A near infrared illuminator can facilitate the adjustment of an optical axis thereof with favorable accuracy. The near infrared illuminator can include: a light source configured to emit near infrared rays; and a projector lens configured to project the near infrared rays emitted from the light source forward to form a predetermined light distribution pattern in front thereof. The projector lens can include a light distribution control section configured to project part of the near infrared rays emitted from the light source forward to form the predetermined light distribution pattern, and a marker forming section configured to project part of the near infrared rays emitted from the light source forward to form an alignment marker for positioning the light distribution pattern at a predetermined position beside the light distribution pattern.
Near infrared illuminator
2015-07-14
Patent
Elektronische Ressource
Englisch
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 / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES |
Driver Eye Feature Extraction Based on Infrared illuminator
British Library Conference Proceedings | 2009
|