Abstract: A motor control device which is an example of the present disclosure includes a hardware processor configured to: calculate damper torque on a basis of a difference between a crank angle and a motor angle; calculate, on a basis of the damper torque, reversed phase torque in reverse phase to the damper torque; calculate a correction amount for a phase of the reversed phase torque on a basis of a difference between a first value corresponding to a torsion angle between an input inertial member and an output inertial member and a second value corresponding to a torsion angle between an intermediate inertial member and the output inertial member; and output a motor torque command to be provided to a motor generator on a basis of the reversed phase torque a phase of which has been corrected in accordance with the correction amount.

Abstract: This image acquisition apparatus includes a bottom surface position detection apparatus, and acquires an image of biological cells disposed in wells of a vessel. The bottom surface position detection apparatus includes a holder, a light irradiator, a detector, and a controller. The holder horizontally holds a vessel. The light irradiator irradiates a bottom portion of the vessel with a light beam. The detector detects a first reflected light beam reflected from a first bottom surface that is a bottom surface of the vessel and a second reflected light beam reflected from a second bottom surface that is a bottom surface of the wells. The controller calculates the position of the second bottom surface, based on a first peak position of the first reflected light beam and a second peak position of the second reflected light beam both detected by the detector.

Abstract: A light irradiation apparatus (31) includes a light source unit (40) and an irradiation optical system (5). In the light source unit, light source parts (4) arrayed in a plane emit laser light toward the irradiation optical system from different directions along the plane, and by the irradiation optical system, the laser light is guided along an optical axis (J1) to an irradiation plane (320). The irradiation optical system includes a division lens part (62), an optical path length difference generation part (61), and a condensing lens part (63). The division lens part includes element lenses (620) that divide light incident from the light source parts. The optical path length difference generation part includes transparent parts (610) having different optical path lengths from each other, and light that has passed through the element lenses respectively enters the transparent parts.

Abstract: An illuminator includes a light source and an illumination optical system for causing light emitted from the light source to be incident on a sample surface where an imaging object is present. The illumination optical system has an optical axis coaxial with that of an imaging optical system. An image of the light source is formed between the illumination optical system and the imaging optical system. A holder arranges the sample surface between the light source image and the imaging optical system.

Abstract: Laser light from a light source part is guided to an irradiation plane by an irradiation optical system including element lenses and transparent parts. Light fluxes having passed through the element lenses respectively enter the transparent parts. A light condensing part superimposes irradiation regions of the light fluxes on the irradiation plane. When viewed in the arrangement direction of the element lenses, the light fluxes regarded as parallel light enter the light condensing part which includes a diverging lens for causing the parallel light to diverge in a Y direction perpendicular to the arrangement direction, and a converging lens for causing the light from the diverging lens to converge on the irradiation plane. This configuration readily achieves a design where the focal length of the light condensing part regarding the Y direction is reduced, and suppresses shifts in light condensing positions of the light fluxes on the irradiation plane.

Abstract: An imaging apparatus includes an imager with an imaging optical system to having an object-side hypercentric property, an illuminator with a plurality of illumination optical systems having mutually different exit pupil positions and a mover for relatively moving these with respect to a well plate. Imaging is performed simultaneously with stroboscopic illumination when the imager is located at a predetermined imaging position, and illumination optical systems are switched according to the imaging position.

Abstract: An illuminator includes a light source and an illumination optical system for causing light emitted from the light source to be incident on a sample surface where an imaging object is present. The illumination optical system has an optical axis coaxial with that of an imaging optical system. An image of the light source is formed between the illumination optical system and the imaging optical system. A holder arranges the sample surface between the light source image and the imaging optical system.

Abstract: An imaging apparatus includes an imager with an imaging optical system to having an object-side hypercentric property, an illuminator with a plurality of illumination optical systems having mutually different exit pupil positions and a mover for relatively moving these with respect to a well plate. Imaging is performed simultaneously with stroboscopic illumination when the imager is located at a predetermined imaging position, and illumination optical systems are switched according to the imaging position.

Abstract: A light irradiation apparatus (31) includes a light source unit (40) and an irradiation optical system (5). In the light source unit, light source parts (4) arrayed in a plane emit laser light toward the irradiation optical system from different directions along the plane, and by the irradiation optical system, the laser light is guided along an optical axis (J1) to an irradiation plane (320). The irradiation optical system includes a division lens part (62), an optical path length difference generation part (61), and a condensing lens part (63). The division lens part includes element lenses (620) that divide light incident from the light source parts. The optical path length difference generation part includes transparent parts (610) having different optical path lengths from each other, and light that has passed through the element lenses respectively enters the transparent parts.

Abstract: Laser light from a light source part is guided to an irradiation plane by an irradiation optical system including element lenses and transparent parts. Light fluxes having passed through the element lenses respectively enter the transparent parts. A light condensing part superimposes irradiation regions of the light fluxes on the irradiation plane. When viewed in the arrangement direction of the element lenses, the light fluxes regarded as parallel light enter the light condensing part which includes a diverging lens for causing the parallel light to diverge in a Y direction perpendicular to the arrangement direction, and a converging lens for causing the light from the diverging lens to converge on the irradiation plane. This configuration readily achieves a design where the focal length of the light condensing part regarding the Y direction is reduced, and suppresses shifts in light condensing positions of the light fluxes on the irradiation plane.

