title: Depositing highly adhesive optical thin films on acrylic substrates.
abstract: Optical thin films are used to control the reflectance and transmittance of optical components. However, conventional deposition technologies applicable to organic (plastic) substrates typically result in weak adhesion. We overcame this problem by using vacuum deposition in combination with sputtering to directly deposit a SiO2 optical thin film onto an acrylic resin substrate. We observed neither yellowing nor deformation. The hardness of the film is 2H as measured by the pencil hardness test, indicating successful modulation of optical properties without sacrificing substrate hardness.
authors: Tomoaki
authors: T
authors: Takahashi
authors: Toshinori
authors: T
authors: Harada
authors: Hiroshi
authors: H
authors: Murotani
authors: Shigeharu
authors: S
authors: Matumoto