LIGHT EMISSION SYSTEM USING LUMINOUS MATERIAL AND PORTABLE DEVICE WITH THE SAME

• Main Author: SUZUKI KENSAKU
• Format: Patent
• Language: English; Japanese
• Published: 04.12.2014
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; TELEPHONIC COMMUNICATION

PROBLEM TO BE SOLVED: To provide a light emission system capable of emitting light after light emission from a light source is finished even if time for exposure to external light is not enough, and to provide a portable device with the same.SOLUTION: A light emission system comprises: a luminescent layer 3 containing luminous material for emitting light by ultraviolet light; and a light source 1 for irradiating the luminescent layer with the ultraviolet light. The system may further comprise a coloring layer 4 having permeability above the luminescent layer 3. A portable device comprises the luminescent layer 3 on a surface of the portable device, and the light source 1 inside the portable device. 【課題】外光に曝露する時間が不十分であっても、光源の発光が終了した後に発光可能な発光システムおよびこれを備えた携帯機器を提供すること。【解決手段】本発明にかかる発光システムは、紫外光で発光する蓄光材料を含む発光層３と、前記発光層に紫外光を照射する光源１とを備えている。この発光システムは、発光層３よりも上側に、透過性を備える着色層４を更に備えてもよい。本発明にかかる携帯機器は、携帯機器の表面に発光層３を備え、前記携帯機器の内部に光源１を備えている。【選択図】図１