OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 21, Iss. 13 — Jul. 1, 1982
  • pp: 2461–2464

Optical efficiency of LEDs with hemispherical lenses

Jaroslaw Jarominski  »View Author Affiliations


Applied Optics, Vol. 21, Issue 13, pp. 2461-2464 (1982)
http://dx.doi.org/10.1364/AO.21.002461


View Full Text Article

Enhanced HTML    Acrobat PDF (477 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In this paper formulas are derived that describe the optical efficiency of an LED package consisting of a hemispherical lens placed on the cylinder. The dependence of this efficiency on the H/R ratio and the epoxy coefficient of refraction is calculated. In calculations it is assumed that the semiconductor chip, believed to be the point source of radiation, is mounted on the optical axis of the LED package, and the absorption of nonscattering epoxy is small. As an example, the optical efficiency of the LED with H/R = 2.5 and n = 1.5 is calculated: it is equal to 37.4%.

© 1982 Optical Society of America

History
Original Manuscript: August 21, 1981
Published: July 1, 1982

Citation
Jaroslaw Jarominski, "Optical efficiency of LEDs with hemispherical lenses," Appl. Opt. 21, 2461-2464 (1982)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-21-13-2461

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

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
Log in to access OSA Member Subscription

« Previous Article

OSA is a member of CrossRef.

CrossCheck Deposited