ATE2763T1 - Objektiv zur wiedergabe von video-platten. - Google Patents

Objektiv zur wiedergabe von video-platten.

Info

Publication number
ATE2763T1
ATE2763T1 AT80300232T AT80300232T ATE2763T1 AT E2763 T1 ATE2763 T1 AT E2763T1 AT 80300232 T AT80300232 T AT 80300232T AT 80300232 T AT80300232 T AT 80300232T AT E2763 T1 ATE2763 T1 AT E2763T1
Authority
AT
Austria
Prior art keywords
lens
playing video
video discs
videodiscs
flatness
Prior art date
Application number
AT80300232T
Other languages
English (en)
Inventor
Lee Mickleson
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Application granted granted Critical
Publication of ATE2763T1 publication Critical patent/ATE2763T1/de

Links

Classifications

    • 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
    • G02B21/00—Microscopes
    • G02B21/02—Objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)
  • Optical Head (AREA)
  • Glass Compositions (AREA)
  • Laminated Bodies (AREA)
  • Image Input (AREA)
AT80300232T 1979-01-25 1980-01-24 Objektiv zur wiedergabe von video-platten. ATE2763T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/006,327 US4286848A (en) 1979-01-25 1979-01-25 Reproducing objective lens for videodiscs
EP80300232A EP0014549B1 (de) 1979-01-25 1980-01-24 Objektiv zur Wiedergabe von Video-Platten

Publications (1)

Publication Number Publication Date
ATE2763T1 true ATE2763T1 (de) 1983-03-15

Family

ID=21720355

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80300232T ATE2763T1 (de) 1979-01-25 1980-01-24 Objektiv zur wiedergabe von video-platten.

Country Status (8)

Country Link
US (1) US4286848A (de)
EP (1) EP0014549B1 (de)
JP (1) JPS55100518A (de)
AT (1) ATE2763T1 (de)
AU (1) AU533544B2 (de)
BR (1) BR8000279A (de)
CA (1) CA1120298A (de)
DE (1) DE3062242D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI461728B (zh) 2011-09-02 2014-11-21 Largan Precision Co Ltd 影像鏡組

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826116A (en) * 1955-05-24 1958-03-11 Canon Camera Co Photographic objective consisting of five lens elements
DE1472269A1 (de) * 1965-08-03 1969-03-06 Zeiss Carl Fa Photographisches Objektiv
JPS512366B1 (de) * 1971-05-24 1976-01-26
JPS5240148A (en) * 1975-09-25 1977-03-28 Olympus Optical Co Ltd Objective lens system for reproducing video disc

Also Published As

Publication number Publication date
CA1120298A (en) 1982-03-23
DE3062242D1 (en) 1983-04-28
AU5453880A (en) 1980-07-31
EP0014549A1 (de) 1980-08-20
JPS55100518A (en) 1980-07-31
BR8000279A (pt) 1980-10-07
US4286848A (en) 1981-09-01
AU533544B2 (en) 1983-12-01
EP0014549B1 (de) 1983-03-09

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties