A photodetection device has a light passing part in an upper portion, a light guiding member, and a photodetection element in a lower portion. Light passing through the light passing part is guided by the light guiding member to be detected by the photodetection element. The light guiding member has an incident curved surface provided annularly around a central axis on a side of the light passing part, and a reflective curved surface provided around the central axis inside the incident curved surface so as to be opposed to the incident curved surface. The light guiding member reflects light at the reflective curved surface to guide the light to a light receiving surface of the photodetection element, the light passing through the light passing part and entering the incident curved surface at a predetermined inclination angle.


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    Title :

    Photodetection device having a light passing part, a light guide member, and a photodetection element


    Contributors:

    Publication date :

    2016-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01J Messen der Intensität, der Geschwindigkeit, der spektralen Zusammensetzung, der Polarisation, der Phase oder der Pulscharakteristik von infrarotem, sichtbarem oder ultraviolettem Licht , MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein




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