Patent application number | Description | Published |
20130063704 | METHOD AND APPARATUS OF WHITE BALANCE ADJUSTMENT - A white balance adjustment method and apparatus for a single DLP projector system is disclosed. The projection system includes a solid state light source device, a sync signal generator, and a controller. The light source device generates an output which is a repeating color sequence of at least two primary color lights. The sync signal generator generates a synchronization signal representing a timing of the color sequence of the output light. The controller calculates drive current values corresponding to each of the two primary colors based on a target white balance and measured color properties of the output light, and supplies a modulated drive current to the light source device. The modulated drive current is synchronized to the sync signal and has the calculated drive current values. As a result, a white light having the target white balance is output. | 03-14-2013 |
20130075633 | Method and Apparatus of Drive Currents Control Over a Solid State Light Source - A solid state light source module includes two solid state light sources, a light combining device for combining the lights from the two sources, a color wheel receiving the combined light and alternatingly outputting at least two primary color lights, a sync signal generator coupled to the color wheel for generating a periodic sync signal, and a controller for supplying a drive signal to each solid state light sources based on the sync signal. During at least one sub-period of the period, one of the two solid state light sources is turned on by its drive signal and the other one is kept in an inactive state by its drive signal. | 03-28-2013 |
20130100639 | HIGH LUMINANCE MULTICOLOR ILLUMINATION DEVICES AND RELATED METHODS AND PROJECTION SYSTEM USING THE SAME - An illumination device and a projection system using the same. The illumination device includes two or more color channels each including one or more light sources for generating a color light. At least one of the color channels includes light sources of a first type for generating a first (narrow band) light and light sources of a second type for generating a second light. The dominant wavelengths of the first and second lights are within 50 nm of each other, and the width of the combined spectrum (sum of normalized spectra of the first and second lights) is greater than the width of the spectrum of the first light by at least 10 nm. A wavelength-based light combiner is used to combine the color lights from the color channels into a combined light | 04-25-2013 |
20130100644 | LIGHT SOURCES SYSTEM AND PROJECTION DEVICE USING THE SAME - This invention provides a light source system and a projection device. The light source system includes an excitation light source for generating a excitation light, a wavelength conversion device, a supplemental light source for generating a supplemental light, a light introducing device for directing the supplemental light to the wavelength conversion device, a light collection device for collecting the supplemental light that scattered and reflected by the wavelength conversion device. By setting the relative sizes of the light introducing device and the light collection device, the luminous flux of the supplemental light that is lost due to the light introducing device is less than or equal to a quarter of that the luminous flux of the supplemental light collected by the light collection device. The converted light is supplemented by the supplemental light. | 04-25-2013 |
20130242533 | METHOD AND APPARATUS FOR A COLOR FILTER - A method and apparatus for a color filter that utilizes a wavelength conversion material such as phosphor to filter an input light. The input light contains unwanted shorter wavelength light and wanted longer wavelength light. The wavelength conversion material converts the light in the unwanted shorter wavelength range to the wanted longer wavelength range, and transmits the light in the wanted longer wavelength range, to generate an output light in the longer wavelength range. The filter may be a transmissive type of a reflective type. The filter may be constructed as a moving filter such as a rotating wheel. | 09-19-2013 |
20130250546 | LIGHT SOURCE - A light source comprising an excitation light source ( | 09-26-2013 |
20130258639 | PROJECTION SYSTEM, LIGHT SOURCE SYSTEM AND LIGHT SOURCE ASSEMBLY - Provided is a projection system, a light source system, and a light source assembly. The light source system ( | 10-03-2013 |
20140240677 | LIGHT SOURCE, LIGHT COMBINING DEVICE, AND PROJECTION DEVICE WITH THE LIGHT SOURCE - A light source comprises a light combining device for guiding incident light from a first light emitting source ( | 08-28-2014 |
20140240977 | LIGHT SOURCE SYSTEM AND LASER LIGHT SOURCE - Disclosed are a light source system and a laser light source ( | 08-28-2014 |
20150023012 | LIGHT SOURCE AND DISPLAY SYSTEM - Disclosed are a light source and a display system. The light source comprises at least one original light emitting device group ( | 01-22-2015 |
20150062903 | LIGHT EMITTING DEVICE AND PROJECTION SYSTEM ADOPTING SAME - A light emitting device and a projection system adopting same. The light emitting device ( | 03-05-2015 |
20150077974 | HIGH RECYCLING EFFICIENCY SOLID STATE LIGHT SOURCE DEVICE - A light source device includes a LED light source or a wavelength conversion material having a near Lambertian light emitting surface. The light source device includes a light recycling system to reflect small-angle lights (lights closer to the normal direction of the light emitting surface) back to the light source, and a collection system for collecting and outputting large-angle lights (lights farther away from the normal direction). The lights reflected by the light recycling system is scattered by the emitting surface in all directions, where the large-angle scattered lights are collected by the light collection system and the small-angle scattered light is reflected by the light recycling system again. A second excitation light source without wavelength conversion material or a second light source with its own wavelength conversion material may be provided, and the second light is directed to the light emitting surface by appropriate optical components. | 03-19-2015 |