| APPOTRONICS CORPORATION LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120120120 | LIGHT SOURCE, CONTROL METHOD FOR LIGHT SOURCE, AND PROJECTION SYSTEM HAVING LIGHT SOURCE - A light source includes a first light emitting source ( | 05-17-2012 |
| 20120068630 | LIGHT SOURCE, WAVELENGHT CONVERSION METHOD, WAVELENGHT CONVERSION DEVICE, AND SYSTEM FOR LIGHT SOURCE - A light source device includes a light emitting element and a wavelength conversion device. The wavelength conversion device includes a stationary member, a moveable carrier made of a transparent material carrying one or more wavelength conversion materials and moveable relative to the stationary member, and a stationary first filter. The first filter is fixed on the stationary member and disposed adjacent the moveable carrier. The excitation light from the light emitting element passes through the first filter and illuminates the wavelength conversion materials on the moveable carrier. The wavelength conversion materials convert the excitation light into converted light as the output of the light source device. The size of the first filter is smaller than the size of the moveable carrier and smaller than a carrying area of the moveable carrier that carries the wavelength conversion material. A wavelength conversion method using the wavelength conversion device is also described. | 03-22-2012 |
| 20110249436 | HIGH BRIGHTNESS ILLUMINATION DEVICE USING DOUBLE-SIDED EXCITATION OF WAVELENGTH CONVERSION MATERIALS - An illumination devices using excitation light and a wavelength conversion material to generated converted light for illumination, where the wavelength conversion material is excited by multiple excitation lights from both sides to achieve increased brightness. The excitation lights incident on the two sides of the wavelength conversion material may have the same color or different colors. Light separation structures are provided on both sides of the wavelength conversion material to separate the excitation light and the converted light. Light separation may be based on color difference or etendue difference of the excitation light and converted light. In one particular example, wavelength conversion material is formed on a surface of an LED which acts as the first excitation light source, and a second excitation light is delivered through a light separation structure onto the other side of the wavelength conversion material. | 10-13-2011 |
