10 results about "Light detection" patented technology

The invention discloses a multiplication type organic photoelectric detector with narrowband and broadband optical detection capabilities. The multiplication type organic photoelectric detector comprises a transparent substrate, a transparent anode arranged on the transparent substrate, an anode modification layer arranged on the transparent anode, an active layer arranged on the anode modification layer, and a semi-transparent metal cathode arranged on the active layer, wherein the semi-transparent metal cathode is one of aluminum, silver and gold, and the thickness is 10-30 nanometers. The invention also discloses a preparation method of the multiplication type organic photoelectric detector. According to the multiplication type organic photoelectric detector, double incident windows areprovided, a single device can realize narrowband and broadband optical detection, and the weak light detection capability is great.

A high-isolation voltage electric-light-electric isolation structure comprises a light source chip and a light detection chip which are arranged by being opposite in position; the space between the light source chip and the light detection chip and the space around the light source chip and the light detection chip are filled by insulation light guide glue; the innovative points are that a light guide tube is arranged between the light source chip and the light detection chip; an inner hole of the light guide tube, the light source chip and the light detection chip are arranged by being aligned; insulation light guide glue is injected in the light guide tube of which the dielectric strength is greater than that of the insulation light guide glue. The high-isolation voltage electric-light-electric isolation structure has the beneficial effects that the problem that the light quantity reaching the light detection chip is reduced because of the rising of an isolation voltage is solved, and the electric-light-electric isolation structure can obtain the larger isolation voltage.

The invention belongs to the field of optics, and discloses a double-beam laser Doppler velocity measurement system adopting a phase modulator. The double-beam laser Doppler velocity measurement system comprises an infrared semiconductor laser, a red light indicating semiconductor laser, a coupler, the phase modulator, a first collimating lens, a second collimating lens, a receiving lens and an infrared light detector, wherein the infrared semiconductor laser and the red light indicating semiconductor laser are connected with one end of the coupler by means of optical fibers respectively, theother end of the coupler is connected with the phase modulator by means of an optical fiber, the phase modulator divides conducted infrared laser into two uniform paths, the two paths of infrared laser are conducted to the front end of the first collimating lens and the front end of the second collimating lens by means of optical fibers respectively, and light reflected by a moving object is focused to the infrared light detector by means of the receiving lens. The double-beam laser Doppler velocity measurement system solves the problems of complex technology and high cost of an original velocity measurement system adopting an acousto-optic frequency shifter for frequency shift.

The invention relates to the field of optical detection equipment, in particular to multiband beacon optical detection equipment. The detection equipment comprises a signal light channel, a fine aiming mirror arranged in the signal light channel, a first beam splitter, a second beam splitter, a first detection device, a second detection device and a communication assembly, capturing and tracking of wide-beam signal light are achieved through a first detection device, and after being reflected by a fine aiming mirror, a first light splitting piece and a first light filter, an externally-transmitted beacon light beam is focused to a first detector through a first lens set to be imaged; narrow-beam signal light is captured and tracked through a second detection device, and an external signal light beam is reflected by a fine aiming mirror, transmitted by a first light splitting piece and transmitted by a second light splitting piece and then is focused to a second detector through a third lens group to be imaged. And capturing and tracking of multi-band signal light are realized. When the narrow-beam signal light is captured and tracked, a wide-beam signal light path of a transmitting end and a detection receiving end path are closed, so that the power consumption is effectively reduced.

The invention discloses an artificial intelligence image diagnosis system. The system comprises a touch remote controller, an image collection X-ray machine and a machine head sensing detection assembly; the machine head sensing detection assembly is glued and fixed on the front surface of the image collection X-ray machine; and the machine head sensing detection assembly is mainly composed of a main control unit, a power supply module, a distance measuring sensor, a light intensity sensor, a gyroscope, an acceleration sensor and a Bluetooth communication module. In the actual operation process, interference factors caused by image collection can be rapidly removed by the aid of auxiliary assemblies, and rapid angle adjustment and rapid adjustment of the light intensity and the cleanlinessof a light detection end are realized on the whole, so that the uncertainty in the recognition process is reduced, and the recognition accuracy is improved; meanwhile, a local threshold value is subjected to self-adaptive calculation by using contrast information of an edge region, so that relatively low-contrast foreground information can be reserved while noises are suppressed; and a low-quality image can be effectively processed.