title: Freeform microstructure linear light emitter design for a natural light illumination system.
abstract: The major factors of an illuminative environment are a high rendering index and uniformity. The natural light illumination system (NLIS) is used to guide sunlight for indoor illumination. The NLIS consists of three subsystems: collecting, transmitting, and emitting. Nowadays, a variety of light emitters are available for different illuminative environments. This paper proposes a linear microstructure to diffuse parallel light for indoor illumination. To increase uniformity and promote the illuminative area, the light emitter includes two microstructures for the distribution of light. Finally, the proposed light emitter gives illuminance uniformity and efficiency of 0.55% and 74.18%, respectively.
authors.forename: Bo-Jian
authors.initials: BJ
authors.lastname: Chen
authors.forename: Bo-Yuan
authors.initials: BY
authors.lastname: Gao
authors.forename: Irfan
authors.initials: I
authors.lastname: Ullah
authors.forename: Kuan-Yu
authors.initials: KY
authors.lastname: Chen
authors.forename: Chun-Han
authors.initials: CH
authors.lastname: Chou
authors.forename: Chia-Min
authors.initials: CM
authors.lastname: Lin
authors.forename: Cheng-Ming
authors.initials: CM
authors.lastname: Chang
authors.forename: Kai-Cyuan
authors.initials: KC
authors.lastname: Jhan
authors.forename: Allen Jong-Woei
authors.initials: AJ
authors.lastname: Whang