Projection device
A projection device and projection lens technology, which is applied in projection devices, photography, optics, etc., can solve problems such as low heat dissipation efficiency, difficulty in cooling air flow, and large space of projection devices, so as to improve heat dissipation efficiency, reduce occupied space, and overall The effect of schema shrinking
Active Publication Date: 2021-07-23
CORETRONIC
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However, such a layout will make the projection device require a larger space in the horizontal direction, so the projection device will have a larger volume.
However, in the case where the above components are compressed to reduce the size of the projection device, it is difficult for heat dissipation airflow to flow through the space between the components, and some components may thus generate high temperature and have low heat dissipation efficiency, so that the optical effect is affected while falling
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[0017] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.
[0018] figure 1 It is a schematic diagram of a projection device according to an embodiment of the present invention. figure 2 for figure 1 3D schematic diagram of the projection device. Please refer to figure 1 and figure 2 . This embodiment provides a projection device 100, including a light combination system 110, an illumination system 120, at least one light valve 130, and a projection lens 140. Wherein, the combined light system 110 is used for providing the combined light ...
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A projection device comprises a light combining system, a lighting system and a projection lens. The light combining system is used for providing light combining beams. The lighting system is arranged on a transmission path of the combined light beam and used for converting the combined light beam into a lighting beam. At least one light valve is arranged on a transmission path of the lighting light beam and is used for converting the lighting light beam into an image light beam. The projection lens is arranged on a transmission path of the image light beam and used for projecting the image light beam out of the projection device, the light combining system is located in the first layer space, and at least one light valve is located in the second layer space. The first layer space is different from the second layer space, and the first layer space and the second layer space are overlapped in the gravity direction. According to the projection device, the miniaturization of the projection device can be effectively considered, and the projection device has a good heat dissipation effect.
Description
technical field [0001] The present invention relates to a display device, and more particularly to a projection device. Background technique [0002] The projection device is a display device for producing large-scale images, and has been continuously improving with the evolution and innovation of technology. The imaging principle of the projection device is to convert the illumination beam generated by the lighting system into an image beam through a light valve, and then project the image beam to a projection target (such as a screen or a wall) through a projection lens to form a projection image. [0003] Generally speaking, the light source, light combining element, lens module, light valve element and other components are arranged at the same level in the housing of the projection device. However, such a layout will cause the projection device to require a larger space in the horizontal direction, so the projection device will have a larger volume. However, in the cas...
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IPC IPC(8): G03B21/20G03B21/16
CPCG03B21/206G03B21/16G03B21/2066G03B21/208G03B33/12G03B21/005G03B21/2013
Inventor 钟文杰郭人维廖宗信
Owner CORETRONIC