Automatic focusing projector
An autofocus and projector technology, applied in the field of projection, can solve the problems of poor mobility, poor connectivity, and inability to use in places without power supply, etc., to achieve the effects of improving service life, enhancing reducing power, environmental protection and energy saving.
Inactive Publication Date: 2017-03-22
DIMOND WALKER COMMERCE CO LTD
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AI Technical Summary
Problems solved by technology
[0011] Poor connectivity, requires a cable to connect
Can not easily support the connection of personal mobile devices
[0012] Poor mobility, other display devices need an external power supply, and cannot be used in some places without power supply
[0013] In addition, the existing projectors usually need to focus manually, which is cumbersome to operate and inconvenient to use
Method used
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Embodiment Construction
[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below.
[0029] An auto-focus projector includes an ultrasonic transceiver module, a light source, an optical path system, a digital micromirror system, a control system and a power supply module, and the light source is an LED light source; the control system includes a processor circuit, a digital image drive circuit and an interface circuit , the signal output end of the interface circuit is electrically connected to the signal input end of the processor circuit, the signal input end of the digital image drive circuit is electrically connected to the signal output end of the processor circuit, the light source and the digital micromirror system The signal input end is electrically connected to the signal output end of the digital image drive circuit, and the power supply modul...
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The invention belongs to the technical field of projection, and particularly relates to a miniature projector. The automatic focusing projector comprises an ultrasonic transceiver module, a light source, a light path system, a digital micro-mirror system, a control system and a power module, wherein the light source is an LED light source; the control system comprises a processor circuit, a digital image drive circuit and an interface circuit; a signal output end of the interface circuit is electrically connected with a signal input end of the processor circuit; the signal input end of the digital image drive circuit is electrically connected with the signal output end of the processor circuit; the light source and the signal input end of the digital micro-mirror system are electrically connected with the signal output end of the digital image drive circuit; the power module provides the light source, the light path system, the digital micro-mirror system and the control system with electricity; the light path system comprises a lens; a signal port of the ultrasonic transceiver module is electrically connected with the signal port of the processor circuit; and a control port of a focusing motor of the lens is electrically connected with the control port of the processor circuit.
Description
technical field [0001] The invention belongs to the technical field of projection, in particular to a miniature projector. Background technique [0002] With the explosive development of smart mobile devices, the demand for personal portable office and entertainment is getting higher and higher. Phone screen or stand-alone use. At present, the external video equipment is mainly a traditional mercury lamp projector or other multimedia display equipment that cannot be used in a mobile way. The characteristics of these two devices cannot meet people's needs for mobile office, personal entertainment and convenient use, and also bring many problems. For example: [0003] Disadvantages of using traditional mercury lamp projectors: [0004] Short service life. The average lifespan of the light bulb is 2000 hours; based on household calculations (5 hours a day), the light bulb needs to be replaced after 1.5 years of use. The cost of replacing light bulbs is very expensive (ave...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G03B21/14G02B7/28G02B7/40
CPCG02B7/282G02B7/40G03B21/142
Inventor 吴成锦
Owner DIMOND WALKER COMMERCE CO LTD