US5315685A
Expired / Lapsed
US
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Component for the transmission of high-energy light, and the application of the component
Assignee: Heraeus Quarzglas GmbH and Co KG
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Filing: 1992-06-15
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Granted: 1994-05-24
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Expires: 2012-06-15
Abstract
Abstract A component for the transmission of light of high energy density with a wavelength between 250 nm and 400 nm is made of synthetic, high-purity fused vitreous silica having a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen for the achievement of a minimal transmission variation in the transmission of the light.
Inventors
- 👤 Heinz Fabian
- 👤 Stephan Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:18
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; C; C03; C03C; C03C3/00; C03C3/04; C03C3/06; C03C4/00; C03C4/0085; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/24; G02B6/42; G02B6/4296; C03B; C03B2201/00; C03B2201/06; C03B2201/07; C03B2201/08; C03B2201/12; C03B2201/20; C03B2201/23; C03B2207/00; C03B2207/36; C03C2201/00; C03C2201/06; C03C2201/20; C03C2201/23
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
85 words
Component for the transmission of light of high energy density with a wavelength between 250 nm and 400 nm, made of synthetic, high-purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen.
Claim 2
Dependent Claim
85 words
Component for the transmission of light of high energy density with a wavelength between 250 nm and 400 nm, made of synthetic, high-purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen.
Claim 3
Dependent Claim
57 words
Component according to claim 1 wherein the fused vitreous silica has a hydroxyl ion content of less than 600 ppm, and the under-stoichiometric content of oxygen is such that the fused silica has an absorption band with a maximum in the wavelength range of 240 nm to 250 nm with an intensity of more than 0.1 dB/m.
Claim 4
Dependent Claim
20 words
Component according to claim 1 wherein the fused vitreous silica has a hydroxyl ion content of at least 200 ppm.
Claim 5
Dependent Claim
26 words
Component according to claim 1 wherein the fused vitreous silica has only a single absorption band in the wavelength range between 200 nm and 350 nm.
Claim 6
Dependent Claim
17 words
Component according to claim 1 wherein the light transmission section is in the form of a rod.
Claim 7
Dependent Claim
28 words
Component according to claim 5 wherein the light input section and/or the light output section is in the form of a cone tapering toward the light transmission section.
Claim 8
Dependent Claim
21 words
Component according to claim 1 wherein at least one of the light input surface and the light output surface is curved.
Claim 9
Dependent Claim
28 words
Component according to claim 1 wherein at least the light transmission section is enveloped by a jacket material which has an index of refraction of less than 1.4589.
Claim 10
Dependent Claim
22 words
Component according to claim 8 wherein the jacket material contains fused vitreous silica doped with at lest one of fluorine and boron.
Claim 11
Dependent Claim
16 words
Component according to claim 8 wherein the jacket material contains a plastic resistant to ultraviolet rays.
Claim 12
Dependent Claim
19 words
Component according to claim 1 wherein the light transmission section is in the form of a thick-walled hollow cylinder.
Claim 13
Dependent Claim
18 words
Component according to claim 1 wherein the light transmission section is in the form of a perforated disc.
Claim 14
Dependent Claim
17 words
Component according to claim 1 wherein the light transmission section is in the form of a fiber.
Claim 15
Dependent Claim
24 words
A plurality of components as claimed in claim 13 wherein said components have longitudinal axes running in parallel and are arranged in a bundle.
Claim 16
Dependent Claim
42 words
Component according to claim 1 wherein the under-stoichiometric content of oxygen is such that the fused silica has an absorption band with a maximum in the wavelength range of 240 nm to 250 nm with an intensity of more than 0.1 dB/m.
Claim 17
Dependent Claim
95 words
Method for transmitting light of high energy density with a wavelength between 300 nm and 320 nm comprising providing a component made of synthetic high purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen, and transmitting said light through said component.
Claim 18
Dependent Claim
95 words
Method for transmitting light of high energy density with a wavelength between 300 nm and 320 nm comprising providing a component made of synthetic high purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen, and transmitting said light through said component.
Claim 19
Dependent Claim
108 words
Method for expanding a beam of light in a plane perpendicular to the direction of propagation of said beam, comprising providing a component made of synthetic high purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section in the form of a thick walled hollow cylinder disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen, and directing said beam into said light input section.
Claim 20
Dependent Claim
108 words
Method for expanding a beam of light in a plane perpendicular to the direction of propagation of said beam, comprising providing a component made of synthetic high purity fused vitreous silica, with a light input section having a light entry surface, a light output section having a light exit surface, and a light transmission section in the form of a thick walled hollow cylinder disposed between the light input section and the light output section, wherein the fused silica has a hydroxyl ion content in the range between 50 ppm and 1200 ppm and an under-stoichiometric content of oxygen, and directing said beam into said light input section.
Claim 21
Dependent Claim
42 words
Method according to claim 16 wherein the under-stoichiometric content of oxygen is such that the fused silica has an absorption band with a maximum in the wavelength range of 240 nm to 250 nm with an intensity of more than 0.1 dB/m.
Claim 22
Dependent Claim
42 words
Method according to claim 17 wherein the under-stoichiometric content of oxygen is such that the fused silica has an absorption band with a maximum in the wavelength range of 240 nm to 250 nm with an intensity of more than 0.1 dB/m.
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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) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |