US4958143A
Expired / Lapsed
US
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Synchronized pulse-enhanced dual light source
Assignee: Individual
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Filing: 1989-03-01
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Granted: 1990-09-18
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Expires: 2009-03-01
Abstract
Abstract An intermittent low intensity light source that is switched on by a drive signal is enhanced by a high intensity light source. The high intensity light source is coupled with the low intensity light source so that at least some light from both sources is projected in a desired direction. The high intensity light source has a brightness or intensity that significantly exceeds that of the low intensity light source. A pulse power source is connected to the high intensity light source and made responsive to the drive signal for pulsing the high intensity light source to emit a brief light pulse before the low intensity light source achieves any substantial precentage of its peak intensity, the light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources blend together visually.
Inventors
- 👤 Robert J. Knauff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/46; B60Q1/2611; B63; B63B; B63B45/00; B63B45/04; B63B2045/005
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
145 words
Apparatus for enhancing an intermittent low intensity light source that is powered by a drive signal comprising: a. a high intensity light source optically coupled with said low intensity light source so that at least some light from both sources is projected in a desired direction, said high intensity light having an instantaneous intensity that significantly exceeds the peak intensity of the low intensity light source; and b. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to produce a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 2
Dependent Claim
145 words
Apparatus for enhancing an intermittent low intensity light source that is powered by a drive signal comprising: a. a high intensity light source optically coupled with said low intensity light source so that at least some light from both sources is projected in a desired direction, said high intensity light having an instantaneous intensity that significantly exceeds the peak intensity of the low intensity light source; and b. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to produce a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 3
Dependent Claim
78 words
The apparatus as recited in claim 1 wherein the pulse means comprises: sensing means for sensing the presence of the drive signal; storage means for maintaining and delivering an electric charge sufficient to drive said high intensity light source for a pulse period; and trigger means operably connected to said sensing means and said storage means for initiating delivery of said electric charge to said high intensity light source upon sensing the initial presence of the drive signal.
Claim 4
Dependent Claim
142 words
A pulse-enhanced intermittent dual light source that is switched on by a drive signal comprising: a. a first, low intensity light source operably coupled to said drive signal; b. a second, high intensity light source optically coupled with said low intensity light source to project light in substantially the same direction as at least some light projected from said low intensity light source; and c. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to produce a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 5
Dependent Claim
142 words
A pulse-enhanced intermittent dual light source that is switched on by a drive signal comprising: a. a first, low intensity light source operably coupled to said drive signal; b. a second, high intensity light source optically coupled with said low intensity light source to project light in substantially the same direction as at least some light projected from said low intensity light source; and c. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to produce a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 6
Dependent Claim
23 words
The light source as recited in claim 3 wherein the first and second light sources are optically coupled by a common reflector element.
Claim 7
Dependent Claim
20 words
The light source as recited in claim 3 wherein the first and second light sources are in a common envelope.
Claim 8
Dependent Claim
32 words
The light source as recited in claim 3 wherein the low intensity light source is an incandescent light source and the high intensity light source is a gaseous arc chamber light source
Claim 9
Dependent Claim
20 words
The light source as recited in claim 6 wherein said gaseous arc chamber light source is an ionized gas flashtube.
Claim 10
Dependent Claim
20 words
The light source as recited in claim 3 wherein the drive signal is a signal derived from vehicle signalling lights.
Claim 11
Dependent Claim
17 words
The light source as recited in claim 8 wherein the vehicle signalling lights are vehicle brake lights.
Claim 12
Dependent Claim
132 words
An enhanced dual light source comprising: a first, low intensity light source; a second, high intensity light source optically coupled with said low intensity light source so that at least some light from both sources is projected in a desired direction; and drive means operably coupled to said first and second light sources for stimulating the emission of a pulse of light from said second light source during a period when the first light source is also being stimulated to emit light but before said first light source reaches any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 13
Dependent Claim
132 words
An enhanced dual light source comprising: a first, low intensity light source; a second, high intensity light source optically coupled with said low intensity light source so that at least some light from both sources is projected in a desired direction; and drive means operably coupled to said first and second light sources for stimulating the emission of a pulse of light from said second light source during a period when the first light source is also being stimulated to emit light but before said first light source reaches any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 14
Dependent Claim
46 words
The enhanced light source of claim 10 wherein the drive means is operably coupled to said first and second light sources to stimulate the emission of said light pulse from said second light source in response to the same signal that powers the first light source.
Claim 15
Independent Claim
131 words
A method of producing a pulse-enhanced light signal comprising: a. stimulating light from a first, low intensity light source; b. stimulating a pulse of light from a second, high intensity light source, where such pulse-stimulation causes a light pulse with a duration in the microsecond range, said light pulse being emitted before the first, low intensity light source achieves any substantial percentage of its peak value and occurring in such close proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually; and c. optically coupling said light from said first and second, low and high intensity light sources such that at least some light from both sources is projected in a desired direction.
Claim 16
Independent Claim
131 words
A method of producing a pulse-enhanced light signal comprising: a. stimulating light from a first, low intensity light source; b. stimulating a pulse of light from a second, high intensity light source, where such pulse-stimulation causes a light pulse with a duration in the microsecond range, said light pulse being emitted before the first, low intensity light source achieves any substantial percentage of its peak value and occurring in such close proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually; and c. optically coupling said light from said first and second, low and high intensity light sources such that at least some light from both sources is projected in a desired direction.
Claim 17
Dependent Claim
144 words
A pulse-enhanced intermittent dual light source that is switched on by a drive signal comprising: a. a first, low intensity light source operably coupled to said drive signal; b. a second, high intensity light source optically coupled with said low intensity light source to project light in substantially the same direction as at least some light projected from said low intensity light source; and c. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to initiate and complete a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 18
Dependent Claim
144 words
A pulse-enhanced intermittent dual light source that is switched on by a drive signal comprising: a. a first, low intensity light source operably coupled to said drive signal; b. a second, high intensity light source optically coupled with said low intensity light source to project light in substantially the same direction as at least some light projected from said low intensity light source; and c. pulse means connected to said high intensity light source and responsive to said drive signal for pulsing said high intensity light source to initiate and complete a light pulse before the low intensity light source achieves any substantial percentage of its peak intensity, said light pulse occurring in such close time proximity to the peak intensity of the low intensity light source that persistence of vision in the human eye causes the two light sources to blend together visually.
Claim 19
Dependent Claim
23 words
The light source as recited in claim 13 wherein the first and second light sources are optically coupled by a common reflector element.
Claim 20
Dependent Claim
20 words
The light source as recited in claim 13 wherein the first and second light sources are in a common envelope.
Claim 21
Dependent Claim
32 words
The light source as recited in claim 13 wherein the low intensity light source is an incandescent light source and the high intensity light source is a gaseous arc chamber light source.
Claim 22
Dependent Claim
20 words
The light source as recited in claim 16 wherein the gaseous arc chamber light source is an ionized gas flashtube.
Claim 23
Dependent Claim
20 words
The light source as recited in claim 13 wherein the drive signal is a signal derived from vehicle signalling lights.
Claim 24
Dependent Claim
17 words
The light source as recited in claim 18 wherein the vehicle signalling lights are vehicle brake lights.
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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) | 1993-09-17 | 1994-03-19 | 1994-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-17 | 1998-03-19 | 1998-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-17 | 2002-03-19 | 2002-09-18 | $7700.00 | Window Closed / Lapsed |