EP2087386A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage

Info

Publication number
EP2087386A1
EP2087386A1 EP07819724A EP07819724A EP2087386A1 EP 2087386 A1 EP2087386 A1 EP 2087386A1 EP 07819724 A EP07819724 A EP 07819724A EP 07819724 A EP07819724 A EP 07819724A EP 2087386 A1 EP2087386 A1 EP 2087386A1
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
carriage
guiding element
housing
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.)
Withdrawn
Application number
EP07819724A
Other languages
German (de)
English (en)
Inventor
Bernd Schultheis
Petra Kuntze
Oliver Keiper
Sigurd Dressler
Andreas Hatzenbühler
Walter Bleuel
Klaus Engelmann
Paul Bon Saleh
Armin Plichta
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.)
Schott AG
Original Assignee
Schott AG
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
Priority claimed from DE102006058079A external-priority patent/DE102006058079B4/de
Priority claimed from DE102007024014A external-priority patent/DE102007024014A1/de
Application filed by Schott AG filed Critical Schott AG
Priority to EP07819724A priority Critical patent/EP2087386A1/fr
Publication of EP2087386A1 publication Critical patent/EP2087386A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/12—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting onto the surface to be illuminated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/40—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types
    • B60Q3/41—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types for mass transit vehicles, e.g. buses
    • B60Q3/44—Spotlighting, e.g. reading lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/50—Mounting arrangements
    • B60Q3/56—Lighting devices mounted on elongate supports, e.g. on flexible arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/76—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for spotlighting, e.g. reading lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • B60Q3/85—Circuits; Control arrangements for manual control of the light, e.g. of colour, orientation or intensity
    • 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture

Definitions

  • the invention relates to a lighting device, preferably a reading lamp, which has a light source with preferably at least one light emitting diode and a light guide for illuminating an object.
  • a light source such as an LED lighting unit
  • a flexible or rigid optical fiber Such light sources are u.a. used for curing dental fillings.
  • An irradiation apparatus including a light-emitting unit and a light-receiving unit having an entrance opening, the light-emitting unit comprising a plurality of light-emitting elements whose rays emitting in a light beam directly irradiate the entrance openings.
  • US 2004/0043351 A1 describes a similar unit in which a lens element is provided for better focusing.
  • the object of the invention is to provide a lighting device, on the one hand is compact and on the other hand ensures a flexible illumination of objects within defined limits. In order to ensure a sufficiently high illuminance, high-performance light sources should be usable.
  • the object of the invention is achieved by a lighting device which incorporates the features mentioned in the introduction and / or the following features. These features also include preferred embodiments. In the following, the symbol indicates particular advantages of the described embodiment.
  • the light from a light source (10) is coupled into a light coupling surface (23) of a light guide element (20) having a light guide axis (22) and by means of the light guide element through a light output surface (26) to be illuminated Surface guided.
  • the light incoupling surface describes the end of the light guide element, via which the light enters the light guide.
  • the light output surface describes the end of the light guide, over which the light exits the light guide. If the light-guiding element is provided, for example, by fibers, the light-incoupling surface and the light-outcoupling surface are defined by the respective end of the fibers.
  • a free-jet area may exist between the light source and the light incoupling area, such that the light source may optionally be arranged away from the light-incoupling area, so that there is a gap between Both usually an air gap is located.
  • a free-jet region is also described in that the light-incoupling surface of the light-guiding element does not have to rest directly on the light source but can be spaced apart from it.
  • the light can be directed to the light-incoupling surface of the light-guiding element via an optical component, for example a lens. The optical component would be part of the free jet area.
  • the light-guiding element is pivotable about a pivot-tilt point (28) and / or tiltable arranged so that a user of the lighting device can direct the light to those places where he wants a lighting.
  • a pivoting movement while the lateral pivoting is referred to, for example, a movement to the left or to the right or the other way round, and as tilting is called a pitching motion, ie a movement from top to bottom or vice versa.
  • tilting ie a movement from top to bottom or vice versa.
  • the lighting device By deflecting the light originating from the light source by means of the light-guiding element, it is possible to design the lighting device in a particularly compact manner. If the light source were used directly for lighting, means for cooling the light source would also be necessary, especially when using high-power light sources in or on it, which would thus also have to be provided in the immediate vicinity of the lighting location. In particular known from aircraft LED reading lamps would mean that the Lighting head, in which the LEDs are integrated, would have to be correspondingly large. However, the use of a light guide allows separation of the exit location of the illuminating light from the light source itself, which may be located near or directly to a preferably passive heat sink.
  • the pivoting / tilting point (28) assigned to the light guiding element can preferably be arranged at the intersection of the light guiding axis (22) and the light coupling surface (23), which has advantages for the light coupling with regard to high luminous efficacy and a low dependence of the light losses on the pan / tilt angle brings the light guide with it.
  • the light-guiding element is preferably rotatably mounted about its light-guiding axis.
  • the light guide may have two legs, a longer and a shorter, which are connected to each other but tilted relative to each other. That in the longer leg, thus in the main section of the
  • Light guiding element guided light is also passed through the transition into the tilted arranged shorter leg in the tilted direction of the shorter leg.
  • the pan / tilt angle is less than 40 °, preferably less than 30 °.
  • the light guide element (20) is rotatably mounted around the light guide axis (22).
  • the light-guiding element (20) is preferably mounted so as to be displaceable axially relative to the light source (10), the light-guiding axis (22) of one limb (21) of the light-guiding element (20) or the light-guiding element (20) being connected to the beam axis (13) of the light source ( 10) lie on each other.
  • the lighting device (1) can be retracted and designed to save space, which brings with it safety advantages for many applications.
  • the free jet area is the largest, while in the retracted state, only a reduced, in particular minimum, distance exists.
  • the axial displaceability of the light guide has the advantage that the lighting device in the retracted state, even when used, can be made very compact and space-saving.
  • the light guide axis (22) of the light guide element (20) or relative to the beam axis (13) of the light source (10) is aligned coaxially with each other.
  • the highest beam intensities of the transmitted light can be achieved.
  • the light guide (20) particularly preferably consists of a transparent plastic material (for example PMMA or polycarbonate) or glass, for example of a highly transparent borosilicate glass (eg DURAN ®.)
  • the light-guiding element (20) is constructed in a particularly preferred embodiment of a plurality of fibers, in particular of a transparent plastic or of glass fibers.
  • the light guide element (20) may be straight, i. it has only a single light guide axis (22).
  • the light-guiding element (20) can also be formed from flexible optical fibers, for example one or more glass-fiber bundles or one or more bundles of plastic fibers.
  • Fiber rods are particularly preferably used from a glass having a N A of about 0.5. With this numerical aperture acceptance angle of about 30 ° are possible, ie the pan / tilt angle can be a maximum of about 30 °, without the light output decreases to unacceptable levels.
