DE2025688B2 - Lichtfiltersystem mit veraenderlicher dichte - Google Patents

Lichtfiltersystem mit veraenderlicher dichte

Info

Publication number
DE2025688B2
DE2025688B2 DE19702025688 DE2025688A DE2025688B2 DE 2025688 B2 DE2025688 B2 DE 2025688B2 DE 19702025688 DE19702025688 DE 19702025688 DE 2025688 A DE2025688 A DE 2025688A DE 2025688 B2 DE2025688 B2 DE 2025688B2
Authority
DE
Germany
Prior art keywords
filter system
light filter
variable density
variable
density
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.)
Withdrawn
Application number
DE19702025688
Other languages
English (en)
Other versions
DE2025688A1 (de
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 DE2025688A1 publication Critical patent/DE2025688A1/de
Publication of DE2025688B2 publication Critical patent/DE2025688B2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G03C1/732—Leuco dyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/022—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs
    • A61F9/023—Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs with variable transmission, e.g. photochromic
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/163—Radiation-chromic compound

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Optical Filters (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
DE19702025688 1969-06-30 1970-05-19 Lichtfiltersystem mit veraenderlicher dichte Withdrawn DE2025688B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83776469A 1969-06-30 1969-06-30

Publications (2)

Publication Number Publication Date
DE2025688A1 DE2025688A1 (de) 1971-05-13
DE2025688B2 true DE2025688B2 (de) 1971-10-28

Family

ID=25275347

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702025688 Withdrawn DE2025688B2 (de) 1969-06-30 1970-05-19 Lichtfiltersystem mit veraenderlicher dichte

Country Status (8)

Country Link
US (1) US3645909A (de)
JP (1) JPS5241228B1 (de)
CA (1) CA920788A (de)
DE (1) DE2025688B2 (de)
FR (1) FR2054599B3 (de)
GB (1) GB1313685A (de)
IL (1) IL34535A0 (de)
NL (1) NL7009529A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116706U (ja) * 1984-01-13 1985-08-07 株式会社ヨコオ 自動伸縮給電ポ−ル装置
FR2758336B1 (fr) * 1997-01-10 1999-02-12 Oreal Utilisation d'un composant particulier pour ameliorer le photochromisme d'un compose initialement photochrome

Also Published As

Publication number Publication date
IL34535A0 (en) 1970-07-19
NL7009529A (de) 1971-01-04
FR2054599A7 (de) 1971-04-23
DE2025688A1 (de) 1971-05-13
GB1313685A (en) 1973-04-18
CA920788A (en) 1973-02-13
FR2054599B3 (de) 1973-04-06
JPS5241228B1 (de) 1977-10-17
US3645909A (en) 1972-02-29

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee