Infrared interactive remote control device and projection system using same
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Dec 31, 2012
filing date -
Dec 31, 2012
priority date (Note) -
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Abstract
Provided are infrared interactive remote control devices and projection systems using same, which can distinguish an indication state and an interactive control state. A pattern disc rotatable around a rotating shaft is provided in the infrared interactive remote control device. In a normal state, a visible light source works independently, and indication pattern holes in the pattern disc are positioned on an optical path to allow visible light to pass through, so that indication light spots corresponding to the indication pattern holes are formed. When a control button is pressed down, the visible light source and an infrared light source work together, and the pattern disc is driven to rotate, so that the control pattern holes are positioned on the optical path to allow the visible light to pass through, and control light spots corresponding to the control pattern holes are formed to indicate an interactive control state.
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