US7213923B2
Expired / Lapsed
US
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Emission of visible light in response to absorption of excitation light
Assignee: Sun Innovations Inc
•
Filing: 2005-04-14
•
Granted: 2007-05-08
•
Expires: 2025-04-14
Abstract
Abstract In accordance with embodiments, viewable images can be created in glass. Viewable images may be created in glass by using a projector which projects ultraviolet light to excite light emitting material. Clear images may be created in glass because the size the light emitting particles in the glass is less than 400 nanometers. In embodiments, the visible illumination of a transparent substrate to display an image is possible, while the transparent substrate remains transparent. Accordingly, for example, drivers of automobiles may view images (e.g. map images) on their windshield while they are driving. As another example, window shoppers may view enhanced advertisements in the windows of stores that they are approaching.
Inventors
- 👤 Jian-Qiang Liu
- 👤 Xiao-Dong Sun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:55
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/14
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
73 words
An apparatus comprising light emitting material integrated into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of excitation light; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 2
Independent Claim
73 words
An apparatus comprising light emitting material integrated into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of excitation light; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1 , wherein: the light emitting material comprises a plurality of different materials; and each of the plurality of different materials emits a different range of wavelengths of visible light.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2 , wherein: each of the plurality of different materials emits visible light in response to absorption of a different range of wavelengths of excitation light.
Claim 5
Dependent Claim
22 words
The apparatus of claim 2 , wherein the plurality of different materials are integrated into the substantially transparent substrate in different regions.
Claim 6
Dependent Claim
11 words
The apparatus of claim 4 , wherein the regions are pixels.
Claim 7
Dependent Claim
11 words
The apparatus of claim 4 , wherein the regions are stripes.
Claim 8
Dependent Claim
21 words
The apparatus of claim 2 , wherein the plurality of different materials are integrated into the substantially transparent substrate in layers.
Claim 9
Dependent Claim
22 words
The apparatus of claim 7 , wherein each layer of the layers comprises a different material of the plurality of different materials.
Claim 10
Dependent Claim
22 words
The apparatus of claim 2 , wherein the plurality of different materials are integrated into the substantially transparent substrate as a mixture.
Claim 11
Dependent Claim
27 words
The apparatus of claim 2 , wherein the plurality of different materials are integrated into the substantially transparent substrate by being coated onto the substantially transparent substrate.
Claim 12
Dependent Claim
27 words
The apparatus of claim 2 , wherein the plurality of different materials are integrated into the substantially transparent substrate by be dispersed into the substantially transparent substrate.
Claim 13
Dependent Claim
19 words
The apparatus of claim 2 , wherein the plurality of different materials which comprise Europium which emits red light.
Claim 14
Dependent Claim
19 words
The apparatus of claim 2 , wherein the plurality of different materials which comprise Terbium which emits green light.
Claim 15
Dependent Claim
26 words
The apparatus of claim 2 , wherein the plurality of different materials which comprise Cerium which emits at least one of blue light and yellow light.
Claim 16
Dependent Claim
19 words
The apparatus of claim 2 , wherein the plurality of different materials which comprise Erbium which emits green light.
Claim 17
Dependent Claim
23 words
The apparatus of claim 2 , wherein the plurality of different materials which comprises at least one organic fluorescent dye and organic pigment.
Claim 18
Dependent Claim
25 words
The apparatus of claim 16 , wherein said at least one organic dye and organic pigment is at least one organo-metalic dye and organo-metalic pigment.
Claim 19
Dependent Claim
42 words
The apparatus of claim 2 , wherein the plurality of different materials comprises: a first type of material configured to emit visible light having a first color; and a second type of material configured to emit visible light having a second color.
Claim 20
Dependent Claim
52 words
The apparatus of claim 18 , wherein: the first type of material emits visible light having a first color in response to a first wavelength range of excitation light; and the second type of material emits visible light having a second color in response to a second wavelength range of excitation light.
