BE789070A - OPTISCHE FILTERS - Google Patents

OPTISCHE FILTERS

Info

Publication number
BE789070A
BE789070A BE789070DA BE789070A BE 789070 A BE789070 A BE 789070A BE 789070D A BE789070D A BE 789070DA BE 789070 A BE789070 A BE 789070A
Authority
BE
Belgium
Prior art keywords
optische
filters
optische filters
Prior art date
Application number
Other languages
French (fr)
Inventor
A.G. Agfa-Gevaert
Original Assignee
Agfa Gevaert Nv
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.)
Publication date
Publication of BE789070A publication Critical patent/BE789070A/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Optical Filters (AREA)
BE789070D 1971-09-22 OPTISCHE FILTERS BE789070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712147261 DE2147261C3 (en) 1971-09-22 1971-09-22 Optical wedge filter and process for its manufacture

Publications (1)

Publication Number Publication Date
BE789070A true BE789070A (en) 1973-03-21

Family

ID=5820250

Family Applications (1)

Application Number Title Priority Date Filing Date
BE789070D BE789070A (en) 1971-09-22 OPTISCHE FILTERS

Country Status (6)

Country Link
JP (1) JPS577410B2 (en)
BE (1) BE789070A (en)
DE (1) DE2147261C3 (en)
FR (1) FR2153447B1 (en)
GB (1) GB1392564A (en)
IT (1) IT965428B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1243279C (en) * 2002-07-30 2006-02-22 佳能电子株式会社 Manufacturing method of filter, light flux diaphragm device and camera having the filter

Also Published As

Publication number Publication date
GB1392564A (en) 1975-04-30
FR2153447B1 (en) 1976-10-29
DE2147261A1 (en) 1973-03-29
IT965428B (en) 1974-01-31
DE2147261B2 (en) 1979-05-23
DE2147261C3 (en) 1980-02-07
FR2153447A1 (en) 1973-05-04
JPS577410B2 (en) 1982-02-10
JPS4841752A (en) 1973-06-18

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