Black optic display

Patent · Wed Jan 01 04:00:00 EST 1997

OSTI ID:870930

Veligdan, James T ^[1]

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1. Manorville, NY

An optical display includes a plurality of stacked optical waveguides having first and second opposite ends collectively defining an image input face and an image screen, respectively, with the screen being oblique to the input face. Each of the waveguides includes a transparent core bound by a cladding layer having a lower index of refraction for effecting internal reflection of image light transmitted into the input face to project an image on the screen, with each of the cladding layers including a cladding cap integrally joined thereto at the waveguide second ends. Each of the cores is beveled at the waveguide second end so that the cladding cap is viewable through the transparent core. Each of the cladding caps is black for absorbing external ambient light incident upon the screen for improving contrast of the image projected internally on the screen.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY
• Assignee: Associated Universities, Inc. (Washington, DC)
• Patent Number(s): US 5625736
• OSTI ID: 870930
• Country of Publication: United States
• Language: English

Related Subjects

/385/362/
absorbing
ambient
ambient light
beveled
black
bound
cap
caps
cladding
cladding layer
collectively
collectively defining
contrast
core
cores
defining
display
effecting
external
image
improving
incident
including
index
input
integrally
internal
internal reflection
internally
joined
layer
layers
layers including
light
light incident
light transmitted
oblique
opposite
optic
optical
optical display
optical wave
optical waveguide
optical waveguides
plurality
projected
reflection
refraction
respectively
screen
stacked
stacked optical
thereto
transmitted
transparent
viewable
waveguide
waveguides