Optical fiber scanning device, scanning detection method and scanning display equipment

Abstract

The invention discloses an optical fiber scanning device, a scanning detection method and scanning display equipment, which are used for detecting the posture of an optical fiber in the scanning process of the optical fiber scanning device. The optical fiber scanning device comprises a shell, an actuator arranged in the shell and an optical fiber, wherein the part, which exceeds the actuator, of the optical fiber forms an optical fiber cantilever, at least one set of optical fiber detection device corresponding to the movement direction of the actuator is arranged on the inner side of the shell, each set of optical fiber detection device comprises a detection light source and a corresponding light detector, the detection light source and the light detector are oppositely arranged on the two sides of the optical fiber cantilever, the detection light source is used for emitting detection light, and the light detector is used for generating a corresponding electric signal as a detection signal for feedback according to the light received by the detection target surface; and in the scanning starting process of the optical fiber cantilever, the optical fiber cantilever discontinuously shields the detection light emitted to the light detector by the detection light source.

Description

Technical field[0001]The present invention relates to the field of display, and in particular, to a fiber scanning device, a scan detection method, and a scanning display device.Background technique[0002]The imaging principle of the optical fiber scan projection technique is to perform motion of a predetermined two-dimensional scanning track by actuator, and simultaneously modulate the light source light power, and each pixel point information to be displayed is projected onto the imaging area one by one. Projection screen.[0003]Figure 1A withFigure 1B Schematic diagram of the structure of the existing fiber scan projection system, includingFigure 1B forFigure 1A Side view. The optical fiber scanning projection system includes: processor 100, laser set 110, optical fiber scanner 120, optical fiber 130, light source modulation circuit 140, scan driving circuit 150, and a cell 160. When working, the processor 100 controls the optical fiber scanner 120 vibration scan by transmitting an...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual work of fiber optic scanners, due to factors such as interference vibration, driving fluctuations, temperature and humidity, aging fatigue, nonlinearity and other factors, the motion trajectory and state deviate from the ideal mode, so that the display image quality will degrade during long-term work. Therefore, online real-time detection and feedback compensation measures are needed to maintain high-quality display, but there is currently no better detection method

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