Abstract: This invention relates to a visible image unit identification code structure using a spatial visible image forming device. A spatial visible image forming device is used that includes: a laser source that emits a laser beam in an invisible region; a scanning means that scans the laser beam; a condensing optical system that condenses the laser beam to a drawing scheduled point in a space so as to cause plasma emission of a gas; and a control means that controls oscillation timing of the laser source and scanning timing of the scanning means so as to generate the plasma emission at the drawing scheduled point in a time series and draw a visible image as an afterimage phenomenon of the plasma emission.

Abstract: This invention relates to a visible image unit identification code structure using a spatial visible image forming device. A spatial visible image forming device is used that includes: a laser source that emits a laser beam in an invisible region; a scanning means that scans the laser beam; a condensing optical system that condenses the laser beam to a drawing scheduled point in a space so as to cause plasma emission of a gas; and a control means that controls oscillation timing of the laser source and scanning timing of the scanning means so as to generate the plasma emission at the drawing scheduled point in a time series and draw a visible image as an afterimage phenomenon of the plasma emission.

Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.

Abstract: A displacement measuring device, comprising a pattern projecting unit, a pattern image pickup unit capable of relatively displacing with respect to the pattern projecting unit and a control unit, wherein the pattern projecting unit projects a displacement detecting pattern to the pattern image pickup unit, the pattern image pickup unit picks up the displacement detecting pattern as projected, the control unit circulates image of the displacement detecting pattern picked up by the pattern image pickup unit to the pattern projecting unit, updates the displacement detecting pattern projected by the pattern projecting unit to the displacement detecting pattern as circulated, and projects the displacement detecting pattern as updated to the pattern image pickup unit, wherein relative displacement between the pattern projecting unit and the pattern image pickup unit is obtained by dividing a displacement amount of the displacement detecting pattern in the image acquired by circulation by the number of circulations.

Abstract: A three-dimensional input device, which comprises two optical measuring means as set at a predetermined interval from each other, and for measuring a three-dimensional position of an object to be measured at a real time based on a direction of an object to be measured as obtained individually by the two optical measuring means and the predetermined interval and also has a three-dimensional position detecting device which is capable of being mounted on a human body, and a control unit, wherein the control unit generates input information based on change and mode of change of three-dimensional position of the object to be measured.

Abstract: An image pickup device, which comprises an optical characteristics changing unit (15), an optical system (45) containing an objective lens (47) and for leading a light from the objective lens to the optical characteristics changing unit, and an image pickup element (52) for receiving a light via the optical characteristics changing unit, wherein the optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and the dividing unit has a first region to select a specific wavelength from the light coming from the optical system and a second region where optical characteristics of the light from the optical system are not changed.

Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.

Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.

Abstract: A three-dimensional input device, which comprises two optical measuring means as set at a predetermined interval from each other, and for measuring a three-dimensional position of an object to be measured at a real time based on a direction of an object to be measured as obtained individually by the two optical measuring means and the predetermined interval and also has a three-dimensional position detecting device which is capable of being mounted on a human body, and a control unit, wherein the control unit generates input information based on change and mode of change of three-dimensional position of the object to be measured.

Abstract: A displacement measuring device, comprising a pattern projecting unit, a pattern image pickup unit provided so as to be capable of relatively displacing with respect to the pattern projecting unit and a control unit, wherein the pattern projecting unit is capable of projecting a displacement detecting pattern to the pattern image pickup unit, the pattern image pickup unit is capable of picking up the displacement detecting pattern as projected, the control unit is adopted.

Abstract: A spectral image sensor device comprises a first optical system 47 and 48 including an objective lens, a luminous fluxes selecting member 55 for allowing a part of the luminous fluxes to pass via the first optical system selectively, an optical member 58 where the luminous fluxes selecting member is disposed so as to be at focal position on an object side or approximately at focal position on an object side, and an interference membrane is formed, and wavelength range of the luminous fluxes for passing through the luminous fluxes selecting member is selected, depending on position of the luminous fluxes selecting member, a second optical system 49 for guiding the luminous fluxes toward the optical member, and an image sensor 52 for receiving a light in wavelength range as selected by the optical member.

Abstract: A spectral image acquiring device comprises an objective lens, a field aperture member for limiting a size of an image passing through the objective lens and focusing, a wavelength selecting member arranged on an optical axis of the objective lens, having two or more wavelength selecting surfaces and having different wavelength selection characteristics for each of the wavelength selecting surfaces, a deflecting member for deflecting partial luminous fluxes passing through the wavelength selecting surface, an image pickup element arranged on the optical axis of the objective lens, and an image forming lens for focusing the partial luminous fluxes deflected by the deflecting member on the image pickup element for each of the partial luminous fluxes.

