公开(公告)号：US10310142B2

公开(公告)日：2019-06-04

申请号：US14799039

申请日：2015-07-14

Applicant: AGC Inc.

Inventor： Minoru Tamada ,  Yusuke Kobayashi ,  Tomonobu Senoo

IPC: G02B1/11 ,  G02B5/02 ,  G02B1/118

Abstract: There is provided an optical device including a display device, and a transparent substrate that is disposed on a side of a display surface of the display device. When the transparent substrate is evaluated by using a three index values of a resolution index value T, a reflection image diffusiveness index value R, and a sparkle index value S, the following conditions are satisfied: the resolution index value T≤0.2, the reflection image diffusiveness index value R≥0.2, and the sparkle index value S≤60.