EP2228586B1 - Torch - Google Patents
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- Publication number
- EP2228586B1 EP2228586B1 EP09003531A EP09003531A EP2228586B1 EP 2228586 B1 EP2228586 B1 EP 2228586B1 EP 09003531 A EP09003531 A EP 09003531A EP 09003531 A EP09003531 A EP 09003531A EP 2228586 B1 EP2228586 B1 EP 2228586B1
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- EP
- European Patent Office
- Prior art keywords
- electric current
- light
- electronic circuit
- circuit board
- contact
- 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.)
- Not-in-force
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Classifications
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- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
- F21L4/022—Pocket lamps
- F21L4/025—Pocket lamps the light sources being of different shape or type
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
- F21L4/022—Pocket lamps
- F21L4/027—Pocket lamps the light sources being a LED
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to a flashlight, comprising at least two light sources, wherein the at least two light sources comprise at least one light emitting diode and at least one device for connecting the at least two light emitting means with electric current, wherein the device for wiring with electric current, a printed circuit board having at least two contact surfaces wherein the at least two contact surfaces are frictionally connected to at least two contact springs and, by twisting the printed circuit board, connect the at least two contact springs differently with electrical current, and wherein the at least one device for connection comprises an electronic circuit which is connected between the at least one light source and at least one of the at least two contact springs is connected, wherein the at least two contact springs electrical current for signaling a logic state to the electronic circuit on conduct, wherein the electronic circuit, the at least two bulbs individually charged with continuous electric current or electric current pulses.
- Known flashlights in rod form usually have a rod-shaped battery housing for holding rod batteries, a screw cap on the bottom of the battery case and a removable reflector, in which a light source can be used.
- a slide switch is present, through which the flashlight can be switched on and off and in many versions, this switch has a position in which the flashlight briefly by light pressure the switch can be turned on.
- Newer flashlights have to increase the luminous efficacy on other bulbs, such as xenon high-pressure lamps, in which instead of a filament, a plasma of ionized noble gas is used as a light source. Still other flashlights have to further increase the luminous efficiency of light-emitting diodes, light emitting diodes having the disadvantage of monochromatic light, the unusual in illumination of an object for the human eye, thus weak, because it produces only in a color range contrasts. In order to avoid this disadvantage, it has gone over to equip flashlights with different LEDs, which light up in different, narrowband spectral ranges. To control these light-emitting diode modules, it is necessary to switch at least one current limit between the power source and light emitting diode.
- the current limit is usually made electronically and the necessary electronics are housed in a dedicated volume of the flashlight and usually switched on and off with a microswitch.
- a combination flashlight which has a first luminous side with a directed light beam and a second luminous side with a non-directional light source.
- the non-directional light source is intended for the diffuse illumination of the environment, whereas the directed light beam is intended for the selective illumination of an object.
- this flashlight after WO00 / 45086 form contact springs of the Circuit board switch part of a battery module, whereby a modular structure is achieved.
- Flashlights for the equipment of public service personnel, such as police, civil protection, fire brigade or security services, but also for the equipment of soldiers, are subject to particularly high demands in terms of durability, reliability, low maintenance and repair capability.
- Important besides adjusting the brightness and the flashlight light color is that the flashlights are insensitive to moisture, shock, frequent switching and intensive use with frequent on-off operations. These high requirements are usually not met by known flashlights.
- the object of the invention is therefore to provide a flashlight available, which meets the above-mentioned high requirements.
- the object of the invention is achieved in that in the input mentioned flashlight, the current pulses have a frequency of 20 Hz to 200 kHz, wherein the electronic circuit varies the pulse-pause ratio in dependence on the logic state. Further advantageous embodiments of the invention are specified in the subclaims.
- the flashlight according to the invention is characterized in that the circuit of the lamp, here light-emitting diodes, a printed circuit board is used, which is frictionally engaged with contact springs.
- This circuit board connects the contact springs at different rotational positions with a different electrical Current pattern.
- this printed circuit board is particularly easy to replace as a switch assembly. Especially in equipments of large crews with the same type of flashlight, this interchangeability of the frequently used in frequent use switch allows high reliability and easy repair, which reduces the overall cost of maintaining large amounts of identical flashlights.
- the contact springs are part of a battery module, which is inserted into the rod-shaped housing of the flashlight. To connect the bulbs, the contact springs are rotated as a replaceable part of the battery module with respect to an easily replaceable printed circuit board.
- the at least one device for wiring comprises an electronic circuit which is connected between the at least one lamp and at least one of the at least two contact springs, wherein the at least one contact spring electrical current for signaling a logic state to the electronic circuit forwards.
- the electronic circuit depending on the signaled logic state, the at least one lamp with continuous electrical current or electrical current pulses connected.
- the wiring with continuous electric current wherein the continuous electric current is limited by the electronic circuit leads to Maximum power and thus the highest brightness level of the so-called light-emitting diodes.
- the light-emitting diodes are charged with current pulses, wherein the current pulses are supplied to the LED at such a high frequency that the human eye does not perceive the light pulses generated by the current pulses as a flashing light.
