LIGHT GUIDE BODY AND MANUFACTURING METHOD THEREOF, LIGHTING DEVICE USING THE LIGHT GUIDE BODY, AND DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a light guide body with excellent appearance quality having no wave generated.SOLUTION: A light guide body 7 has a light guide plate 71 of a constant thickness made of a thermoplastic transparent resin material and, when one surface in the thickness direction of the...

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Bibliographische Detailangaben
Hauptverfasser:	SAKIYAMA TETSUZO, SAKAI NATSUKA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING 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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a light guide body with excellent appearance quality having no wave generated.SOLUTION: A light guide body 7 has a light guide plate 71 of a constant thickness made of a thermoplastic transparent resin material and, when one surface in the thickness direction of the light guide plate 71 is defined as a first main surface 7a and the another surface in the thickness direction is defined as a second main surface 7b, and a surface extending along the thickness direction for connecting the first main surface 7a and the second main surface 7b is defined as an end surface 7L, a light deflection element 18 for deflecting light entered into the light guide plate 71 from the end face 7L to the second main surface 7b side is formed. At the time of assembly of the light guide body 7 on a lighting device, the first main surface 7a and the second main surface 7b are flat, and after the assembly, the light guide plate 71 is warped in convex shape on the first main surface 7a side as it receives heat from a light source, and maintains the convex shape.