Abstract:
PROBLEM TO BE SOLVED: To provide an integrated optical system which can be made small and thin. SOLUTION: There are included: an optical bench 10 on which a light source generating light, a main photodetector 17 receiving light, and a monitor photodetector 19 are arranged; a lens unit 70 coupled to the optical bench; an optical path separating member 50 separating an optical path of light emitted from the light sources 15 and propagating toward the lens unit 70 side and an optical path of light being made incident from the lens unit 70 side and propagating; and an optical path forming unit 30 provided with a first mirror 31 switching a propagation direction of light emitted from the light source 15 and being made incident and propagating it to the lens unit 70 side and a second mirror 35 switching a propagation direction of light being made incident from the lens unit 70 side and reflected by the first mirror 31 and propagating it to the main photodetector 17, and coupled to the optical bench 10. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an optical apparatus, in which the curvature of a scanning line can be corrected without causing deterioration of the optical performance of a reflection mirror, and to provide an image forming apparatus furnished with the optical apparatus. SOLUTION: The optical apparatus, in which the light emitted from a light source is deflected and scanned with a polygon mirror and the light is reflected with the reflecting mirror and radiated, has a curvature adjustment means which bend the reflection face of the reflection mirror; a bearing surface 40 supporting one side of the reflection mirror in a longitudinal direction is composed in a half-circular column shape, extending in a direction perpendicular to a scanning direction; and a bearing surface 42 supporting the other side is composed in a half-spherical shape. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a survey system, capable of transmitting guide light over a sufficiently wide range even with low power, in a survey system for transmitting the guide light, giving the information of the direction of a target from a target side to survey equipment. SOLUTION: The survey system comprises a target 60, having a reflex reflector 62 for reflecting the light to the arriving direction thereof, and the survey equipment 50, having an autocollimator for matching the collimation axis of the reflex reflector with that of a telescope 54. The target comprises a guide-light light transmitting unit 66, for radiating a guide light 64, and scans widely in the horizontal direction as the guide light and fan beams with a narrow vertical width in the vertical direction. The survey equipment has a direction detector 56 for receiving the guide light and detect the direction of the light transmitting unit for the guide light, and a preparation means for collimation, for directing the telescope to the reflex reflector is provided, based on the output signals from the direction detector, before starting the autocollimator. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To realize a comparatively low-cost imaging apparatus which constitutes a plurality of imaging systems on the component level in the form of an integrated imaging system without individually arranging a plurality of independent cameras, and allows common components to be used for their power sources, frames, etc. on the whole of the imaging apparatus to simplify the apparatus scale. SOLUTION: The apparatus comprises, as a basic constitution, an imaging means composed of a plurality of usual imaging lenses and image receiving parts corresponding thereto, a means for inputting control signals for setting the imaging direction of the imaging means and the picture range, a picture range selecting means for automatically setting a predetermined picture range after detecting the running direction and the vehicle speed to a picture taken by the imaging means or manually setting a picture range the operator of a mobile vehicle needs, and a means for outputting thus selected picture signals. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a purging air-flow channel structure which efficiently collects or separates dust in purging air. SOLUTION: The structure includes an air flow channel 13 allowing the purging air 9 to circulate. A separation section 8, which performs inertial separation of the dust 10 in the purging air 9 and a filter section 11, which collects the dust 10 in the purging air 9 are provided in the air flow channel 13. The filter section 11 is provided upstream of the separation section 8 in the air flow channel 13. The filter section 11 is provided with at least two shielding sections 11a, 11b, having a plurality of passage holes in the width direction which allow the purging air 9 to pass through. Each shielding section is sequentially arranged at a predetermined spacing apart from each other from the upstream to the downstream of the air flow channel 13. The wall of each shielding section facing upstream is provided at a position, against which the purging air 9, passing through the passage holes of the shielding section neighboring in the upstream collides. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a projection encoder based on a three-lattice theory equipped with an inexpensively-manufacturable transmission lattice having high mechanical strength. SOLUTION: This projection linear encoder 1 has an SOQ substrate 5 where the transmission lattice 3 and a lattice-shaped photodiode group 4 are formed, and a reflecting lattice board 7 where a facing reflecting lattice 6 is formed. A shielding film 3a comprising a metal thin plate or the like is formed on the surface of a glass substrate 9 on the SOQ substrate 5, and the transmission lattice 3 is formed by patterning the film. The photodiodes 4 are formed by an epitaxial growth method in a silicon layer 9 on the SOQ substrate 5. Hereby, the transmission lattice 3 having high mechanical strength can be manufactured more inexpensively than the case wherein the transmission lattice is manufactured by forming a through hole into a silicon substrate by etching. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an optical scanning system which is short in length but has a long back focus and can reduce the jitters in a sub-scanning direction caused by the change of the scanning point on the polygon mirror and its face tangle. SOLUTION: The laser beam flux emitted from the light emitting spot of a laser light source 10 passes a first optical system 13 and forms a scanning line on the surface to scan passing a second optical system 18 while dynamically deflected by a polygon mirror 15. When representing the magnification of the sub-scanning by m in the second optical system 18, the focus distance by f[mm] in the cross-section of the second optical system, and half the scanning width by w [mm] and when ¾ m ¾> 1.85, the inscribed radius r [mm] of this polygon mirror 15 satisfies the following conditional expression (1). Formula (1):r COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a high-density information recording medium with which a probe and recording medium are non-contact and information can be recorded, reproduced and erased even if low electric fields are impressed thereto, and to provide an information recording device using the same. SOLUTION: The high-density information recording medium can be realized by the information recording device provided with the information recording medium having lower electrodes, an insulating layer, a photoelectric releasing layer formed with protrusions for releasing photoelectrons and a dielectric layer for holding the photoelectrons, a stage for supporting the information recording medium, a scanner for driving the stage, chips for forming electric fields, a cantilever for supporting the chips, a circuit section for impressing a driving signal, and information recording and erasing signals to the scanner and the cantilever, and a light source for irradiating the information recording medium with light. The information recording device which reduces the wear of the information recording medium and the probe without contact, can increase the recording speed and enhances energy efficiency by utilizing light energy can be realized. COPYRIGHT: (C)2004,JPO