Abstract: An image pickup device, which comprises an optical characteristics changing unit (15), an optical system (45) containing an objective lens (47) and for leading a light from the objective lens to the optical characteristics changing unit, and an image pickup element (52) for receiving a light via the optical characteristics changing unit, wherein the optical characteristics changing unit has two or more dividing units, and has a configuration where one of the dividing units is selectively disposed along an optical path, and the dividing unit has a first region to select a specific wavelength from the light coming from the optical system and a second region where optical characteristics of the light from the optical system are not changed.

Abstract: An image acquiring device comprises a first camera 14 for acquiring video images, consisting of frame images continuous in time series, a second camera 15 being in a known relation with the first camera and used for acquiring two or more optical spectral images of an object to be measured, and an image pickup control device 21, and in the image acquiring device, the image pickup control device is configured to extract two or more feature points from one of the frame images, to sequentially specify the feature points in the frame images continuous in time series, to perform image matching between the frame images regarding the frame images corresponding to the two or more optical spectral images based on the feature points, and to synthesize the two or more optical spectral images according to the condition obtained by the image matching.

Abstract: In an interference microscope and a measuring device for observing and inspecting the surface and inside of a specimen such as a wafer by applying laser light to the specimen and using an interferometer, a reference optical path for conducting light is provided between a beam splitter and a reference mirror, and a measurement optical path for conducting light is provided between the beam splitter and the specimen, thereby providing an optical path difference between the reference optical path and the measurement optical path. Further, the reference mirror is tilted slightly, thereby forming interference fringes on detection means. It is possible to measure the surface shape of the specimen (measurement object) such as a wafer only by slightly tilting the reference mirror with a simple configuration and locate the accurate coordinate positions of foreign particles and pole pieces.

Abstract: A technique for selecting two or more wavelengths of output light by a simpler structure is provided. A laser apparatus includes a laser oscillation portion for oscillating laser light; a nonlinear crystal inputting the laser light from the laser oscillation portion as a fundamental wave, the nonlinear crystal converting the fundamental wave into a second harmonic wave and changing conversion efficiency according to a temperature thereof, the nonlinear crystal having a periodically poled structure; and a ratio control means for controlling a ratio of the fundamental wave and the second harmonic wave outputting from the nonlinear crystal by controlling the temperature of the nonlinear crystal.

Abstract: A distance measuring apparatus for measuring a distance to a target point in a target area comprises a laser oscillator for generating a laser beam having a first wavelength, a nonlinear crystal into which the laser beam having the first wavelength generated by the laser oscillator enters, the nonlinear crystal generating a laser beam having a second wavelength, a collimator lens at which the laser beam having the first wavelength generated by the laser oscillator and the laser beam having the second wavelength generated by the nonlinear crystal are concentrated and are transformed into parallel light flux, a laser device provided with the laser oscillator, the nonlinear crystal, and the collimator lens, an output unit for outputting the laser beam having the first wavelength and the laser beam having the second wavelength at the same time, which are emitted by the laser device, while scanning the target area, a selective reflective mirror for selectively reflecting the laser beam having the first wavelength

Abstract: The present invention relates to a device for forming a visible image which can draw a two-dimensional or a three-dimensional visible image without having a scanning locus of a laser beam recognized. The device for forming a visible image of the present invention is comprised of a laser source irradiating a laser beam in an invisible region, a scanning means for scanning said laser beam two-dimensionally or three-dimensionally, a condensing optical system for condensing said laser beam to a drawing scheduled point in the air for plasma emission of a gas, and a controlling means for controlling oscillation timing of said laser source and scanning timing of said scanning means so as to generate said plasma emission at said drawing scheduled point in a time series and for drawing a visible image as a residual image phenomenon of the plasma emission.

Abstract: A technique for selecting two or more wavelengths of output light by a simpler structure is provided. A laser apparatus includes a laser oscillation portion for oscillating laser light; a nonlinear crystal inputting the laser light from the laser oscillation portion as a fundamental wave, the nonlinear crystal converting the fundamental wave into a second harmonic wave and changing conversion efficiency according to a temperature thereof, the nonlinear crystal having a periodically poled structure; and a ratio control means for controlling a ratio of the fundamental wave and the second harmonic wave outputting from the nonlinear crystal by controlling the temperature of the nonlinear crystal.

Abstract: A technique for not causing a gap of the central beam axes depending on wavelengths of emitted light is provided. A laser apparatus includes a laser oscillation portion for oscillating laser light; a nonlinear crystal inputting a first output light from the laser oscillation portion, the nonlinear crystal outputting the first output light and a second output light which is a second harmonic wave of the first output light and has a central beam axis not corresponding to a central beam axis of the first output light; a central beam axis bending means for bending at least one central beam axis of the first output light and the second output light; and a optical fiber in which the edge is in a position or a neighborhood in which the central beam axes of the first output light and the second output light intersects.