  • the fiber rods are known to consist of a plurality of optical fibers of a core glass, each of which is surrounded by a jacket made of glass, which generally has a smaller refractive index than the core glass.
  • fiber rods which are formed of a plurality of optical fibers of a core glass, which are not individually covered by a sheath, but in which the sheath envelops the entire fiber rod.
  • fiber rods which are formed of a plurality of optical fibers of a core glass, which are not individually covered by a sheath, but in which the sheath envelops the entire fiber rod.
  • the fiber rod additionally having a cladding enclosing the rod with its lateral surfaces.
  • This outer coat can be colorless, but also dyed for certain applications. When using the colorless outer shell this can additionally increase the light output, as this ensures that in addition from the optical fibers vagabonding light can be directed to the illumination.
  • This sheath line can advantageously contribute to an increase in the acceptance angle for light-guiding elements, preferably in the case of light-guiding elements whose N A is not equal to 1.
  • a light guide element consisting of one part, for example a solid glass rod, this can contribute to the homogenization of the light profile originating from the light source, since a mixture of the light can also take place in particular by multiple reflection on the walls of the light guide element.
  • the light guide element (20) has at least one bending region (27) such that the light guide element (20) has a limb (21) with a light guide axis (22) and a light coupling surface (23) perpendicular to the light guide Lichtleitachse (22) is arranged, and a further leg (24) having a Lichtleitachse (25) and a Lichtauskoppel behavior (26), wherein the Lichtleitachse (22) and Lichtleitachse (25) form a bending or tilt angle relative to each other, which between 0 ° and 90 °, preferably between 20 ° and 70 °.
  • a flexible illumination of, for example, filing tables, work surfaces is made possible and the illumination cone (29) can be individually adapted to the respective needs.
  • Combinations of flexible and rigid elements are possible as a light guide or light guide.
  • the light entry surface of the light guide element is preferably polished and / or anti-reflective, e.g. by means of an antireflection coating.
  • the housing in which the light-guiding element and the light source are mounted and / or at least part of the housing is / are mirrored between the light source and the light-entry surface of the light-guiding element.
  • the housing of the lighting device is mirrored in the free-jet area.
  • the light guide element (20) preferably has a light emission surface (26) which forms an angle of not equal to 90 ° with respect to the light guide axis (22) of the light guide element (20) or with respect to the light guide axis (25) of the one limb (24) of the light guide element. whereby an oblique emission direction of the illumination cone is made possible.
  • the diameter of a fiber optic light-conducting element is particularly preferably between 5 and 8 mm. Larger diameters are also possible depending on the application, if less demands are placed on the compactness for the corresponding application. Of course, smaller diameters can also be realized for corresponding applications.
  • the light output surface (26) is preferably polished or slightly frosted, with a frosted surface for more uniform illumination and a polished surface for spot lighting is more advantageous.
  • the light incoupling surface (23) can be designed flat, convex or concave, wherein when the surface is polished and preferably non-reflective, there is a smaller angle dependence with respect to the light coupling, in particular with concave geometry.
  • the light element has side-emitting properties. This means it can decouple light from its Rare Walls. This can be achieved, inter alia, by roughening the outer wall of the light-guiding element and / or providing it with scattering centers, so that light can be coupled out substantially perpendicularly to the light-guiding axis.
  • the light source (10) preferably has a focusing element (12) with which its light beams can be focused on a focal plane (14).
  • the printed circuit board (15) of the light source particularly preferably has control electronics (16) for the light-emitting diode (11) which, for example, keeps the current constant, thereby ensuring, in a compact construction, overload protection of the light-emitting diode and permanently uniform brightness.
  • the circuit board (15) preferably also has a switch (17), for example in the form of a microswitch, with which the light source (10) can be switched on / off and / or dimmed in one or more stages.
  • the board is connected via a supply line, additional board or via a receiving socket with the switch.
  • An actuating surface for the mechanical actuation of a switch can be arranged or integrally formed on the light element or on the border of the light element (20).
  • a permanent magnet can be mounted, which serves to operate a non-contact switch (17).
  • the switch (17), which is mounted on the board can be operated mechanically or without contact.
  • the touch-free operation of the switch (17) can be understood as an optical, inductive or capacitive actuation of the switch.
  • the switch (17) is preferably connected with axial displacement of the light-guiding element, in particular after the pan-tilt movement of the light-guiding element (20) and / or during the rotational movement about the light-guiding axis of the light-guiding element (20) are completed upon its return.
  • a reflection element can be arranged on the light element (20) or on the border of the light element.
  • the reflection element may be formed as a mirror or as a foil.
  • An alternative would be to apply a contrasting color. In conjunction with three-color RGB LEDs, a color change is also possible.
  • the LEDs When using white light LEDs, it is known that the LEDs also have a more or less different color temperature due to their production. Therefore, either electronic circuits are used to achieve a certain color temperature, or LEDs are selected from a so-called bin, which then have a fairly similar color temperature.
  • materials e.g., glasses
  • the glass acts specifically as a color filter. If, for example, a glass rod with properties homogenizing the beam profile is used as the light guide, which causes transmission of the transmitted light in transmission, a cluster of white light LEDs can be used as the light source, which usually has a too cold color temperature, and the lighting location nevertheless becomes reached a neutral color temperature.
  • the heat sink (40) may be part of a housing attachment for the lighting device (1). If the lighting device is integrated, for example, in a seat, a thermally conductive frame of the seat, which is usually present anyway, serve as a passive heat sink and thus make an active cooling of the light sources or large-scale passive heat sink superfluous, with passive cooling being understood as cooling, which does not require fans or Peltier elements or other energy consuming elements. This contributes to the compactness and to Low noise of the lighting device at.
  • the light guide element (20) of the illumination device (1) preferably has a rest position in the switched-off state of the light source (10) and a working position in the switched-on state, which is displaced along the beam axis (13) of the light source (10), whereby the integration in one Push-push housing is advantageously possible.
  • the ratio of the surface of the Lichtemkoppelflache (23) to the surface of the Lichtauskoppelflache (26) of the light guide (20) may not be equal to 1, whereby an adjustment of the numerical aperture of the light guide (20) to the radiation characteristic of the light source (10) is made possible.
  • the Lichtauskoppelflache (26) may have any contour, wherein the Lichtemkoppelflache (23) is preferably circular.
  • the illumination device comprises a displaceable carriage for holding and, preferably, axially, driving the light-conducting element.
  • the carriage can also be referred to as a push element.
  • the light guide is attached to the carriage.
  • the light-guiding element is arranged at least partially within the carriage.
  • the light-guiding element can be inclined, in particular curved or angled, within the carriage to the housing axis, so that the light can escape laterally through the light coupling-out surface.
  • the carriage has at least partially the shape of a pin, at its lower end at least one Fin, preferably two fins, is arranged to guide the carriage or are.
  • the guide is in a ball and / or in a housing, which will be described below.
  • a fin a "back fin-like” or “keel-like” extension for guiding and / or stabilizing the carriage, in particular in the housing and / or the ball, referred to.