- the frequency is thus higher than about 20 Hz and can be up to 200 kHz. Even higher frequencies are conceivable, but then measures must be taken that the flashlight emits no disturbing the radio traffic signals, which would unnecessarily increase the price of the flashlight.
- the pulse-pause ratio by which the average light output of the thus controlled light emitting diode is set.
- the switched-on state that is to say the state in which the current pulse is applied to the luminous means accounts for 10% -15% of the total time
- a brightness reduction can be achieved which is essentially proportional to the quotient of the current pulse and the sum of the current pulse and Pause duration of a switching cycle is.
- deviations arise from the characteristic curve of the sensitivity of the human eye at different brightnesses, not pure rectangular current pulses, with which the light sources are controlled, and by component-specific parameters.
- the electronic circuit In order to vary the relative brightness of different, inserted bulbs, it is provided that if at least two used bulbs are present, the electronic circuit, the at least two bulbs individually charged with continuous electric current or electric current pulses. As a result, the different lamps can be matched in their characteristic to each other.
- the variation of the relative brightness of different bulbs in addition to the adjustment of the characteristic has the advantage that the color of the flashlight luminous color can be adjusted.
- an infrared-sensitive camera helps illuminate the scene, on the other hand, a small amount of visible light can be added to provide light to see to the human eye. Whether the light sources are switched alternately or not mutually but with different pulse-pause ratio, depends on the desired application.
- Another operating state is the flashing state in which the flashlight flashes alternately, either with one color or with more than one color. If a frequency in the upper frequency range is used for the human eye, and a flashing alternately with more than one color is selected, with the flashlight, for example, in the back and forth or by generating a circular signal by panning in the circle a multicolored circle or arc be generated. These signals can be used as widely visible and differentiable emergency or information signals. When using a flashing signal with only one color, a Morse code can also be given according to the Morse alphabet.
- a SOS signal is generated as a fixed operating program, that is indicated by the blinking sequence short-short-short-long-long-long-short-short-short, with "short” for a short pulse and "Lang” stands for a long Impls.
- flashing signals is when a letter after the Morse alphabet in a first color, one on it the next letter is sent out in a second color, because this enables the recipient to distinguish between different consecutive letters more easily.
- a flashlight 1 according to the invention is shown, comprising a lower battery case 2 with molded on the surface tread grooves 3 for better tangibility of the flashlight 1.
- a battery module 3 is provided for receiving batteries 4 and at its to a reflector assembly. 5 facing side having a spring contact arrangement 6, wherein the individual spring contacts 7 are in electrical contact with the batteries 4 and are movable in the longitudinal direction of the battery module 3 against a spring force.
- the spring contacts 7 are in the mounted state of the flashlight 1 in frictional engagement with a printed circuit board 8, which is part of a light assembly 9, in which a control electronics 10 is present, the yes after wiring pattern of their electrical inputs and outputs, the bulbs in the light assembly. 9 differently charged with electric current.
- the battery module 3 is used for mounting along in the lower battery case 2, however, the lamp assembly 9 is inserted into the reflector 5, wherein means not shown here ensure that the battery module 3 rotatably seated in the battery case 2 and that the lamp assembly 9 rotatably seated in the reflector assembly 5.
- the units of lamp assembly 9 and reflector assembly 5 on one side and the arrangement of battery module 3 and battery case 2 are screwed together via a thread 11 with each other.
- the entire pocket light according to the invention is minimally opened and closed when switching.
- the above-mentioned circuit board 8 will be in the next FIG. 2 shown in more detail.
- FIG. 2 is a plan view of the circuit board 8 is shown, which has a central contact surface V +, which does not lose their electrical contact upon rotation of the circuit board 8 against the contact springs 7, because it lies in the fulcrum.
- a second contact surface G is designed as a concentric arc around the central contact surface V +.
- An outermost also concentric with the central contact surface V + contact surface B1 spans the same angle, but this contact surface B1 is much larger than the contact surface G due to their outer layer.
- FIG. 3 a block diagram is shown, wherein the block diagram comprises a first module 20, which consists essentially of the electronics from the integrated circuit ICs and the microcontroller IC3 of the lamp assembly 9 and comprises a second module 21, which consists of a part of the battery module 3 and the circuit board in the lamp assembly 8.
- a function of the electronics in the lighting arrangement 8 is activated by setting a wiring pattern of different inputs and outputs of the electronics in the lighting arrangement 8.
- the electronics in the light assembly 8 limits the electrical current flowing through the at least one light emitting diode and connects the at least one continuous current or current pulse LED, the frequency being less than about 20 Hz when it is desired to have a flashing light through the current pulses and over about 20 Hz when the total current brightness is to be reduced by the current pulses.
- the frequency about 20 Hz is the cutoff frequency at which a human eye can no longer distinguish a flashing from a lower average brightness.
- the two frequencies are superimposed, that is to say a frequency below 20 Hz and a frequency clearly above 20 Hz, when flashing with reduced brightness is desired.
- circuit board 8 he lamp assembly 8 and the contact springs 7 is in FIG. 4 explained in more detail.
