An example device including a laser source for generating a laser pulse, a scanner for mounting the laser source, and a motion detector for detecting a motion of the scanner when the laser pulse scans an object. The motion detector includes an optical sensor for generating an optical signal based on the motion of the scanner, and a controller. The controller determines a movement of the scanner and disables the laser source when the scanner ceases to move.

A controller 70 of an image reading device 1 acquires first black reference data at a first time point with a light source 31 off, and stores the first black reference data in a reference data storage 41, and at a second time point after the first time point, acquires with the light source 31 off and stores second black reference data in the reference data storage 41. The controller 70 stores in a scanning data storage 42, without applying shading correction, scanning data read from a document between the first time point and second time point with the light source 31 on. A shading corrector 51 applies shading correction using the first black reference data and second black reference data to the scanning data stored in the scanning data storage 42.

A controller 70 of an image reading device 1 acquires first black reference data at a first time point with a light source 31 off, and stores the first black reference data in a reference data storage 41, and at a second time point after the first time point, acquires with the light source 31 off and stores second black reference data in the reference data storage 41. The controller 70 stores in a scanning data storage 42, without applying shading correction, scanning data read from a document between the first time point and second time point with the light source 31 on. A shading corrector 51 applies shading correction using the first black reference data and second black reference data to the scanning data stored in the scanning data storage 42.

A method and device for the optical scanning of a chromatographic sample (3), where a sample plate (2) holding the sample (3) is illuminated with light from a first illumination device (13) and the light emitted by the sample plate (2) is detected by an optical detector device (15) which detects in cell form or area form, a second illumination device (14) is preferably firstly activated in a preparation step. The sample plate (2) is displaced in a first displacement direction relative to the detector device (15), illuminated by the first illumination device (13) and a first measurement image is recorded. The sample plate (2) is displaced in a second displacement direction relative to the detector device (15), illuminated by the second illumination device (14), and a second measurement image is recorded.

The present disclosure relates to a portable scanner capable of increasing the precision of focus and a scanning method using the same. According to an embodiment of the present disclosure, the portable scanner, which generates a three dimensional (3D) image from a subject, includes a focus state output device to determine a present focus state with respect to a set focal length from a subject and to output the present focus state such that a user recognizes the present focus state.

The present disclosure relates to a portable scanner capable of increasing the precision of focus and a scanning method using the same. According to an embodiment of the present disclosure, the portable scanner, which generates a three dimensional (3D) image from a subject, includes a focus state output device to determine a present focus state with respect to a set focal length from a subject and to output the present focus state such that a user recognizes the present focus state.

A light-emitting component includes an insulating substrate, plural light-emitting elements, and plural thyristors. The plural light-emitting elements are disposed on the substrate and constituted by a first stacked semiconductor layer, the first stacked semiconductor layer being obtained by stacking plural semiconductor layers. The plural thyristors are constituted by a second stacked semiconductor layer disposed on the substrate such that the light-emitting elements and the thyristors are arranged side by side, connected to the plural light-emitting elements, respectively, and turn on to drive the light-emitting elements to emit light or to increase an emitted light amount, the second stacked semiconductor layer being obtained by stacking plural semiconductor layers that are different from the semiconductor layers of the first stacked semiconductor layer.

An engine output control unit of a work vehicle is configured to set a target rotation speed of an engine by using an engine output torque curve, to control an output of the engine. The engine output control unit is configured to control the output of the engine so as to set torque to be higher than torque at an actual rotation speed obtained using the engine output torque curve. Typically, when the actual rotation speed of the engine becomes smaller than the target rotation speed, the engine output control unit sets an engine output torque curve that is greater in torque at the actual rotation speed than the engine output torque curve, and switches control of the output of the engine from control performed using the engine output torque curve to control performed using the engine output torque curve.

An engine output control unit of a work vehicle is configured to set a target rotation speed of an engine by using an engine output torque curve, to control an output of the engine. The engine output control unit is configured to control the output of the engine so as to set torque to be higher than torque at an actual rotation speed obtained using the engine output torque curve. Typically, when the actual rotation speed of the engine becomes smaller than the target rotation speed, the engine output control unit sets an engine output torque curve that is greater in torque at the actual rotation speed than the engine output torque curve, and switches control of the output of the engine from control performed using the engine output torque curve to control performed using the engine output torque curve.

A recording system for recording a recording image based on image data by repeating a pass operation in which a nozzle column discharges ink while reciprocating relatively to a recording medium in a main scanning direction to form dots on the recording medium, and a conveying operation of relatively moving the nozzle column and the recording medium in a sub-scanning direction crossing the main scanning direction, the recording system including an assigning section for obtaining a plurality of halftone data which is generated with respect to the same area of the image data based on the image data, and which corresponds to the ink of a predetermined color, and then assigning each of the halftone data obtained to the pass operations in the same direction in reciprocation in the main scanning direction in a predetermined recording area.