Abstract

This research presents a novel design of the collimator, which uses total internal reflection (TIR), convex, and concave lenses for the natural light illumination system (NLIS). The concept of the NLIS is to illuminate building interiors with natural light, which saves energy consumption. The TIR lens is used to collimate the light, and convex and concave lenses are used to converge the light to the required area. The results have shown that the efficiency in terms of achieving collimated light using the proposed collimator at the output of the light collector is better than that of a previous system without a collimator.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Innovative design of light collimator based on a freeform microlens array

Kung-Jeng Wang, Hsi-Chi Chen, Xiao-Rong Wu, Pao-Hung Lin, Yi-Yung Chen, Chia-Min Lin, Yin-Ti Chen, Allen Jong-Woei Whang, and Chun-Han Chou
Appl. Opt. 53(29) H35-H43 (2014)

Freeform microstructure linear light emitter design for a natural light illumination system

Bo-Jian Chen, Bo-Yuan Gao, Irfan Ullah, Kuan-Yu Chen, Chun-Han Chou, Chia-Min Lin, Cheng-Ming Chang, Kai-Cyuan Jhan, and Allen Jong-Woei Whang
Appl. Opt. 54(28) E159-E164 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (15)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription