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68 results about "Light Work" patented technology

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Method for determining red-light running of vehicles at intersection based on video detection and signal control system

The invention discloses a method for determining red-light running of vehicles at an intersection based on video detection. On the basis of the conventional red-light running capturing system, a group of cameras are added and used for acquiring videos in which the vehicles on an entrance lane of the intersection approach to a stopping line; a vehicle tracking detection area is arranged on a lane which is positioned behind the stopping line of the entrance road of each intersection by a certain distance and used for tracking all vehicles in the vehicle tracking detection area; when a yellow light works, if part of a certain vehicle crosses the stopping line, the yellow light continuously works for one second to make the vehicle completely cross the stopping line before the yellow light stops working; the running state of the vehicles in the detection area is re-determined in one or two seconds before the yellow light stops working; and if a certain vehicle runs a red light and keeps running forward, the turn-on time of a green light in the next phase is delayed in real time, and a red-light running capturing system is started to capture an image of red-light running of the vehicle and obtain evidence.
Owner:SHANGHAI MARITIME UNIVERSITY

Body automatic sensing LED light

The invention discloses a body automatic sensing LED light which is invented for solving the problems of high energy consumption, separation of incandescent bulbs and switches and the like in the prior art. The body automatic sensing LED light comprises a light holder, a shell and at least one LED luminous tube; a circuit board is arranged in the shell; an aluminum base plate is connected to the lower side of the circuit board; a circuit assembly is arranged on the circuit board; a pyroelectricity infrared sensor and a photodetector are arranged on the bottom surface of the aluminum base plate; the LED luminous tubes are all arranged on the bottom surface of the aluminum base plate; and a lens is arranged under the pyroelectricity infrared sensor. With the structure, the body automatic sensing LED light is switched in a commercial power 220V lamp holder, a circuit is rectified and filtered by an effective electronic transformer; a sensing signal is combined with the photodetector after being subjected to coupling signal processing, voltage amplification and shaping so as to realize the breakthrough of 90 percent of the commercial power conversion efficiency, large illumination, long service life and static micropower consumption. When the light is turned off when meeting the environment illumination in the day light, the light cannot turn on even if people moves in a light movement area; when no light is emitted at night, people can automatically trigger and turn on the light and the light is turned off in a delay way when people leaves, and the light works in cycles. The invention has the advantages of economical efficiency, practicability, environmental protection and energy conservation.
Owner:侯山春

Bluetooth electronic cigarette lighter and use method thereof

InactiveCN104713126AAchieve anti-lost effectIncandescent ignitionElectricityLED display
The invention relates to a Bluetooth electronic cigarette lighter and a use method thereof. The cigarette lighter is mainly composed of an MCU control module, an LED display lamp, a buzzer, a Bluetooth module, an electric heating device, a battery module and a button. The MCU control module can control the electric heating device to work, control the buzzer to make a sound and control the LED display lamp to emit light, and receives and processes a control signal transmitted by the Bluetooth module or transmits a signal to a mobile phone or other devices with a Bluetooth device through the Bluetooth module. When the cigarette lighter is used for lighting a cigarette, a cigarette lighting working signal can be transmitted to the mobile phone or other devices, and in cooperation with the positioning and timekeeping functions of the mobile phone or other devices, the cigarette lighting time, cigarette lighting frequency and cigarette lighting place data of a user can be obtained. The mobile phone or other devices can control the cigarette lighter to work and allow the cigarette lighter to light the cigarette or not. When the cigarette lighter and the mobile phone or other devices can not detect signals of the other party, the sound can be made or the light can be emitted to warn the user that the user forgets the cigarette lighter.
Owner:罗震威

High resolution visible light/near infrared common optical path optical system

The invention relates to a high resolution visible light / near infrared common optical path optical system. The high resolution visible light / near infrared common optical path optical system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a detector focal plane which are arranged co-axially from the object side to the image side successively, wherein the surface, being close to the object side, of the second lens is a harmonic diffraction surface. The optical system can realize double wave band: a 0.4 to 0.7Mum visible light working wave band and a 0.7-1.2Mum short wave infrared working wave band, and does not set independent sub systems for the visible light and the infrared light. The high resolution visible light / near infrared common optical path optical system only needs one system and only needs one optical path to realize observation of the visible light and the infrared light, so that the identification efficiency of the target is improved and the false alarm rate is reduced. The high resolution visible light / near infrared common optical path optical system is high in resolution, wherein the highest resolution can be 1280*1024. The high resolution visible light / near infrared common optical path optical system skillfully introduces a harmonic diffraction lens into the design of the optical system, and can satisfy the imaging requirement and the aberrations correcting requirement for the system in two wave bands, and is high in aberrations elimination performance.
Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC

Air mouse applied in interactive electronic whiteboard

The invention discloses an air mouse applied in an interactive electronic whiteboard of multimedia teaching devices. The air mouse comprises a housing; a laser head, a power control module, a photoelectric rotary encoder, a wireless signal transmitting module and a power supply are installed inside the housing. The power supply is connected with the laser head, the photoelectric rotary encoder and the wireless signal transmitting module through a power supply switch; the output end of the power control module is connected with the laser head and the wireless signal transmitting module; the output end of the photoelectric rotary encoder is connected with the wireless signal transmitting module; part of a pulley is positioned inside the housing and the other part of the pulley protrudes from the housing to the outside; the resistance value of the power control module increases or decreases by rotating the pulley; the laser head has a weak light work state and a strong light work state; the moving status of the pulley is detected and encoded by the photoelectric rotary encoder; detected and encoded signals are sent by the wireless signal transmitting module in the form of wireless signals; only a pulley is used as a function key which makes the air mouse flexible to operate; by means of the air mouse, writing and drawing can be performed remotely and in a contactless mode.
Owner:江苏大学扬州(江都)新能源汽车产业研究所

