LIGHTING DEVICE AND METHOD FOR PRODUCING THE SAME

• Main Author: KAWAKATSU AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2016
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a lighting device having high durability and to provide a method for producing the lighting device.SOLUTION: A lighting device comprises a light-emitting part, a light transmission member, a first layer and a second layer. The light-emitting part includes a light-emitting element radiating light and a phosphor layer. The light transmission member has optical transparency. The first layer is formed on a surface at a side opposite to the light-emitting part of the light transmission member and is made of resin the major component of which is the same as that of the light transmission member. The second layer is formed on a surface at the side of the light-emitting part of the light transmission member and is made of resin the major component of which is the same as that of the light transmission member. The first layer includes a first material having a suction peak in a visible region. The second layer includes a second material having a suction peak in a visible region different from that of the first material. The wavelength of the suction peak of the first material is different from the wavelength of the suction peak of the second material.SELECTED DRAWING: Figure 1 【課題】耐久性の高い照明装置及びその製造方法を提供する。【解決手段】実施形態によれば、発光部と、光透過部材と、第１層と、第２層と、を含む照明装置が提供される。前記発光部は、光を放射する発光素子と、蛍光体層と、を含む。前記光透過部材は、光透過性である。前記第１層は、前記光透過部材の前記発光部と反対側の表面に設けられ、前記光透過部材と主成分が同じ樹脂からなる。前記第２層は、前記光透過部材の前記発光部側の表面に設けられ、前記光透過部材と主成分が同じ樹脂からなる。前記第１層は、可視域に吸収ピークを有する第１材料を含む。前記第２層は、前記第１材料とは異なる可視域に吸収ピークを有する第２材料を含む。前記第１材料の前記吸収ピークの波長は、前記第２材料の前記吸収ピークの波長とは異なる。【選択図】図１