DE1074527B - Transparent fabric reflector for forward and backward emission - Google Patents

Transparent fabric reflector for forward and backward emission

Info

Publication number
DE1074527B
DE1074527B DE1958P0021469 DEP0021469A DE1074527B DE 1074527 B DE1074527 B DE 1074527B DE 1958P0021469 DE1958P0021469 DE 1958P0021469 DE P0021469 A DEP0021469 A DE P0021469A DE 1074527 B DE1074527 B DE 1074527B
Authority
DE
Germany
Prior art keywords
reflector
transparent fabric
mirrored
backward emission
emission
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.)
Granted
Application number
DE1958P0021469
Other languages
German (de)
Other versions
DE1074527C2 (en
Inventor
Courbe voie Seme Edgar Hugues (Frankreich)
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.)
Les Piles Wonder SA
Original Assignee
Les Piles Wonder SA
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 Les Piles Wonder SA filed Critical Les Piles Wonder SA
Publication of DE1074527B publication Critical patent/DE1074527B/en
Application granted granted Critical
Publication of DE1074527C2 publication Critical patent/DE1074527C2/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
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Description

Reflektor aus durchsichtigem Stoff für Vorwärts- und Rückwärtsausstrahlung Es wird in manchen Fällen gewünscht, eine einzige Lichtquelle zur Aussendung eines Lichtbündels in eine bestimmte Richtung und gleichzeitig in eine andere Richtung zu verwenden.Transparent fabric reflector for forward and backward emission In some cases it is desired to have a single light source for emitting one Light beam in a certain direction and at the same time in another direction to use.

Es ist zu diesem Zweck bereits vorgeschlagen worden, Reflektoren, insbesondere Metallreflektoren, zu benutzen, deren Hinterteil mit Durchlaßöffnungen für das Licht versehen ist, deren Abmessungen und Formen beliebig sein können. Reflektoren dieser Art weisen insbesondere den Nachteil auf, daß das durch die öffnungen abgehende Licht eine schwache Stärke besitzt und daß die Strahlen in verschiedenen Richtungen verlaufen.For this purpose it has already been proposed to use reflectors, in particular metal reflectors to be used, the rear part of which is provided with passage openings for the light is provided, the dimensions and shapes of which can be any. Reflectors of this type have the particular disadvantage that the outgoing through the openings Light has a weak strength and that the rays go in different directions get lost.

Der Reflektor nach der Erfindung hat diesen Nachteil nicht, und seine Herstellung ist einfach und billig. Die Erfindung bezieht sich auf einen Reflektor aus durchsichtigem Stoff für Vorwärts- und Rückwärtsausstrahlungder Lichtquelle, dessen als Reflektor für die Vorwärtsausstrahlung wirkender Teil verspiegelt ist und dessen nichtverspiegelter Teil die Rückwärtsausstrahlung bewirkt, und sie besteht .darin, daß der nichtverspiegelte, in Scheitelnähe liegende Reflektorteil lichtbrechende und/oder totalreflektierende Mittel hat, durch welche die ihn .in rückwärtiger Richtung durchdringenden Lichtstrahlen parallel zur optischen Achse des Reflektors oder konvergierend oder divergierend gerichtet sind.The reflector according to the invention does not have this disadvantage, and his Manufacturing is easy and cheap. The invention relates to a reflector made of transparent fabric for forward and backward emission of the light source, whose part acting as a reflector for the forward radiation is mirrored and the non-reflective part of which causes the backward emission, and it exists .in that the non-mirrored reflector part located near the apex is refractive and / or has totally reflective means by which the him .in a rearward direction penetrating light rays parallel to the optical axis of the reflector or converging or are directed diverging.

Ein Ausführungsbeispiel oder Erfindung ist schematisch im Schnitt in ,der Zeichnung dargestellt.An embodiment or the invention is shown schematically in section shown in, the drawing.

Außer dem Sockel 1 weist der erfindungsgemäße Reflektor eine metallisierte Zone 2 auf, die in 3 endet. Die aus dem BrennpunktF der Glühlampe4 ausgehenden Lichtstrahlen werden nach vorn geworfen. Die Zone 5 des Reflektors ist dagegen durchsichtig, so daß die diese Zone treffenden Strahlen den Reflektor frei durchdringen können. Dadurch wird ein Teil des Lichtes entgegengesetzt der Reflexionsrichtung durchgelassen.In addition to the base 1, the reflector according to the invention has a metallized one Zone 2, which ends in 3. The light rays emanating from the focal point F of the incandescent lamp 4 are thrown forward. Zone 5 of the reflector, on the other hand, is transparent, see above that the rays hitting this zone can freely penetrate the reflector. Through this part of the light is transmitted in the opposite direction to the direction of reflection.

