IT965428B - Filtro ottico a cuneo e procedi mento per fabbricarlo - Google Patents

Filtro ottico a cuneo e procedi mento per fabbricarlo

Info

Publication number
IT965428B
IT965428B IT5285472A IT5285472A IT965428B IT 965428 B IT965428 B IT 965428B IT 5285472 A IT5285472 A IT 5285472A IT 5285472 A IT5285472 A IT 5285472A IT 965428 B IT965428 B IT 965428B
Authority
IT
Italy
Prior art keywords
manufacture
optical wedge
wedge filter
filter
optical
Prior art date
Application number
IT5285472A
Other languages
English (en)
Italian (it)
Original Assignee
Agfa Gevaert Ag
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 Agfa Gevaert Ag filed Critical Agfa Gevaert Ag
Application granted granted Critical
Publication of IT965428B publication Critical patent/IT965428B/it

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)
IT5285472A 1971-09-22 1972-09-20 Filtro ottico a cuneo e procedi mento per fabbricarlo IT965428B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712147261 DE2147261C3 (de) 1971-09-22 1971-09-22 Optisches Keilfilter und Verfahren zu seiner Herstellung

Publications (1)

Publication Number Publication Date
IT965428B true IT965428B (it) 1974-01-31

Family

ID=5820250

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5285472A IT965428B (it) 1971-09-22 1972-09-20 Filtro ottico a cuneo e procedi mento per fabbricarlo

Country Status (6)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1243279C (zh) * 2002-07-30 2006-02-22 佳能电子株式会社 滤光片制造方法、有该滤光片的光通量光阑装置和照相机

Also Published As

Publication number Publication date
DE2147261C3 (de) 1980-02-07
DE2147261A1 (de) 1973-03-29
JPS577410B2 (ref) 1982-02-10
FR2153447A1 (ref) 1973-05-04
JPS4841752A (ref) 1973-06-18
BE789070A (fr) 1973-03-21
GB1392564A (en) 1975-04-30
FR2153447B1 (ref) 1976-10-29
DE2147261B2 (de) 1979-05-23

Similar Documents

Publication Publication Date Title
IT947811B (it) Processo ed impianto di adsorbi mento
IT947940B (it) Processo migliorato di idroraffinazione
IT975341B (it) Elemento filtrante
BE788892A (fr) Perfectionnements apportes aux echafaudages
SE408374B (sv) Bandfilter
AT339956B (de) Filteranordnung
IT960317B (it) Policarbonati modificati e proce dimento per produrli
BE788559A (fr) Ensemble de filtre
CH507014A (de) Filterpresse
AT329591B (de) Filter- und wasser-ruckgewinnungs-anordnung
BE783831A (fr) Elektromechanisch filter
CH497910A (de) Filtrietverfahren
BR7208032D0 (pt) Processo de purificacao de acrilonitrila
BR7207041D0 (pt) Filtro-prensa
AT320535B (de) Brunnenfilter
CH545126A (de) Staubfilter
IT954223B (it) Perfezionamenti in o relativi a piastrine per orecchie
IT987584B (it) Elemento filtrante
IT960322B (it) Processo di stampaggio
IT965428B (it) Filtro ottico a cuneo e procedi mento per fabbricarlo
AR198117A1 (es) Filtro o tamiz optico mejorado y un metodo para producirlo
IT941236B (it) Processo ed elementi fotografici per formare immagini positive dirette
BR7208557D0 (pt) Processo de purificacao de tiolcarbamatos
IT961734B (it) Perfezionamento negli elementi filtranti fibrosi
BE790668A (fr) Element filtrant