FR1575087A - - Google Patents

Info

Publication number
FR1575087A
FR1575087A FR1575087DA FR1575087A FR 1575087 A FR1575087 A FR 1575087A FR 1575087D A FR1575087D A FR 1575087DA FR 1575087 A FR1575087 A FR 1575087A
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.)
Expired
Application number
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR1575087A publication Critical patent/FR1575087A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • G02B26/023—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light comprising movable attenuating elements, e.g. neutral density filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/006—Filter holders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Blocking Light For Cameras (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
FR1575087D 1967-07-24 1968-07-23 Expired FR1575087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3395467A GB1180810A (en) 1967-07-24 1967-07-24 Improvements in and relating to Photographic Light Filtration Systems and Filters therefor.

Publications (1)

Publication Number Publication Date
FR1575087A true FR1575087A (en) 1969-07-18

Family

ID=10359535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1575087D Expired FR1575087A (en) 1967-07-24 1968-07-23

Country Status (3)

Country Link
DE (1) DE1772899A1 (en)
FR (1) FR1575087A (en)
GB (1) GB1180810A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078330A1 (en) * 1981-10-29 1983-05-11 GTE Products Corporation Multilamp photoflash unit with functional label
HU212953B (en) * 1990-07-02 1996-12-30 Marton Color filter adapter of variable color

Also Published As

Publication number Publication date
GB1180810A (en) 1970-02-11
DE1772899A1 (en) 1971-06-16

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Legal Events

Date Code Title Description
ST Notification of lapse