- FIG. 4 is a block diagram showing only one LED LED2 shown, with a button SW 1 is provided when the LED is to light up only briefly on request.
- LED LED2 battery U1 and button SW1 are all connected together with a pole to contact G of the circuit board via a contact spring 7.
- the reflector assembly 5 is rotated so far that the contact surface G of the circuit board 8 is in contact with none of the contact springs 7. In all other positions, the flashlight is connected to electrical current flowing through the central contact surface V + and the contact surface G in the electronics.
- the outer contact surface B of the circuit board 8 connects the positive pole of the light-emitting diodes, wherein this contact in synchronism with the wiring through the contact G is running.
- the contact surfaces in FIG. 2 show three combinations, G2 and A2, A2, and the combination G1 and A1. These three combinations lead to the connection in stand-by mode (activation of the LED by a push-button), continuous mode wiring with continuous current and wiring with a pulsed current.
- the replaceable lamp assembly 8 has its own circuit board 8, through which the electronics are supplied by two tracks with electric current, and three pure, through which a certain current pattern on the three inputs A, G and B. can be given to select different modes he flashlight, such as continuous-on, flashing light, SOS signal, different colored flashing signal of different frequency and one or more states with darkened brightness of the bulbs.
Abstract
Description
Die Erfindung betrifft eine Taschenleuchte, aufweisend mindestens zwei Leuchtmittel, wobei die mindestens zwei Leuchtmittel mindestens eine Leuchtdiode umfassen und mindestens eine Vorrichtung zur Beschaltung des der mindestens zwei Leuchtmittels mit elektrischem Strom, wobei die Vorrichtung zur Beschaltung mit elektrischem Strom eine gedruckte Leiterplatte mit mindestens zwei Kontaktflächen aufweist, wobei die mindestens zwei Kontaktflächen mit mindestens zwei Kontaktfedern reibschlüssig verbunden sind, und durch Verdrehung der gedruckten Leiterplatte die mindestens zwei Kontaktfedern unterschiedlich mit elektrischem Strom beschalten, und wobei die mindestens eine Vorrichtung zur Beschaltung eine elektronische Schaltung umfasst, die zwischen das mindestens eine Leuchtmittel und mindestens einer der mindestens zwei Kontaktfedern geschaltet ist, wobei die mindestens zwei Kontaktfedern elektrischen Strom zur Signalisierung eines logischen Zustands an die elektronische Schaltung weiterleiten, wobei die elektronische Schaltung die mindestens zwei Leuchtmittel individuell mit kontinuierlichem elektrischem Strom oder mit elektrischen Strompulsen beschickt.The invention relates to a flashlight, comprising at least two light sources, wherein the at least two light sources comprise at least one light emitting diode and at least one device for connecting the at least two light emitting means with electric current, wherein the device for wiring with electric current, a printed circuit board having at least two contact surfaces wherein the at least two contact surfaces are frictionally connected to at least two contact springs and, by twisting the printed circuit board, connect the at least two contact springs differently with electrical current, and wherein the at least one device for connection comprises an electronic circuit which is connected between the at least one light source and at least one of the at least two contact springs is connected, wherein the at least two contact springs electrical current for signaling a logic state to the electronic circuit on conduct, wherein the electronic circuit, the at least two bulbs individually charged with continuous electric current or electric current pulses.
Bekannte Taschenleuchten in Stabform weisen in der Regel ein stabförmiges Batteriegehäuse zur Aufnahme von Stabbatterien auf, einen Schraubverschluss am Boden des Batteriegehäusen und einen abnehmbaren Reflektor, in den ein Leuchtmittel einsetzbar ist. Zur Beschaltung des Leuchtmittels mit elektrischem Strom ist auf dem Körper des Batteriegehäuses in der Regel ein Schiebeschalter vorhanden, über welchen die Taschenleuchte ein- und ausgeschaltet werden kann und in vielen Ausführungen weist dieser Schalter eine Position auf, in welcher die Taschenlampe kurzzeitig durch leichten Druck auf den Schalter eingeschaltet werden kann. Diese so aufgebauten Taschenleuchten erfüllen ihren Zweck für die meisten Anwendungen in zufriedenstellender Weise. Ältere Taschenleuchten weisen als Leuchtmittel batteriebetriebene Lampen mit einer Glühwendel auf, wobei die Glühwendel empfindlich gegenüber Schlag oder Erschütterung reagiert, in welcher die Wendel im hoch erhitzten Zustand bei Erschütterung reißt. Neuere Taschenleuchten weisen zur Erhöhung der Lichtausbeute andere Leuchtmittel auf, wie beispielsweise Xenon-Hochdruck-Lampen, in welchen statt eines Glühfadens ein Plasma aus ionisiertem Edelgas als Lichtquelle eingesetzt wird. Noch andere Taschenleuchten weisen zur weiteren Erhöhung der Lichtausbeute Leuchtdioden auf, wobei Leuchtdioden den Nachteil von