A reader includes a smartphone configured to read information from an image of a symbol included in a photographed image created by a camera module, and a unit attached to the smartphone. The unit includes a semiconductor laser to display a marker in a photographing range of the camera module. A user simply adjusts the orientation of the reader so that the marker overlaps on the symbol for reading processing of the smartphone, whereby information can be read from the symbol.

A system for optical measurement of an object includes a radiation generating device, a capturing device, and an evaluation device. The radiation generating device is configured to emit electromagnetic radiation onto the object. The capturing device includes an image sensor. The capturing device is configured to capture a measurement image as a result of an exposure of the image sensor with radiation returned from the object. The capturing device is configured to vary a focus setting (D) during the exposure. The evaluation device is configured to determine coordinates of at least one location on the object based on the captured measurement image.

Systems and methods for autofocusing an objective lens in a microscope system. A self-calibrating autofocus system includes a light source, a decentered aperture, and image-capturing device. The system may be connected to the microscope system so that the light source generates a light on an optical path that includes the objective lens and a plate having a reference surface proximal to a sample holding component. The image capturing device images a reflection of light from the reference surface as the objective lens moves to a series of z-positions. A reference calibration slope is generated for the objective lens by determining positions of the images taken at the z-positions of the objective lens. At least one image having a particular attribute corresponds to a best focus position. The objective lens is moved to predicted best focus or preferred offset from calibrated best focus using the reference calibration slope.

A method, system, and apparatus are provided for a traffic enforcement system. A certification period can be stored and displayed and the device deactivated upon expiration thereof.

A method, system, and apparatus are provided for a traffic enforcement system. A certification period can be stored and displayed and the device deactivated upon expiration thereof.

A measurement apparatus for a camera module includes a constant current driver, a light emitting element, a resistor, a light receiving element, an amplifier, and a control unit. The constant current driver is coupled to the light emitting element. The light receiving element is coupled to the resistor for generating an output current. When the camera module moves toward the light receiving element and the light emitting element, the relative output current generated from the light receiving element will be changed according to a distance between the camera module and the light receiving element. The motor characteristics (e.g., posture difference, resonant frequency) of the camera module may be measured by such method as a result.

Portable apparatus for identifying and mitigating defects in electronic devices disposed on substrates or windows are disclosed herein. Such defects can be visually perceived by the end user. The substrates or windows may include flat panel displays, photovoltaic windows, electrochromic devices, and the like, particularly electrochromic windows.

Portable apparatus for identifying and mitigating defects in electronic devices disposed on substrates or windows are disclosed herein. Such defects can be visually perceived by the end user. The substrates or windows may include flat panel displays, photovoltaic windows, electrochromic devices, and the like, particularly electrochromic windows.

A detection section detects a position of a container in a vertical direction, and an imaging optical system controller acquires an adjustment value of an imaging position of an imaging optical system according to the detected position. A correction section corrects the adjustment value according to a change in a refractive index of the container according to a temperature of the container. The imaging optical system controller adjusts an imaging position of an observation target on the basis of the corrected adjustment value.

A method comprises: directing, using an objective and a first reflective surface, first autofocus light toward a sensor, the first autofocus light reflected from a first surface of a substrate; preventing second autofocus light from reaching the sensor, the second autofocus light reflected from a second surface of the substrate; and directing, using the objective and a second reflective surface, emission light toward the sensor, the emission light originating from a sample at the substrate.