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Holographic printing for generating large-angle freeform holographic optical elements

Hosung Jeon, Sungjin Lim, Youngjin Jeon, Woongjae Baek, Daerak Heo, Youngmin Kim, Hwi Kim, and Joonku Hahn

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Abstract

We propose a holographic printing technique for generating highly efficient large-deflection-angle freeform holographic optical elements (HOEs). For industrial device applications, the optical efficiency and deflection angle of HOEs are critical. To fabricate a high-frequency volume grating in a hogel, we design an optomechanical hogel recording system with a high angle deflection capability, which contrasts with the conventional printing scheme, the wavefront holographic printing technique featuring a paraxial deflection angle. With the proposed system, a large-deflection-angle HOE is experimentally demonstrated, and short-throw holographic caustic projection patterns are realized.

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Supplementary Material (2)

NameDescription
Visualization 1       Off-axis long-throw caustic HOE projection
Visualization 2       Short-throw HOE projection

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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