Abstract: An imaging device includes a lens array including multiple lenses facing a subject; an image sensor obtaining a compound-eye image including single-eye images of the subject formed by the lenses; and a computing unit processing the compound-eye image obtained by the image sensor. The lenses have different radii of curvature and substantially the same back focal length, and the computing unit extracts an in-focus image from the compound-eye image.

Abstract: An image pickup apparatus comprises a lens array with a plurality of lenses, a part of which lenses makes one or more stereo lens pairs; an image pickup device for taking a multifaceted compound-eye image consisting of a set of monocular images formed by the plural lenses; and a computing unit for computing range imagery from one or more pairs of the monocular images formed by said one or more stereo lens pairs. The computing unit includes imaging position determination means for determining from the monocular images an image pickup position of each of one or more subjects whose relative positional relationships with respect to the image pickup apparatus are known by dividing the multifaceted compound-eye image into the monocular images, and image distortion parameter determination means for determining an image distortion parameter based upon a determination result of the imaging position determination means.

Abstract: A defect inspection apparatus includes an imaging apparatus configured to include a lens array configure to include plural lenses arranged in a form of an array, and an imaging device configured to image a compound-eye image that is a collection of ommatidium images of an object approximately formed by the respective plural lenses of the lens array; and a processing apparatus configured to process the compound-eye image obtained from imaging the object by the imaging apparatus, and determine whether there is a defect of the object.

Abstract: An image pickup apparatus comprises a lens array with a plurality of lenses, a part of which lenses makes one or more stereo lens pairs; an image pickup device for taking a multifaceted compound-eye image consisting of a set of monocular images formed by the plural lenses; and a computing unit for computing range imagery from one or more pairs of the monocular images formed by said one or more stereo lens pairs. The computing unit includes imaging position determination means for determining from the monocular images an image pickup position of each of one or more subjects whose relative positional relationships with respect to the image pickup apparatus are known by dividing the multifaceted compound-eye image into the monocular images, and image distortion parameter determination means for determining an image distortion parameter based upon a determination result of the imaging position determination means.

Abstract: An imaging device includes a lens array including multiple lenses facing a subject; an image sensor obtaining a compound-eye image including single-eye images of the subject formed by the lenses; and a computing unit processing the compound-eye image obtained by the image sensor. The lenses have different radii of curvature and substantially the same back focal length, and the computing unit extracts an in-focus image from the compound-eye image.

Abstract: A disclosed electric field generating device includes an electric field generating unit including a substrate, line electrodes, and an electric field generating resistor and configured to generate an electric field. In the disclosed electric field generating device, the line electrodes are formed on at least one side of the substrate in parallel with each other so as to divide the side of the substrate into multiple sections; the electric field generating resistor is shaped like a strip and positioned so as to touch a part of each of the line electrodes; and some of the line electrodes have connectors for electric connection.

Abstract: A disclosed optical path switching device includes a polarization bistable VCSEL that emits a beam having a rising polarization plane, a laser light source configured to emit a beam having a polarization plane orthogonal to the rising polarization plane, and an optical path switching unit configured to switch an optical path of the beam emitted from the polarization bistable VCSEL by switching the angle of the rising polarization plane of the beam emitted from the polarization bistable VCSEL. The beam emitted from the polarization bistable VCSEL is incident on an entrance window of the optical path switching unit, and the beam emitted from the laser light source is incident on an exit window of the polarization bistable VCSEL.

Abstract: A disclosed optical path switching device includes a polarization bistable VCSEL that emits a beam having a rising polarization plane, a laser light source configured to emit a beam having a polarization plane orthogonal to the rising polarization plane, and an optical path switching unit configured to switch an optical path of the beam emitted from the polarization bistable VCSEL by switching the angle of the rising polarization plane of the beam emitted from the polarization bistable VCSEL. The beam emitted from the polarization bistable VCSEL is incident on an entrance window of the optical path switching unit, and the beam emitted from the laser light source is incident on an exit window of the polarization bistable VCSEL.

Abstract: A disclosed electric field generating device includes an electric field generating unit including a substrate, line electrodes, and an electric field generating resistor and configured to generate an electric field. In the disclosed electric field generating device, the line electrodes are formed on at least one side of the substrate in parallel with each other so as to divide the side of the substrate into multiple sections; the electric field generating resistor is shaped like a strip and positioned so as to touch a part of each of the line electrodes; and some of the line electrodes have connectors for electric connection.

Abstract: An optical disk apparatus for an optical disk enclosed in a disk cartridge comprises a casing for accommodating the cartridge through a cassette insertion aperture formed therein. A disk drive motor for rotating the optical disk, a loading assembly for detachably loading the cartridge on the disk drive motor, and an optical pickup device for recording data on and/or reproducing data from the optical disk are provided in the casing. Deflecting member provided for sealing the periphery of the optical pickup device against the flow of outside air introduced in the casing. A specific air-seal or door structure is provided for preventing introduction of air from the cassette insertion aperture into the casing.