Light modulating device

Patent · Sun Jan 01 04:00:00 EST 1989

OSTI ID:867223

Rauh, R David ^[1]; Goldner, Ronald B ^[2]

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1. Newton, MA
2. Lexington, MA

In a device for transmitting light, means for controlling the transmissivity of the device, including a ceramic, reversibly electrochromic, crystalline element having a highly reflective state when injected with electrons and charge compensating ions and a highly transmissive state when the electrons and ions are removed, the crystalline element being characterized as having a reflectivity of at least 50% in the reflective state and not greater than 10% in the transmissive state, and means for modulating the crystalline element between the reflective and transmissive states by injecting ions into the crystalline element in response to an applied electrical current of a first polarity and removing the ions in response to an applied electrical current of a second polarity.

• Research Organization: EIC Laboratories Inc
• DOE Contract Number: AC03-82CE30746
• Assignee: EIC Laboratories, Inc. (Norwood, MA)
• Patent Number(s): US 4889414
• OSTI ID: 867223
• Country of Publication: United States
• Language: English

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10
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applied
applied electric
ceramic
characterized
charge
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compensating
controlling
crystalline
crystalline element
current
device
electrical
electrical current
electrochromic
electrons
element
highly
highly reflective
including
injected
injecting
light
light modulating
means
modulating
modulating device
polarity
reflective
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removed
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reversibly
transmissive
transmissivity
transmitting
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