To provide an optical member capable of removing water droplets on a surface through a simple method and keeping a captured image clear when used as a lens.SOLUTION: An optical member 10 is provided, comprising a principal surface portion 11 having a continuously changing water contact angle, and a non-principal surface 12 surrounding the principal surface 11, the non-principal surface 12 having a groove 13 provided in a region thereof along a region of the principal surface portion 11 having water contact angles relatively smaller than those of the rest.SELECTED DRAWING: Figure 1
【課題】簡便な方法で表面の水滴を除去し、レンズに用いた場合に撮影画像を明瞭に維持する。【解決手段】光学部材10は、水に対する接触角が連続的に変化する主面部11と、主面部11の外側に位置する非主面部12と、を備え、非主面部12における、主面部11の水に対する接触角が他よりも相対的に小さい領域に沿った領域には、溝部13が備えられている。【選択図】図1
OPTICAL MEMBER AND MANUFACTURING METHOD THEREFOR
光学部材及び光学部材の製造方法
2020-06-25
Patent
Electronic Resource
Japanese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL / C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS |