NEAR-INFRARED ILLUMINATOR

• Main Author: OTSUKA HIDEO
• Format: Patent
• Language: English
• Published: 26.12.2013
• Subjects: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; PERFORMING OPERATIONS; SEMICONDUCTOR DEVICES; SYSTEMS THEREOF; TRANSPORTING; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To simply adjust an optical axis of a near-infrared illuminator with suitable accuracy.SOLUTION: A near-infrared illuminator 1 forming a light distribution pattern Pin front thereof includes infrared LEDs 71 for emitting near-infrared rays, and a projecting lenses 81 for respectively irradiating forward the near-infrared rays emitted from the infrared LEDs 71. Each projecting lens 81 has a light distribution control section 81a for forming the light distribution pattern Pby irradiating forward the near-infrared rays emitted from the infrared LEDs 71, and a marker forming section 81b for forming an alignment marker Mfor positioning the light distribution pattern Pat a designated location on a side of the light distribution pattern Pby irradiating foward the near-infrared rays emitted from the infrared LEDs 71.