Optical fiber scanning projection device and electronic equipment

Abstract

The invention relates to the technical field of optical imaging, in particular to an optical fiber scanning projection device and electronic equipment. The optical fiber scanning projection device includes an optical fiber scanning projection assembly, a controllable light steering assembly and a position sensitive detector; and the optical fiber scanning projection assembly is used for outputtingscanning beams, the controllable light steering assembly is used for steering the scanning beams output by the optical fiber scanning projection assembly, and the scanning beams output by the opticalfiber scanning projection assembly are projected onto the position sensitive detector or the required imaging position; and the position sensitive detector is used for detecting the trajectory of theincoming scanning beams. According to the optical fiber scanning projection device and the electronic equipment, the scanning beams output by the optical fiber scanning projection assembly are projected onto the position sensitive detector or the required imaging position through the controllable light steering assembly, during projection imaging of the optical fiber scanning projection device, all the scanning beams output by the optical fiber scanning projection assembly are used for scanning imaging, and the energy utilization rate of imaging light is increased.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to an optical fiber scanning projection device and electronic equipment. Background technique [0002] The optical fiber scanning projection assembly generally includes a scanning driver, an optical fiber and an angle amplifier. The projection principle is generally: the scanning driver bends and vibrates under the excitation of alternating electrical or electromagnetic signals, thereby driving the optical fiber fixed on its section to vibrate, so that the optical fiber end face The position forms a small-sized scanned image, and the small-sized scanned image is magnified and projected after being passed through an angle amplifier, so as to form a projected image to be displayed. [0003] Vibrating mechanical components, such as optical fibers, are easily affected by environmental disturbances, causing their vibration state to change. Compared with the vibration of optical f...

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Problems solved by technology

[0005] In the prior art, part of the imaging light emitted by the scanning fiber can be split to PSD (Position Sensitive Detector, Position Sensitive Detector), so as to detect the light spot trajectory emitted by the scanning fiber through the PSD, but the light emitted by the scanning fiber is used to display imaging , splitting part of the imaging light to PSD for scanning fiber motion trajectory detection will reduce the energy of the light used for imaging and reduce the utilization rate of light energy

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