摘要:
An apparatus having a light source, a reflector, and a light pipe is disclosed. The light source includes a plurality of LED dies arranged in an array along a first direction, each LED die emitting light in a second direction. The light pipe includes a layer of transparent material having a top surface, a bottom surface, and an edge surface. The reflector reflects light from the LED dies traveling in the second direction into the edge surface of the light pipe such that a portion of the light is reflected by the top and bottom surfaces of the reflector. In one embodiment, the reflector redirects light leaving the LED dies within a predetermined cone of angles about the first direction into the light pipe such that the light in that predetermined cone of angles is totally reflected by the top surface of the light pipe.
摘要:
There is disclosed a system and method for increasing heat dissipation of LED displays by using the current PCB packaging mounted to a LCD panel support structure thereby eliminating the need for a metal core PCB. In one embodiment, reverse mounted LEDs having heat dissipation pads are used to optimize heat transfer to a metal layer which is then placed in contact with the LCD support structure.
摘要:
In an embodiment, there is disclosed an opto-electronic package, comprising a substrate, a plurality of light emitting diode (LED) dice, and at least one lens disposed between the cavity-defining walls and having a maximum height remaining within an aperture of an elongate cavity of the substrate. In an embodiment, there is disclosed a system for backlighting an LCD screen, the system comprising an opto-electronic package and a light guide. A method of manufacturing an opto-electronic package is disclosed, the method comprising fabricating a substrate, attaching a plurality of light emitting diode (LED) dice to the base of the substrate within the cavity, and disposing at least one lens between the cavity-defining walls and entirely within the aperture of the elongate cavity.
摘要:
In one embodiment, a light emitting panel includes a base panel and a plurality of light emitting elements mounted to the base panel. Each of the light emitting elements produces an illumination pattern having a region of substantially uniform intensity that extends over a radiation angle of at least about 60°. One or more light conditioners are positioned adjacent the base panel to receive and condition light produced by the light emitting elements.
摘要:
A lighting system includes multiple lighting elements, a light guide, and a first selective wavelength reflective element for mixing light outside of the light guide. The lighting elements include a first lighting element having a first wavelength. The light guide receives light from the lighting elements. The first selective wavelength reflective element is positioned between the first lighting element and the light guide to partially transmit light of the first wavelength to the light guide, and to partially reflect light of the first wavelength. Partially reflecting light away from the light guide allows a fraction of the light to be mixed with another color of light prior to entering the light guide. By mixing multiple colors of light outside of the light guide in this manner, discoloration of the LCD panel may be limited or eliminated. Additionally, oversizing the diffusion panel may be limited or eliminated.
摘要:
A virtual display with motion synchronization (“VDMS”) device using one or more arrays of light sources for displaying messages. The VDMS device may include a motion sensor to detect and measure movement of the VDMS device, and synchronization circuitry configured to synchronize the light emission of the individual light sources in the arrays with the movement of the VDMS device. The VDMS device may also include a self-contained power source and a control unit and interface that allow the user to program the messages that are displayed by the VDMS device, as well as memory that stores user messages.
摘要:
An imaging device and method for producing a flash of light utilizes pulsing of one or more color lights, e.g., red, green and blue lights, emitted from light sources to produce the flash of light. The light sources may include light emitting diode dies configured to generate different color lights.
摘要:
A light emitting device package and method for making the package utilizes a first leadframe having a first surface and a second leadframe having a second surface that are relatively positioned such that the second surface is at a higher level than the first surface. The light emitting device package includes a light source, e.g., a light emitting diode die, which is mounted on the first surface of the first leadframe and electrically connected to the second surface of the second leadframe.
摘要:
A light source that has improved light mixing. The light source uses a nanolens layer in conjunction with an LED light source to enhance the mixing of the colored light emitting from the LED light source.
摘要:
A device and method for producing an enhanced color image of a scene of interest captures a grayscale image of the scene of interest using a flash of infrared light and a color image of the scene of interest without using any flash of infrared light. The grayscale information from the grayscale image and the visible color information from the color image are combined to produce the enhanced color image.