Light irradiation apparatus and laser radar apparatus

A light irradiation apparatus includes an optical window, a light source and an irradiation unit. The optical window is formed of a light-transmissive material. The light source is configured to emit irradiation light with linear polarization. The irradiation unit is configured to irradiate the irra...

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Bibliographische Detailangaben
Hauptverfasser:	Suzuki, Shunpei, Moriguchi, Chihiro
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING
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Beschreibung
Zusammenfassung:	A light irradiation apparatus includes an optical window, a light source and an irradiation unit. The optical window is formed of a light-transmissive material. The light source is configured to emit irradiation light with linear polarization. The irradiation unit is configured to irradiate the irradiation light emitted from the light source toward a preset irradiation range through the optical window. Moreover, the optical window has a shape such that the reflectivity of the irradiation light within a specified range is lower than or equal to a preset upper limit; the specified range is provided within the irradiation range.