Compact reflective system for ideal imaging concentration

N. Bokor, Kornél Jahn, N. I.R. Davidson

Research output: Article

Abstract

We propose a new design principle for optimal concentration of light with small diffusivity based on the conservation of local brightness in passive optical transformations. A coordinate transformation is applied on the incoming rays to compensate for the variations in local brightness by the focusing stage. We apply this analytic design for a compact reflective configuration for ideal imaging concentration of diffuse light such as sunlight in one dimension on an elongated target with arbitrary cross-sectional shape at the thermodynamic limit. As illustrations, we present the design for two different target geometries and verify its validity using numerical ray-tracing simulations. The same configuration can be used in reverse as an ideal collimator of a finite diffuse source.

Original languageEnglish
Pages (from-to)485-491
Number of pages7
JournalApplied Optics
Volume58
Issue number3
DOIs
Publication statusPublished - jan. 20 2019

Fingerprint

Imaging techniques
Luminance
brightness
coordinate transformations
Ray tracing
sunlight
collimators
configurations
ray tracing
diffusivity
conservation
Conservation
rays
Thermodynamics
thermodynamics
Geometry
geometry
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Compact reflective system for ideal imaging concentration. / Bokor, N.; Jahn, Kornél; Davidson, N. I.R.

In: Applied Optics, Vol. 58, No. 3, 20.01.2019, p. 485-491.

Research output: Article

Bokor, N. ; Jahn, Kornél ; Davidson, N. I.R. / Compact reflective system for ideal imaging concentration. In: Applied Optics. 2019 ; Vol. 58, No. 3. pp. 485-491.
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