  • the lighting device also has a housing for receiving the ball, which will be described below, and / or the carriage.
  • the light-guiding axis of the light-guiding element is arranged at least in sections parallel to the housing axis.
  • the housing is preferably formed in one piece. It has in particular a substantially triangular
  • the lighting device may comprise a ball for supporting the carriage.
  • a ball is a body for recording, for
  • the ball can also be referred to as a ball element or bearing element.
  • the ball has at least partially the shape of a spherical shape.
  • the ball is formed as a ball without the respective spherical caps.
  • the light guide and / or the carriage is or are axially movable in the ball and / or arranged to be movable in the housing. In this case, the light guide and / or the slide extends through the ball.
  • the ball is mounted on and / or slidably movable in the housing.
  • the ball is mounted on, preferably four, ribs which are arranged at least in sections inside the housing.
  • the preferably 2-dimensional, control cam defined and which is preferably arranged on an outer side of the carriage.
  • the engagement element is slidably running in the groove. The engagement element is latched in at least two positions in the control cam, which in particular define a retractable and an extended position of the light guide.
  • control cam is designed essentially as a heart curve, which is extended in particular downwards and / or upwards through at least one, preferably essentially linear, extension.
  • heart curve refers to a control curve that is essentially heart-shaped. The tip of the heart curve points towards
  • the tip of the heart curve defines the extended position of the light guide.
  • the inwardly converging curves serve in their point of contact as a detent recess for the carriage connected via the engagement element in its retracted position.
  • the point of contact of the heart curve thus defines the recessed position of the light-guiding element.
  • the aforementioned curves may be arcuate or angular.
  • the heart is at least partially or completely constructed of linear sections, so that the heart is at least partially or completely formed by corners.
  • the heart is at least partially polygonal shaped.
  • the heart here has 5 or 6 corners.
  • the heart is not formed mirror-symmetrically but in particular has a two-dimensional Zwangs Kunststoffk ⁇ rve.
  • the light guide and / or the carriage is against the pressure of a spring, for example a tension spring, in particular axially, movable or displaceable.
  • the spring is attached to the ball at an upper side and to the light guide member and / or the carriage at a lower side so that the ball and the light guide member and / or the carriage are biased against each other.
  • the upper side of the spring is attached to a first projection which is located in the inside of the ball, and the lower side of the spring is attached to a second projection which is located on the outside of the carriage, preferably detachably.
  • Carriage has in its outer side for guiding the spring a kind of groove, a recess or a notch, in which the spring is positioned and guided safely.
  • control cam and the spring are arranged on the same side of the carriage.
  • the control cam and the spring are arranged at an average distance of less than 10 mm, preferably smaller than 5 mm, to each other.
  • the spring and the combination of engagement element and control cam cooperate such that the light guide and / or the carriage in a retracted position and in an extended position is latched and limited in an extended position against a mechanical stop or are.
  • the function of the fin is or includes, the individually adjusted position of the lighting when the slide is extended during the insertion movement, in particular for switching off), the provision of the mechanics, in particular the ball position in the nominal position to accomplish.
  • the function of the spatial return is arbitrarily in the sequence according to the operation and consists of the reset movement to the Z-axis through the at least one lateral guide rail.
  • the Z axis is described in particular by the housing axis.
  • the resetting of the pivoting movements of the X- and Y-axis is carried out by a kind in a first approximation funnel-shaped guide surface.
  • the X and Y axes are in particular perpendicular to the Z axis.
  • the movement of the fin is controlled by at least one guide surface arranged in the interior of the housing.
  • the lateral guide surface for the fin is provided by arranged on the inside of the housing guide rails.
  • the guide rail is formed by two guide ribs or two elevations, such as burrs, and / or by a recess.
  • the guide ribs have for defined insertion of the fin in the guide rail, at least in the upper, ie facing away from the light incidence area, curved surfaces.
  • the guide rail is preferably formed by the ribs, which provide the bearing surface for the ball in its upper region.
  • the guide rail is widened in its upper part and narrowed in its lower part. The broadening allows for a simplified threading or insertion of the fin in the guide rail. On the other hand, this widening allows a rotation of the
  • the guide rail is formed by at least two sections, wherein the first upper section is widened and the second lower section is a, preferably uniform, groove.
  • the shape of the guide rail can also be referred to as funnel-shaped.
  • the fin is rotatable about the housing axis in the extended position of the light guide within a range of up to about +/- 15 °. The fin comes in its extended position in engagement with the arranged in the bottom of the ball recess. Thus, the ball is also rotated by a rotation of the carriage.
  • the fin is controlled during transfer of the light guide from its extended position to its recessed position by the guide rail so that the carriage is transferred from the released position through the constriction in a locked position.
  • the light-guiding element preferably the carriage, the ball and / or the housing cooperate in such a way that the
  • Light guide and / or the carriage is in the retracted position in a substantially locked and / or non-rotating position.
  • the light guide and / or the carriage is not rotatable in the retracted or retracted position substantially.
  • the light-guiding element preferably the carriage, the ball and / or the housing also cooperate in such a way that the light-guiding element and / or the carriage is in the extended position in the released position.
  • a position is referred to, in which the light-guiding element and / or the carriage, within certain limits in three dimensions, in particular in the pivoting and rotating movement, is movable.
  • Lichtauskoppel radiate emerging light in different directions. This is achieved by a rotation of the light-guiding element and / or the carriage and by a tilting or pivoting of the light-guiding element and / or the carriage. Due to the arrangement in the ball thus the ball is moved.
  • the light guide and / or the carriage is in the extended position by a defined angle, preferably of up to +/- 15 °, about its own axis and / or the housing axis, rotatable.
  • the light guiding element and / or the carriage in the extended position is or can be tilted or tilted about the pivot-tilting point described above.
  • the light guide and / or the carriage is in this case preferably tiltable relative to the housing axis by an angle of up to +/- 20 °, a total of 40 °, and correspondingly also 3-dimensionally pivotable.
  • the upper side of the light-guiding element and / or the carriage when the light-guiding element and / or the carriage is moved in the extended state, at least in sections, describes a spherical surface, in particular a spherical cap.
  • the lighting device additionally has a damping device for carrying and / or steaming the movement of the light-guiding element and / or the carriage.
  • the damping device is arranged on the opposite side of the carriage to the engagement element.
  • the damping device is preferably arranged between the ball and the light-guiding element and / or slide. The damping element acts during extension, during retraction or both during extension and retraction of the light guide and / or the carriage.
  • the damping device interacts with the ball in such a way that a, preferably axial, movement of the light-guiding element and / or of the slide is damped.
  • the damping device is arranged on the light-guiding element and / or the carriage, preferably fastened.
  • the Dampfungsein ⁇ chtung is for this purpose in a recess or opening, which is introduced on an outer side of the carriage, positioned.
