Design of Multilayer Planar Light Guide Concentrators

Fennig, Eryn A.; Schmidt, Greg; Moore, Duncan T.

doi:10.1364/ose.2017.rw3b.4

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…A simulation technique was used to optimize the distribution of the micropatterns, using injection-molded light guide plates to improve the luminance uniformity [5]. Other methods have involved a highly directional light guide plate based on a V-Groove microstructure [6][7][8], a directional backlighting system using a light guide with prism microstructures [9][10][11], a hybrid light guide plate design for backlights [12][13][14], a multilayer planar light guide design [15], a method of harnessing the diffraction characteristics of a submicrometer grating for backlight [16], a novel feasible digital laser-blasting method to fabricate a light guide plate [17], and using UV roll-to-plate imprint lithography to fabricate light guide plates with microdot patterns [18].…”

Section: Introductionmentioning

confidence: 99%

A Light Guide Plate That Uses Asymmetric Intensity Distribution of Mini-LEDs for the Planar Illuminator

Pai

Chen

et al. 2019

Crystals

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Traditional backlights are designed with new dot patterns, and then injection molding, laser beam fabrication, or UV (Ultraviolet) roll-to-plate imprinting is used to apply dot patterns to a light guide plate—the process consumes considerable time and resources. Therefore, we propose a novel light guide design that does not use a dot pattern. We designed an asymmetric intensity distribution of mini-LEDs (Light Emitting Diode) and a light guide plate with a fully printed diffusion reflection on the bottom surface for a planar illuminator. The design rules for the proposed architecture are described in this paper. The archetype design with a 152.4 mm circular down-light has a diameter of 143 mm for the planar light source module. The experiment achieved a total efficiency of 85% and uniformity of 92.6%.

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Section: Introductionmentioning

confidence: 99%

A Light Guide Plate That Uses Asymmetric Intensity Distribution of Mini-LEDs for the Planar Illuminator

Pai

Chen

et al. 2019

Crystals

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Glass light pipes for solar concentration

Madsen

Doğan

Morrison

et al. 2018

Laser-Based Micro- And Nanoprocessing XII

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The matrix solution of the 4×4 problem by the Wentzel-Kramers-Brillouin method for a planar inhomogeneous anisotropic layer

Moiseeva¹,

Moiseev²

2018

Computer Optics

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Using methods of classical electrodynamics, we consider the oblique incidence of a plane electromagnetic wave on a twisted planar anisotropic inhomogeneous layer, in which the optical axis changes direction with respect to the plane of incidence. We consider the general case when all components of the permittivity tensor of the medium are nonzero functions of the transverse coordinate in the layer. Using the Wentzel-Kramers-Brillouin method, we obtain in the initial approximation a 4×4-matrix solution for the projections of the fields of an electromagnetic wave in an inhomogeneous anisotropic medium. The matrix reflection coefficients are calculated and shown to depend on the torsion angle of the medium.

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Design of Multilayer Planar Light Guide Concentrators

Cited by 3 publications

References 3 publications

A Light Guide Plate That Uses Asymmetric Intensity Distribution of Mini-LEDs for the Planar Illuminator

A Light Guide Plate That Uses Asymmetric Intensity Distribution of Mini-LEDs for the Planar Illuminator

Glass light pipes for solar concentration

The matrix solution of the 4×4 problem by the Wentzel-Kramers-Brillouin method for a planar inhomogeneous anisotropic layer

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