8 results about "Image system" patented technology

The invention discloses a high-light-spectrum full-polarization detection device for interference light field imaging, comprising a prepositioned optical telescoping system, a transverse cutting interference system, a light field imaging system, an area array detector and a signal processing system, which are arranged in sequence, wherein light of a target to be detected sequentially passes through the prepositioned optical telescoping system, the transverse cutting interference system and the light field imaging system to reach to the area array detector; and the signal processing system is used for extracting a two-dimensional space image, high-light-spectrum information and a full-Strokes polarization component of the target to be detected from the area array detector. With the adoption of the detection device, light strength information of a target two-dimensional space, the full-Strokes polarization component of each point of the target, and high-resolution-ratio light spectrum information of each point of the target can be obtained by one time of measurement; and the detection device has a simple structure.

The invention provides an automatic quick focusing method for high order moment, the relation between image f(x, y) in the camera, the object g(x, y) and the point expanding function of the imaging system of the camera h(x, y) are expressed into formula 1, thus it can shoot three frames of image from three different positions, thus the focusing position of the digital camera can be determined according to the three frames of images.

The invention discloses a device for detecting the surface imperfection of a curved-surface optical element. The device comprises a lighting system and an imaging system and is characterized in that light sources are arranged in the lighting system, the imaging system comprises an imaging lens, an imaging device and a processor in signal connection with the imaging device, the light sources are arranged outside the imaging lens, and the imaging device at least comprises a coaxial imaging mechanism or a lateral imaging mechanism. The device has the advantages that on the basis of the light scattering principle, the light source evenly irradiates the surface of the curved-surface optical element, the imaging system above the curved-surface optical element detects the imaging of the curved-surface optical element, the curved-surface optical elements of different curvature radiuses can be detected, the difficulty that the surface imperfection of the curved-surface optical element cannot beautomatically detected is solved, and the device is low in cost and simple in structure.

A timing device of a radiation detection, measurement, identification and imaging system comprises high-energy photon detectors, a light pulse generator, and an optical fiber. Each high-energy photon detector comprises a scintillation crystal and a photoelectric conversion multiplying device. The high-energy photon detectors are respectively provided with a light hole. A light pulse signal is transmitted to the scintillation crystals through the light holes and then transmitted to the surfaces of the photoelectric conversion multiplying devices through the scintillation crystals, converted and multiplied by the photoelectric conversion multiplying devices, and read and processed by an electronic circuit. The mutually-independent high-energy photon detectors acquire absolute time from the light pulse signal generated by the light pulse generator, and timing and calibration are carried out between the mutually-independent high-energy photon detectors. According to the invention, the global clock is cancelled, timing is completed based on the time when the photoelectric conversion multiplying devices receive the light pulse signal, decoupling of the high-energy photon detectors is realized, the independence of the high-energy photon detectors is ensured, and the system can use or add/subtract the high-energy photon detectors more conveniently.