  • This recess has a guide, which at least in sections has a survey and which cooperates with a recess which is introduced in the inside of the ball, so that a rotational movement of the carriage is reduced or suppressed in the ball.
  • This damping device is preferably a rotary steam generator.
  • the Dampfungs beautiful is designed as a gear.
  • the damping of the movement is in this case in particular due to the viscosity of a liquid in which the damping device moves in sections.
  • the damping element consists in an embodiment of at least one housing part with special External teeth, and a gear that is attached to the damped rotor shaft
  • the gear of the damping element meshes, preferably always, in the structuring, e.g. in the formation of a rack, which is arranged or formed on the inside of the ball.
  • the housing acts with a structuring, preferably formed as grooves, which in the inside of the
  • the damping element acts only during extension, only when retracting or both during retraction and extension of the light guide and / or the carriage.
  • the illumination device has at least one optical component, preferably a lens, for guiding, steering and / or focusing the light from the light source onto the light coupling surface.
  • the component is arranged both on the light guide axis and on the housing axis.
  • the component is arranged inside the housing.
  • the housing is equipped with fastening means on which the component, preferably replaceable, attached.
  • the holder in particular the lens holder, is integrated in the housing.
  • the component is positioned below the guide rail.
  • the switch or switching element which is already described above, is arranged in a receiving pocket, which is fixed inside the housing.
  • the switching element cooperates with at least one actuator of the carriage, for example formed in the form of a projection, which is arranged on the lower side of the carriage, so that a switching operation for activating or deactivating the lighting means can be triggered.
  • the light element or the light source is preferably switched on in the extended position of the light-guiding element. By contrast, in the lowered position of the light-guiding element, it is preferably switched off.
  • Said actuator can along an outer side of the receiving pocket, preferably non-contact, slide and thus trigger a switching operation.
  • the projection of an outer side of the receiving pocket cooperates so that the projection on the receiving pocket, in particular in the retracted position of the light guide and / or the carriage come to rest and a rotational movement can be additionally limited.
  • the actuator for triggering the switching operation is preferably arranged below the heart curve.
  • the one side length of the carriage is extended relative to the other sides.
  • the light guide and / or the carriage is or are movable in the extended position in all three spatial directions.
  • the entire freedom of movement of the light guide and / or the carriage in the extended position is when sinking or insertion returned to the housing in the central position and is in particular substantially suppressed.
  • the light-guiding element and / or the slide can be retracted in the housing and / or the ball.
  • the light guide and / or the carriage is or are movable in the extended position in all three spatial directions.
  • the entire freedom of movement of the light guide and / or the carriage in the extended position is when sinking or insertion returned to the housing in the central position and is in particular substantially suppressed.
  • the light-guiding element and / or the slide can be retracted in the housing and / or the ball.
  • the light guide and / or the light guide and / or the light guide and / or the carriage is or are movable in the extended position in all three spatial directions.
  • the present invention comprises a lighting device with a destruction protection for a latching mechanism.
  • the lighting device comprises a, preferably rotatable, bearing element, in which a carriage, which carries a lighting element, preferably a light guide, is arranged, in particular axially displaceable, wherein on the displacement of a latching element in a control cam at least one locking position, in particular a latching position of the carriage is generated in the bearing element, so that in at least one direction of movement of the carriage in the bearing element, the movement of the carriage is limited by at least one stop such that the latching element is movable up to the contact position of the Einrastiatas on an outer wall of the control cam, but not beyond ,
  • the lighting element may in this case be arranged, for example, in the carriage.
  • a destruction protection for a latching mechanism for a device in particular a lighting device comprising a carriage and a preferably rotatable Bearing element in which the carriage, in particular a lighting element, preferably a light-conducting element, carries, in particular axially displaceable, wherein the displacement of a latching element in a control cam at least one locking position, in particular a latching position of the carriage is generated in the bearing element, so that in at least one direction of movement of the carriage in the bearing element, the movement of the carriage is limited by at least one stop such that the latching element is movable up to the contact position of the latching element on an outer wall of the control cam, but not beyond.
  • the lighting device or the destruction protection is characterized in that the movement is limited so that it ends before the contact position of the latching element on the wall of the control cam.
  • Lighting device or the destruction protection characterized in that the control cam has at least one extension which is designed such that the latching element does not come to rest against the outer wall of the control cam in a movement to the stop.
  • the destruction protection may further include the features listed in the present specification.
  • the lighting device (1) as seat lighting, as reading light for aircraft seats, for Seats in rail vehicles and / or in motor vehicles, especially in cars or coaches, the compact design and high functionality is particularly attractive.
  • Work lamp which can be integrated in ceilings or walls.
  • the lighting device (1) as glare-free, possibly retractable instrument lighting in cars (for example in the cockpit, center console, roof console, as card reading lamp).
  • the advantage of the illumination device according to the invention comes to bear, that it can be made very compact.
  • the lighting device according to the invention also has significant economic advantages over previously known lighting devices.
  • FIG. 1 shows the plan view, shown only schematically, of an embodiment of a lighting device according to the invention
  • FIG. 2 shows the side view of the illumination device according to the invention shown in FIG. 1,
  • FIGS. 4.a and 4.b show the embodiment with built-in light guide element shown in FIGS.
  • Figures ⁇ .a and ⁇ .b an outer and an inner view of the ball for supporting the light-guiding element
  • FIG. 7 shows the heart curve according to the invention.
  • the lighting device comprises a light source (10) and a pivotable about a pivot-tilt point (28) and / or tiltable light-guiding element (20), which has at least one light-guiding axis (22) and at least one light-coupling surface (23) and a light-outcoupling surface (26).
  • the light guide axis is that axis or direction of the light guide element (20), along which the main propagation direction of the guided light extends and which generally corresponds to the axis of symmetry of the light guide element (20).
  • the light-guiding element (20) is, preferably axially displaceable, arranged such that a free-jet region (9) can exist between the light source (10) and the light-coupling surface (23).
  • the light-guiding element (20) is rotatably mounted in addition to its pivotable tiltability about its light guide axis (22).
  • the swing-and-tilt angle in this preferred embodiment is less than 40 °, preferably less than 30 °.
  • the light-guiding element (20) is axially displaceable relative to the light source (10) in addition to its pivoting and tilting capability, preferably mounted so as to be displaceable parallel to its light-guiding axis.
  • the Lichtleitachse (22) of the light guide element (20) in a further embodiment relative to the beam axis (13) of the light source (10) arranged coaxially, this means that the lateral offset between the light propagation direction of the
  • Light source originating light with the substantially highest light intensity and the light guide axis is minimized.
  • the light guide (20) is preferably made of a transparent plastic or glass, preferably made of a highly transparent borosilicate glass and particularly preferably consists of DURAN ®.
  • the light guide element (20) is rigid and composed of a plurality of fibers of a transparent plastic or glass fibers.
  • the light-guiding element (20) can be constructed by rigidly interconnected or flexibly held optical fibers.