Claim 21
Dependent Claim
17 words
The apparatus of claim 19 , wherein first wavelength range and the second wavelength range partially overlap.
Claim 22
Dependent Claim
17 words
The apparatus of claim 19 , wherein the first wavelength range completely overlaps the second wavelength range.
Claim 23
Dependent Claim
17 words
The apparatus of claim 19 , wherein the first wavelength range substantially overlaps the second wavelength range.
Claim 24
Dependent Claim
30 words
The apparatus of claim 19 , wherein the first wavelength range of excitation light and the second wavelength range of excitation light are emitted from at least one light source.
Claim 25
Dependent Claim
18 words
The apparatus of claim 23 , wherein the at least one light source is at least one projector.
Claim 26
Dependent Claim
19 words
The apparatus of claim 24 , wherein the at least one projector is a digital micro mirror device projector.
Claim 27
Dependent Claim
18 words
The apparatus of claim 23 , wherein the at least one light source is at least one laser.
Claim 28
Dependent Claim
19 words
The apparatus of claim 23 , wherein the at least one light source is a single discharge light source.
Claim 29
Dependent Claim
22 words
The apparatus of claim 18 , wherein at least one of the first color and the second color is a primary color.
Claim 30
Dependent Claim
22 words
The apparatus of claim 18 , wherein at least one of the first color and the second color is a non-primary color.
Claim 31
Dependent Claim
43 words
The apparatus of claim 18 , wherein: the plurality of different materials comprises a third type of material configured to emit visible light having a third color; the first color is red; the second color is blue; and the third color is green.
Claim 32
Dependent Claim
27 words
The apparatus of claim 30 , wherein the plurality of different materials comprises a fourth type of material configured to emit visible light having a fourth color.
Claim 33
Dependent Claim
23 words
The apparatus of claim 1 , wherein each of the plurality of light emitting particles has a diameter less than about 400 nanometers.
Claim 34
Dependent Claim
23 words
The apparatus of claim 32 , wherein each of the plurality of light emitting particles has a diameter less than about 300 nanometers.
Claim 35
Dependent Claim
23 words
The apparatus of claim 33 , wherein each of the plurality of light emitting particles has a diameter less than about 200 nanometers.
Claim 36
Dependent Claim
23 words
The apparatus of claim 34 , wherein each of the plurality of light emitting particles has a diameter less than about 100 nanometers.
Claim 37
Dependent Claim
23 words
The apparatus of claim 35 , wherein each of the plurality of light emitting particles has a diameter less than about 50 nanometers.
Claim 38
Dependent Claim
19 words
The apparatus of claim 1 , wherein each of the plurality of light emitting particles is an individual molecule.
Claim 39
Dependent Claim
19 words
The apparatus of claim 1 , wherein each of the plurality of light emitting particles is an individual atom.
Claim 40
Independent Claim
73 words
A method comprising integrating light emitting material into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of excitation light; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 41
Independent Claim
73 words
A method comprising integrating light emitting material into a substantially transparent substrate, wherein: the light emitting material is configured to emit visible light in response to absorption of excitation light; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 42
Independent Claim
72 words
A method comprising emitting visible light from light emitting material in response to absorption of excitation light, wherein: the light emitting material is integrated into a substantially transparent substrate; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
Claim 43
Independent Claim
72 words
A method comprising emitting visible light from light emitting material in response to absorption of excitation light, wherein: the light emitting material is integrated into a substantially transparent substrate; the wavelength of the visible light varies according to the wavelength of the excitation light; the light emitting material comprises a plurality of light emitting particles; and each of the plurality of light emitting particles has a diameter less than about 500 nanometers.
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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) | 2010-05-07 | 2010-11-06 | 2011-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-05-07 | 2014-11-06 | 2015-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-05-07 | 2018-11-06 | 2019-05-08 | $7700.00 | Window Closed / Lapsed |