Single-detector optical imaging system and method based on MEMS micro scanning mirror

Abstract

The invention discloses a single-detector optical imaging system and method based on an MEMS micro scanning mirror. The system and method mainly solve the problem that an existing device is long in imaging time and limited in sensor array. The single-detector optical imaging system comprises an imaging lens, the scanning mirror, a scanning mirror driving module, a convergent lens, a single-point photoelectric sensor, an analog-digital converter and a data storage and calculation module. Target scenery is imaged on the scanning mirror through the imaging lens, the scanning mirror samples optical signals of the target scenery, the convergent lens converges the sampled signals to the single-point photoelectric sensor, the sampled signals are subjected to photoelectric conversion and analog-digital conversion so that the pixel value of a target image can be obtained, and finally the target image is obtained through a restoration algorithm. According to the single-detector optical imaging system and method based on the MEMS micro scanning mirror, the MEMS micro scanning mirror and the photoelectric sensor are adopted instead of the traditional photoelectric sensor array, the requirement for the scale of the sensor array is reduced, and the system and method can be used for carrying out three-dimensional scanning imaging on the target scenery.

Description

technical field [0001] The invention belongs to the field of imaging technology, and relates to a single-detector optical imaging system and method, which can be used for two-dimensional scanning and imaging of a target scene. Background technique [0002] Optical imaging is an important means for humans to obtain visible light, infrared light, and multispectral image information, and is widely used in astronomical observation, space reconnaissance, and resource information detection. The traditional imaging method is to use the imaging lens to image the target scene to the sensor array, and then obtain the digital signal of the image through the analog-to-digital converter. However, with the acceleration of social informatization, due to the limitations of existing materials, devices, and process conditions, traditional imaging methods are facing bottlenecks that are difficult to break through, such as sensor array manufacturing processes and massive data storage, and can n...

AI Technical Summary

Problems solved by technology

However, since the camera only uses one photoelectric sensor, each exposure can only achieve one aliasing sampling, so a large number of independent exposures are required to complete an imaging, which takes a long time

Images