Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Full-frame projection displays using a liquid-crystal-on-silicon spatial light modulator for beam shaping and speckle suppression

Not Accessible

Your library or personal account may give you access

Abstract

This paper presents a full-frame laser projection display system in which a spatial light modulator (SLM) is used for beam shaping and speckle suppression. Phase-only computer-generated holograms (CGHs) are used to transform a cross section of the incident laser beam into a square nearly the same size as that of the display device. Under different initial conditions, the diffraction patterns generated by the CGHs possess identical intensity distributions but differ with regard to random phase distribution. Image speckles can be suppressed via the temporal addition of diffraction patterns from the CGHs when displayed by the SLM. The addition of 16 speckled images resulted in speckle suppression ratios of 0.290 in simulations and 0.345 under experimental conditions. Not only were the speckles suppressed, but the quality of the overall image was also improved considerably. The proposed approach presents a simple design with low power consumption and stable display architecture for application in pico-projectors.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Laser speckle reduction by phase range limited computer generated hologram in laser projection display system

Yan-Shuo Chang, Chia-Hsin Lin, Ku-Hui Hsu, Wei-Feng Hsu, Li-Jen Hsiao, and Hoang Yan Lin
Appl. Opt. 53(27) G157-G162 (2014)

Speckle suppression in scanning laser display

Victor Yurlov, Anatoly Lapchuk, Sangkyeong Yun, Jonghyeong Song, and Haengseok Yang
Appl. Opt. 47(2) 179-187 (2008)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved