Abstract: An acquisition unit acquires laser measurement data every time a laser measurement is performed. Based on the acquired laser measurement data, a first detection unit detects an attention angle, which is an irradiation angle corresponding to a measurement distance not included in a standard distance range. A second detection unit detects a warning angle, which is an irradiation angle matching the attention angle for a time longer than an allowable time. A warning unit issues a warning when the warning angle is detected.

Abstract: A method for measuring and registering 3D coordinates has a 3D scanner measure a first collection of 3D coordinates of points from a first registration position. A 2D scanner collects horizontal 2D scan sets as 3D measuring device moves from first to second registration positions. A processor determines first and second translation values and a first rotation value based on collected 2D scan sets. 3D scanner measures a second collection of 3D coordinates of points from second registration position. Processor adjusts second collection of points relative to first collection of points based at least in part on first and second translation values and first rotation value. Processor identifies a correspondence among registration targets in first and second collection of 3D coordinates, and uses this correspondence to further adjust the relative position and orientation of first and second collection of 3D coordinates.

Abstract: An optical distance measuring system includes a first transmitter, a first solid state device, and a receiver. The first transmitter is configured to generate a first optical waveform. The first solid state device is configured to receive the first optical waveform and steer the first optical waveform toward a target object. The receiver is configured to receive the first optical waveform reflected off of the first target object and determine a distance to the first target object based on a time of flight from the transmitter to the first target object and back to the receiver.

Abstract: A phase difference frequency generating method comprising: cutting out a reference signal, which is a continuous signal with a predetermined frequency, in a predetermined time and at a predetermined time interval by a signal for intermitting and creating a first intermittent signal, shifting the signal for intermitting by a time corresponding to ?/a (a=natural number) of a fundamental frequency of the reference signal, cutting out the reference signal in the predetermined time and at the predetermined time interval by the signal for intermitting as shifted and creating a second intermittent signal, and carrying out a restoration processing for restoring the second intermittent signal by a time as shifted.

Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.

Abstract: A scanning device includes a transmitter, a receiver, and a rotor that is configured to be mounted in a rotatable manner about an axis of rotation. The transmitter is configured to at least occasionally emit electromagnetic radiation, and the receiver is configured to sense at least part of the electromagnetic radiation reflected and/or scattered by an object. The transmitter and the receiver are arranged on the rotor in an at least partially axially overlapping manner based on the axis of rotation.

Abstract: An optical transmitting system for distance measuring includes a signal generator, a laser diode coupled to the signal generator, and an optics device. The signal generator is configured to generate a first plurality of electrical signals. The laser diode is configured to generate a first plurality of optical waveforms that correspond with the first plurality of electrical signals. The optics device is configured to receive the first plurality of optical waveforms and direct the first plurality of optical waveforms toward a first plurality of scan points that form a scan region within a field of view (FOV). A first signal type, a first signal duration, a first signal amplitude, or a first signal repetition frequency of the first plurality of optical waveforms is based on a first desired range of the first plurality of scan points.

Abstract: A method for acquiring tracking points belonging to a trajectory of a target object in motion, includes: emitting a radiation towards the target object; receiving a reflection of the radiation from the target object in respective fields of view of each detection zone of a network of detection zones; processing the reflection by determining distances separating the target object from an origin point by measuring a time of flight of the radiation in each detection zone; determining a degree of coverage of each detection zone; and estimating, based on the distances and on the degree of coverage of each detection zone, a position of a tracking point corresponding to a position of an extremity of the target object inside a respective detection zone chosen in a direction of motion of the target object.

Abstract: Embodiments describe optical imagers that include one or more micro-optic components. Some imagers can be passive imagers that include a light detection system for receiving ambient light from a field. Some imagers can be active imagers that include a light emission system in addition to the light detection system. The light emission system can be configured to emit light into the field such that emitted light is reflected off surfaces of an object in the field and received by the light detection system. In some embodiments, the light detection system and/or the light emission system includes micro-optic components for improving operational performance.

Abstract: A ranging device provided with a light projecting unit for projecting a reference pulse set row including a main pulse and at least one sub pulse, a light receiving unit for receiving a reflected pulse set row obtained by reflection of the reference pulse set row by an object to be measured, and an identifying unit for identifying the reflected pulse set row corresponding to the reference pulse set row. The ranging device is further provided with a calculating unit for calculating a distance to the object to be measured on the basis of a delay time difference between the reference pulse set row and the reflected pulse set row corresponding to the reference pulse set row. The light projecting unit projects a plurality of reference pulse set rows having different pulse intervals.

Abstract: A system includes at least one earpiece wherein each earpiece comprises an earpiece housing, a light source operatively connected to each earpiece housing and configured to transmit substantially coherent light toward an outer surface of a user's body, a light receiver operatively connected to the earpiece housing proximate to the light source and configured to receive reflected light from the outer surface of the user's body, and one or more processors disposed within the earpiece housing and operatively connected to the light source and light receiver, wherein one or more processors is configured to determine bone vibration measurements from the reflected light. A method of determining bone vibrations includes providing at least one earpiece, transmitting substantially coherent light toward an outer surface of a user's body using the earpiece, receiving reflected light from the outer surface of the user's body using the earpiece, and determining bone vibration measurements using the earpiece.

Abstract: A method of generating frequency combs composed of a predetermined number of rays, wherein the method includes the modulation of a main ray generated by a laser source (20), by a first radiofrequency signal at a first frequency value, by a second radio frequency signal at a second frequency value, and by a third radio frequency signal at a third frequency value. The second frequency value is equal to twice the first frequency value. The third frequency value is equal to three times the first frequency value.

Abstract: A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.

Abstract: Techniques of designing an image sensor particularly useful in lidar applications are described. According to one aspect of the present invention, an image sensor is designed to take advantage of the architecture of CMOS sensor with correlated double sampling, or CDS, to avoid the sensing speed being halved in order to cancel background light interference. It is commonly known that a photosensor is read twice (i.e., first and second readouts) in CDS for removing the inherent noises from the photosensor itself. Instead of subtracting a pixel's dark or reference output level from an actual light-induced signal, a background image is managed to be captured before the second readout of the sensor and subtracted from an actual image, where the actual image is defined to include an target. As a result, the readout speed of an image sensor is maintained while the background light interference is removed.

Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.

Abstract: A ranging sensor includes a light emitting unit includes a plurality of light emitting elements, a light receiving unit including a plurality of light receiving elements, a space control unit, a position estimation unit, and a TOF signal processing unit, operates in cooperation with an RGB camera module, and generates target distance information for generating three-dimensional position information. The space control unit independently controls each element group including a light emitting element and a light receiving element allocated to a common subspace. The position estimation unit estimates, from received light amount distribution of a plurality of light receiving elements receiving a reflected light beam from the target existing in a space of each subspace, a position of the target in the space of the subspace group. The TOF signal processing unit performs TOF signal processing in parallel with channels whose number is less than that of light emitting elements.

Abstract: Systems and methods are described that relate to a light detection and ranging (LIDAR) device. The LIDAR device includes a fiber laser configured to emit light within a wavelength range, a scanning portion configured to direct the emitted light in a reciprocating manner about a first axis, and a plurality of detectors configured to sense light within the wavelength range. The device additionally includes a controller configured to receive target information, which may be indicative of an object, a position, a location, or an angle range. In response to receiving the target information, the controller may cause the rotational mount to rotate so as to adjust a pointing direction of the LIDAR. The controller is further configured to cause the LIDAR to scan a field-of-view (FOV) of the environment. The controller may determine a three-dimensional (3D) representation of the environment based on data from scanning the FOV.

Abstract: A distance-measuring optoelectronic sensor (10) uses two sampling memories for detection of objects in a monitoring zone (20). The sensor (10) has a light transmitter (12) for transmitting a transmission light pulse (16) into the monitoring area (20), a light receiver (26) for generating a reception signal from the light pulse (22) remitted by objects in the monitoring area (20), a control and evaluation unit (32) configured to determine a reception point in time from the reception signal and the distance of the object by means of a light time of flight method, and a first and second sampling memory (34a, 34b) having a plurality of memory cells each for storing a section of the reception signal. Partially overlapping recording regions are used, with each alternately recording a reception signal for a longer duration than a time interval between two successive transmission light pulses (16).

Abstract: A swimming pool cleaner includes a chassis that supports a motor and a camera that is associated with the chassis and configured to identify at least one object. A controller is in communication with the camera and is configured to control movement of the pool cleaner based on output from the camera.

Abstract: An optical base station including a base, a light source and a first MEMS scanning mirror is provided. The light source is disposed on the base for providing a light beam. The first MEMS scanning mirror is disposed at an optical path of the light beam to reflect the light beam for spatial scanning.