OPTICAL MEMBER, LIGHT-RECEIVING DEVICE, DISTANCE MEASURING DEVICE, MOBILE BODY, AND METHOD FOR MANUFACTURING OPTICAL MEMBER

• Main Authors: SUGAYA TAKASHI, WATABE JUN, HOSONO NOBUHITO
• Format: Patent
• Language: English; Japanese
• Published: 09.02.2023
• Subjects: ACCESSORIES THEREFOR; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTROGRAPHY; GYROSCOPIC INSTRUMENTS; HOLOGRAPHY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHOTOGRAPHY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

To provide an optical member which can suppress yellow discoloration of a resin base material, and film floating between the resin base material and a film provided on the surface of the resin base material.SOLUTION: An optical member has a plurality of films on the surface of a resin base material, wherein the plurality of films include a first film that is formed on the side of the resin base material and has relatively large defect density, and a second film that is formed outside the first film and has relatively small defect density.SELECTED DRAWING: Figure 2 【課題】樹脂基材の黄変と、樹脂基材とその表面に設けられる膜との間の膜浮きを抑制することができる光学部材を提供する。【解決手段】本発明に係る光学部材は、樹脂基材の表面に複数の膜を備える光学部材であって、前記複数の膜は、前記樹脂基材側に形成され、相対的に欠陥密度が大きい第１の膜と、該第１の膜よりも外側に形成され、相対的に欠陥密度が小さい第２の膜と、を含む。【選択図】図２