A safety system for use with a power tool that is usable by a user, the power tool including a base and a moving component that is movable relative to the base, includes a sensor assembly and a controller. The sensor assembly monitors a predetermined danger zone that is adjacent to the moving component of the power tool. The sensor assembly is configured to generate data relating to the predetermined danger zone. The controller receives the data from the sensor assembly and analyzes the data from the sensor assembly to determine if at least a portion of a hand of the user is present within the predetermined danger zone. The safety system can further include a wearable component including infrared only reflective material that is coupled to the hand of the user. The controller analyzes the data from the sensor assembly to determine if the wearable component is present within the predetermined danger zone.

A safety system for use with a power tool that is usable by a user, the power tool including a base and a moving component that is movable relative to the base, includes a sensor assembly and a controller. The sensor assembly monitors a predetermined danger zone that is adjacent to the moving component of the power tool. The sensor assembly is configured to generate data relating to the predetermined danger zone. The controller receives the data from the sensor assembly and analyzes the data from the sensor assembly to determine if at least a portion of a hand of the user is present within the predetermined danger zone. The safety system can further include a wearable component including infrared only reflective material that is coupled to the hand of the user. The controller analyzes the data from the sensor assembly to determine if the wearable component is present within the predetermined danger zone.

Method, apparatus, and non-transitory computer readable media for detecting reel-crop engagement for a header of a harvester. The header includes a reel configured to draw crop from a crop field toward the header as the harvester moves through the crop field and at least one crop detector mounted to the reel. Data is received from the at least one crop detector mounted on the reel, processed, and used to detect reel-crop engagement.

Method, apparatus, and non-transitory computer readable media for detecting reel-crop engagement for a header of a harvester. The header includes a reel configured to draw crop from a crop field toward the header as the harvester moves through the crop field and at least one crop detector mounted to the reel. Data is received from the at least one crop detector mounted on the reel, processed, and used to detect reel-crop engagement.

An electronic device includes a movable assembly. An optical proximity sensor is disposed on the movable assembly. The movable assembly may be spaced from a fixed assembly on the electronic device, and the movable assembly can move on a plane that is disposed in parallel relative to the fixed assembly. A light intensity of light that is from the optical proximity sensor and that is reflected by the fixed assembly may reflect a position of the movable assembly relative to the fixed assembly. Whether the movable assembly moves to a specified target position may be determined based on the light intensity of the light that is reflected by the fixed assembly and that is detected by the optical proximity sensor.

An electronic device includes a movable assembly. An optical proximity sensor is disposed on the movable assembly. The movable assembly may be spaced from a fixed assembly on the electronic device, and the movable assembly can move on a plane that is disposed in parallel relative to the fixed assembly. A light intensity of light that is from the optical proximity sensor and that is reflected by the fixed assembly may reflect a position of the movable assembly relative to the fixed assembly. Whether the movable assembly moves to a specified target position may be determined based on the light intensity of the light that is reflected by the fixed assembly and that is detected by the optical proximity sensor.

An optoelectronic sensor (10) for detecting objects comprises a light transmitter (12) for transmitting a light beam (16), a rotatable deflection unit (18) for periodically deflecting the light beam (16), an angle measuring unit (30) for determining an angular position of the deflection unit (18), a light receiver (26) for generating a reception signal from a reflected light beam (22), wherein the angle measuring unit (30) comprises an image sensor (32) moving with the deflection unit and arranged in the direction of a stationary part (44, 46) of the sensor (10), or a stationary image sensor (32) arranged in the direction of the deflection unit (18), further comprising a computing unit (36) to determine a relative movement of the deflection unit (18) with respect to the sensor (10) from a signal of the image sensor (32).

An optoelectronic sensor (10) for detecting objects comprises a light transmitter (12) for transmitting a light beam (16), a rotatable deflection unit (18) for periodically deflecting the light beam (16), an angle measuring unit (30) for determining an angular position of the deflection unit (18), a light receiver (26) for generating a reception signal from a reflected light beam (22), wherein the angle measuring unit (30) comprises an image sensor (32) moving with the deflection unit and arranged in the direction of a stationary part (44, 46) of the sensor (10), or a stationary image sensor (32) arranged in the direction of the deflection unit (18), further comprising a computing unit (36) to determine a relative movement of the deflection unit (18) with respect to the sensor (10) from a signal of the image sensor (32).

A power beaming system includes a power beam transmitter arranged to transmit the power beam, and a power beam receiver arranged to receive the power beam from the power beam transmitter. A power beam transmission source is arranged to generate a laser light beam for transmission by the power beam transmitter from a first location toward a remote second location. A beam-shaping element shapes the laser light beam, at least one diffusion element uniformly distributes light of the shaped laser light beam, and a projection element illuminates a power beam receiving element of predetermined shape with the shaped laser light beam. At the power beam receiver, a diffusion surface diffuses a portion the power beam specularly reflected from the power beam receiver.

A power beaming system includes a power beam transmitter arranged to transmit the power beam, and a power beam receiver arranged to receive the power beam from the power beam transmitter. A power beam transmission source is arranged to generate a laser light beam for transmission by the power beam transmitter from a first location toward a remote second location. A beam-shaping element shapes the laser light beam, at least one diffusion element uniformly distributes light of the shaped laser light beam, and a projection element illuminates a power beam receiving element of predetermined shape with the shaped laser light beam. At the power beam receiver, a diffusion surface diffuses a portion the power beam specularly reflected from the power beam receiver.