Patent US1878613A successfully refreshed from Google Patents.
Patent US4780899A successfully refreshed from Google Patents.
US4780899A
Expired / Lapsed
US
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Crystal for an X-ray analysis apparatus
Assignee: US Philips Corp
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Filing: 1986-04-15
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Granted: 1988-10-25
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Expires: 2006-04-15
Abstract
Abstract A crystal for an X-ray analysis apparatus is mounted on a carrier of an amorphous material whose bonding surface preferably obtains its desired geometry by grinding and polishing. Using a suitably transparent carrier, use can be made of a UV-curable type of adhesive which is irradiated through the carrier. The thickness of the layer of glue can be checked, if desired, via the same path. Because no disturbing background radiation is generated by an amorphous carrier, local irregularities are avoided, and better thermal adaptation of carrier and crystal material is feasible, such a crystal will contribute to a substantially higher resolution when used in an X-ray analysis apparatus.
Inventors
- 👤 Cornelis L. Adema
- 👤 Cornelis L. Alting
- 👤 Wilhelmus H. J. M. Gevers
- 👤 Albert Huizing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/06; G21K2201/00; G21K2201/06; G21K2201/062; G21K2201/067
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
60 words
An X-ray crystal device for use with X-rays comprising a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier by an X-ray resistant, UV-curable adhesive, wherein said carrier is one of glass, quartz glass, glass ceramic, and ceramic material.
Claim 2
Dependent Claim
60 words
An X-ray crystal device for use with X-rays comprising a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier by an X-ray resistant, UV-curable adhesive, wherein said carrier is one of glass, quartz glass, glass ceramic, and ceramic material.
Claim 3
Dependent Claim
36 words
An X-ray crystal device according to claim 1, wherein said carrier is of a material having a coefficient of expansion differing from a coefficient of expansion of said crystal by at most a factor of 2.
Claim 4
Dependent Claim
24 words
An X-ray crystal device according to claim 1 or 2, wherein said carrier is glass, and said crystal is one of Si or Ge.
Claim 5
Dependent Claim
20 words
An X-ray crystal device according to claim 3, wherein said crystal is bonded to said carrier by a polythene foil.
Claim 6
Dependent Claim
36 words
An X-ray crystal device according to claim 1 or 2, wherein said crystal has a surface bonded to said carrier to provide X-ray analysis, said surface deviating at most 0.025 μm from a predetermined geometric shape.
Claim 7
Dependent Claim
24 words
An X-ray crystal device according to claim 1 or 2, wherein said carrier is glass, and said crystal is one of Si or Ge.
Claim 8
Dependent Claim
20 words
An X-ray crystal device according to claim 6, wherein said crystal is bonded to said carrier by a polythene foil.
Claim 9
Dependent Claim
32 words
An X-ray crystal device according to claim 1 or 2, wherein said carrier has a surface bonded to said crystal, said surface having a surface roughness of less than approximately 0.005 μm.
Claim 10
Dependent Claim
54 words
An X-ray crystal device for use with X-rays comprising a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier, wherein said crystal is mounted on said carrier by an X-ray resistant, UV-curable adhesive.
Claim 11
Dependent Claim
54 words
An X-ray crystal device for use with X-rays comprising a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier, wherein said crystal is mounted on said carrier by an X-ray resistant, UV-curable adhesive.
Claim 12
Dependent Claim
34 words
An X-ray crystal device according to claim 9, wherein said crystal has a surface bonded to said carrier to provide X-ray analysis, said surface deviating at most 0.025 μm from a predetermined geometric shape.
Claim 13
Dependent Claim
49 words
An X-ray analysis apparatus comprising means for analyzing X-rays, said means including a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier by an X-ray resistant, UV-curable adhesive.
Claim 14
Dependent Claim
49 words
An X-ray analysis apparatus comprising means for analyzing X-rays, said means including a carrier of an amorphous material, said carrier being transparent to ultraviolet light, and said carrier having a shaped surface, and a crystal mounted on said shaped surface of said carrier by an X-ray resistant, UV-curable adhesive.
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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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |