LIGHT SOURCE DEVICE FOR NOTIFICATION

• Main Authors: MUKAI KENJI, TAGAMI NAOKI, YAGI YUJI, MATSUBAYASHI YOKO, KODAMA HIROMI
• Format: Patent
• Language: English; Japanese
• Published: 12.12.2023
• Subjects: BLASTING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; 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

To provide a light source device for notification, capable of securing an appearance adopted to a leaf color.SOLUTION: In a light source device 3 for notification, when a color degree point of a reference light source is set to (U*0, V*0) in a color degree diagram of (U*, V*) corresponded to a color chip of a leaf color, the color degree point when the light source device for the notification is set to a sample light source is set to (U*1, and V*1), a length of a first line segment connecting an original point and the color degree point of the reference light source is set to L0, a length of second line segment connecting the original point and the color degree point of the sample light source is set to L1, an angle formed by the first line segment and the second segment is set to θ(°), and L0=((U*0)2+(V*0)2)1/2, L1=((U*1)2+(V*1)2)1/2, θ=(tan-1(V*1/U*1)-tan-1(V*0/U*0))×(180/π), and r=L1/L0 are satisfied, the following relation of -2.5≤θ≤4 and 0.9≤r≤1.25 is satisfied.SELECTED DRAWING: Figure 2 【課題】木の葉色に適した見え方を確保できる報知用光源装置を提供する。【解決手段】報知用光源装置３は、木の葉色の色票に対応する（Ｕ＊，Ｖ＊）色度図において、基準光源の色度点を（Ｕ＊０，Ｖ＊０）とし、当該報知用光源装置を試料光源としたときの色度点を（Ｕ＊１，Ｖ＊１）とし、原点と前記基準光源の色度点とを結ぶ第１線分の長さをＬ０とし、原点と前記試料光源の色度点とを結ぶ第２線分の長さをＬ１とし、前記第１線分と前記第２線分とのなす角をθ（°）とし、Ｌ０＝（（Ｕ＊０）２＋（Ｖ＊０）２）１／２、Ｌ１＝（（Ｕ＊１）２＋（Ｖ＊１）２）１／２、θ＝（ｔａｎ－１（Ｖ＊１／Ｕ＊１）－ｔａｎ－１（Ｖ＊０／Ｕ＊０））×（１８０／π）、ｒ＝Ｌ１／Ｌ０、としたときに、－２．５≦θ≦４、かつ、０．９≦ｒ≦１．２５の関係を満たす。【選択図】図２