US5796209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas discharge lamps and lasers fabricated by michromachining
Assignee: Philips North America LLC
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Filing: 1994-10-27
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Granted: 1998-08-18
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Expires: 2014-10-27
Abstract
Abstract A high pressure gas discharge lamp and the method of making same utilizing integrated circuit fabrication techniques. The lamp is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide a cavity forming the gas discharge tube. Electrodes are deposited in the cavity. The cavity is filled with gas discharge materials such as mercury vapor, sodium vapor or metal halide. The substrates are bonded together and channels may be etched in the substrate so as to provide a means for connection to the electrodes. Electrodeless RF activated lamps may also be fabricated by this technique. Micro-lasers may also be fabricated by this technique as well.
Inventors
- 👤 Babar Ali Khan
- 👤 David Alan Cammack
- 👤 Ronald D. Pinker
- 👤 Nikhil Ramesh Taskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:22
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/1336; G02F1/133617; H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; H01J61/00; H01J61/02; H01J61/30; H01J61/82; H01J65/00; H01J9/00; H01J9/24; H01J9/26; H01J9/261; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/09; H01S3/097; H01S3/0971; H01S3/0973
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
102 words
A gas discharge light emitting device comprising: a) first and second substrates of continuous material capable of withstanding heat and pressure; b) at least one of said substrates light transmissive; c) said substrates having confronting planar surfaces in contact with each other; d) at least one of the substrates having at least one cavity disposed therein, the cavity having an opening at the planar surface of the substrate; e) a bonded interface disposed substantially across said substrates at their confronting surfaces, except at said cavity; f) luminescent gas discharge material disposed in said cavity; and g) means for energizing said luminescent material.
Claim 2
Dependent Claim
102 words
A gas discharge light emitting device comprising: a) first and second substrates of continuous material capable of withstanding heat and pressure; b) at least one of said substrates light transmissive; c) said substrates having confronting planar surfaces in contact with each other; d) at least one of the substrates having at least one cavity disposed therein, the cavity having an opening at the planar surface of the substrate; e) a bonded interface disposed substantially across said substrates at their confronting surfaces, except at said cavity; f) luminescent gas discharge material disposed in said cavity; and g) means for energizing said luminescent material.
Claim 3
Dependent Claim
25 words
The gas discharge lamp as claimed in claim 1, further including a phosphor layer disposed on the surface of at least one of said substrates.
Claim 4
Dependent Claim
25 words
The gas discharge lamp as claimed in claim 1 further including first and second at least partially reflective mirrors so as to form a laser.
Claim 5
Dependent Claim
16 words
The gas discharge lamp as claimed in claim 1 wherein the bonded interface is heat bonded.
Claim 6
Dependent Claim
16 words
The gas discharge lamp as claimed in claim 1 wherein the bonded interface is anodically bonded.
Claim 7
Dependent Claim
26 words
The gas discharge lamp of claim 1 in which the means for energizing said luminescent material comprises first and second electrode means disposed in said cavity.
Claim 8
Dependent Claim
29 words
The lamp as claimed in claim 6, further including electrically conductive means extending through at least one of said substrates for electrical connection with said at least one electrode.
Claim 9
Dependent Claim
27 words
The gas discharge lamp as claimed in claim 7, further including channels disposed in at least one of said substrates through which said electrically conductive means extend.
Claim 10
Dependent Claim
152 words
A lamp comprising: a first continuous planar substrate having an upper and a lower surface; a second continuous planar substrate having an upper and a lower surface; at least one of said first and second planar substrates being light transmissive; said upper surface of said first substrate being in face to face contact with the lower surface of said second substrate; a cavity disposed in at least the first substrate, the cavity having an opening in the upper surface of the first substrate, or the second substrate, the cavity having an opening in the lower surface of the second substrate; a bonded interface disposed across said upper surface of said first substrate and said lower surface of said second substrate except at the cavity, the cavity sealed thereby; luminescent means disposed in said cavity; and first and second electrode means disposed in said cavity for actuating the luminescent means in said cavity.
Claim 11
Dependent Claim
152 words
A lamp comprising: a first continuous planar substrate having an upper and a lower surface; a second continuous planar substrate having an upper and a lower surface; at least one of said first and second planar substrates being light transmissive; said upper surface of said first substrate being in face to face contact with the lower surface of said second substrate; a cavity disposed in at least the first substrate, the cavity having an opening in the upper surface of the first substrate, or the second substrate, the cavity having an opening in the lower surface of the second substrate; a bonded interface disposed across said upper surface of said first substrate and said lower surface of said second substrate except at the cavity, the cavity sealed thereby; luminescent means disposed in said cavity; and first and second electrode means disposed in said cavity for actuating the luminescent means in said cavity.
Claim 12
Dependent Claim
34 words
The lamp as claimed in claim 9, further including at least one channel disposed in at least one of said first and second substrates, said electrodes being disposed in said at least one channel.
Claim 13
Dependent Claim
39 words
The lamp as claimed in claim 9, further including a channel disposed in at least one of said first and second substrates, said channel extending from the lower surface of said substrate to the upper surface of said substrate.
Claim 14
Dependent Claim
40 words
The lamp as claimed in claim 9, further including channels disposed in at least one of said first and second substrates at the interface therebetween and extending along the interface, said first and second electrodes being disposed in said channels.
Claim 15
Dependent Claim
27 words
The lamp as claimed in claim 12, further including planarizing means disposed atop said electrodes so as to provide a surface which is coplanar with said interface.
Claim 16
Dependent Claim
30 words
The lamp as claimed in claim 12, wherein a portion of at least one of said first and said second substrates is melted so as to seal said electrode therewithin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |