OBJECT DETECTION APPARATUS AND INFORMATION ACQUISITION DEVICE

PROBLEM TO BE SOLVED: To provide an information acquisition device capable of stably irradiating a target area with laser light having a dot pattern while simplifying and miniaturizing the device, and an object detection apparatus mounted with the same.SOLUTION: A light emitting unit 10 and a light...

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Bibliographische Detailangaben
Hauptverfasser:	IWATSUKI NOBUO, UMEDA KATSUMI, MURANISHI TOMOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DETECTING MASSES OR OBJECTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTROGRAPHY GEOPHYSICS GRAVITATIONAL MEASUREMENTS GYROSCOPIC INSTRUMENTS HOLOGRAPHY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHOTOGRAPHY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an information acquisition device capable of stably irradiating a target area with laser light having a dot pattern while simplifying and miniaturizing the device, and an object detection apparatus mounted with the same.SOLUTION: A light emitting unit 10 and a light receiving unit 20 are placed side by side on a baseplate 300. The light emitting unit 10 comprises: a laser light source 110; a collimator lens 120; a reflection mirror 130 for reflecting laser light; a DOE (Diffractive Optical Element) 140 converting the reflected laser light into laser light having a dot pattern; and an ACC (Auto Current Control) control circuit for maintaining electric current supplied to the laser light source 110 at a predetermined level. The laser light source 110, the collimator lens 120, and the reflection mirror 130 are linearly arrayed along a surface of the baseplate 300, and the DOE 140 faces a target area.