monochromatischem Licht aufweisen, das bei Ausleuchtung eines Gegenstands für das menschliche Auge ungewohnte, mithin schwache, weil nur in einem Farbbereich vorhandene Kontraste erzeugt. Um diesen Nachteil zu umgehen, ist man dazu übergegangen, Taschenleuchten mit unterschiedlichen Leuchtdioden auszustatten, die in unterschiedlichen, schmalbandigen Spektralbereichen leuchten. Zur Ansteuerung dieser Leuchtdioden-Module ist es notwendig, mindestens eine Strombegrenzung zwischen Stromquelle und Leuchtdiode zu schalten. Da die unterschiedlichen Leuchtdioden-Typen unterschiedlich hell leuchten, ist es auch notwendig, den Strom der unterschiedlichen Leuchtdioden anzupassen, um ein annehmbar weiß erscheinendes und kontraststarkes Licht zu erzeugen. Die Strombegrenzung wird in der Regel elektronisch vorgenommen und die dafür notwendige Elektronik wird in einem dafür vorgesehenen Volumen der Taschenleuchte untergebracht und in der Regel mit einem Mikroschalter ein- und ausgeschaltet.Known flashlights in rod form usually have a rod-shaped battery housing for holding rod batteries, a screw cap on the bottom of the battery case and a removable reflector, in which a light source can be used. For wiring the lamp with electric current on the body of the battery case usually a slide switch is present, through which the flashlight can be switched on and off and in many versions, this switch has a position in which the flashlight briefly by light pressure the switch can be turned on. These flashlights constructed in this way fulfill their purpose satisfactorily for most applications. Older flashlights have battery-powered lamps with an incandescent filament as the light source, the incandescent coil being sensitive to shock or vibration in which the coil breaks in the highly heated state upon vibration. Newer flashlights have to increase the luminous efficacy on other bulbs, such as xenon high-pressure lamps, in which instead of a filament, a plasma of ionized noble gas is used as a light source. Still other flashlights have to further increase the luminous efficiency of light-emitting diodes, light emitting diodes having the disadvantage of monochromatic light, the unusual in illumination of an object for the human eye, thus weak, because it produces only in a color range contrasts. In order to avoid this disadvantage, it has gone over to equip flashlights with different LEDs, which light up in different, narrowband spectral ranges. To control these light-emitting diode modules, it is necessary to switch at least one current limit between the power source and light emitting diode. Since the different types of light emitting diodes light up to a different brightness, it is also necessary to adjust the current of the different light emitting diodes to produce a reasonably white and high contrast light. The current limit is usually made electronically and the necessary electronics are housed in a dedicated volume of the flashlight and usually switched on and off with a microswitch.
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An Taschenleuchten zur Ausrüstung von Einsatzpersonal im öffentlichen Dienst, wie Polizei, Katastrophenschutz, Feuerwehr oder Sicherheitsdiensten aber auch zur Ausrüstung von Soldaten werden besonders hohe Anforderungen in Bezug auf Haltbarkeit, Verlässlichkeit, Wartungsarmut und Reparaturfähigkeit gestellt. Wichtig neben der Einstellung der Helligkeit und der Taschenlampenlichtfarbe ist, dass die Taschenleuchten unempfindlich sind gegenüber Nässe, Schlag, häufiges Schalten und intensive Nutzung mit häufigen Ein-Ausschaltvorgängen. Diese hohen Anforderungen werden in der Regel von bekannten Taschenleuchten nicht erfüllt.Flashlights for the equipment of public service personnel, such as police, civil protection, fire brigade or security services, but also for the equipment of soldiers, are subject to particularly high demands in terms of durability, reliability, low maintenance and repair capability. Important besides adjusting the brightness and the flashlight light color is that the flashlights are insensitive to moisture, shock, frequent switching and intensive use with frequent on-off operations. These high requirements are usually not met by known flashlights.
Aufgabe der Erfindung ist es deshalb, eine Taschenleuchte zur Verfügung zu stellen, welche die oben genannten hohen Anforderungen erfüllt.The object of the invention is therefore to provide a flashlight available, which meets the above-mentioned high requirements.
Die erfindungsgemäße Aufgabe wird dadurch gelöst, dass in der Eingangs erwähnten Taschenlampe die Strompulse eine Frequenz von 20 Hz bis 200 kHz aufweisen, wobei die elektronische Schaltung das Puls-Pause-Verhältnis in Abhängigkeit vom logischen Zustand variiert. Weiter vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object of the invention is achieved in that in the input mentioned flashlight, the current pulses have a frequency of 20 Hz to 200 kHz, wherein the electronic circuit varies the pulse-pause ratio in dependence on the logic state. Further advantageous embodiments of the invention are specified in the subclaims.
