Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Design of crossed-mirror array to form floating 3D LED signs

[+] Author Affiliations
Hirotsugu Yamamoto, Hiroki Bando, Ryousuke Kujime, Shiro Suyama

Univ. of Tokushima (Japan)

Proc. SPIE 8288, Stereoscopic Displays and Applications XXIII, 828820 (February 6, 2012); doi:10.1117/12.909879
Text Size: A A A
From Conference Volume 8288

  • Stereoscopic Displays and Applications XXIII
  • Andrew J. Woods; Nicolas S. Holliman; Gregg E. Favalora
  • Burlingame, California, United States | January 22, 2012

abstract

3D representation of digital signage improves its significance and rapid notification of important points. Our goal is to realize floating 3D LED signs. The problem is there is no sufficient device to form floating 3D images from LEDs. LED lamp size is around 1 cm including wiring and substrates. Such large pitch increases display size and sometimes spoils image quality. The purpose of this paper is to develop optical device to meet the three requirements and to demonstrate floating 3D arrays of LEDs. We analytically investigate image formation by a crossed mirror structure with aerial aperture, called CMA (crossed-mirror array). CMA contains dihedral corner reflectors at each aperture. After double reflection, light rays emitted from an LED will converge into the corresponding image point. We have fabricated CMA for 3D array of LEDs. One CMA unit contains 20 x 20 apertures that are located diagonally. Floating image of LEDs was formed in wide range of incident angle. The image size of focused beam agreed to the apparent aperture size. When LEDs were located three-dimensionally (LEDs in three depths), the focused distances were the same as the distance between the real LED and the CMA.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Hirotsugu Yamamoto ; Hiroki Bando ; Ryousuke Kujime and Shiro Suyama
"Design of crossed-mirror array to form floating 3D LED signs", Proc. SPIE 8288, Stereoscopic Displays and Applications XXIII, 828820 (February 6, 2012); doi:10.1117/12.909879; http://dx.doi.org/10.1117/12.909879


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.