Invention Grant
- Patent Title: Color contrast enhancing sunglass lens
- Patent Title (中): 色彩对比度增强太阳眼镜
-
Application No.: US13618307Application Date: 2012-09-14
-
Publication No.: US08733929B2Publication Date: 2014-05-27
- Inventor: Michael Chiou , Shih-Lung Huang
- Applicant: Michael Chiou , Shih-Lung Huang
- Applicant Address: TW Chia Yi County
- Assignee: Cornerstone Optical Co., Ltd.
- Current Assignee: Cornerstone Optical Co., Ltd.
- Current Assignee Address: TW Chia Yi County
- Agency: Ladas & Parry, LLP
- Priority: TW101113233 20120413
- Main IPC: G02C7/10
- IPC: G02C7/10

Abstract:
A color contrast enhancing sunglass lens includes a lens body and a multi-layer coating disposed on the lens body. The multi-layer coating includes a set of alternating layers formed of materials having different refractive indices and confines the transmission of visible light to a predetermined spectral profile having at least three high transmission bands that include blue, green and red bands and that have a maximum of spectral transmittance no less than 60%, three low transmission bands that include purple, cyan and yellow bands and that have a minimum of spectral transmittance no greater than 40%, and no spectral transmittance being less than 15% between 475 and 650 nm. The color contrast enhancing sunglass lens as disclosed meets the ANSI specification Z80.3-2009 section 4.6.3.3.
Public/Granted literature
- US20130271725A1 COLOR CONTRAST ENHANCING SUNGLASS LENS Public/Granted day:2013-10-17
Information query