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GB1257011A - - Google Patents

Info

Publication number
GB1257011A
GB1257011A GB1257011DA GB1257011A GB 1257011 A GB1257011 A GB 1257011A GB 1257011D A GB1257011D A GB 1257011DA GB 1257011 A GB1257011 A GB 1257011A
Authority
GB
United Kingdom
Prior art keywords
image
radiation
glass
brightness
subjected
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
Other languages
English (en)
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 filed Critical
Publication of GB1257011A publication Critical patent/GB1257011A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/23—Photochromic filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)
GB1257011D 1965-10-27 1965-10-27 Expired GB1257011A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4551865 1965-10-27

Publications (1)

Publication Number Publication Date
GB1257011A true GB1257011A (de) 1971-12-15

Family

ID=10437525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257011D Expired GB1257011A (de) 1965-10-27 1965-10-27

Country Status (1)

Country Link
GB (1) GB1257011A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419550A1 (de) * 1994-06-03 1995-12-07 Vkt Video Kontroll Technik Gmb Kamera mit selbsttätiger Lichtmengenregelung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4419550A1 (de) * 1994-06-03 1995-12-07 Vkt Video Kontroll Technik Gmb Kamera mit selbsttätiger Lichtmengenregelung

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Legal Events

Date Code Title Description
PS Patent sealed