Provided are a method and an apparatus for correcting a color convergence error. The method includes: in a dark room environment, collecting a projection light point on a projection screen projected by a projection system, to obtain a projection image; adjusting the test pattern, so that a first projection light point corresponding to the white point of a first coordinate on the test pattern after being projected by a first color light source is located in a center of the projection image; obtaining a second and/or a third projection light points corresponding to the white point of the first coordinate after being projected by a second and/or a third color light sources from the projection image; and adjusting an assembly parameter of the projection system according to a position of the second and/or the third projection light points and a position of the first projection light point.

An automatic robot control system and methods relating thereto are described. These systems include components such as a touch screen panel (“TSP”) robot controller for controlling a TSP robot, a camera robot controller for controlling a camera robot and an audio robot controller for controlling an audio robot. The TSP robot operates inside a TSP testing subsystem, the camera robot operates inside a camera testing subsystem, and the audio robot operates inside an audio testing subsystem. Inside the audio testing subsystem, an audio signals measurement system, using a bi-directional coupling, controls the operation of the audio robot controller. In this control scheme, a test application controller is designed to control the different types of subsystem robots. Methods relating to TSP, camera, and audio robots, and their controllers, taken individually or in combination, for automatic testing of device functionalities are also described.

An automatic robot control system and methods relating thereto are described. These systems include components such as a touch screen panel (“TSP”) robot controller for controlling a TSP robot, a camera robot controller for controlling a camera robot and an audio robot controller for controlling an audio robot. The TSP robot operates inside a TSP testing subsystem, the camera robot operates inside a camera testing subsystem, and the audio robot operates inside an audio testing subsystem. Inside the audio testing subsystem, an audio signals measurement system, using a bi-directional coupling, controls the operation of the audio robot controller. In this control scheme, a test application controller is designed to control the different types of subsystem robots. Methods relating to TSP, camera, and audio robots, and their controllers, taken individually or in combination, for automatic testing of device functionalities are also described.

A stop-weighted light reference includes an LED light source and a pulse-generator structured to drive the light source at pre-defined levels. The pre-defeined levels relate to one another on a loge scale. The light reference may be used to characterize a non-calibrated camera. A look-up-table (LUT) of output values may be stored in a stand-alone device or in a test and measurement device, such as a waveform monitor. The LUT may correlate a range of input values to a set of output values that are calibrated to be on a loge scale. In operation, a camera output may be used as an index to the LUT to cause the calibrated output to be generated.

Methods, devices, systems, and computer-readable storage media for calibration of sensors are provided. In one aspect, a calibration method for a sensor includes: obtaining an image acquired by a camera of a sensor and obtaining radar point cloud data acquired by a radar of the sensor, a plurality of calibration plates being located within a common Field Of View (FOV) range of the camera and the radar and having different position-orientation information; for each of the plurality of calibration plates, detecting first coordinate points of the calibration plate in the image and second coordinate points of the calibration plate in the radar point cloud data; and calibrating an external parameter between the camera and the radar according to the first coordinate points and the second coordinate points of each of the plurality of calibration plates.

An adjusting seat includes a base, an adjustment unit and a worm gear. The adjusting seat has two supporting portions. The adjustment unit includes an assembly portion, two extending portions and a teeth portion. The assembly portion includes a first surface and a second surface. The two extension portions protrude from the first surface of the assembly portion so as to form an accommodation space with the assembly portion. The two extension portions are pivoted on the two support portions, respectively. The teeth portion is located on the second surface. The worm gear is pivoted on the base and meshed with the teeth portion, when the worm gear is rotated relative to the base. The teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.

An adjusting seat includes a base, an adjustment unit and a worm gear. The adjusting seat has two supporting portions. The adjustment unit includes an assembly portion, two extending portions and a teeth portion. The assembly portion includes a first surface and a second surface. The two extension portions protrude from the first surface of the assembly portion so as to form an accommodation space with the assembly portion. The two extension portions are pivoted on the two support portions, respectively. The teeth portion is located on the second surface. The worm gear is pivoted on the base and meshed with the teeth portion, when the worm gear is rotated relative to the base. The teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.

Techniques and systems for implementing fast, fixed-focal-length lens imaging systems for molecular biology or genetics applications are provided. In particular, techniques and structures are provided for allowing for precise alignment of the optical and imaging components of such imaging systems during assembly with a minimal amount of adjustment.

An imager module for a camera system includes a sensor carrier, an image sensor accommodated on the sensor carrier, and an objective lens. An elastically deformable clamping device is tensioned between the objective lens and the sensor carrier. The clamping device is elastically deformable, in particular between regions of the outer surface of the objective lens and the supporting ribs of a receiving depression in a plane that extends essentially orthogonally to an axis of symmetry of the objective lens or an optical axis of the imager module.

An imager module for a camera system includes a sensor carrier, an image sensor accommodated on the sensor carrier, and an objective lens. An elastically deformable clamping device is tensioned between the objective lens and the sensor carrier. The clamping device is elastically deformable, in particular between regions of the outer surface of the objective lens and the supporting ribs of a receiving depression in a plane that extends essentially orthogonally to an axis of symmetry of the objective lens or an optical axis of the imager module.