Optical framework of liquid crystal optical projection apparatus and light beam processing method of optical framework
A projection device, liquid crystal optics technology, applied in optics, projection devices, optical components, etc., can solve problems such as energy waste, damage to service life, decline, etc., achieve low cost, easy implementation, and avoid energy waste.
Inactive Publication Date: 2018-02-09
HKC CORP LTD
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Problems solved by technology
Therefore, the non-specific polarization direction part of the unpolarized light beam and the second polarization direction part of the deflected light beam are absorbed by other elements in the liquid crystal optical valve projector and generate heat energy, causing the liquid crystal optical valve The projector may be damaged or its life shortened due to overheating
Furthermore, the heat energy cannot be effectively recovered and utilized, thus causing a waste of energy
Method used
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[0046] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various embodiments. It is evident, however, that various embodiments may be practiced without these specific details, or one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various embodiments.
[0047] Unless otherwise stated, the illustrated embodiments are to be understood as providing features of varying detail in various embodiments. Accordingly, the various illustrated features, components, modules, layers, films, panels, regions and / or aspects may be further combined, separated, or otherwise described without departing from the inventive embodiments, unless otherwise stated. Swap and / or rearrange. Also, in the drawings, the size and relative sizes of layers, films, panels, regions, etc., may be ex...
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The invention provides an optical framework of a liquid crystal optical projection apparatus and a light beam processing method of the optical framework. The light beam processing method comprises thesteps of distinguishing a non-polarized incident light beam into a first light beam in a first polarized direction and a second light beam in a second polarized direction; performing deflection treatment on the first light beam and the second light beam, and combining the deflected first light beam and second light beam, wherein the sum of the deflection angle of the first light beam and the deflection angle of the second light beam is 90 degrees; distinguishing the combined first light beam and second light beam into a third light beam in a first polarized direction and a fourth light beam in a second polarized direction; and projecting the third light beam to a projector lens. By virtue of the light beam processing method, the light beam not used for projection can be recycled and can be converted into electric energy to be stored, so that the problems existing in energy waste, a light source needing to be reinforced and overheat can be avoided.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of liquid crystal optical projection equipment, in particular to an optical structure of a liquid crystal optical projection device and a beam processing method thereof. Background technique [0002] Generally, when the light beam or electromagnetic wave is not polarized, its intensity change direction is not fixed, and the aforementioned intensity change direction is also called the direction of the light beam or the polarization direction. The light beam has different polarization directions at different times, and the vector corresponding to any polarization direction can be represented by two perpendicular vectors. [0003] Existing liquid crystal optical projection devices, such as liquid crystal optical valve (Liquid Crystal Light Valve) projectors, mainly use liquid crystals to deflect light beams in a specific polarization direction, and then extract the energy of the deflected ...
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Login to View More IPC IPC(8): G03B21/20G02B27/28G03B21/00
CPCG02B27/283G03B21/006G03B21/2073
Inventor 何怀亮
Owner HKC CORP LTD