Multiple channel data writing device
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United States of America Patent
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Dec 26, 2000
Grant Date -
N/A
app pub date -
Jun 2, 1998
filing date -
Jun 2, 1998
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Abstract
An integrated optoelectronic chip 116 produces multiple modulatable outputs in a read write head. An array of light guides in a light guide switchyard has some terminations at output apertures and some at beam dumps within the read/write head. The beam dumps absorb and dissipate any light conveyed to them. The beam switches allow control of the direction of light emitted from an on-board laser 106 which enters the array of light guides. By switching between a respective beam dump and a respective output aperture, the beam switch is used to modulate the output from the aperture. The light emitted can be imaged onto a target surface by a lens system or a single holographic element. In an alternative embodiment, instead of dumping the light to a beam dump, it can also be directed away from the target surface. An optoelectronic chip for modulating multiple outputs can be formed without an embedded laser. Instead, a separate laser may be connected to a chip having light guides, optoelectronic switches, and beam dumps, only.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- LEIDOS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Drobot, Adam Thomas | Annandale, VA | 16 | 524 |
Green, Albert Myron | Alexandria, VA | 22 | 903 |
White, Robert Courtney | Fairfax, VA | 7 | 197 |
Wyeth, Newell Convers | Oakton, VA | 29 | 984 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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