OPTICAL PLATE, LIGHT IRRADIATION DEVICE, OPTICAL MEASUREMENT DEVICE, LIGHT IRRADIATION METHOD AND OPTICAL MEASUREMENT METHOD

• Main Authors: FUKUMITSU KENJI, YAMAMOTO SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 14.12.2015
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; 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; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LIGHTING; MACHINE TOOLS; MEASURING; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SOLDERING OR UNSOLDERING; SYSTEMS THEREOF; TESTING; TRANSPORTING; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide an optical plate, a light irradiation device, an optical measurement device, a light irradiation method, and an optical measurement method that enable irradiation of light according to a desired irradiation condition.SOLUTION: An optical plate 50 is an optical plate for irradiating a measurement object A with light, and the optical plate 50 comprises: a lateral surface 50f for making light incident; a principal surface 50a for outputting the light; a rear surface 50b that faces the principal surface 50a; and a light diffusion unit 60 that is formed at least inside the optical plate 50 by convergence of laser light L, and is for diffusing the light. The lateral surface 50f is a surface between the principal surface 50a and the rear surface 50b, and the light to be incident from the lateral surface 50f is diffused in the light diffusion unit 60 to be output from the principal surface 50a. 【課題】所望の照射条件に応じた光の照射が可能な光学プレート、光照射装置、光測定装置、光照射方法、及び、光測定方法を提供する。【解決手段】光学プレート５０は、測定対象物Ａに光を照射するための光学プレートである。光学プレート５０は、光の入力するための側面５０ｆと、光を出力するための主面５０ａと、主面５０ａに対向する裏面５０ｂと、レーザ光Ｌの集光により当該光学プレート５０の少なくとも内部に形成され、光を拡散するための光拡散部６０と、を備える。側面５０ｆは、主面５０ａと裏面５０ｂとの間の面である。側面５０ｆから入力された光は、光拡散部６０において拡散され、主面５０ａから出力される。【選択図】図１