FR852053A - Improvements to filters for light sources - Google Patents

Improvements to filters for light sources

Info

Publication number
FR852053A
FR852053A FR852053DA FR852053A FR 852053 A FR852053 A FR 852053A FR 852053D A FR852053D A FR 852053DA FR 852053 A FR852053 A FR 852053A
Authority
FR
France
Prior art keywords
filters
light sources
sources
light
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEOPARD LIGHTING ACCESSORIES L
Original Assignee
LEOPARD LIGHTING ACCESSORIES L
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 LEOPARD LIGHTING ACCESSORIES L filed Critical LEOPARD LIGHTING ACCESSORIES L
Application granted granted Critical
Publication of FR852053A publication Critical patent/FR852053A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/125—Coloured light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR852053D 1939-03-23 1939-03-23 Improvements to filters for light sources Expired FR852053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR852053T 1939-03-23

Publications (1)

Publication Number Publication Date
FR852053A true FR852053A (en) 1940-01-23

Family

ID=9326472

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852053D Expired FR852053A (en) 1939-03-23 1939-03-23 Improvements to filters for light sources

Country Status (1)

Country Link
FR (1) FR852053A (en)

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