A dual-directional light-control film with a high-sag and high-asymmetrical-shape microlens array fabricated by a UV imprinting process
作者： Ta-Wei Lin , Chi-Feng Chen , Jauh-Jung Yang , Yunn-Shiuan Liao
DOI: 10.1088/0960-1317/18/9/095029
关键词: Optics 、 Microlens 、 Cylindrical lens 、 Photolithography 、 Collimated light 、 Lithography 、 Lens (optics) 、 Materials science 、 Gapless playback 、 Brightness
摘要: A dual-directional light-control film with a high-sag and high-asymmetric-shape long gapless hexagonal microlens array fabricated by an ultra-violent (UV) imprinting process is presented. Such lens designed ray-tracing simulation micro-replication including gray-scale lithography, electroplating UV curing. The shape of the similar to that near half-cylindrical periodical ripple. measurement results prototype show incident lights using collimated LED FWHM dispersion angle, 12°, are diversified differently in short axes. numerical experimental FWHMs view angle for angular brightness axis directions through about 34.3° 18.1° 31° 13°, respectively. Compared result, errors axes 5% 16%, Obviously, asymmetric can realize aim controlled brightness. be used as power saving screen compared convention diffusing application rear projection display.
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