CH475567A - Procedure for protecting optical devices emitting natural and / or extraneous light against detection by IR radiation at night - Google Patents

Procedure for protecting optical devices emitting natural and / or extraneous light against detection by IR radiation at night

Info

Publication number
CH475567A
CH475567A CH895668A CH895668A CH475567A CH 475567 A CH475567 A CH 475567A CH 895668 A CH895668 A CH 895668A CH 895668 A CH895668 A CH 895668A CH 475567 A CH475567 A CH 475567A
Authority
CH
Switzerland
Prior art keywords
night
radiation
procedure
optical devices
extraneous light
Prior art date
Application number
CH895668A
Other languages
German (de)
Inventor
Rocholl Martin Gottf Dipl-Chem
Original Assignee
Eltro Gmbh
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 filed Critical Eltro Gmbh
Publication of CH475567A publication Critical patent/CH475567A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H3/00—Camouflage, i.e. means or methods for concealment or disguise

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
CH895668A 1967-09-01 1968-06-17 Procedure for protecting optical devices emitting natural and / or extraneous light against detection by IR radiation at night CH475567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0034705 1967-09-01

Publications (1)

Publication Number Publication Date
CH475567A true CH475567A (en) 1969-07-15

Family

ID=7076930

Family Applications (1)

Application Number Title Priority Date Filing Date
CH895668A CH475567A (en) 1967-09-01 1968-06-17 Procedure for protecting optical devices emitting natural and / or extraneous light against detection by IR radiation at night

Country Status (4)

Country Link
BE (1) BE720161A (en)
CH (1) CH475567A (en)
DE (1) DE1578332A1 (en)
NL (1) NL6809616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131473A2 (en) * 1983-07-12 1985-01-16 Kiyoshi Nagai Composite filter and the use of such a filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700202C1 (en) * 1977-01-05 1983-02-03 Günter Dr.-Ing. 6903 Neckargemünd Pusch Broadband camouflage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131473A2 (en) * 1983-07-12 1985-01-16 Kiyoshi Nagai Composite filter and the use of such a filter
EP0131473A3 (en) * 1983-07-12 1987-09-16 Kiyoshi Nagai Composite filter, observation system and filamentary display device

Also Published As

Publication number Publication date
BE720161A (en) 1969-02-03
DE1578332A1 (en) 1972-02-03
NL6809616A (en) 1969-03-04

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Legal Events

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