LIGHT GUIDE AND IMAGE READING DEVICE

• Main Authors: FUJIUCHI AKIKO, ARIMOTO HIRONOBU, MATSUZAWA TAKU
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2018
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

A light guide (1) is equipped with: a first emission section (1b) for emitting first outgoing light; a second emission section (1c) for emitting second outgoing light in a different direction from that of the first outgoing light; and a reflection section (1a) for reflecting light which enters the inside of the light guide toward the first emission section (1b) and toward the second emission section (1c). The first emission section (1b) and the second emission section (1c) respectively have a first curved surface and a second curved surface each having a convex cross-section orthogonal to thelength direction thereof. The second emission section (1c) is connected to the first emission section (1b) in a direction orthogonal to the length direction. In a plane facing the first emission section (1b) and the second emission section (1c), the reflection section (1a) is located at a position which is shifted in a direction orthogonal to the length direction from the position where a normal to the plane passes throug