Off-axis three-reflex optical system with 350mm aperture, 1778.9mm focal length and 0.4-5mu m wave band

ActiveCN109188666ANo increase in processing difficultyIncrease processing costOptical elementsWave bandLight Work
The invention relates to an off-axis three-reflex optical system with a 350mm aperture, a 1778.9mm focal length and a 0.4-5mu m wave band, belonging to the technical field of target simulation. The existing off-axis three-reflex optical system has a small aperture and short focal length and lacks a visible light working wave band. The off-axis three-reflex optical system is characterized in that aprimary mirror and a third mirror are high-order aspheric reflectors with square apertures, a secondary mirror is a spherical reflector with a round aperture, the primary mirror is a positive refractive power reflector, and has a -2980mm curvature radius, a 560mm*570mm light aperture, and 410mm off-axis amount, the secondary mirror is a negative refractive power reflector, and has a -2000mm curvature radius and a 81mm light aperture, the third mirror is a positive refractive power reflector, and has a -3613.9mm curvature radius, a 1000mm*1010mm light aperture and a -846mm off-axis amount, a distance between a curvature center of the primary mirror and a curvature center of the secondary mirror is 2650mm, a distance between a curvature center of the secondary mirror and a curvature centerof the third mirror is 2928.4mm, and the off-axis three-reflex optical system has a 350mm aperture, a 1778.9mm focal length and a 0.4-5mu m working wave hand.
Owner:CHANGCHUN UNIV OF SCI & TECH

Lighting device

The invention is applicable to the field of lighting devices and discloses a lighting device which comprises a lamp casing assembly and a lighting construction member. The lamp casing assembly comprises a casing and a transparent piece, a cavity is fixedly connected with and formed between the casing and the transparent piece detachably, the quantity of the lighting construction member is at least two, and at least one illumination sensor is further arranged in the lamp casing assembly. A light reflection construction member is fixedly arranged in the lamp casing assembly, the illumination sensor is arranged in the center of the light reflection construction member, and the lighting construction member is arranged at the position of the light reflection construction member and located around the illumination sensor. The illumination sensor is arranged in the center of the light reflection construction member, light work and rest of the environment is converted into electrical signals through the illumination sensor to control opening quantity of the lighting construction member, luminance of the lighting device can be automatically regulated according to ambient light, energy consumption waste is avoided while guaranteeing lighting effects, and degree of automation is high.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Device for measuring voltage difference between LED string lights

The invention relates to measurement devices and discloses a device for measuring the voltage difference between LED string lights. According to the device for measuring the voltage difference between the LED string lights, the voltage difference between the LED string lights when the LED string lights work can be detected rapidly, so that the production yield of a production line is increased, and the reliability of products is guaranteed. The device for measuring the voltage difference between the LED string lights comprises a voltage following circuit unit, a voltage distribution unit, an analog-digital converter, a signal processor, an analog-digital converter and a same-phase proportional operational amplifier unit, wherein the voltage following circuit unit, the voltage distribution unit, the analog-digital converter, the signal processor, the analog-digital converter and the same-phase proportional operational amplifier unit are connected in sequence, the input signal of the voltage following circuit unit serves as the negative-electrode voltage of the LED string lights, the output signal of the voltage following circuit unit enters the corresponding analog-digital converter after voltage distribution is conducted on the output signal through the voltage distribution unit, the voltage obtained through analog-digital conversion is input into the signal processor, so that maximum voltage and minimum voltage distinguishing and difference value calculating are conducted, an analog signal is obtained through conversion of the corresponding analog-digital converter, the output signal of the corresponding analog-digital converter is connected to the input end of the same-phase proportional operational amplifier unit, and the output value obtained after signal amplification is the voltage difference between the maximum value and the minimum value of a target voltage. The device is suitable for voltage testing of the LED string lights.
Owner:BVCH OPTRONICS SICHUAN

Laser dual-modulation reflection spectrum detection system based on microscope

The invention discloses a laser dual-modulation spectrum system based on a microscope. The laser dual-modulation spectrum system comprises a single-mode optical fiber, an imaging amplification system, a semi-transmittance semi-reflection sheet, a laser beam expanding system, a low-frequency chopper, a laser device, a microscope system and a high-frequency chopper. Laser dual-modulation reflection spectrum measurement on a nano material is carried out in the manner that according to a laser dual-modulation working theory, a white light source modulated by the high-frequency chopper serves as detection light after passing through a microscope lighting system; after being subjected to beam expanding, laser modulated by the low-frequency chopper is used as pumping light; the detection light and the pumping light work on the surface of a sample after passing through a same microscope objective; the single-mode optical fiber serving as a field diaphragm is arranged at a secondary amplified image surface; under motor control, bi-dimensional scanning is carried out on a sample surface to acquire a relevant optical signal. The laser dual-modulation spectrum system based on the microscope can be used for carrying out spectrum detection on a nano level region, is capable of eliminating interference of background reflection light effectively and can be applied to measurement on an optical characteristic spectrum in the micro-nano optical field.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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