  • the light guide (20) is rigid and designed as internally mirrored hollow body, for example as a columnar hollow body with a round, elliptical or polygonal cross-section.
  • the light-guiding element (20) can either be designed to run straight or alternatively be provided with at least one bending or bending region (27), wherein the
  • Light guide (20) then includes a leg (21) having a Lichtleitachse (22) and a Lichteinkoppelflache (23) which is perpendicular or oblique to the Lichtleitachse (22), and a further leg (24) with a Lichtleitachse (25) and one Light outcoupling surface (26), wherein the Lichtleitachse (22) and Lichtleitachse (25) form an angle of greater than or equal to 0 ° and less than or equal to 90 °.
  • the light-guiding element (20) may consist of a combination of flexible optical fibers and rigid elements.
  • the light output surface (26) can be polished or slightly frosted and have a flat, convex or concave shape.
  • the surface of the light coupling surface (23) is preferably polished and provided with an antireflection coating.
  • the light-conducting element (20) can have side-emitting properties, in order to thereby provide adequate ambient lighting.
  • the light source (10) which is preferably a white light LED or comprises a combination of red, blue and green LEDs, may have a focusing element (12) with which the light beams can be focused.
  • the light beams can be focused on a focus area (14) which is arranged in the light input surface (23) of the light guide element (20) or if the light input surface of the light guide is convex or concave, in a real or virtual, by the light input surface relative to Lichtleitachse defined focus.
  • a real or virtual focal point is understood to mean that location from which light beams propagate substantially parallel to the light guide axis of the light guide element. As substantially parallel, deviations from the actual direction of the light guide axis of up to 20 °, preferably up to 10 ° and most preferably up to 5 ° are considered.
  • the white light LED is on a circuit board
  • Control electronics (16) designed so that the white light LED or the LED's are dimmable steplessly or in stages with this.
  • the board (15) has a switch (17) with which the light source (10) on / off and / or dimmable in one or more stages With the help of a supply line, additional board or a receiving socket, the switch be connected to the board.
  • a further preferred embodiment comprises a non-contact or non-contact-actuated switch (17).
  • a permanent magnet is attached to the light element or to the border of the light element (20).
  • the permanent magnet is used for non-contact operation of the switch (17), which in this case can be designed, for example, as a reed contact or reed relay or can switch by means of the Hall effect.
  • the switch can detect optical signals by means of a light-emitting diode, for example detecting the absence of an optical signal as reflected signals or as a break in a light barrier.
  • the switch (17) also perform inductive or capacitive switching operations.
  • the switch (17) can also be actuated on the basis of the Hall effect.
  • a reflection element is arranged on the light element (20) or on the border of the light element.
  • the reflection element can as a mirror or be designed as a film.
  • the formation of a reflection elements can also be achieved by applying a contrasting color.
  • the lighting device comprises a heat sink
  • thermal coupling (18) to the fixed heat sink (40) can be ensured that, for example, LEDs can be used with comparatively high light output.
  • An active cooling of the light source (10) and the control electronics (16) is therefore not required in this embodiment.
  • the light-guiding element (20) of the illumination device (1) assumes a rest position when the light source (10) is switched off and, when switched on, a working position which is axial relative to the beam axis (13) of the light source (10) are offset.
  • the ratio of the surface of the light coupling surface (23) to the surface of the light outcoupling surface (26) of the light guide element (20) is preferably not equal to 1, in particular to adjust the numerical aperture of fibers of the light guide (20) to the radiation characteristic of the light guide.
  • FIG. 3 shows a further embodiment of the inventive lighting device 1 in a sectional view.
  • the light guide 20, which is not shown in the drawing for illustrative purposes, is arranged in a carriage 200.
  • the carriage 200 itself is in turn arranged in a ball 300 and inside a housing 400.
  • the ball 300 itself is in turn at least partially disposed in the interior of the housing 400 and mounted on the top of the housing 400 slidably.
  • the housing 400 itself is in turn positioned on a circuit board 15 or printed circuit board, in particular fixed.
  • the light source 10, which is not shown in the present drawing, is mounted on the circuit board 15. An optional lid for fixing the ball to the case is not shown in this illustration.
  • the wall 401 of the housing 400 can be seen.
  • the housing 400 is essentially cylindrical or cylinder-like.
  • the longitudinal axis 402 of the housing 400 is shown in the drawing.
  • a lens 12 for focusing the light emerging from the light source 10 is positioned inside the housing 400.
  • the lens 12 is fixed to the housing 400. It lies on the axis 402 of the housing 400.
  • the lens 12 in the present case forms a section of the free jet region 9 according to the invention.
  • the guide surfaces 410 are preferably formed integrally with the housing 400.
  • the guide rails 410 are disposed in a lower area substantially parallel to the housing axis 402.
  • the distance of the guide rails 410 to each other in the upper region of the Housing 400 widened.
  • the lower area is defined by the proximity to the board 15.
  • the upper area is defined by the proximity to the ball 300 and the ball element 300.
  • the ball 300 or the ball element 300 is mounted in the upper region of the housing 400.
  • the ball 300 is mounted on the upwardly extending guide rails 410. It is slidably mounted and thus initially movably mounted.
  • the ball element 300 is preferably formed in two-piece and connectable by means of screws. To recognize the openings for the introduction of the screws.
  • a spring element 430 is arranged laterally. This is optional.
  • the ball 300 is under a bias. To the bias to the bias to
  • the spring force acts at least perpendicular to the housing axis 402.
  • the spring element 430 is presently arranged between the outer wall of the housing 400 and an inner wall or tab 431. This tab 431 or tongue 431 abuts the ball 300. This tongue 431 or tab 431 is in particular formed integrally with the housing 400.
  • the carriage 200 is arranged. Shown are, on the one hand, the walls 201 of the carriage 200 and, on the other hand, the downwardly extending fins 210.
  • the walls 201 comprise both the shaded area and the unsecured area.
  • the present carriage 200 has, in particular at least, two fins 210.
  • a fin is mounted on the carriage 200 as a kind of "plate-shaped" attachment in the lower region.
  • the fins 210 may be formed integrally with the housing 201 of the carriage 200.
  • the illustrated position of the embodiment according to the invention corresponds to the recessed or retracted position.
  • the light-emitting means 10 is in particular not active.
  • the two fins 210 are guided or held on their outer side by the inner sides of the guide rails 410.
  • a tilting or pivoting of the carriage 200, or of the arranged in the carriage 200 light-guiding element 20 is not possible in this position.
  • a rotation about the housing axis 401 is not possible and if at all only to a very limited extent.
  • the carriage 200 and the light guide 20 are in their locked, that is sunk, position or position.
  • the light-guiding element 20 and / or the carriage 200 is or are arranged in the retracted or locked position essentially parallel to the housing axis 401.
  • FIG. 3.b shows a position of the lighting device 1 which essentially corresponds to that shown in FIG.
  • Position of the light guide 20 or the carriage 200 corresponds.
