Patent US5677972A successfully refreshed from Google Patents.
US5677972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency direct coupling of radiant electromagnetic energy into dielectric wave guide structure
Assignee: TIT TECHNOLOGIES Inc
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Filing: 1996-02-21
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Granted: 1997-10-14
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Expires: 2016-02-21
Abstract
Abstract Radiant electromagnetic energy transmitting apparatus, comprising an elongated rod consisting of electromagnetic energy transmitting material, and a source of the energy having an end portion received into the rod to transmit the energy in different directions therein for effecting energy travel lengthwise of the rod.
Inventors
- 👤 John M. Popovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:41
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4202; G02B6/26; G02B6/28; G02B6/2804; G02B6/2817; G02B6/4249
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
80 words
Radiant electromagnetic energy transmitting apparatus, comprising a) an elongated rod consisting of electromagnetic energy transmitting material, b) and a source of said energy having an end portion received into said rod to transmit said energy in different directions therein for effecting energy travel lengthwise of the rod, c) said energy source comprising multiple LEDs embedded into a portion of the rod and spaced at substantially equal angular intervals about the center of the rod, said LEDs offset from said center.
Claim 2
Dependent Claim
80 words
Radiant electromagnetic energy transmitting apparatus, comprising a) an elongated rod consisting of electromagnetic energy transmitting material, b) and a source of said energy having an end portion received into said rod to transmit said energy in different directions therein for effecting energy travel lengthwise of the rod, c) said energy source comprising multiple LEDs embedded into a portion of the rod and spaced at substantially equal angular intervals about the center of the rod, said LEDs offset from said center.
Claim 3
Dependent Claim
15 words
The combination of claim 1 wherein said rod material consists of light transmitting synthetic resin.
Claim 4
Dependent Claim
19 words
The combination of claim 1 wherein said rod defines multiple recesses, and said LEDS are received into said recesses.
Claim 5
Dependent Claim
14 words
The combination of claim 3 wherein said recesses are spaced apart along the rod.
Claim 6
Dependent Claim
21 words
The combination of claim 4 wherein the rod has opposite side wall extents which are relatively convergent at said recess locations.
Claim 7
Dependent Claim
15 words
The combination of claim 5 wherein the rod is narrowed at and proximate said locations.
Claim 8
Dependent Claim
29 words
The combination of claim 4 wherein said rod has length "l", and said recesses are located at or proximate to 1/4 "l" and 3/4 "l", along the rod length.
Claim 9
Dependent Claim
21 words
The combination of claim 7 wherein the rod has opposite side wall extents which are relatively convergent at said recess locations.
Claim 10
Dependent Claim
11 words
The combination of claim 1 wherein said LEDS have cube shape.
Claim 11
Dependent Claim
16 words
The combination of claim 1 wherein said light source comprise multiple LEDs embedded into the rod.
Claim 12
Dependent Claim
16 words
The combination of claim 1 including an electromagnetic energy reflection means facing said rod, sidewise thereof.
Claim 13
Dependent Claim
23 words
The combination of claim 11 wherein said reflector means is a light reflector means characterized as providing substantial uniformity of collimated light reflection.
References Cited (Backward Citations)
US1421506A
Cited
GB1325087A
Cited
GB1325086A
Cited
US3941993A
Cited
US3915148A
Cited
US4002031A
Cited
US3970070A
Cited
US4022186A
Cited
US4074704A
Cited
US4108540A
Cited
GB1546792A
Cited
GB1546791A
Cited
GB1546793A
Cited
US4103673A
Cited
US4116223A
Cited
GB1561129A
Cited
GB1557472A
Cited
US4136670A
Cited
US4194949A
Cited
US4124017A
Cited
US4171695A
Cited
JPS5584907A
Cited
US4337759A
Cited
US4268116A
Cited
US4755921A
Cited
JPH01312201A
Cited
US5037172A
Cited
GB2239940A
Cited
GB2239939A
Cited
US5150966A
Cited
US5404869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-10-13 | 2001-04-14 | 2001-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-13 | 2005-04-14 | 2005-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-13 | 2009-04-14 | 2009-10-14 | $7700.00 | Window Closed / Lapsed |