Abstract: A three-dimensional profiler includes a broadband radiation source. An interferometric system receives the radiation and includes first and second beam splitters, a moving time delay-inducing reflector, and a stationary reflector. The interferometric system creates a time-delayed optical sample radiation source and an optical reference incident radiation source with the first beam splitter. A stationary sample holder receives the optical sample incident radiation. A reference plane receives the optical reference incident radiation. A detector receives an interference signal from reflected or scattered optical sample radiation and reflected or scattered optical reference radiation. A processor extracts an optical path difference between the reference plane and the sample and reconstructs a three-dimensional morphology of the sample.

Abstract: A hand temperature monitoring device includes at least one sensing array composed of a flexible printed circuit board (110), temperature sensors (120), p-type metal oxide semiconductor field-effect transistors (MOSFETs) (130), polymer films (140) and carbon fiber boards (150). The temperature sensors (120) are disposed on a first side (112) of the flexible printed circuit board (110). The p-type MOSFETs (130) are disposed on a second side (114) of the flexible printed circuit board (110) opposing to the temperature sensors (120), wherein each of the p-type MOSFETs (130) is electrically connected to one of the temperature sensors (120). The polymer film (140) encapsulates each of the temperature sensors (120) and the p-type MOSFETs (130) respectively. The carbon fiber board (150) is positioned over the polymer film and spaced apart from the polymer film (140).

Abstract: A system is provided for gathering information and data on the surface characteristics of an object includes a projector, a table, a first camera and a second camera. The projector is suspended above the table and arranged to project a random pattern of optical indicators onto the table. The optical indicators can be dots, lines, or other such indicators. The table is arranged to hold the object to be inspected. The first camera is positioned above and to one side of the table and angled toward the table. The second camera is positioned above and to opposite side of the table and angled toward the table. The first and second cameras are arranged to capture images of the optical indicators projected onto the object. The system is further arranged to gather information and data from the captured images and determine the surface characteristics of the object from said gathered information and data.

Abstract: A optical target assembly is disclosed herein. The optical target assembly is movable about orthogonal pitch, yaw and roll axes and includes a reflector, a pitch and yaw angular sensor assembly, and a roll sensor assembly. The reflector is configured to engage a source of laser light. The pitch and yaw angular sensor includes a laser light sensor and an angle detection sensor. The pitch and yaw angular sensor assembly is configured to measure 360 degrees of motion about the pitch and the yaw axes. The roll sensor assembly is configured to measure 360 degrees of motion about the roll axis. The reflector can include an aperture configured to permit a portion of laser light incident on the reflector to pass through the reflector and onto the laser light sensor. The roll sensor assembly can include a roll angle sensor and a roll level sensor coupled to a two-dimensional pendulum.

Abstract: Disclosed herein are interferometric measurement systems and methods. In one exemplary embodiment an interferometric measuring system for measuring the distance to or displacement of an object includes: a light source; an interferometer with a measuring arm and a reference arm; a dispersive medium; and a detector. The interferometer is disposed between the light source and the object. The dispersive medium is arranged to unbalance the dispersion between the measurement arm and the reference arm. The detector is arranged to detect spectrum interference from the interferometer. In one example, the dispersive medium is a chirped fiber Bragg grating. In another example, the dispersive medium is a highly dispersive optical fiber. In one example, the light source is a broadband light source, and the detector includes a spectrometer. In another example, the light source is a wavelength swept laser, and the detector includes a photodetector or a balanced photodetector.

Abstract: A system is provided for gathering information and data on the surface characteristics of an object includes a projector, a table, a first camera and a second camera. The projector is suspended above the table and arranged to project a random pattern of optical indicators onto the table. The optical indicators can be dots, lines, or other such indicators. The table is arranged to hold the object to be inspected. The first camera is positioned above and to one side of the table and angled toward the table. The second camera is positioned above and to opposite side of the table and angled toward the table. The first and second cameras are arranged to capture images of the optical indicators projected onto the object. The system is further arranged to gather information and data from the captured images and determine the surface characteristics of the object from said gathered information and data.

Abstract: A optical target assembly is disclosed herein. The optical target assembly is movable about orthogonal pitch, yaw and roll axes and includes a reflector, a pitch and yaw angular sensor assembly, and a roll sensor assembly. The reflector is configured to engage a source of laser light. The pitch and yaw angular sensor includes a laser light sensor and an angle detection sensor. The pitch and yaw angular sensor assembly is configured to measure 360 degrees of motion about the pitch and the yaw axes. The roll sensor assembly is configured to measure 360 degrees of motion about the roll axis. The reflector can include an aperture configured to permit a portion of laser light incident on the reflector to pass through the reflector and onto the laser light sensor. The roll sensor assembly can include a roll angle sensor and a roll level sensor coupled to a two-dimensional pendulum.

Abstract: Disclosed herein are interferometric measurement systems and methods. In one exemplary embodiment an interferometric measuring system for measuring the distance to or displacement of an object includes: a light source; an interferometer with a measuring arm and a reference arm; a dispersive medium; and a detector. The interferometer is disposed between the light source and the object. The dispersive medium is arranged to unbalance the dispersion between the measurement arm and the reference arm. The detector is arranged to detect spectrum interference from the interferometer. In one example, the dispersive medium is a chirped fiber Bragg grating. In another example, the dispersive medium is a highly dispersive optical fiber. In one example, the light source is a broadband light source, and the detector includes a spectrometer. In another example, the light source is a wavelength swept laser, and the detector includes a photodetector or a balanced photodetector.

Abstract: Disclosed is a device for rapidly and comprehensively inspecting a lens actuator, the device comprising a bracket (4) for fixing the lens actuator, a cone-shaped body (2) and a camera (1), wherein the outer surface of the cone-shaped body (2) is a mirror surface, the cone-shaped body (2) is mounted on the top of the bracket (4), and the camera (1) is hung above the cone-shaped body (2). Further disclosed is a system employing the above-mentioned device for rapidly and comprehensively inspecting a lens actuator, and a method for inspecting a lens actuator by using the above-mentioned device. A rapid inspection can be realized so as to facilitate quality inspection and control in mass production, and a comprehensive inspection also can be realized, the inspection items including lens stroke, magnitude of inclination and the similar items under different control conditions.

Abstract: Disclosed is a device for rapidly and comprehensively inspecting a lens actuator, the device comprising a bracket (4) for fixing the lens actuator, a cone-shaped body (2) and a camera (1), wherein the outer surface of the cone-shaped body (2) is a mirror surface, the cone-shaped body (2) is mounted on the top of the bracket (4), and the camera (1) is hung above the cone-shaped body (2). Further disclosed is a system employing the above-mentioned device for rapidly and comprehensively inspecting a lens actuator, and a method for inspecting a lens actuator by using the above-mentioned device. A rapid inspection can be realized so as to facilitate quality inspection and control in mass production, and a comprehensive inspection also can be realized, the inspection items including lens stroke, magnitude of inclination and the similar items under different control conditions.