  • the light-guiding element 20 and / or the carriage 200 are in a position or position which is sunk deeper in relation to the ball 300 and the housing 400.
  • the spring element 430 is no longer shown.
  • the carriage 200 has been pushed down by a user in the direction of the housing axis 401. This corresponds to the first step of activating the luminous means 10.
  • Figure 3.c corresponds to the embodiment shown in Figure 3.a.
  • the carriage 200 in the present position is in its extended position.
  • the light-guiding element 20 is in its active state.
  • the fins 210 which were locked in Figure 3.a by the lower portion of the guide rails 410, are now, due to the larger diameter in the upper portion of the housing 400, in a released position relative to the housing 400. Tilting or pivoting of the fins 210 and thus also of the carriage 200 and the light-guiding element 20 is possible in this embodiment. The process of tilting is explained in detail in the three following figures.
  • the fins 210 have now come into engagement with a recess 301, which is arranged in the lower region of the ball 300.
  • the ball 300 By tilting and / or pivoting the carriage 200 or the light-guiding element 20, the ball 300 is now also tilted and / or swiveled.
  • the outer surfaces of the carriage 200 By placing the outer surfaces of the carriage 200 on the one hand in the upper part of the ball 300 on the inside of the ball 300 and the other on the fins 210 on the inside of the ball 300 in the lower region of the carriage 200 is safely and precisely guided and / or held ,
  • FIG. 3-d shows a position of the light-guiding element 20 or of the carriage 200, which essentially corresponds to the position shown in Figure 3.c.
  • the light-guiding element 20, and thus also the ball 300 and the carriage 200 are inclined to the housing axis 401.
  • the light-guiding element 20 is inclined at an angle of approximately 8 ° to the housing axis 401. Due to the possibility of pivoting and / or tilting the illumination device 1 according to the invention, different areas can be specifically illuminated. Another difference is that the slide 200 is sunk a little deeper than in Figure 3.c. However, the countersinking is shown only by way of example and is not necessarily required for a tilting of the light-guiding element 20.
  • the fin 210 shown on the left in the figure is initially in a free position inside the housing 400.
  • the tilting and / or pivoting is guided defined on the one hand, in particular controlled.
  • the design of the guide rail 410 also results in a restriction in the maximum tilt and / or swivel angle of the carriage 200 and / or the light-guiding element 20. Since the light-guiding element 20 and / or the carriage 200 is held and guided in the ball 300, respectively ., the ball 300 also pivots with the carriage 200.
  • the carriage 200 may also be referred to as a guide carriage 200.
  • the position of the carriage 200 and / or of the light-guiding element 20 shown in FIG. 3 e substantially corresponds to the position shown in FIG. 3 d.
  • the light-guiding element 20 is tilted at a larger angle to the housing axis 401.
  • the carriage 200 and / or the light-guiding element 20 is tilted by an exemplary angle of approximately 12 ° with respect to the housing axis 401. Due to the increasing tilting, the fin 210 shown on the right in the figure is in a higher position than the fin 210 shown in FIG.
  • the fin 210 shown on the right in FIGS. 3.d and 3.e is in its active position.
  • the active position is understood to mean that the fin 210 is in contact with the guide rail 410.
  • the fins 210 may also be referred to as guide fins 210.
  • the position of the light-guiding element 20 shown in FIG. 3.f substantially corresponds to the position already shown in FIG. 3.e.
  • the light-guiding element 20 and / or the carriage 200 are in an even further tilted position or position.
  • the tilt angle is approximately 20 degrees to the housing axis 401.
  • the fin 210 shown in the figure on the right is in its free position. Under a free position, it is understood that the fin 210 may still be in contact with the guide rail 410. Also, the fin 210 is rotatable in this area by a larger area, and in particular rotatable in a plane which is perpendicular to the housing axis 410.
  • the light-guiding element 20 is freely rotatable in this position within certain limits, preferably about the housing axis 401, and free tilting and / or pivoting about a pivot-tilting point 28.
  • the guide rails 410 form a control cam or a
  • FIG. 4a shows the lighting device 1 in a further sectional view. In the present case, the light guide 20 and the front ring 500 is now shown. The front ring 500 or the holder 500 is used for
  • the front ring 500 serves as a contact surface for the projections 310 shown in Figure 6.a.
  • the light guide 20 is in the interior of the carriage 200 in the present case by two brackets 202, 203 attached.
  • the representation of the luminous means 10 and the lens 12 has been omitted.
  • the light impinges on the light incoupling surface 23 of the light element 20 from below.
  • the light is then guided along the light guide 22 through the light guide 20.
  • the light-guiding element 20 In its upper region, the light-guiding element 20 has a bending region 27.
  • the light is led around the corner, so to speak. It then exits via the light output surface 26 from the light guide.
  • the light exits laterally from the lighting device 1.
  • the illuminated area may be changed by rotating the carriage 200 about the housing axis 401 and / or tilting the carriage 200 about a pivoting tipping point 28.
  • a symbol button 204 for example in the form of a translucent window 204.
  • the symbol button 204 may also be opaque, ie not translucent.
  • the symbol button 204 can be printed with a symbol, for example a lamp symbol, or has a corresponding texture / embossment on its surface.
  • the damping device 320 which dampens the movement of the carriage 200 in the ball 300 and / or targeted, especially supportive leads.
  • the damping element 320 is presently designed as a type of gear 320.
  • the damping element 320 cooperates with a structuring 330, which is arranged or introduced on or in the inside of the ball 300.
  • the structuring 330 in the inside of the ball 300 may be formed as a kind of row of teeth, which engages in the teeth of the gear.
  • stop surfaces 360 and 420 or stops 360 and 420 can still be seen.
  • the stopper 360 is disposed inside the ball 300.
  • the stopper 420 is disposed inside the housing 400. Their function will be explained below in connection with FIG.
  • the position of the light-guiding element 20 and / or of the carriage 200 shown in FIG. 4 b substantially corresponds to that shown in FIG. 4 a.
  • the sectional view is changed in the present case by an angle of 90 °.
  • structuring 330 in the inside of the ball 300 can be seen.
  • the gear 320 in the housing 400 and in the ball 300 is shown.
  • the fins 210 for guiding the carriage 200 in the housing 400 are not shown in the present illustration.
  • a projection 220 which is disposed on the one lower side of the carriage 200 and extends downwardly. This projection 220 is preferably formed integrally with the housing 201 of the carriage 200.
  • This projection 220 may also be referred to as a fin 210. Because the protrusion 220 can, preferably supporting, also participate in the leadership of the carriage 200 in the housing 400. An essential function of this projection 220, however, is to trigger the switching operation for activating and / or deactivating the luminous means 10. In the present case, the light-conducting element 20 or the device 1 is in its active position. The switch 17 is at the
  • the switching element 17 is mounted in a receiving pocket, which is not shown. Characterized in that the projection 220 is in its or an upper position, the switch 17, which is also referred to as switching element 17, in a released position. The light source 10 is activated. The circuit electronics or the wiring is not shown here. If the switching element 17, as stated above, designed as a mechanical switch 17, this switching operation operates via a contact of the projection 220 with the switching element 17. In a further embodiment, the switching operation, however, can be triggered without contact. In such a case, the proximity of the projection 220 to the position of the switching element 17.
