摘要:
An LED module is described with a base 10 made out of a heat conducting material. An LED element (32) is arranged in a cavity (11) of the base. A collimator reflector (70) is formed by reflective surfaces (24, 64, 66a). Three of these reflective surfaces (66a, 66b, 64) are provided on a plastic insert (60) received in the cavity (11). A further reflective surface (24) is provided on the base (10) itself. This surface (24) has a straight border line (50). The collimator reflector (70) is arranged to reflect light from the LED (32) so that a cut-off (72) is formed by the straight border line (50). By thus integrating the cut-off, as the most critical optical element, into the base (10) itself, high accuracy is achieved.
摘要:
An LED module is described with a base 10 made out of a heat conducting material. An LED element (32) is arranged in a cavity (11) of the base. A collimator reflector (70) is formed by reflective surfaces (24, 64, 66a). Three of these reflective surfaces (66a, 66b, 64) are provided on a plastic insert (60) received in the cavity (11). A further reflective surface (24) is provided on the base (10) itself. This surface (24) has a straight border line (50). The collimator reflector (70) is arranged to reflect light from the LED (32) so that a cut-off (72) is formed by the straight border line (50). By thus integrating the cut-off, as the most critical optical element, into the base (10) itself, high accuracy is achieved.
摘要:
An LED package including a collimator body adapted to collect and/or reflect and/or focus light. An upper plane provided by the collimator body defines a mainly horizontal plane. At least one reflection surface is provided by the collimator body and is at least partially angled to the horizontal plane. The collimator body includes a recess for receiving a lighting element including a light emitting front face such that the reflection surface extends at least partially below the level of the front face in an assembled state. Due to the angle of the reflection surface with respect to the horizontal plane of the collimator body, a small light source and a high luminous flux at the same time are provided so that the luminance and the brightness of the LED package are increased.
摘要:
A light source comprising a light engine (10), especially with at least one LED and/or at least one laser light emitting element, and further comprising a light guide (11) and an out-coupling structure (12) is proposed. By this, a flexible scheme to tailor the source size and radiation characteristic of an LED- or laser based system is provided. The size and the position of the out-coupling structure (12) can be chosen to be comparable to the size and position of the filament or arc of a conventional light source like an incandescent-, halogen- or gas discharge burner. The disclosed LED/laser light source is retrofit from an optical point of view so that it can replace a conventional light source like an incandescent-, halogen- or gas discharge bulb or burner in an illumination device.
摘要:
A light source comprising a light engine (10), especially with at least one LED and/or at least one laser light emitting element, and further comprising a light guide (11) and an out-coupling structure (12) is proposed. By this, a flexible scheme to tailor the source size and radiation characteristic of an LED- or laser based system is provided. The size and the position of the out-coupling structure (12) can be chosen to be comparable to the size and position of the filament or arc of a conventional light source like an incandescent-, halogen- or gas discharge burner. The disclosed LED/laser light source is retrofit from an optical point of view so that it can replace a conventional light source like an incandescent-, halogen- or gas discharge bulb or burner in an illumination device.
摘要:
A light-emitting device (1), comprising an LED-module (3) comprising at least one LED mounted on a carrier and at least one connection pad (10a-b) for electrical connection of the LED module (3), a heat dissipator (2) for dissipating heat generated by the LED when in operation, a connection board (4) comprising a substrate having a conductor pattern for enabling provision of external power to the LED module (3), an interconnecting arrangement (7a-d) comprising at least one connection spring (7a-d) attached to the connection board (4) electrically interconnecting the at least one connection pad (10a-b) of the LED module (3) with the conductor pattern of the connection board (4), and an LED-holder comprising at least one holding spring (1a-d) attached to the connection board (4) exerting a spring force there by pressing the LED-module (3) against the heat dissipator (2) to provide a thermal connection between the LED-module (3) and the heat dissipator (2). The interconnecting arrangement (7a-d) is configured to allow movement between the conductor pattern of the connection board (4) and the at least one connection pad (10a-b). The at least one connection spring (7a-d) constitutes the at least one holding spring (7a-d), to simultaneously electrically interconnect the at least one connection pad (10a-b) of the LED-module (3) with the conductor pattern of the connection board (4) and press the LED-module (3) against the heat dissipator (2).
摘要:
The invention relates to a lighting device (101) comprising a blue light source, e.g. an LED (102), combined with a wavelength converting ceramic (106) and a collimating optical component (110). The ceramic (106) is mechanically carried by the optical component (110), for example by a glue or by insert moulding. Intermediate gaps between the light source (102) and the converter (106) are preferably filled with a material like silicone.
摘要:
A lighting assembly and a lamp for a motor vehicle are described. A leadframe 14 out of a metal sheet material comprises a first part 14c and a second part 14b not directly electrically connected. An LED element 16 is fixed to the leadframe 14. A first contact part 24a is connected to the first leadframe part 14c and a second contact part 24b is connected to the second leadframe part 14b. The LED element 16 is disposed to emit light when operated. In order to achieve a desired directed emission of light in a simple way, the leadframe 14 comprises a light direction section 20a,20b including a reflective surface 30a,30b arrange to reflect the light emitted from the LED element 16.
摘要:
The application relates to light emitting devices. In order to provide good heat dissipation and easy adjustment of the lighting devices, there is provided to fix a light-emitting diode (12) having a metallic base (10) to a metallic heat-radiating element (18), which fixing comprises substance-to-substance bonding the base of the diode to a metallic sleeve (14), positioning the sleeve on the heat-radiating element such that the sleeve mantles the heat-radiating element, and connecting the sleeve with the heat-radiating element.
摘要:
The invention describes an adapter part (2, 9) for a modular lighting assembly (1) comprising a number of light-emitting diodes (4) mounted on a separate base part (3), which adapter part (2, 9) comprises a number of first electrical connectors (21) arranged to connect the light-emitting diodes (4) to an external power supply; at least one electrical component (5) arranged in a body of the adapter part (2, 9); and a number of second electrical connectors (22) arranged to connect external circuitry to an electrical component (5) arranged in the body of the adapter part (2, 9). The invention further describes a modular lighting assembly (1) comprising a base part (3) upon which a number of light-emitting diodes (4) is mounted; and an adapter part (2, 9) according to the invention. The invention also describes a method of assembling such a modular lighting arrangement (1), comprising the steps of connecting a first adapter part (2, 9) according to the invention to a separate base part (3); choosing a number of electrical components (5, 6) on the basis of an application requirement of the modular lighting arrangement (1); and arranging an electrical component (5, 6) in the adapter part (2, 9) such that an electrical connection is formed between a contact surface of the electrical component (5, 6) and a second electrical connector (22) of the adapter part (2, 9).