LINE LIGHT GUIDE

• Main Authors: OSAWA MASAMI, UMETSU KENJI
• Format: Patent
• Language: English
• Published: 03.07.2003
• Edition: 7
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; 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; MEASURING; MECHANICAL ENGINEERING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TESTING; WEAPONS

PROBLEM TO BE SOLVED: To radiate belt-like light having a linear light spot whose light intensity distribution is made uniform by a small-sized optical system without using a lens system to widen light. SOLUTION: A linear Fresnel lens (4) in which the light emitting end (3out) of a bundle fiber (3) to guide irradiating light is formed into a linear shape and by which the linear light spot is formed by condensing diffused light emitted from the light emitting end (3out) is positionally adjusted back and forth along the emitting optical axis (FX) of the bundle fiber (3). COPYRIGHT: (C)2003,JPO