  • FIG. 5 shows a perspective detail view of the inner region of the housing 400 in a plan view.
  • the housing 400 is shown without the ball 300 and carriage 200 being inserted therein.
  • the spring element 430 for biased holding the ball 300.
  • the tab 431 is presently formed by the bottom of the guide rail 410.
  • the inventive guide rail 410 is shown in detail. In the lower area, the guide rail 410 is formed as a kind of groove. This groove forms the second, preferably lower, portion or section 412 of the guide rail
  • the inner surfaces 416 or guide surfaces 416 are essentially not bevelled here. They form the sides of a substantially rectangular cuboid.
  • a first portion 411 connects. This portion 411 is widened in diameter relative to the second portion 412.
  • the inner surfaces 415 or guide surfaces 415 of the guide rail 410 are also bevelled in this first section 411. The diameter increases from bottom to top, preferably steadily.
  • the formation of the guide surfaces 415, 416 and 417 provide for simplified threading or imports of the fins 210 upon lowering or imports of the light guide 20 into the housing 400.
  • the fin 210 is guided thereby defined from a free position to the locked position.
  • Light guiding element 20 is defined by the second, ie lower, section 412, of the guide rail 410.
  • the fin 210 which is also referred to as Fuhrungsfmne 210, and thus the light-guiding element 20 is substantially no longer rotatable.
  • One possible limited rotatability may be due to a reduced thickness of the fin 210 relative to the diameter of the guide rail 410 in the lower region 412.
  • the broadening in the upper section 411 of the guide rail 410 ensures a rotatability or freedom of rotation of the fin 210 and thus also of the light-guiding element 20.
  • the guide surfaces 415 and 416 allow on the one hand the rotational movement of the light-guiding element 20 or of the carriage 200, in particular without there being any jamming or jamming of the fins 210.
  • the guide surfaces 415 also "catch" the rotational movement and / or the pivoting movement of the fins 210 and thus also of the light-guiding element 20. They guide this
  • Light guide 20 in particular from any position, in the retracted position back.
  • the guide surface 417 serves to guide the pivoting movement of the light-guiding element 20, in particular without jamming or jamming of the fins 210.
  • Guide surface 417 "catches" the pivoting movement of the fins 210 and leads the light guide 20, in particular from any position, in the retracted position.
  • an extended position of the light-guiding element 20 is possible by the possibility of a pivoting movement and a rotational movement of the light guide 20, within defined limits, any spatial illumination.
  • the design of the guide rail 410 and the fins 210 and their interaction, a return from any position of the light guide 20 in the retracted position is possible.
  • the retracted position can also be referred to as zero position. It is so to speak, a 3-dimensional feedback, which can also be generated by a pivoting and rotating movement.
  • this section 413 At the top of the first section 411, another section 413 follows. This is the so-called third section 413. This participates firstly in the introduction process of the fins 210. However, the essential function of this third section 413 is the bearing of the ball 300. This third section 413 thus constitutes a bearing surface for the ball 300.
  • the guide rail 410 is formed in all three sections 411, 412 and 413 in the present case by a kind of rib-shaped ridge.
  • the third section 413 has on the sides, which are remote from the Fuhrungsflachen, another
  • stop surface 414 This can be bevelled.
  • Rotational freedom of the light-guiding element 20 is limited. This is achieved in that at least in sections over the outer circumference of the ball 300 elevations 310 and projections 310 are distributed. These come into contact with the stop surface 414 during rotation and thus limit the rotatability of the ball 400 and thus also of the light-conducting element 20.
  • FIG. Figure ⁇ .a shows an outside view
  • the light guide element 20 and / or the carriage 200 is or are located in Figure .beta.a in its extended, ie upper, position.
  • the projections 310 are on the outside of the ball element 310, preferably evenly distributed over the circumference.
  • the distribution of the projections 310 is particularly adapted to the arrangement of the abutment surfaces 414 or the distribution of the guide rails 410.
  • These projections 310 then come with a rotation of the ball member 300 relative to the housing 400 to rest against the ribs mentioned above to Figure 5, which form the guide rails 410.
  • the protrusions 310 come into contact with the front ring 500 shown in FIG. 4.a during the pivoting of the light-guiding element 20.
  • FIG. 3 b shows an inside view of one side of the ball element 300 according to the invention.
  • the recess 340 in the present case designed as an opening, can be seen in the outside of the ball element 300.
  • the engagement element which is not shown here, is movable attached.
  • Another important feature is the projection 350 in the inside of the ball 300 to call.
  • This projection 350 is positioned, so to speak, next to the recess 340.
  • the spring element not shown here, for biasing the carriage 200 relative to the ball member 300 is attached.
  • FIG. 7 shows a External view of the lower portion of an outer side of the carriage 200 can be seen on the one hand on the outer sides of the two fins 210.
  • the projection 220 is shown for activating the switching operation of the bulb 10 in the lower region.
  • Projection 220 may also be referred to as an actuator for the switching operation.
  • a projection 250 which preferably in
  • the projection 250 also serves to secure the spring element and is preferably arranged in a kind of recess or trench 260.
  • the trench 260 serves to guide the spring, so that contact of the spring with the carriage is prevented.
  • Laterally offset from the projection 250 or from the trench 260 is a groove or recess 270.
  • This groove 270 represents the control cam 270.
  • the control cam 270 is in the present case designed as a heart cam 270.
  • the engagement member preferably formed as a kind of hook, is held at one end by the recess 340 in the ball 300 and engages at the other end in the cam 270 for engagement.
  • the engagement element is in this case slidably mounted in the control cam 270.
  • Control cam 270 the circuit and / or the movement of the carriage 200, in particular of the light-guiding element 20, controlled.
  • a spring preferably a coil spring, is held by the two projections 250 and 350.
  • the ball 300 and the carriage 200 are biased against each other.
  • the carriage 200 is moved downward. This will be the Spring still tense.
  • the restoring forces increase.
  • the engagement element is guided according to the deflection in the control cam 270.
  • the heart cam 270 engages two positions, a first, preferably upper, latching point 271 and a second, preferably lower, latching point 272, in which the engagement element can engage or remain in place.
  • the upper latching point 271 the light-guiding element 20 is in its retracted, preferably deactivated, position or position.
  • the system is biased by the spring.
  • the lower latching point 272 the light-guiding element 20 is in its extended, preferably activated, position or position.
  • the arrows show the direction of circulation of the
  • This first latching position 271 corresponds to the position shown in Figure 3a.
  • the light-guiding element 20 is now pressed slightly downwards. As a result, the engagement element is released and moves in the illustrated cam 270 to the top right.