Die erfindungsgemäße Taschenleuchte zeichnet sich dadurch aus, dass zur Beschaltung des Leuchtmittels, hier Leuchtdioden, eine bedruckte Leiterplatte verwendet wird, die mit Kontaktfedern in reibschlüssiger Verbindung steht. Diese Leiterplatte beschaltet die Kontaktfedern bei unterschiedlichen Drehstellungen mit einem unterschiedlichen elektrischen Strommuster. Besonders an dieser Schaltungsanordnung ist, dass diese gedruckte Leiterplatte als Schalteranordnung besonders leicht auswechselbar ist. Gerade bei Ausrüstungen von großen Mannschaften mit dem gleichen Taschenleuchten-Typ ermöglicht diese Auswechselbarkeit des im häufigen Einsatz leicht verschleißenden Schalters eine hohe Zuverlässigkeit und einfache Reparaturmöglichkeit, was die Gesamtkosten zum Unterhalt großer Mengen identischer Taschenleuchten verringert. Würde hingegen ein elektronischer Mikroschalter eingesetzt, um die Elektronik für die Stromversorgung der Leuchtdioden ein- und wieder auszuschalten, wäre es mit hin notwendig, im Reparaturfall den Mikroschalter auszuwechseln, der in der Regel fest mit dem Batteriegehäuse verbunden oder darin eingelassen ist.The flashlight according to the invention is characterized in that the circuit of the lamp, here light-emitting diodes, a printed circuit board is used, which is frictionally engaged with contact springs. This circuit board connects the contact springs at different rotational positions with a different electrical Current pattern. A particular feature of this circuit arrangement is that this printed circuit board is particularly easy to replace as a switch assembly. Especially in equipments of large crews with the same type of flashlight, this interchangeability of the frequently used in frequent use switch allows high reliability and easy repair, which reduces the overall cost of maintaining large amounts of identical flashlights. If, on the other hand, an electronic microswitch were used to switch on and off the electronics for the power supply of the light emitting diodes, it would be necessary to replace the microswitch in the event of repair, which is usually firmly connected to the battery housing or embedded therein.
In Ausgestaltung der Erfindung ist vorgesehen, dass die Kontaktfedern Teil eines Batteriemoduls sind, das in das stabförmige Gehäuse der Taschenleuchte eingeschoben wird. Zur Beschaltung der Leuchtmittel werden die Kontaktfedern als auswechselbarer Teil des Batteriemoduls gegenüber eine leicht auswechselbaren bedruckte Leiterplatte verdreht.In an embodiment of the invention it is provided that the contact springs are part of a battery module, which is inserted into the rod-shaped housing of the flashlight. To connect the bulbs, the contact springs are rotated as a replaceable part of the battery module with respect to an easily replaceable printed circuit board.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die mindestens eine Vorrichtung zur Beschaltung eine elektronische Schaltung umfasst, die zwischen das mindestens eine Leuchtmittel und mindestens eines der mindestens zwei Kontaktfedern geschaltet ist, wobei die mindestens eine Kontaktfeder elektrischen Strom zur Signalisierung eines logischen Zustands an die elektronische Schaltung weiterleitet. Je nach Stellung der Kontaktflächen auf der gedruckten Leiterbahn ergeben sich so verschiedene Schaltmuster, die von der Ansteuerelektronik für die als Leuchtmittel eingesetzten Leuchtdioden ausgewertet werden und in Abhängigkeit davon die Leuchtdioden entsprechend beschaltet. Dabei beschaltet die elektronische Schaltung in Abhängigkeit vom signalisierten logischen Zustand das mindestens eine Leuchtmittel mit kontinuierlichem elektrischem Strom oder mit elektrischen Strompulsen. Die Beschaltung mit kontinuierlichem elektrischen Strom, wobei der kontinuierliche elektrische Strom durch die elektronische Schaltung begrenzt wird, führt zur Maximalleistung und damit zur höchsten Helligkeitsstufe der so angesteuerten Leuchtdioden.In a further embodiment of the invention it is provided that the at least one device for wiring comprises an electronic circuit which is connected between the at least one lamp and at least one of the at least two contact springs, wherein the at least one contact spring electrical current for signaling a logic state to the electronic circuit forwards. Depending on the position of the contact surfaces on the printed conductor so different switching patterns, which are evaluated by the control electronics for the light-emitting diodes used as a light source and depending on the LEDs connected accordingly. In this case, the electronic circuit, depending on the signaled logic state, the at least one lamp with continuous electrical current or electrical current pulses connected. The wiring with continuous electric current, wherein the continuous electric current is limited by the electronic circuit leads to Maximum power and thus the highest brightness level of the so-called light-emitting diodes.
