Invention Grant
- Patent Title: Focal variable device system
-
Application No.: US16721709Application Date: 2019-12-19
-
Publication No.: US11204494B2Publication Date: 2021-12-21
- Inventor: Suntak Park , Bong Je Park , Seung Koo Park , Jae Woong Yoon , Eun Jin Shin
- Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Applicant Address: KR Daejeon
- Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Current Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Current Assignee Address: KR Daejeon
- Priority: KR10-2018-0169953 20181226
- Main IPC: G02B7/04
- IPC: G02B7/04 ; G02B26/08 ; G02B26/00
Abstract:
Provided is focal variable device system including a focus variable element including an absorbing layer, and an adjustable light source configured to cause an adjustable light to enter the focus variable element. The absorbing layer includes a thermal expansion material that absorbs the adjustable light and thermally expands.
Public/Granted literature
- US20200209613A1 FOCAL VARIABLE DEVICE SYSTEM Public/Granted day:2020-07-02
Information query