  • the light guide 20 is sunk deeper in the housing 400 and the ball 300. This position corresponds to the position shown in Figure 3b.
  • the heart curve is extended in this upper region 273 shown on the right in the figure. In this upper heart region, a groove 273, preferably arranged parallel to the housing axis 402, is introduced.
  • the engagement element comes, even at maximum
  • the penetration depth is not defined here by the stop of the engagement element on the inner upper wall of the heart cam 270.
  • the maximum penetration depth is defined by the in Figure 4.a shown mechanical stop 420. This is in particular the fin 210 to the plant.
  • the engaging element can not be brought into contact with the upper right edge of the heart cam 270 even when handled improperly, for example due to excessive impressions of the light guide element 20, and can be printed out of it or even destroyed. In both cases, this would lead to a malfunction or even destruction of the lighting device.
  • the carriage 200 By removing the force acting from above, i. by releasing the light-guiding element 20, the carriage 200 is pulled upwards by the spring force.
  • the engagement element moves in the trench shown on the right from top to bottom. However, it does not come into contact with the lower edge of the heart curve 270. Rather, the heart curve 270 is extended at its tip by a further groove 274, which is preferably arranged parallel to the housing axis 402.
  • the protruding out of the light-guiding element 20 or its maximum external position is not defined here by the stop of the engagement element at the tip of the heart cam 270.
  • the maximum outer position is defined by the mechanical stop 360 shown in Figure 4.a. This comes to rest on a arranged on the outside of the carriage 200 stop.
  • the engagement element can not be brought into abutment with the lower edge of the heart cam 270 even when handled incorrectly, for example by a rough pulling on the light guide element 20, and can be printed out of it or even destroyed.
  • the engagement element is held by the spring force at the point 272, ie without bearing against the lower inner wall of the heart curve 270 or the apex of the heart.
  • the spring force prints the carriage 200 against the stop 360 in the ball element 300.
  • This lower point corresponds to the second engagement point 272.
  • Snap point 272 is the light guide 20 and / or the carriage 200 in the extended, ie active position. This corresponds to the position shown in FIG. 3d.
  • the light-guiding element 20 is to be deactivated again, then a force is to be exerted on the light-conducting element 20 and / or the carriage 200 from above.
  • the engagement element against the spring force is guided back up or the carriage 200 is guided downward, so that the engagement element relative to the carriage 200 and the heart cam 270 moves upward.
  • the engagement element Due to the asymmetrical configuration of the heart curve 270, the engagement element now takes the path shown on the left in the heart curve 270, passes a corner and does not come to rest in the upper left camber of the heart. The force that works from the outside is still present.
  • the heart curve is extended in this upper area shown in the figure on the left. In this upper heart area is one, preferably parallel to
  • Engagement element defined on the inner top wall of the heart cam 270.
  • the maximum penetration depth is in turn defined by the mechanical stop 420 shown in FIG. 4.a.
  • the engagement element can not be brought into contact with the upper left edge of the heart cam 270 even when handled improperly, in particular during deactivation, or even thrown out be destroyed.
  • the carriage 200 is pulled back upwards by the spring force.
  • the engagement member strikes the central elevation of the heart and is returned to the first detent position 271.
  • the system is again in the starting point already described above.
  • the system is switched off in this state. Because the actuator 220 is located in the vicinity of the switching element 17 and triggers a switching operation. By re-pressing the light guide 20 from top to bottom of the cycle can be repeated.
  • Lighting device 1 ensures. In particular, a malfunction of the engagement member by excessive pressing of the light guide 20 or pulling on the light guide 20 is not possible.
  • the engagement element essentially takes over only the function of the guide from one latching position 271 in the other 272 and vice versa. However, it does not form the stop for the movement or for the latching points 271 and 272.
  • the lighting device 1 can be a
  • the lighting device described above is advantageously used as seat lighting and / or reading light for aircraft seats and / or for seats in rail vehicles and / or in motor vehicles, which can be integrated in ceilings, walls or in the seats.
  • the use as a work lamp that can be integrated into ceilings or walls brings due to the Compact design significant advantages.
  • the lighting device can be integrated or installed in the ceiling, in the wall or in the seat in such a way that it is at least partially sunk.
  • the lighting device emerges in the extended position of the light guide from the ceiling, the wall or the seat.
  • the lighting device as glare-free, possibly retractable instrument lighting in cars, especially as effect lighting especially for aircraft.
  • the illumination device according to the invention has the advantage that it has a compact design and nevertheless makes it possible to efficiently guide light to the location via a pivotable and / or tiltable light-conducting element, which is displaceable in the direction of the light source should.
  • the at least one light-emitting diode is mounted on a board, which is preferably connected by means of a thermal coupling fixed to a fixed heat sink, even at high
  • Light output can be dispensed with an active, energy-requiring cooling device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif d'éclairage, de préférence une lampe de lecture, lequel dispositif est d'une part de structure compacte et assure d'autre part un éclairage flexible d'objets. Afin de garantir une puissance d'éclairage suffisamment élevée, des sources lumineuses performantes peuvent être utilisées. Le dispositif comprend de préférence une source lumineuse (10) et un élément de guidage de lumière (20) pouvant pivoter et/ou basculer autour d'un point de pivotement-basculement (28), lequel élément présente au moins un axe de guidage de lumière et au moins une surface d'injection de lumière (23) ainsi qu'une surface de sortie de lumière. L'élément de guidage de lumière (20) est de préférence disposé de manière coulissante axialement de manière à pouvoir contenir une zone à rayonnement libre entre la source lumineuse (10) et la surface d'injection de lumière (23).
EP07819724A 2006-11-09 2007-11-09 Dispositif d'éclairage Withdrawn EP2087386A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07819724A EP2087386A1 (fr) 2006-11-09 2007-11-09 Dispositif d'éclairage

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP06023285 2006-11-09
DE102006058079A DE102006058079B4 (de) 2006-12-07 2006-12-07 Beleuchtungsvorrichtung
DE102007024014A DE102007024014A1 (de) 2007-05-22 2007-05-22 Beleuchtungsvorrichtung
PCT/EP2007/009729 WO2008055694A1 (fr) 2006-11-09 2007-11-09 Dispositif d'éclairage
EP07819724A EP2087386A1 (fr) 2006-11-09 2007-11-09 Dispositif d'éclairage

Publications (1)

Publication Number Publication Date
EP2087386A1 true EP2087386A1 (fr) 2009-08-12

Family

ID=39047833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819724A Withdrawn EP2087386A1 (fr) 2006-11-09 2007-11-09 Dispositif d'éclairage

Country Status (3)

Country Link
US (1) US8382346B2 (fr)
EP (1) EP2087386A1 (fr)
WO (1) WO2008055694A1 (fr)

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Also Published As

Publication number Publication date
US20100002443A1 (en) 2010-01-07
US8382346B2 (en) 2013-02-26
WO2008055694A1 (fr) 2008-05-15

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