Um die Helligkeit der Taschenleuchte zu reduzieren, ist vorgesehen, dass die Leuchtdioden mit Strompulsen beschickt werden, wobei die Strompulse mit einer derart hohen Frequenz der Leuchtdiode zugeleitet werden, dass das menschliche Auge die durch die Strompulse erzeugten Lichtpulse nicht als Blinklicht wahrnimmt. Die Frequenz ist somit höher als etwa 20 Hz und kann bis zu 200 kHz betragen. Auch sind noch höhere Frequenzen denkbar, dann allerdings müssen Maßnahmen getroffen werden, dass die Taschenleuchte keine den Funkverkehr störende Signale aussendet, was die Taschenleuchte unnötig verteuern würde. Zur Einstellung der Helligkeit ist aber nicht die Frequenz maßgeblich, sondern das Puls-Pause-Verhältnis, durch welche die mittlere Lichtleistung der so angesteuerten Leuchtdiode eingestellt wird. Wenn im Mittel der eingeschaltete Zustand, also der Zustand, in dem der Strompuls am Leuchtmittel anliegt, 10% - 15%, der Gesamtzeit ausmacht, dann kann so eine Helligkeitsreduktion erzielt werden, die im Wesentlichen proportional zum Quotienten aus Strompuls und Summe aus Strompuls und Pausendauer eines Schaltzyklus ist. Es ist aber möglich, dass Abweichungen auftreten. Diese Abweichungen entstehen aus der Kennlinie der Empfindlichkeit des menschlichen Auges bei verschiedenen Helligkeiten, nicht reinen rechteckigen Stromimpulsen, mit denen die Leuchtmittel angesteuert werden und von komponentenspezifischen Parametern.To reduce the brightness of the flashlight, it is provided that the light-emitting diodes are charged with current pulses, wherein the current pulses are supplied to the LED at such a high frequency that the human eye does not perceive the light pulses generated by the current pulses as a flashing light. The frequency is thus higher than about 20 Hz and can be up to 200 kHz. Even higher frequencies are conceivable, but then measures must be taken that the flashlight emits no disturbing the radio traffic signals, which would unnecessarily increase the price of the flashlight. To adjust the brightness but not the frequency is decisive, but the pulse-pause ratio, by which the average light output of the thus controlled light emitting diode is set. If, on average, the switched-on state, that is to say the state in which the current pulse is applied to the luminous means accounts for 10% -15% of the total time, then a brightness reduction can be achieved which is essentially proportional to the quotient of the current pulse and the sum of the current pulse and Pause duration of a switching cycle is. But it is possible that deviations occur. These deviations arise from the characteristic curve of the sensitivity of the human eye at different brightnesses, not pure rectangular current pulses, with which the light sources are controlled, and by component-specific parameters.
Um die relative Helligkeit verschiedener, eingesetzter Leuchtmittel zu variieren, ist vorgesehen, dass sofern mindestens zwei eingesetzte Leuchtmittel vorhanden sind, die elektronische Schaltung die mindestens zwei Leuchtmittel individuell mit kontinuierlichem elektrischem Strom oder mit elektrischen Strompulsen beschickt. Dadurch können die verschiedenen Leuchtmittel in ihrer Kennlinie aneinander angepasst werden. Die Variation der relativen Helligkeit verschiedener Leuchtmittel hat neben der Anpassung der Kennlinie den Vorteil, dass die Leuchtfarbe der Taschenleuchte angepasst werden kann.In order to vary the relative brightness of different, inserted bulbs, it is provided that if at least two used bulbs are present, the electronic circuit, the at least two bulbs individually charged with continuous electric current or electric current pulses. As a result, the different lamps can be matched in their characteristic to each other. The variation of the relative brightness of different bulbs in addition to the adjustment of the characteristic has the advantage that the color of the flashlight luminous color can be adjusted.
Neben einem Betrieb mit weißer, roter, blauer, grüner und gelber Farbe ist auch ein Betrieb mit ultraviolettem Licht oder mit Infrarotlicht möglich. Hierzu hat es sich als vorteilhaft erwiesen, wenn beispielsweise im Kombinationsbetrieb mit ultraviolettem Licht, die Leuchtmittel für das ultraviolette Licht nicht gleichzeitig mit dem sichtbaren Licht gemeinsam leuchten. Beispielsweise bei der Inspektion von Tatorten unter ultraviolettem Licht zur Sichtbarmachung von Spuren ist es vorteilhaft, wenn neben dem ultraviolettem Licht auch noch sichtbares Licht scheint, aber die beiden Lichtquellen zu unterschiedlichen, wenn auch für das Auge unmerklich kurzen Zeiten leuchten, um gegebenenfalls Fluoreszenzmarker nicht durch sichtbares Licht zu stören. Im Kombinationsbetrieb mit infrarotem Licht hilft die wechselseitige Einschaltung der Leuchtmittel, einerseits einer infrarotempfindlichen Kamera die Szene auszuleuchten, auf der anderen Seite kann ein geringer Anteil sichtbaren Lichtes hinzugemischt werden, um dem menschlichen Auge Licht zum sehen zur Verfügung zu stellen. Ob die Lichtquellen wechselseitig oder nicht wechselseitig aber mit unterschiedlichem Puls-Pause-Verhältnis geschaltet werden, hängt vom gewünschten Anwendungsfall ab.In addition to operating in white, red, blue, green and yellow colors, operation with ultraviolet light or infrared light is also possible. For this purpose, it has proven to be advantageous if, for example, in combination operation with ultraviolet light, the bulbs for the ultraviolet light do not shine together with the visible light at the same time. For example, in the inspection of crime scenes under ultraviolet light for visualization of tracks, it is advantageous if in addition to the ultraviolet light also visible light shines, but the two light sources shine at different, albeit imperceptibly short, times, if necessary, to fluorescence marker not through to disturb visible light. In combination operation with infrared light, the mutual switching of the lamps, on the one hand an infrared-sensitive camera helps illuminate the scene, on the other hand, a small amount of visible light can be added to provide light to see to the human eye. Whether the light sources are switched alternately or not mutually but with different pulse-pause ratio, depends on the desired application.
