52 results about "Optical radar" patented technology

The invention relates to an orthoptic synthetic aperture laser imaging radar. The orthoptic synthetic aperture laser imaging radar comprises a laser light source, a transmission polarization beam splitter, a horizontal polarization optical path beam deflector, a horizontal polarization optical path transform lens, a vertical polarization optical path beam deflector, a vertical polarization optical path transform lens, a transmission polarization beam combiner, a transmitter telescope ocular, a transmitter telescope primary lens, a receiver telescope, a receiving polarization beam splitter, a 2 * 490 DEG optical bridge, an inphase channel balanced detector, an inphase channel A / D (analogue / digital) converter, a 90 DEG of phase shift channel balanced detector, a 90 DEG of phase shift channel A / D (analogue / digital) converter, a pluralizing processor, a digital image processor and a control computer. The orthoptic synthetic aperture laser imaging radar automatically eliminates phase changes and interference of atmosphere, motion platforms, optical radar systems and speckles, has high resolution imaging in larger optical footprint and larger receiving aperture, does not need optical delay lines, does not need real-time beat frequency signal phase synchronization, does not have shadows during imaging, and can be used for various lasers with single-module and single-frequency properties.

The invention relates to a method for testing lightwave transmission characteristics in an atmospheric channel, which belongs to the technical field of optics and is used in fields such as wireless optical communication, optical radar and the like. A testing system which comprises a laser emission subsystem, a receiving subsystem and a data processing subsystem is set up, wherein the receiving subsystem comprises two independent receiving light paths: one is a Fresnel screen receiving light path which consists of a Fresnel lens, a field lens and a No. I digital camera and is used for testing attenuation, drift and extension; and the other is an arrival angle fluctuation receiving light path which consists of a receiving lens and a No. II digital camera and is used for testing arrival angle fluctuation. The invention only adopts one set of testing system to carry out the testing of four types of turbulence effects and an attenuation effect, thus having great significance in reducing the number of hardwares needed by the testing of the atmospheric turbulence effects and the attenuation effect, reducing the number of testers, expenditure and period, realizing the miniaturization, light weight and low power consumption of the testing system and implementing quick, convenient and overall lightwave transmission characteristic tests.

The invention discloses a laser radar sensing illumination system comprising a laser radar scanning device, a control center and an illuminating lamp. The laser radar scanning device comprises a laser emission module and a laser reception module. The control center comprises a master control circuit module and a PLC controller. The laser radar sensing illumination method comprises the following steps: an optical radar scanning device scans in the monitoring area and sends the scanning data to the master control circuit module; the master control circuit module receives the scanning data, obtains the distance of a monitoring target through calculation, and sends the distance information of the monitoring target to the master control circuit board; the PLC controller receives the monitoring target distance information and judges whether there is a moving object in the monitoring area according to the distance information, and sends a starting instruction to a lighting lamp if the PLC controller detects that there is a moving object in the monitoring area; and the lighting lamp receives the starting instruction of PLC controller and turns on the circuit lighting. Noise pollution due to sound control illuminating lamps can be eliminated, and convenience and rapidness are realized.

The invention provides a photoreceptor, a flight time measuring device, and an optical radar. The photoreceptor can realize a light receiving area suitable for an irradiation area of pulsed light andcan greatly reduce positioning accuracy of the photoreceptor relative to a light emitting element, thereby realizing a flight time measuring device which does not reduce the maximum measuring distanceand can reduce cost, and realizing an inexpensive optical radar which increases the maximum measuring distance. The photoreceptor (80) measures the flight time by imaging the reflected light from anirradiation region that receives irradiation of an object irradiated with pulsed light by a lens and receiving the imaged light by a light receiving unit (81). The light receiving unit (81) is formedto be larger than a projection unit (PA) that is reflected by an irradiation region of the object and forms an image. A portion of the photoreceptor (81) that overlaps the projection unit (PA) is activated as the light receiving area.

A quantum-illumination receiver is described comprising a phase-conjugation and mixing system for mixing and / or conjugating the idler beam from an entangled light transmitter and the return beam from the target to produce an output beam that is representative of the presence or absence of the target, a light beam collector for receiving a return light beam from the target region and directing the return light beam from a target region to the phase-conjugation and mixing system input, an optical input for receiving an idler light beam from a transmitter and directing the idler light beam from the transmitter to the phase-conjugation and mixing system, a sensor for measuring the output of the phase-conjugation and mixing system, and a processor to process the output of the sensor to make an determination about the presence of the target.

