Color wheel
A color wheel and filter technology, applied in the field of color wheels, can solve problems such as shedding, deterioration of filter quality, embrittlement, etc., and achieve good heat dissipation performance
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no. 1 example
[0015] Please also refer to Figure 1 and figure 2 , the color wheel 100 of the first embodiment of the present invention includes a motor 10 , a filter 12 and a heat sink 16 . The filter 12 is then attached to the motor 10 , and the heat sink 16 is disposed around the motor 10 .
[0016] The filter 12 includes three fan-shaped areas 122 and a central hole 124 surrounded by the fan-shaped areas 122 . Each sector 122 is respectively coated with a filter film for filtering out red light, green light and blue light. Of course, the arrangement of the color filter 12 is not limited to this embodiment. The color filter 12 may be a circular filter formed by a plurality of blocks of red, green and blue, or a filter composed of red, green and blue. A circular filter formed by multiple blocks of green, blue and white transparent blocks.
[0017] The motor 10 includes a rotating shaft 102 , a shaft cover 104 , a motor body 106 and a fixing portion 14 . The shaft cover 104 is connected...
no. 2 example
[0024] see image 3 , is a schematic diagram of the color wheel 200 according to the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the heat sink 26 in the color wheel 200 of this embodiment is disposed around the motor body 106 . The radiator 26 does not rotate when the shaft cover 104 rotates around the rotating shaft 102 . At this time, the heat of the color wheel 200 is dissipated by increasing the radiating area through the fins of the radiator 26 .
no. 3 example
[0026] see Figure 4 , is a schematic diagram of the color wheel 300 according to the third embodiment of the present invention. The difference between the present embodiment and the first embodiment is that the heat sink 36 in the color wheel 300 of the present embodiment is a rotating shaft 102 disposed around the shaft center cover 104 and the filter 12 . A spacer 38 is further sleeved on the rotating shaft 102 , the spacer 38 is disposed between the filter 12 and the heat sink 36 , and the filter 12 is connected to the spacer 38 . The purpose of arranging the spacer 38 here is to make the filter 32 not contact with the heat sink 36 and then be reliable. Of course, the spacer 38 may not be provided, but an external thread is directly opened on the rotating shaft 102, and at the same time the filter is The central hole 124 of the filter 12 is provided with an inner thread, and the optical filter 12 can also be firmly fixed by screwing the inner and outer threads.
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