Ein weiterer Betriebszustand ist der Blinkzustand, in die Taschenleuchte entweder bei einer Farbe oder mit mehr als einer Farbe wechselseitig blinkt. Sofern eine Frequenz im oberen Frequenzbereich für das menschliche Auge eingesetzt wird, und ein wechselseitiges Blinken mit mehr als einer Farbe gewählt wird, kann mit der Taschenleuchte beispielsweise beim hin- und herwedeln oder bei Erzeugung eines kreisförmigen Signals durch Schwenken im Kreis ein mehrfarbiger Kreis oder Bogen erzeugt werden. Diese Signale können als weit sichtbare und differenzierbare Not- oder Informationssignale verwendet werden. Bei Verwendung eines Blinksignals mit nur einer Farbe kann auch ein Morse-Zeichen nach dem Morse-Alphabet abgegeben werden. So hat es sich als vorteilhaft erwiesen, wenn als festes Betriebsprogramm ein S-O-S-Signal erzeugt wird, dass sich durch die Blinkfolge Kurz-Kurz-Kurz-Lang-Lang-Lang-Kurz-Kurz-Kurz, wobei "Kurz" für einen kurzen Impuls und "Lang" für einen langen Impls steht. Noch eine Möglichkeit des Einsatzes von Blinksignalen ist es, wenn ein Buchstabe nach dem Morse-Alphabet in einer ersten Farbe, ein darauf folgender Buchstabe in einer zweiten Farbe ausgesendet wird, denn dadurch hat der Empfänger die Möglichkeit, verschiedene, aufeinander folgende Buchstaben leichter von einander zu unterscheiden.Another operating state is the flashing state in which the flashlight flashes alternately, either with one color or with more than one color. If a frequency in the upper frequency range is used for the human eye, and a flashing alternately with more than one color is selected, with the flashlight, for example, in the back and forth or by generating a circular signal by panning in the circle a multicolored circle or arc be generated. These signals can be used as widely visible and differentiable emergency or information signals. When using a flashing signal with only one color, a Morse code can also be given according to the Morse alphabet. Thus, it has proved to be advantageous if a SOS signal is generated as a fixed operating program, that is indicated by the blinking sequence short-short-short-long-long-long-short-short-short, with "short" for a short pulse and "Lang" stands for a long Impls. Another possibility of using flashing signals is when a letter after the Morse alphabet in a first color, one on it the next letter is sent out in a second color, because this enables the recipient to distinguish between different consecutive letters more easily.
Die Erfindung wird anhand der folgenden Figuren näher erläutert. Es zeigt:
- Fig. 1
- eine erfindungsgemäße Tachenleuchte in einer Explosionsdarstellung,
- Fig. 2
- eine in die erfindungsgemäße Leuchte einsetzbare bedruckte Leiterplatte als Schaltelement,
- Fig. 3
- ein Blockschaltbild der Ansteuerelektronik der erfindungsgemäßen Taschenleuchte,
- Fig. 4
- ein detaillierteres Blockschaltbild der erfindungsgemäßen Taschenleuchte.
- Fig. 1
- a Tachenleuchte invention in an exploded view,
- Fig. 2
- a usable in the lamp according to the invention printed circuit board as a switching element,
- Fig. 3
- a block diagram of the control electronics of the flashlight according to the invention,
- Fig. 4
- a more detailed block diagram of the flashlight invention.
In
In
Zwischen der bogenförmigen Kontaktfläche B1 am äußeren Ende und der inneren Kontaktfläche G im inneren der kreisförmigen Leiterplatte 8 befinden sich zwei konzentrische, bogenförmige Spuren, die als in der Spur unterbrochene Kontaktflächen ausgebildet sind und dazu verwendet werden, beim Verdrehen der Reflektoranordnung 5 in verschiedene Stellungen ein unterschiedliches Beschaltungsmuster der Kontaktfedern 7, die mit den Leiterplatte 8 in reibschlüssiger und damit elektrisch leitender Verbindung stehen, zu erzeugen. Die Wirkung dieser unterschiedlichen Beschaltung wird anhand der folgenden Figuren erläutert, in denen Blockschaltbilder der in der Leuchtmittelanordnung 8 untergebrachten Elektronik dargestellt sind.Between the arcuate contact surface B1 at the outer end and the inner contact surface G in the
In
Die Zusammenwirkung der Leiterplatte 8 er Leuchtmittelanordnung 8 und der Kontaktfedern 7 wird in
In
In Besonderer Ausgestaltung der Erfindung ist vorgesehen, dass die austauschbare Leuchtmittelanordnung 8 seine eigene Leiterplatte 8 aufweist, durch welche die Elektronik durch zwei Spuren mit elektrischem Strom versorgt wird, und drei puren, durch welche ein bestimmtes Strommuster auf die drei Eingänge A, G und B gegeben werden kann, um verschiedene Modi er Taschenleuchte auszuwählen, wie dauer-Ein, Blinklicht, S-O-S-Signal, verschiedenfarbiges Blinksignal verschiedener Frequenz und ein oder mehrere Zustände mit abgedunkelter Helligkeit der Leuchtmittel.In a particular embodiment of the invention, it is provided that the
- 11
- Taschenleuchtetorch
- 22
- Batteriegehäusebattery case
- 33
- Batteriemodulbattery module
- 44
- Batteriebattery
- 55
- ReflektoranordnngReflektoranordnng
