DE1043991B - Infrared filter for emitters, preferably for headlights - Google Patents

Infrared filter for emitters, preferably for headlights

Info

Publication number
DE1043991B
DE1043991B DEL28233A DEL0028233A DE1043991B DE 1043991 B DE1043991 B DE 1043991B DE L28233 A DEL28233 A DE L28233A DE L0028233 A DEL0028233 A DE L0028233A DE 1043991 B DE1043991 B DE 1043991B
Authority
DE
Germany
Prior art keywords
headlights
filter
infrared filter
emitters
infrared
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.)
Pending
Application number
DEL28233A
Other languages
German (de)
Inventor
Wolfgang Hoepfner
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL28233A priority Critical patent/DE1043991B/en
Priority to CH6251158A priority patent/CH363628A/en
Publication of DE1043991B publication Critical patent/DE1043991B/en
Pending 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
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
    • 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
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters

Description

Infrarot-Filter für Strahler, vorzugsweise für Scheinwerfer Die Erfindung betrifft ein aus Filterschicht und Trägerkörper bestehendes Infrarot-Filter für Strahler, vorzugsweise für Scheinwerfer. Infrarot-Filter werden 'hauptsächlich für Scheinwerfer benötigt. Für Scheinwerfer wurden diese Filter bisher in Form von Planscheiben ausgebildet, während bestimmte Strahlungsverteilungen, die eventuell gefordert wurden, durch zusätzliche Optiken, z. B. Linsen, Streuer u. dgl., vor oder hinter dem Filter vorgesehen wurden. Bei diesen Systemen treten Strahlungsverluste durch Absorption im Filter und in der Optik sowie durch Reflexion in dem Raum zwischen Optik und Filter auf.Infrared filter for radiators, preferably for headlights The invention relates to an infrared filter consisting of a filter layer and a support body for Spotlights, preferably for headlights. Infrared filters are mainly used for Headlights needed. For headlights, these filters were previously in the form of face plates formed, while certain radiation distributions, which may have been required, through additional optics, e.g. B. lenses, scatterers, etc., in front of or behind the filter were provided. In these systems, radiation losses occur through absorption in the filter and in the optics as well as by reflection in the space between optics and Filter on.

Bei dem erfindungsgemäß ausgebildeten Filter wird ein Minimum an Absorptions- und Reflexionsverlusten dadurch erzielt, daß die Filterschicht auf einen Trägerkörper aufgebracht ist, der als optisches System, vorzugsweise als Streuer, ausgebildet ist, so daß durch seine Formgebung eine gewünschte Strahlungsverteilung erzielbar ist.In the case of the filter designed according to the invention, a minimum of absorption and reflection losses achieved by placing the filter layer on a carrier body is applied, which is designed as an optical system, preferably as a spreader is, so that a desired radiation distribution can be achieved by its shape is.

In den Fig. 1 und 2 ist ein Ausführungsbeispiel der Erfindung dargestellt.1 and 2, an embodiment of the invention is shown.

Das Infrarot-Filter, das aus einem Trägerkörper 1 mit einer Filterschicht 3 besteht, ist gekrümmt ausgebildet und besitzt auf seiner inneren Oberfläche eine Riffelung 2 zur Herbeiführung einer definierten Streuung. Es sind selbstverständlich auch andere Ausführungsformen der Erfindung denkbar, die sich hauptsächlich nach der geforderten Lichtverteilung des Strahlers richten. So ist es unter Umständen zweckmäßig, das Filter als Planscheibe mit einer einseitigen Riffelung auszubilden bzw. für einen anderen Fall das Filter selbst als optische Linse in der Weise auszubilden, daß man es mit gekrümmten Oberflächen, beispielsweise in der Art einer Sammellinse, ausbildet.The infrared filter, which consists of a carrier body 1 with a filter layer 3 is formed is curved and has on its inner surface a Corrugation 2 to bring about a defined spread. It goes without saying other embodiments of the invention are also conceivable, which are mainly based on the required light distribution of the spotlight. It may be like that It is expedient to design the filter as a faceplate with corrugation on one side or for another case to design the filter itself as an optical lens in such a way that that it can be used with curved surfaces, for example in the manner of a converging lens, trains.

Claims (1)

PATENTANSPRUCH: Infrarot-Filter, bestehend aus Filterschicht und Trägerkörper, für Strahler, vorzugsweise für Scheinwerfer, dadurch gekennzeichnet, daß das Filter als optisches System, vorzugsweise als Streuer, ausgebildet ist, so daß durch seine Formgebung eine gewünschte Strahlungsverteilung erzielbar ist.PATENT CLAIM: Infrared filter, consisting of filter layer and carrier body, for spotlights, preferably for headlights, characterized in that the filter is designed as an optical system, preferably as a spreader, so that by its Shaping a desired radiation distribution can be achieved.
DEL28233A 1957-08-01 1957-08-01 Infrared filter for emitters, preferably for headlights Pending DE1043991B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEL28233A DE1043991B (en) 1957-08-01 1957-08-01 Infrared filter for emitters, preferably for headlights
CH6251158A CH363628A (en) 1957-08-01 1958-08-01 Infrared filter for emitters, preferably for headlights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL28233A DE1043991B (en) 1957-08-01 1957-08-01 Infrared filter for emitters, preferably for headlights

Publications (1)

Publication Number Publication Date
DE1043991B true DE1043991B (en) 1958-11-20

Family

ID=7264440

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL28233A Pending DE1043991B (en) 1957-08-01 1957-08-01 Infrared filter for emitters, preferably for headlights

Country Status (2)

Country Link
CH (1) CH363628A (en)
DE (1) DE1043991B (en)

Also Published As

Publication number Publication date
CH363628A (en) 1962-08-15

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