Ultracompact RGB laser diode module for near-to-eye displays

N. Primerov; J. Ojeda; S. Gloor; N. Matuschek; M. Rossetti; A. Castiglia; M. Malinverni; M. Duelk; C. Velez

doi:10.1117/12.2594243

20 June 2021 Ultracompact RGB laser diode module for near-to-eye displays

N. Primerov, J. Ojeda, S. Gloor, N. Matuschek, M. Rossetti, A. Castiglia, M. Malinverni, M. Duelk, C. Velez

Proceedings Volume 11788, Digital Optical Technologies 2021; 117880Q (2021) https://doi.org/10.1117/12.2594243
Event: SPIE Digital Optical Technologies, 2021, Online Only

Abstract

We demonstrate a miniaturized, full-color RGB light source module for near-to-eye display systems, incorporating three semiconductor laser diodes (LDs) that are integrated on a free-space, micro-optical bench together with collimation optics and wavelength filters. The ultra-compact package has a footprint of 4.4 mm x 4.15 mm with a height of 2.9 mm (0.053 cm³) and an optical output window for the collimated and collinearly aligned RGB beams. The light source module delivers up to 10 mW per color at low power dissipation values of 640 mW and provides low-divergent output beams having a high circularity and a diameter of 250-650 μm at a reference distance of 50 mm.

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Citation Download Citation

N. Primerov, J. Ojeda, S. Gloor, N. Matuschek, M. Rossetti, A. Castiglia, M. Malinverni, M. Duelk, and C. Velez "Ultracompact RGB laser diode module for near-to-eye displays", Proc. SPIE 11788, Digital Optical Technologies 2021, 117880Q (20 June 2021); https://doi.org/10.1117/12.2594243

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