FR1258550A - Improvements to infrared ray projectors and their filtration devices - Google Patents

Improvements to infrared ray projectors and their filtration devices

Info

Publication number
FR1258550A
FR1258550A FR827585A FR827585A FR1258550A FR 1258550 A FR1258550 A FR 1258550A FR 827585 A FR827585 A FR 827585A FR 827585 A FR827585 A FR 827585A FR 1258550 A FR1258550 A FR 1258550A
Authority
FR
France
Prior art keywords
infrared ray
filtration devices
ray projectors
projectors
filtration
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
FR827585A
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.)
Eltro GmbH and Co
Original Assignee
Eltro GmbH and Co
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 Eltro GmbH and Co filed Critical Eltro GmbH and Co
Priority to FR827585A priority Critical patent/FR1258550A/en
Application granted granted Critical
Publication of FR1258550A publication Critical patent/FR1258550A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/04—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out infrared radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR827585A 1960-05-18 1960-05-18 Improvements to infrared ray projectors and their filtration devices Expired FR1258550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR827585A FR1258550A (en) 1960-05-18 1960-05-18 Improvements to infrared ray projectors and their filtration devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR827585A FR1258550A (en) 1960-05-18 1960-05-18 Improvements to infrared ray projectors and their filtration devices

Publications (1)

Publication Number Publication Date
FR1258550A true FR1258550A (en) 1961-04-14

Family

ID=8731693

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827585A Expired FR1258550A (en) 1960-05-18 1960-05-18 Improvements to infrared ray projectors and their filtration devices

Country Status (1)

Country Link
FR (1) FR1258550A (en)

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