摘要:
A lighting device, such as a replacement lighting device, comprising a light source (LS), e.g. LEDs, for producing light along an optical axis (OA). A heat sink (HS) made of a material with an electrical resistivity being less than 0.01 Ωm, e.g. a metallic heat sink being a part of the housing, transports heat away from the light source (LS). A Radio Frequency (RF) communication circuit (CC) connected to an antenna (A) serves to enable RF signal communication, e.g. to control the device via a remote control. Metallic components, including the heat sink (HS), having an extension larger than 1/10 of a wavelength of the RF signal are arranged below a virtual plane (VP) drawn orthogonal to the optical axis (OA) and going through the antenna (A). Hereby a compact device can be obtained, and still a satisfying RF radiation pattern can be obtained. The antenna can be a wire antenna or a PCB antenna, e.g. a PIFA or a IFA type antenna. In a special embodiment the antenna is formed on a ring-shaped PCB with a central hole allowing passage of light from the light source. Preferably, the antenna is positioned at least 2 mm in front of the heat sink (HS).
摘要:
A lighting device, such as a replacement lighting device, comprising a light source (LS), e.g. LEDs, for producing light along an optical axis (OA). A heat sink (HS) made of a material with an electrical resistivity being less than 0.01 Ωm, e.g. a metallic heat sink being a part of the housing, transports heat away from the light source (LS). A Radio Frequency (RF) communication circuit (CC) connected to an an antenna (A) serves to enable RF signal communication, e.g. to control the device via a remote control. Metallic components, including the heat sink (HS), having an extension larger than 1/10 of a wavelength of the RF signal are arranged below a virtual plane (VP) drawn orthogonal to the optical axis (OA) and going through the antenna (A). Hereby a compact device can be obtained, and still a satisfying RF radiation pattern can be obtained. The antenna can be a wire antenna or a PCB antenna, e.g. a PIFA or a IFA type antenna. In a special embodiment the antenna is formed on a ring-shaped PCB with a central hole allowing passage of light from the light source. Preferably, the antenna is positioned at least 2 mm in front of the heat sink (HS).
摘要:
The invention relates to an illumination system, a luminaire and a display-device (200) comprising the illumination system. The illumination system (100, 101) comprises a light emitting diode (D1, D2), a light exit window (105) and a luminescent layer (120) arranged between the light emitting diode and the light exit window. The light emitting diode emits light of a first primary color (72, 75). The luminescent layer is arranged between the light emitting diode and the light exit window for converting part of the light emitted by the light emitting diode into light of a second primary color. The luminescent layer comprises a garnet luminescent material comprising at least Lutetium, Cerium, Silicon and Nitrogen (73), or it comprises a combination of a garnet luminescent material comprising at least Lutetium and Cerium (70) and a garnet luminescent material comprising at least Cerium and at least one element of the group comprising Yttrium and Gadolinium (71, 74). The light exit window emits light generated by the illumination system towards the display device.
摘要:
The present invention relates to a light emitting device 100 which employs light sources 102 having a narrow or limited light intensity distribution, and which device is arranged for redistributing the light from the light sources and outputting a light with a broader spatial light intensity distribution via a circumferential light output surface 115 arranged on a funnel-shaped light output portion 112. The light emitting device further comprises a light mixing portion 120 for mixing the light emitted from the light sources 112 before entering into the light output portion 112.
摘要:
The invention provides a car lighting unit (1) comprising a reflector (10) and a light source (20) arranged to generate light (21). The reflector (10) circumferentially surrounds the light source and the reflector has a reflector opening (11). The reflector is arranged to reflect at least part of the light from the light source through the reflector opening. The car lighting unit further comprises a 3D hologram (30). The car lighting unit is constructed to generate a beam of light (22) and a holographic 3D image (31), using light from the light source (20).
摘要:
A translucent wall element comprising a first plate-like member (1) of a transparent material and a second plate-like member (2) of a translucent material positioned at the outer side of said first plate-like member (1) substantially parallel to said first plate-like member. Means for coupling light into said first plate-like member are present. The surface (7) of said first plate-like member (1) is provided with spots of light-distribution means (8) at the side facing the second plate-like member (2). The light-distribution means (8) direct light radiation towards the other side of said first plate-like member (1).
摘要:
The invention relates to a motor vehicle lighting fixture which comprises at least: a light source comprising at least one LED; a light-transmitting part that is arranged such that it receives light from the light source; and a reflector that is arranged such that it reflects that portion of the light from the light source that passes through the light-transmitting part and couples it out to the front of the lighting fixture, a reflection portion and a refraction portion being provided within the light-transmitting part, wherein said reflection portion deflects the light issuing from the light source through total reflection in one direction that is substantially perpendicular to the optical axis of the reflector, whereas the refraction portion couples out the light in the direction of the reflector.
摘要:
A luminair and a display device including a light emitting diode, a light exit window and a luminescent layer arranged between the light emitting diode and the light exit window. The light emitting diode emits light of a first primary color. The luminescent layer is arranged between the light emitting diode and the light exit window for converting part of the light emitted by the light emitting diode into light of a second primary color. The luminescent layer includes a garnet luminescent material of one of at least Lutetium, Cerium, Silicon and Nitrogen, or a combination of a garnet luminescent material of at least Lutetium and Cerium and a garnet luminescent material of at least Cerium and at least one of Yttrium and Gadolinium.
摘要:
The present invention relates to a light emitting device 100 which employs light sources 102 having a narrow or limited light intensity distribution, and which device is arranged for redistributing the light from the light sources and outputting a light with a broader spatial light intensity distribution via a circumferential light output surface 115 arranged on a funnel-shaped light output portion 112. The light emitting device further comprises a light mixing portion 120 for mixing the light emitted from the light sources 112 before entering into the light output portion 112.
摘要:
The invention relates to a lamp for vehicles with at least one main light source (2) which in the active operating state of the lamp emits primary light, with at least one light out-let opening (6) and with at least one translucent body (3) arranged in the beam path of the primary light, where into the translucent body or bodies (3) in the active and/or inactive operating state of the at least one main light source (2) can be coupled also secondary light which is emitted by at least one secondary light source (5), and the secondary light can be coupled into the translucent body (3) not parallel to the beam path of the primary light.