摘要:
Certain aspects relate to systems and techniques for color temperature analysis and matching. For example, three or more camera flash LEDs of different output colors can be used to match any of a range of ambient color temperatures in a non-linear space on the black body curve. The scene color temperature can be analyzed in a preliminary image by determining actual sensor R/G and B/G ratios, enabling more accurate matching of foreground flash lighting to background lighting by the reference illuminant for subsequent white balance processing. The current provided to, and therefore brightness emitted from, each LED can be individually controlled based on the determined sensor response to provide a dynamic and adaptive mix of the output colors of the LEDs.
摘要:
A light assembly includes a cover having an upper portion and a redirection portion. The cover has a longitudinal axis and a housing that is coupled to the cover. A lamp base is coupled to the housing. A circuit board is disposed within the housing. The circuit board has a plurality of light sources thereon. An internal redirection element is coupled to the circuit board and has a curvilinear shaped surface for reflecting a first portion of light from the plurality of light sources through the redirection portion of the cover and transmitting a second portion of light therethrough.
摘要:
A light bulb shaped lamp (100) according to the present invention includes: a hollow globe (110); an LED module (130) including a base platform (140) and an LED chip (150) mounted on the base platform (140), the LED module (130) being provided in the globe (110); a lead wire (170) for supplying power to the LED module (130); and a stem (120) extending toward the interior of the globe (110), in which the base platform (140) is directly fixed to the stem (120).
摘要:
A lighting device includes at least one light source arranged in contact with an electrically conducting layer, and mechanically secured to an electrically insulating heat sink element.
摘要:
A lighting device (10) includes an elongated profiled body (12) including at least one light permeable material, e.g. a polymeric material, having a mouth portion (12a) where an e.g. white light radiation source assembly (16) is arranged which includes one or more electrically powered light radiation sources (16b) facing said profiled body (12). The light radiation emitted by said light radiation source assembly (16) propagates through said the light permeable material of the profiled body (12). The material of the profiled body (12) includes pigments (12b) and is at least in part (12c) light diffusive, whereby, by propagating through profiled body (12), said light radiation becomes a coloured light radiation of a colour determined by the pigments and with a homogeneous near field distribution.
摘要:
The present document describes a lighting device comprising: a structure comprising a conformable elongated member being adaptable to a shape of an object for securing the lighting device to the object; a light source attached to the structure thereby defining a connection between the light source and the structure; a power source for providing electrical power to the light source; and a skin overmolded onto the structure, the power source, the connection and part of the light source near the connection. There is also described a method for providing lighting in a confined space where a hand-operated tool is used.
摘要:
A lamp (100) including a two-sided source plate (212), a plurality of light sources (214), a lens (218), a diffuser plate (206), and a driver insulator (208) is disclosed. One set (280) of the light sources (214) generates white light and is attached to one side (270) of the source plate. Another set (282) of the light sources (214) generates colored light and is attached to the source plate's other side (272). The lens (218) encapsulates the white light-generating set (280), and redirects that white light. The driver insulator (208) and the diffuser plate (206) are each in contact with the source plate's other side (272). The driver insulator (208), diffuser plate (206), and that side (272) of the source plate define a light box region (240) that contains the colored light-generating set (282) of light sources (214). The driver insulator (208) acts as a reflector, and the diffuser plate (206) acts as a diffuser, such that colored light is dispersed from the light box region (240) through the diffuser plate (206).
摘要:
Technologies for generating a broadband optical output include a plurality of narrowband optical sources formed in a silicon substrate to generate a narrowband optical output, a plurality of input optical waveguides to route the narrowband optical output, an optical multiplexer formed in the silicon substrate to reflect the routed narrowband optical output, and an output optical waveguide to collect the reflected narrowband optical output to generate the broadband optical output. The output optical waveguide may route the broadband optical output to an output of the photonic integrated circuit.