KEYWORDS: 3D displays, 3D image processing, 3D volumetric displays, Light emitting diodes, Projection systems, LED displays, 3D image reconstruction, Polarization, Switching, Light sources
We have developed a new volumetric 3-D display using the multi-varifocal lens and high-speed 2-D display. Floating
clear 3-D image in space can be successfully obtained. Our volumetric 3-D image is composed of many 2-D layered
images by using multi-varifocal lens. Many 2-D images can be layered by changing their depth position using the
discrete focal length change of multi-varifocal lens. The high-speed multi-varifocal lens is composed of several sets of a
birefringent lens and a polarization switching device. The total lens power is the sum of the lens powers of these sets.
The number of lens sets, N, can yield 2N variations of total focal lengths. In order to re-position many 2-D images within
afterimage time, high-speed 2-D display is newly constructed by compact projector array using LED light sources. These
projector images are projected to the same position of one screen. By switching these projectors quickly, 2-D images on
the screen can be displayed at high-speed. This high-speed 2-D display can successfully provide bright and clear 2-D
layered images by using point light sources of LED.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.