DE283441C - - Google Patents

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Publication number
DE283441C
DE283441C DENDAT283441D DE283441DA DE283441C DE 283441 C DE283441 C DE 283441C DE NDAT283441 D DENDAT283441 D DE NDAT283441D DE 283441D A DE283441D A DE 283441DA DE 283441 C DE283441 C DE 283441C
Authority
DE
Germany
Prior art keywords
prism
light
longitudinal axis
screen
lamp
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
DENDAT283441D
Other languages
German (de)
Publication date
Application granted granted Critical
Publication of DE283441C publication Critical patent/DE283441C/de
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/02Refractors for light sources of prismatic shape
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D42/00Hand, pocket, or shaving mirrors
    • A45D42/08Shaving mirrors
    • A45D42/10Shaving mirrors illuminated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00Systems of electric lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00Electric lighting devices with self-contained electric batteries or cells
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

-■ ΛΙ 283441 KLASSE Ab. GRUPPE- ■ ΛΙ 283441 CLASS from. GROUP

Elektrische Taschenlampe. Patentiert im Deutschen Reiche vom 3. April 1913 ab.Electric flashlight. Patented in the German Empire on April 3, 1913.

Bei den elektrischen Taschenlampen allbekannter Form liegt die Achse des austretenden Lichtstrahlenbündels in der Längsachse des Lampengehäuses. War es für besondere Zwecke notwendig, die Strahlen senkrecht zur Längsachse der Lampe austreten zu lassen, so war eine entsprechend andere Lage der Glühlampe und des Reflektors notwendig, die zu Raum beanspruchenden KonstruktionenIn the case of electric flashlights of well-known shape, the axis of the exiting is located Light beam in the longitudinal axis of the lamp housing. Was it necessary for special purposes to keep the rays perpendicular to the To let the longitudinal axis of the lamp emerge, so was a correspondingly different position of the Incandescent lamp and reflector necessary to space-consuming constructions

ίο führte, so daß die erforderlichen Kennzeichen einer Taschenlampe, nämlich Handlichkeit und leichte Bergbarkeit, nicht mehr vorhanden waren. War die Forderung zu erfüllen, daß die Lichtstrahlen nach Bedarf in der Längsachse oder senkrecht dazu austreten sollten, so traten diese Mängel noch stärker hervor, und eine ganze Anzahl von Hilfsgliedern war notwendig, um Glühlampe und Reflektor aus einer Lage in eine andere zu bringen. Dieseίο led so that the required license plate a flashlight, namely handiness and easy recovery, no longer available was. Was the requirement to meet that the light rays as required in the longitudinal axis or should emerge perpendicular to it, these defects became even more pronounced, and quite a number of auxiliary links were necessary to get the bulb and reflector out to bring one situation into another. These

Übelstände werden nach der vorliegenden Erfindung dadurch vermieden, daß ein an sich bekanntes Prinzip, nämlich die totale Reflexion paralleler, in ein Prisma eindringender Lichtstrahlen zum Ablenken der letzteren verwendet wird.Defects are avoided according to the present invention that a per se well-known principle, namely the total reflection of parallel, penetrating into a prism Light rays are used to deflect the latter.

Das Austreten störender seitlicher Lichtstrahlen wird hierdurch vermieden; bei Anordnung eines Spiegels würde dies nur durch einen im Verhältnis zur Lampe großen Lichtkanal zu erreichen sein. Endlich dient das Prisma sowohl als Ablenkvorrichtung wie auch als Lichtzerstreuer.This avoids the emergence of disruptive lateral light beams; upon arrangement of a mirror, this would only be achieved through a light channel that is large in relation to the lamp to be reached. Finally the prism serves as both a deflector and a light diffuser.

An der Taschenlampenhülse c mit Glühlampe b (Fig. ι bis 3) wird ein Prisma a so angeordnet, daß es aus der Stellung der Fig. ι in die Stellung der Fig. 3 und umgekehrt gebracht werden kann. In Fig. 3 bleibt die mittlere Richtung der von b ausgehenden Lichtstrahlen in der Längsachse des Gehäuses parallel zur Pfeilrichtung k im wesentlichen bestehen. In Fig. 1 werden die von b parallel zur Längsachse gerichteten Strahlen absolut reflektiert und verlassen das Prisma parallel zur Pfeilrichtung i, treten also senkrecht zur ursprünglichen Richtung aus. Die schräg in das Prisma fallenden Lichtstrahlen stören die Wirkung nicht. Die aus der Hypothenusenfläche austretenden Strahlen können, wenn nötig, durch einen'Schirm I abgeblendet werden. A prism a is arranged on the flashlight sleeve c with incandescent lamp b (FIGS. 1 to 3) so that it can be moved from the position of FIG. 1 to the position of FIG. 3 and vice versa. In FIG. 3, the mean direction of the light rays emanating from b remains essentially unchanged in the longitudinal axis of the housing parallel to the direction of the arrow k. In FIG. 1, the rays directed from b parallel to the longitudinal axis are absolutely reflected and leave the prism parallel to the direction of the arrow i, that is to say exit perpendicular to the original direction. The light rays falling obliquely into the prism do not disturb the effect. The rays emerging from the surface of the hypotenuse can, if necessary, be blocked by a screen I.

