Patent ID: 9080742
Filing Date: 2015-07-14
Classification: B60Q,F21S,F21V,G02B,H01L

Abstract:
1. A near infrared illuminator for projecting near infrared light forward, comprising: 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 of the projector lens, the projector lens including a light distribution control section disposed substantially at the center of the projector lens and configured to project part of the near infrared rays emitted from the light source forward to form the predetermined light distribution pattern, which is a horizontally long light distribution pattern, and a marker forming section disposed substantially at a periphery of the projector lens and around the light distribution control section and configured to receive part of the near infrared rays emitted from the light source and refract the received near infrared rays laterally so that the exiting near infrared rays are projected forward and at an angle that diverges away from the optical axis to form an alignment marker with a spot shape at a predetermined position that is separate from and located beside the light distribution pattern and disposed a prescribed distance away from the light distribution pattern in order to position the light distribution pattern.