Optical imaging system and ultra-high frame rate imaging method based on beam splitting prism

Abstract

The present invention is an optical imaging system based on a beam splitting prism and an ultra-high frame rate imaging method, including an optical system and a detector assembly; the optical system contains a beam splitting prism; The prism splits the light, and finally images are formed on multiple detector components, and at the same time, multiple detector components are controlled to expose in sequence to achieve high frame rate imaging of the scene; there are multiple beam-splitting prisms inside the optical system, and the beam passes through each beam-splitting prism. The eight imaging light paths formed behind the prisms are identical. The invention solves the contradiction between high resolution and frame frequency, and the system has the characteristics of high frame frequency, high resolution, compact structure, excellent imaging, convenient use, and strong environmental adaptability.

Description

technical field [0001] The invention belongs to the technical field of high-speed photography, and relates to an optical imaging system based on a dichroic prism and an ultra-high frame rate imaging method. Background technique [0002] High-speed photography technology is an effective method to study the motion of high-speed objects. Compared with traditional photography, high-speed photography has high time resolution ability and can track and record the rapid change process. At present, high-speed photography has been widely used in industries and fields such as physics, biology, medicine, military affairs, and sports. Kinetics, gymnastics and other aspects play an extremely important role. [0003] Traditional high-speed cameras can achieve a very high frame rate, but most of them use film as the photosensitive element, and the system has scanning moving parts, which not only makes the system bulky, but also limits its application range. There is a restrictive relation...

AI Technical Summary

Problems solved by technology

[0003] Traditional high-speed cameras can achieve very high frame rates, but most of them use film as the photosensitive element, and the system has scanning moving parts, which not only makes the system bulky, but also limits its application range

There is a restrictive relationship between the frame rate and resolution of digital high-speed cameras. High resolution will inevitably lead to a decrease in frame rate. Generally, the frame rate is low, only a few hundred to several thousand frames, which is difficult to meet the requirements for resolution and resolution in practical applications. The need for higher frame rates

The traditional ultra-high-speed framing imaging system mostly uses the receiving system of ICCD or image intensifier as the photodetector. This kind of imaging device has low resolution and large pixel size, which makes it difficult to obtain clearer and more delicate information of the target.

Images