Im dargestellten Ausführungsbeispiel sind im Scheitelteil des Reflektors idie Flächen 6, 7, 8 und 9 so ausgebildet, daß auf Grund von Brechung und Totalreflexion die austretenden Lichtstrahlen parallel zur Richtung des Pfeiles f verlaufen.In the illustrated embodiment are in the apex of the reflector The surfaces 6, 7, 8 and 9 are designed in such a way that due to refraction and total reflection the emerging light rays run parallel to the direction of arrow f.

Die durch die Flächen 6, 7, 8 und 9 gebildeten Winkel hängen selbstverständlich von der Brechzahl des den Reflektor bildenden Materials ab. In jedem Einzelfall können diese Winkel durch Anwendung der bekannten optischen Gesetze bestimmt werden.The angles formed by the surfaces 6, 7, 8 and 9 depend of course on the refractive index of the material forming the reflector. In each individual case these angles can be determined by applying the known optical laws.

Die dargestellte Ausführungsform kann im Rahmen der Erfindung in ,mannigfaltiger Weise verändert werden. Insbesondere könnte die Neigung der Flächen 6 bis 9 so gewählt werden, daß die austretenden Lichtstrahlen nicht parallel zueinander, sondern konvergierend oder divergierend sind.The embodiment shown can be varied within the scope of the invention Way to be changed. In particular, the inclination of the surfaces 6 to 9 could be selected in this way that the emerging light rays are not parallel to each other, but converging or are divergent.

Claims (1)

PATENTANSPRUCH: Reflektor aus durchsichtigem Stoff für Vorwärts- und Rückwärtsausstrahlung der Lichtquelle, dessen als Reflektor für die Vorwärtsstrahlungwirkender Teil verspiegelt ist und dessen nichtverspiegelter Teil die Rückwärtsausstrahlung bewirkt, dadurch gekennzeichnet, daß der nichtverspiegelte, in Scheitelnähe liegende Reflektorteil lichtbrechende und/oder totalreflektierende Mittel hat, durch welche die ihn in rückwärtiger Richtung durchdringenden Lichtstrahlen parallel zur optischen Achse des Reflektors oder konvergierend oder divergierend gerichtet sind.PATENT CLAIM: reflector made of transparent fabric for forward and Backward emission of the light source, which acts as a reflector for the forward radiation Part is mirrored and its non-mirrored part is the back emission causes, characterized in that the non-mirrored, lying near the apex Reflector part has refractive and / or totally reflective means through which the light rays penetrating it in the rear direction parallel to the optical one Axis of the reflector or converging or diverging are directed.
DE1958P0021469 1957-10-07 1958-10-04 Transparent fabric reflector for forward and backward emission Expired DE1074527C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1074527X 1957-10-07

Publications (2)

Publication Number Publication Date
DE1074527B true DE1074527B (en) 1960-02-04
DE1074527C2 DE1074527C2 (en) 1963-10-10

Family

ID=598562

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1958P0021469 Expired DE1074527C2 (en) 1957-10-07 1958-10-04 Transparent fabric reflector for forward and backward emission

Country Status (1)

Country Link
DE (1) DE1074527C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1083262B (en) * 1977-05-10 1985-05-21 Fiat Spa REFLECTOR FOR LIGHTING AND OR SIGNALING DEVICE PARTICULARLY FOR VEHICLES

Also Published As

Publication number Publication date
DE1074527C2 (en) 1963-10-10

Similar Documents

Publication Publication Date Title
DE4115836C2 (en) Luminaire with a reflector arrangement and a dimming body
DE1074527B (en) Transparent fabric reflector for forward and backward emission
DE1198754B (en) Light distribution arrangement
DE450658C (en) Light signal
DE1873548U (en) LIGHTED TOY VEHICLE.
DE33177C (en)
DE466110C (en) Device for the screening of transparencies or slit markings by means of reflected scattered light from spotlights located to the side and behind the transparency
DE362136C (en) End lantern for bicycles, motorcycles, vehicles, etc. like
DE878914C (en) Stationary signal carrier for toy and model railway systems
DE521249C (en) Direction indicator with light reflector that can be swiveled out of the car
DE921075C (en) Luminaire used in the casing of vehicles
DE507123C (en) Illuminated advertising sign with indirect lighting and reflective back wall (daylight mirror advertising sign)
DE1101985B (en) Light for motor vehicles combined with a reflector
DE866482C (en) Lighting fixtures, in particular for decorative purposes
AT210014B (en) Light, in particular for street or train lighting
DE1985602U (en) GLOVE USED FOR DIRECTION INDICATION OR OTHER PROTECTION.
DE1850445U (en) ROAD CONTROL PILLAR.
DE506511C (en) Direction and stop indicators for motor vehicles
DE480641C (en) Device for daylight mirror advertising
DE524171C (en) Illuminated sign
DE835254C (en) Device for generating illuminated signs
DE947907C (en) Handle provided with a transparent protective cover, especially for switches on electrical devices
DE687445C (en)
AT157806B (en) Headlights.
DE485339C (en) Advertising light sign