The invention discloses an optical radar. The optical radar includes a radar body, a light-emitting component, a light guiding element, a photoelectric receiving component and a processor; the light-emitting component is arranged on the radar body and emits a first light ray to a target object; the distance between the light guiding element and the radar body is a fixed value, and the light-emitting component emits a second light ray to the light guiding element; the photoelectric receiving component is arranged on the radar body and receives the first light ray reflected by the target object and the second light ray transmitted through the light guiding element, and converts the first light ray and the second light ray into electrical signals; and the processor is arranged on the radar body, is electrically connected with the photoelectric receiving component, and is used for calculating detection distance between the target object and the radar body and detection distance between the light guiding element and the radar body. The optical radar provided by the invention calibrates a system error of the optical radar by emitting the second light ray as a calibration light ray.

A system and method for measuring depth using an optical radar system are described. The system includes an optical radar, a camera, a display, and a processor. The optical radar emits a signal towards an object. The processor identifies an object depicted in an image captured with the camera. The processor generates the signal with a non-repeating pattern of amplitude and frequency, and computes a depth of the object based on a difference in phase angle between the signal emitted from the optical radar and a return signal received at the optical radar. The depth includes a distance between the optical radar and the object. The processor generates AR content based on the identified object and adjusts a characteristic of the AR content in the display based on the computed depth of the object.

The invention provides a three-dimensional imaging optical radar system based on an LED light source. The three-dimensional imaging optical radar system based on the LED light source is used for lowering the cost of an existing 3D imaging optical radar system and comprises a high-power and high-speed LED light emitting assembly, a high-speed rotating modulation disk, a one-color CCD sensor, a three-unit optical imaging lens, a conversion imaging lens, an optical filter and a data processing module. The high-power and high-speed LED light emitting assembly conducts floodlighting on a target area in an imaging view field according to square wave drive, an echo light beam reflected by a target passes through the optical filter and then reaches the three-unit optical imaging lens, the light beam is imaged on the high-speed rotating modulation disk through the three-unit optical imaging lens, and then the light beam passes through the conversion imaging lens and is imaged on the one-color CCD sensor after being modulated. The output end of the one-color CCD sensor is connected with the data processing module. According to the three-dimensional imaging optical radar system based on the LED light source, through the reasonable 3D imaging mechanism, low-cost high-power and high-speed LEDs and the CCD sensor are adopted, so that the cost of the whole imaging radar is reduced, and imaging of a moving target is achieved.

The present invention can prevent the occurrence of blind spots, and can improve the intensity of light irradiated onto an object with a small number of optical members regardless of the distance to the object. A pulsed light emitting element 70 emits pulsed light that is linearly polarized in a first polarization direction, the pulsed light 1 passes through a polarizing beam splitter 60 and a lens 50 in this order and is radiated onto a target object 3, reflected light 2 passes through the lens 50 and the polarizing beam splitter 60 in this order, is linearly polarized in a second polarization direction that is different from the first polarization direction, and is concentrated on a light receiving element 80, the pulsed light emitting element 70 and the light receiving element 80 are provided on a focal plane of the lens 50, and the optical axis of the pulsed light 1 and the optical axis of the reflected light 2 overlap.

The invention discloses a new energy automobile power battery self-adaptive transshipment device which comprises a movable frame, a lifting bracket assembly, a transshipment clamping table and a positioning supporting table, the lifting bracket assembly is fixedly installed on the surface of the movable frame, and the lifting bracket assembly comprises a lifting guide frame, a moving arm, a bracket deflection steering wheel and a deflection steering engine; a lifting frame is slidably mounted on the inner side of the lifting guide frame, and the bracket deflection steering wheel is fixedly mounted at the top end of the lifting frame. According to the transport vehicle, by arranging an automatic guide type vehicle body structure and utilizing electromagnetic or optical or radar laser automatic guide mechanisms of equipment, the transport vehicle can run along a specified guide path, has safety protection and various transfer functions, and is provided with a trolley programming device, a parking selection device, safety protection and various transfer functions; and under the monitoring of a computer, the self-adaptive transshipment robot can be autonomously driven in an unmanned manner according to an instruction, automatically runs along a specified guide path and arrives at a specified place, so that a self-adaptive transshipment task is completed.

The present invention provides a non-mechanical-scanning-type optical radar apparatus that is capable of long distance measurement and its cost is reduced. The optical radar apparatus (100) includes:a light emitting section (110); and a light receiving system (140), the light receiving system (140) at least including a focusing optical element (151) and a distance sensor (153) that includes a light receiver (154), the target field of view being projected on the light receiver (154) through the focusing optical element (151), the distance sensor (153) being configured to set an activation region in a part of the light receiver (154) depending on the scanning with the light and measure a distance to the object with use of a signal from the activation region (5).