Acta Photonica Sinica, Volume. 45, Issue 2, 226001(2016)
Analysis and Measurement of Ultrahigh Reflectivity Retroreflection Film of Micro Cutting Cube Corner Prisms
The reflection property of the micro cutting cube corner prism film with ultrahigh retroreflection is analyzed theoretically by the method of geometrical optics, and verified by optical simulation software. The principle of the ultrahigh retroreflection property was illustrated and compared with the traditional micro cube corner prism film. Results indicate that, parallel light can be totally retroreflected if perpendicularly striking the bottom of the micro cutting cube corner prism unit and ignoring optical absorption of materials, while the retroreflectivity of the traditional micro cube corner prism unit is 66.7%. The simulation retroreflectivity of this two type films are 92.3% and 62.4% respectively. The retroreflection measuring method for film is established and the reflectivities of two type films abovementioned are measured which are 67.8% and 39.5% respectively.
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JI Yun, HUANG Meizhen, LI Xia, ZOU Ye, SONG Biao. Analysis and Measurement of Ultrahigh Reflectivity Retroreflection Film of Micro Cutting Cube Corner Prisms[J]. Acta Photonica Sinica, 2016, 45(2): 226001
Received: Sep. 22, 2015
Accepted: --
Published Online: Apr. 1, 2016
The Author Email: Yun JI (jiyun9008@163.com)