Light modulating device
Abstract
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.
- Inventors:
-
- Newton, MA
- Lexington, MA
- Issue Date:
- Research Org.:
- EIC Laboratories Inc
- OSTI Identifier:
- 867223
- Patent Number(s):
- 4889414
- Assignee:
- EIC Laboratories, Inc. (Norwood, MA)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- AC03-82CE30746
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- light; modulating; device; transmitting; means; controlling; transmissivity; including; ceramic; reversibly; electrochromic; crystalline; element; highly; reflective; injected; electrons; charge; compensating; transmissive; removed; characterized; reflectivity; 50; 10; injecting; response; applied; electrical; current; polarity; removing; crystalline element; transmitting light; highly reflective; electrical current; charge compensating; applied electric; modulating device; light modulating; /359/
Citation Formats
Rauh, R David, and Goldner, Ronald B. Light modulating device. United States: N. p., 1989.
Web.
Rauh, R David, & Goldner, Ronald B. Light modulating device. United States.
Rauh, R David, and Goldner, Ronald B. Sun .
"Light modulating device". United States. https://www.osti.gov/servlets/purl/867223.
@article{osti_867223,
title = {Light modulating device},
author = {Rauh, R David and Goldner, Ronald B},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}