Abstract: An optical scanner according to the present invention comprises a collimator lens, a cylindrical lens, a light deflector, an f-? lens and an anamorphic lens. The f-? lens is constituted by three groups of five lenses, i.e., a first cemented lens formed by bonding a first lens and a second lens to each other, a second cemented lens formed by boding a third lens and a fourth lens to each other and a fifth lens having positive refracting power. The f-? lens is formed to satisfy relational expressions L/f<0.100 and 0.04?r1/r4?0.31, where L represents the total length of the f-? lens, f represents the focal distance of the f-? lens, r1 represents the radius of curvature of an entrance-side refracting interface of the first lens and r4 represents the radius of curvature of an entrance-side refracting interface of the third lens.

Abstract: An optical scanner according to the present invention comprises a first imaging optical system consisting of a collimator lens and a cylindrical lens, a light deflector reflecting/deflecting a light beam for scanning, and a second imaging optical system consisting of an f-&thgr; lens and an anamorphic lens. The f-&thgr; lens has three groups of lenses, i.e., a first lens having negative refracting power, a second lens having positive refracting power and a third lens having positive refracting power. The f-&thgr; lens is formed to satisfy relational expressions L/f<0.100 and 0.10≦r1/r3≦0.26, where L represents the total length of the f-&thgr; lens, f represents the focal distance of the f-&thgr; lens, r1 represents the radius of curvature of a light beam entrance-side refracting interface of the first lens and r3 represents the radius of curvature of a light beam entrance-side refracting interface of the second lens.

Abstract: An optical scanner according to the present invention comprises a collimator lens, a cylindrical lens, a light deflector, an f-&thgr; lens and an anamorphic lens. The f-&thgr; lens is constituted by three groups of five lenses, i.e., a first cemented lens formed by bonding a first lens and a second lens to each other, a second cemented lens formed by boding a third lens and a fourth lens to each other and a fifth lens having positive refracting power. The f-&thgr; lens is formed to satisfy relational expressions L/f<0.100 and 0.04≦r1/r4≦0.31, where L represents the total length of the f-&thgr; lens, f represents the focal distance of the f-&thgr; lens, r1 represents the radius of curvature of an entrance-side refracting interface of the first lens and r4 represents the radius of curvature of an entrance-side refracting interface of the third lens.

Abstract: An optical scanner according to the present invention comprises a first imaging optical system consisting of a collimator lens and a cylindrical lens, a light deflector reflecting/deflecting a light beam for scanning, and a second imaging optical system consisting of an f-&thgr; lens and an anamorphic lens. The f-&thgr; lens has three groups of lenses, i.e., a first lens having negative refracting power, a second lens having positive refracting power and a third lens having positive refracting power. The f-&thgr; lens is formed to satisfy relational expressions L/f<0.100 and 0.10≧r1/r3≦0.26, where L represents the total length of the f-&thgr; lens, f represents the focal distance of the f-&thgr; lens, r1 represents the radius of curvature of a light beam entrance-side refracting interface of the first lens and r3 represents the radius of curvature of a light beam entrance-side refracting interface of the second lens.

Abstract: White light is irradiated onto the surface of a printed circuit board from an oblique direction to capture a color information image MG0. Infrared light is also irradiated from a substantially perpendicular direction to capture an infrared light image IRM. Region segmentation is performed based on the color information image MG0 produces an image MG3 representing an integrated color region which includes a gold region GL and a brown region BR. Using this image MG3 and the infrared light image IRM, the gold region GL can be distinguished from the brown region BR. In another embodiment, a plurality of images relating to a plurality of wavelength bands of light are respectively captured for an inspection region. Then, an image characteristic value is calculated for the plurality of images, and a wavelength band R7 which is appropriate for an inspection is selected on the basis of this image characteristic value.

Abstract: An illumination apparatus is disclosed which efficiently irradiates an irradiation surface without destroying the symmetry of an illuminance distribution at the irradiation surface. A light source is displaced from a center of curvature of a spherical mirror in a direction in a displacement plane which includes an axis of symmetry of the spherical mirror so as to form a light source image at a position off the light source. Due to this, a ray from the spherical mirror passes off the light source (i.e., the position of the light source image), and therefore, a reflection ray is not shielded, absorbed nor otherwise disturbed by the light source, which in turn prevents deterioration in the efficiency of utilization of light.

Abstract: A film thickness measuring apparatus measures the thickness of a thin film which is formed on a substrate with an excellent reproducibility regardless of inclination of a surface of a sample. Since an illumination system (20) includes a glass rod (GL) which corrects wavelength dependencies of luminance distributions of light sources (HL, DL), even when an eclipse in reflected light due to inclination of a sample (SP) decreases the energy of the reflected light, a spectral distribution of the reflected light entering a spectroscopic unit (40) is maintained with almost no change. A control unit (50) performs data conversion of multiplying an actual spectral reflectance by a ratio of an average of the actual spectral reflectance which is determined based on an output from the spectroscopic unit (40) to an average of a calibrated spectral reflectance and thereafter calculates a deviation between the two spectral reflectances.

Abstract: Light of an observation wavelength range is irradiated upon a sample object to measure spectral reflection ratios, and an waveform is developed from the spectral reflection ratios. Based on the total number of peaks and valleys found in the interference waveform and two wavelengths specified within the observation wavelength range, possible ranges for the film thicknesses of the respective transparent films are determined. While changing tentative film thicknesses of the respective transparent films each by a predetermined film thickness pitch within the film thickness ranges, a deviation between theoretical spectral reflectance and measured spectral reflectance with respect to the tentative film thicknesses is calculated to thereby find a film thickness combination which causes the deviation to be minimum.

Abstract: A method of measuring light reflected by a test sample with a microscopic photometric system. The test sample placed in an in-focus position of an objective is irradiated, and light reflected by the test sample is measured. Stray light generated by microscopic optics including the objective is measured with the test sample placed in an out-of-focus position of the objective. Light actually reflected by the test sample is determined from a difference between the reflected light and the stray light measured.