Das Prisma α nach Fig. 4, 5 und 6 hat an seinen Stirnflächen Beläge f. Diese und das Prisma werden von Fassungen d umspannt. In den Belägen f sind Vertiefungen j> und h, in welche die Stifte g je nach der Prismenstellung durch die federnden Lappen 0 eingedrückt werden. Infolge der dreieckigen Ausschnitte e der Fassungen d, innerhalb derer sich die beiden Stifte g befinden, kann das Prisma vom Gehäuse nicht getrennt werden. Die Hohlräume -p, h und β können auch unmittelbar im Glasprisma angeordnet sein. Der Schirm / (Fig. 1, 2, 5 und 6) ist sowohl an das Prisma wie an die Zunge m mittels zweier Scharniere angelenkt. Die Zunge m gleitet in der Führung n. Der Schirm ist zwangläufig mit dem Prisma verbunden. Wird das Prisma in eine andere Stellung gebracht, so folgt auchThe prism α according to FIGS. 4, 5 and 6 has coverings f on its end faces. These and the prism are encompassed by mountings d. In the coverings f there are depressions j> and h, into which the pins g are pressed by the resilient tabs 0 depending on the position of the prism. As a result of the triangular cutouts e of the sockets d, within which the two pins g are located, the prism cannot be separated from the housing. The cavities -p, h and β can also be arranged directly in the glass prism. The screen / (Fig. 1, 2, 5 and 6) is articulated both to the prism and to the tongue m by means of two hinges. The tongue m slides in the guide n. The screen is inevitably connected to the prism. If the prism is brought into another position, it also follows

Claims (1)

der Schirm (siehe Fig. ι und 5 sowie Zwischenstellung Fig. 6).the screen (see Fig. ι and 5 and intermediate position Fig. 6). Paten τ-An Spruch:Godfather τ-An saying: Elektrische Taschenlampe, gekennzeichnet durch ein umschwenkbar vor der Lichtaustrittsöffnung gelagertes Glasprisma (α), welches in der einen Stellung (Fig. 1) die Lichtstrahlen senkrecht zur Lampenachse •total reflektiert, in der andern Stellung (Fig. 3) hingegen in der Richtung der Lampenachse zerteilt.Electric flashlight, characterized by a swivel in front of the light exit opening mounted glass prism (α), which in one position (Fig. 1) the Light rays perpendicular to the lamp axis • totally reflected, in the other position (Fig. 3), however, divided in the direction of the lamp axis. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT283441D Expired DE283441C (en)

Publications (1)

Publication Number Publication Date
DE283441C true DE283441C (en) 1900-01-01

Family

ID=539005

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT283441D Expired DE283441C (en)

Country Status (1)

Country Link
DE (1) DE283441C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850448A1 (en) * 2003-01-29 2004-07-30 Zedel Portable light source using electro-luminescent diodes, uses screen with integral Fresnel lenses which can be moved over front of diode to adjust spread of beam from diode
US9285105B2 (en) 2012-05-08 2016-03-15 Streamlight, Inc. Head light having a rotatable face cap with plural lenses
US11639789B2 (en) 2021-01-13 2023-05-02 Streamlight, Inc. Portable light and keyed rechargeable USB battery
USD999332S1 (en) 2018-10-09 2023-09-19 Streamlight, Inc. Rail mountable gun light with rotationally keyed mount assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850448A1 (en) * 2003-01-29 2004-07-30 Zedel Portable light source using electro-luminescent diodes, uses screen with integral Fresnel lenses which can be moved over front of diode to adjust spread of beam from diode
WO2004070268A3 (en) * 2003-01-29 2004-09-16 Zedel Portable lighting device with a light emitting diode
US7192165B2 (en) 2003-01-29 2007-03-20 Zedel Portable lighting device with light-emitting diode
US7226190B2 (en) 2003-01-29 2007-06-05 Zedel Portable lighting device with light-emitting diode
US9285105B2 (en) 2012-05-08 2016-03-15 Streamlight, Inc. Head light having a rotatable face cap with plural lenses
US9605836B2 (en) 2012-05-08 2017-03-28 Streamlight, Inc. Portable light having a housing including a lock
USD999332S1 (en) 2018-10-09 2023-09-19 Streamlight, Inc. Rail mountable gun light with rotationally keyed mount assembly
US11639789B2 (en) 2021-01-13 2023-05-02 Streamlight, Inc. Portable light and keyed rechargeable USB battery

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