to lens systems

Country Status (1)

Country Link
GB (1) GB983342A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688218A (en) * 1971-01-29 1972-08-29 Us Army Stimulated radiation cavity reflector
DE2157058A1 (en) * 1971-11-17 1973-05-24 Zeiss Carl Fa MIRROR LENS LENS FOR AN IMAGE WITH A COMMON OBJECT AND IMAGE SIDE
US3778134A (en) * 1971-01-15 1973-12-11 Bausch & Lomb Reflective half-lens rectifier
GB2227104A (en) * 1989-01-09 1990-07-18 Asahi Optical Co Ltd Optical system for use with a viewfinder
US5140459A (en) * 1989-08-29 1992-08-18 Texas Instruments Apparatus and method for optical relay and reimaging

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778134A (en) * 1971-01-15 1973-12-11 Bausch & Lomb Reflective half-lens rectifier
US3688218A (en) * 1971-01-29 1972-08-29 Us Army Stimulated radiation cavity reflector
DE2157058A1 (en) * 1971-11-17 1973-05-24 Zeiss Carl Fa MIRROR LENS LENS FOR AN IMAGE WITH A COMMON OBJECT AND IMAGE SIDE
GB2227104A (en) * 1989-01-09 1990-07-18 Asahi Optical Co Ltd Optical system for use with a viewfinder
GB2227104B (en) * 1989-01-09 1993-03-31 Asahi Optical Co Ltd Viewfinder
US5140459A (en) * 1989-08-29 1992-08-18 Texas Instruments Apparatus and method for optical relay and reimaging

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