PROBLEM TO BE SOLVED: To provide a photosensor which prevents deterioration of detection accuracy, and an HUD device.SOLUTION: A photosensor includes a detection element 52 for detecting light intensity and a cylindrical tube section 54 having openings 57a, 57b on each end and an inner bore 58 whose diameter DI becomes gradually smaller toward the detection element 52. The tube section 54 splits incident light entering from a side opposite to the detection element 52 into reflection light, which is collected toward the detection element 52 by reflection, and transmission light which is discharged to outside by being transmitted through the tube section 54.
【課題】検出精度が悪化することを避ける光センサ及びHUD装置を提供する。【解決手段】光センサは、光量を検出する検出素子52と、両端に開口57a,57bを有し、検出素子52に向かう程、内周孔58の径DIが小さくなる筒状の筒部54とを備え、筒部54は、検出素子52とは反対側から入射する入射光を、反射により検出素子52に向けて集光される反射光と、透過により筒部54の外側に放出される透過光とに分ける。【選択図】図5
PHOTOSENSOR AND HEAD-UP DISPLAY DEVICE
光センサ及びヘッドアップディスプレイ装置
2015-06-11
Patent
Elektronische Ressource
Japanisch
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |
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