Dual-layer blazed grating fabricated by the roll-to-roll microreplication process for chromostereoscopy.
In this work we present the design and fabrication of a dual-layer blazed grating (DBG) to replace a single-layer blazed grating for chromostereoscopy. Based on the physiological and physical background, we first analyze the relationship between the performance of a grating pair and color-stereo effect. The DBG is composed of two materials of different indices and fabricated upon a polyethylene terephthalate film by two steps of a roll-to-roll microreplication process. With this dual-layer design, the fabrication tolerance in the blazed facets of the grating is three times looser and more achievable as compared with that of a grating composed of single material.
Department of Electrical Engineering, Feng Chia University, Taichung, 40724, Taiwan. chihlee@fcu.edu.tw
Chi-Hung
CH
Lee
Shih-Hsin
SH
Ma