NL7810313A - METHOD AND ARRANGEMENT FOR REGULATING THE INTENSITY OF LIGHT IN AN OPTICAL SYSTEM. - Google Patents

METHOD AND ARRANGEMENT FOR REGULATING THE INTENSITY OF LIGHT IN AN OPTICAL SYSTEM.

Info

Publication number
NL7810313A
NL7810313A NL7810313A NL7810313A NL7810313A NL 7810313 A NL7810313 A NL 7810313A NL 7810313 A NL7810313 A NL 7810313A NL 7810313 A NL7810313 A NL 7810313A NL 7810313 A NL7810313 A NL 7810313A
Authority
NL
Netherlands
Prior art keywords
regulating
intensity
arrangement
light
optical system
Prior art date
Application number
NL7810313A
Other languages
Dutch (nl)
Original Assignee
Elliott Brothers London Ltd
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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Publication of NL7810313A publication Critical patent/NL7810313A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/205—Neutral density filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • 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
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Diaphragms For Cameras (AREA)
  • Optical Elements Other Than Lenses (AREA)
NL7810313A 1977-11-22 1978-10-13 METHOD AND ARRANGEMENT FOR REGULATING THE INTENSITY OF LIGHT IN AN OPTICAL SYSTEM. NL7810313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4885577 1977-11-22

Publications (1)

Publication Number Publication Date
NL7810313A true NL7810313A (en) 1979-05-25

Family

ID=10450170

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7810313A NL7810313A (en) 1977-11-22 1978-10-13 METHOD AND ARRANGEMENT FOR REGULATING THE INTENSITY OF LIGHT IN AN OPTICAL SYSTEM.

Country Status (3)

Country Link
DE (1) DE2846662A1 (en)
IT (1) IT1108500B (en)
NL (1) NL7810313A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1251624A (en) * 1983-08-01 1989-03-28 Ronald A. Ferrante Gaussian laser beam filter
US4911711A (en) * 1986-12-05 1990-03-27 Taunton Technologies, Inc. Sculpture apparatus for correcting curvature of the cornea
FR2623293B1 (en) * 1987-11-13 1992-05-07 Angenieux P Ets SHOOTING OBJECTIVE COMPRISING A DEPTH OF FIELD REDUCING SYSTEM
US5111343A (en) * 1990-05-29 1992-05-05 Eastman Kodak Company Gradient filter
US5506614A (en) * 1993-07-12 1996-04-09 Xerox Corporation Selective optical elements for multiwavelength electronic print heads
US5947577A (en) * 1994-12-28 1999-09-07 Nec Corporation Image pick-up device
FR3143777A1 (en) * 2022-12-19 2024-06-21 Thales Filtering device with variable effect

Also Published As

Publication number Publication date
IT1108500B (en) 1985-12-09
IT7869562A0 (en) 1978-11-08
DE2846662A1 (en) 1979-05-23

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Legal Events

Date Code Title Description
BV The patent application has lapsed