- 66
- FederkontaktanordnungSpring contact assembly
- 77
- Kontaktfederncontact springs
- 88th
- Leiterplattecircuit board
- 99
- LeuchtmittelanordnungLamp positioning
- 1010
- Ansteuerelektronikcontrol electronics
- 1111
- Gewindethread
- V+V +
- Kontaktflächecontact area
- GG
- Kontaktflächecontact area
- BB
- Kontaktflächecontact area
- A1A1
- Kontaktflächecontact area
- A2A2
- Kontaktflächecontact area
- G1G1
- Kontaktflächecontact area
- G2G2
- Kontaktflächecontact area
- B1B1
- Kontaktflächecontact area
- B2B2
- Kontaktflächecontact area
- AA
- KontaktspurContact track
- BB
- KontaktspurContact track
- GG
- KontaktspurContact track
Claims (7)
- Torch (1), having:- at least two illuminants (9), wherein the at least two illuminants (9) comprise at least one light-emitting diode; and- at least one device for connecting the at least two illuminants (9) to electric current, wherein the device (10) for providing the connection to electric current has a printed circuit board (8) with at least two contact surfaces (V+, A1, A2, G1, G2, B1), wherein the at least two contact surfaces (V+, A1, A2, G1, G2, B1) are connected, with frictional engagement, to at least two contact springs (7) and connect the at least two contact springs (7) to electric current in different ways by the twisting of the printed circuit board (8); and wherein
the at least one device (10) for providing connection comprises an electronic circuit which is connected between the at least one illuminant (9) and at least one of the at least two contact springs (7), wherein the at least two contact springs (7) pass on electric current for signalling a logic state to the electronic circuit (10);
wherein the electronic circuit (10) feeds the at least two illuminants (9) individually with continuous electric current or with electric current pulses;
characterised in that
the current pulses have a frequency of 20 Hz to 200 kHz, the electronic circuit (10) varying the pulse/pause ratio in dependence upon the logic state. - Torch according to claim 1,
characterised in that
the contact surfaces (V+, A1, A2, G1, G2, B1) are part of a battery module (3). - Torch according to one of claims 1 or 2,
characterised in that
the electronic circuit (10) connects the at least one illuminant (9) to continuous electric current or to electric current pulses in dependence upon the logic state signalled. - Torch according to one of claims 1 to 3,
characterised in that
the electronic circuit additionally generates a flashing light in the rhythm of a morse-code signal, preferably in the rhythm of an SOS morse-code signal. - Torch according to one of claims 1 to 4,
characterised in that
the electronic circuit feeds the at least two illuminants (9) with current pulses at different times. - Torch according to claims 1 to 5,
characterised in that
the at least two illuminants (9) emit light with a different spectral composition, the latter being a combination of different colours of visible light, a combination of visible light and ultraviolet light, or a combination of infrared light and visible light. - Torch according to one of claims 1 to 6,
characterised in that
the printed circuit board (8) and the at least one illuminant (9) are integrated in the form of a module and can be inserted in an unscrewable reflector (5), means for the torsion-proof connection of the printed circuit board to the reflector being present, which twist the module in relation to the contact springs (7) when the reflector (5) is twisted while in the mounted state.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT09003531T ATE528577T1 (en) | 2009-03-11 | 2009-03-11 | FLASHLIGHT |
EP09003531A EP2228586B1 (en) | 2009-03-11 | 2009-03-11 | Torch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09003531A EP2228586B1 (en) | 2009-03-11 | 2009-03-11 | Torch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2228586A1 EP2228586A1 (en) | 2010-09-15 |
EP2228586B1 true EP2228586B1 (en) | 2011-10-12 |
Family
ID=40886789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09003531A Not-in-force EP2228586B1 (en) | 2009-03-11 | 2009-03-11 | Torch |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2228586B1 (en) |
AT (1) | ATE528577T1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6022127A (en) * | 1998-07-11 | 2000-02-08 | Krietzman; Mark Howard | Multi-function switching head for use with handheld illumination devices |
WO2000045086A1 (en) * | 1999-01-29 | 2000-08-03 | Nordic Technologies, Inc. | Combination flashlight device with spot light and area light |
US7241025B2 (en) * | 2005-01-24 | 2007-07-10 | Surefire, Llc | Switch actuated flashlight with current limiter |
-
2009
- 2009-03-11 EP EP09003531A patent/EP2228586B1/en not_active Not-in-force
- 2009-03-11 AT AT09003531T patent/ATE528577T1/en active
Also Published As
Publication number | Publication date |
---|---|
EP2228586A1 (en) | 2010-09-15 |
ATE528577T1 (en) | 2011-10-15 |
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