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508results about How to "Avoid position deviation" patented technology

Light source device and projection system

The invention provides a light source device. The light source device comprises a first light source, a fly's-eye lens pair, a light guiding system and a wavelength conversion device. The first lightsource emits first exciting light which is subjected to light averaging through the fly's-eye lens pair and then irradiates the light guiding system. The light guiding system guides the first excitinglight to the wavelength conversion device. The wavelength conversion device comprises a wavelength conversion section and a reflection conversion. The wavelength conversion section absorbs the firstexciting light and emits excited light. The first exciting light obliquely irradiates the reflection section and is reflected, so second exciting light is formed. The light guiding system is also usedfor collecting excited light and the second exciting light, and guiding the excited light and the second exiting light to be emitted along an emission light channel. The light guiding system comprises a light path assembly arranged on a second exciting light path used for reflecting the second exciting light and allowing the main optical axis of the second exciting light to coincide with the mainoptical axis of the excited light. The fly's-eye lens pair comprises a first lens array and a second lens array, arranged in the direction of the first exciting light. Lens units for forming the first lens array carry out overlapping imaging on the surface of the wavelength conversion device.
Owner:APPOTRONICS CORP LTD

Backlight module

The invention provides a backlight module. The backlight module comprises a back panel, a light guide panel, a fluorescent device, a cover, a reflector and a positioning part, wherein the back panel is provided with a bottom plate and a side wall connected to the bottom plate; the light guide panel is configured on the bottom plate, and is provided with an emergent roof and an incident side surface adjacent to the emergent roof; the fluorescent device is configured on the bottom plate and positioned between the incident side surface and the side wall, and comprises a heat radiating block and a fluorescent part, the heat radiating block is fixed on the bottom plate and a fluorescent part is configured on the heat radiating block and is suitable for emitting light towards the incident side surface; the cover is provided with a roof and a side part connected to the roof which is configured on the emergent roof and the fluorescent device and covers partial emergent roof; the side part and the side wall are arranged oppositely; the reflector is configured between the roof and the emergent roof and between the roof and the heat radiating block; a positioning part is fixed on the roof, and is inserted into the heat radiating block through the reflector; and the positioning part of the backlight module plays a role in positioning the reflector so as to prevent the reflector from displacing or falling.
Owner:AU OPTRONICS CORP
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