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US4462689A
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Wide band scanning monochromator
Assignee: Baker Manufacturing Co LLC
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Filing: 1982-07-09
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Granted: 1984-07-31
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Expires: 2002-07-09
Abstract
Abstract A scanning monochromator is disclosed which is capable of operation over a wide bandwidth in an ultra-high vacuum. The monochromator includes a pair of carousel assemblies carrying the optical elements which may be independently positioned translationally along the optical axis of the instrument and also rotationally, which each positioning control operable from outside of the instrument. A carousel on each of the carousel assemblies carries several optical elements and is rotatable to change which optical element is used, also from outside of the instrument.
Inventors
- 👤 Milton N. Kabler
- 👤 Richard T. Williams
- 👤 Jack C. Rife
- 👤 William R. Hunter
- 👤 Johnny P. Kirkland
- 👤 Neil C. Lien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:42
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/06; G01; G01J; G01J3/00; G01J3/12; G01J3/18
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A scanning monochromator capable of operating in an ultra-high vacuum under external control, the monochromator comprising: a pair of optical element carousel assemblies (100, 102) each carrying a plurality of optical elements (106) only one of which is in the optical path of the monochromator at any time; a translational positioning mechanism for selectively positioning each of the carousel assemblies (100, 102); a rotational position mechanism for selectively rotating each of the carousel assemblies (100, 102) to change the orientation of the optical element (106) in the optical path; and a carousel rotating mechanism for rotating each of the carousel assemblies (100, 102) to change the one of the optical elements (106) of each carousel assembly (100, 102) which is in the optical path of the monochromator.
Claim 2
Dependent Claim
127 words
A scanning monochromator capable of operating in an ultra-high vacuum under external control, the monochromator comprising: a pair of optical element carousel assemblies (100, 102) each carrying a plurality of optical elements (106) only one of which is in the optical path of the monochromator at any time; a translational positioning mechanism for selectively positioning each of the carousel assemblies (100, 102); a rotational position mechanism for selectively rotating each of the carousel assemblies (100, 102) to change the orientation of the optical element (106) in the optical path; and a carousel rotating mechanism for rotating each of the carousel assemblies (100, 102) to change the one of the optical elements (106) of each carousel assembly (100, 102) which is in the optical path of the monochromator.
Claim 3
Dependent Claim
49 words
A monochromator as claimed in claim 1 wherein each of the translational positioning mechanisms includes a respective elongated support rod (42, 44) upon which each respective carousel assembly (100, 102) is carried, translational movement of the support rod (42, 44) carrying the respective carousel assembly (100, 102) with it.
Claim 4
Dependent Claim
71 words
A monochromator as claimed in claim 2 wherein each of the translational positioning mechanisms further includes a respective stepping motor (26, 28), a threaded drive shaft (38, 40) rotated by the stepping motor, and a follower (64, 66) secured to the respective support rod (42, 44) and threaded on the shaft to convert rotational movement of the respective drive shaft (38, 40) to linear movement of the support rod (42, 44).
Claim 5
Dependent Claim
55 words
A monochromator as claimed in claim 1 wherein each of the rotational position mechanisms includes a circular drive wheel (128) attached to each carousel assembly (100, 102) so that rotation of the drive wheel (128) rotates the respective carousel assembly (100, 102) to change the orientation of the optical element (106) in the optical path.
Claim 6
Dependent Claim
48 words
A monochromator as claimed in claim 4 wherein each of the rotational position mechanisms further includes a drive rod (156) mounted for linear movement and linked to the drive wheel (128) so that linear movement of the drive rod (156) causes rotational movement of the drive wheel (128).
Claim 7
Dependent Claim
27 words
A monochromator as claimed in claim 5 wherein the drive rod (156) is linked to the drive wheel (128) by a pair of drive tapes (146, 148).
Claim 8
Dependent Claim
35 words
A monochromator as claimed in claim 5 wherein each of the rotational positioning mechanisms further includes a stepping motor (170) the rotational movement of which is converted into linear movement of the drive rod (156).
Claim 9
Dependent Claim
37 words
A monochromator as claimed in claim 1 wherein each of the carousel assemblies (100, 102) includes a central shaft (103) and a carousel (104) carrying the optical elements (106) which is rotatably mounted on the shaft (103).
Claim 10
Dependent Claim
26 words
A monochromator as claimed in claim 8 wherein the carousel rotating mechanism is connected to be capable of rotating the carousel (104) about the shaft (103).
Claim 11
Dependent Claim
35 words
A monochromator as claimed in claim 9 where registering means are provided for each of the rotational positions of the carousel (104) to hold the carousel (104) to fix the optical elements (106) in position.
Claim 12
Dependent Claim
22 words
A monochromator as claimed in claim 8 wherein there are six of the optical elements (106) on each of the carousels (104).
Claim 13
Dependent Claim
36 words
A monochromator as claimed in claim 8 wherein the shaft (103) is connected to one end of an arm (113) connected at its other end to a second shaft (120) connected to the, rotational positioning mechanisms.
Claim 14
Dependent Claim
59 words
A monochromator as claimed in claim 1 wherein the carousel assemblies (100, 102) are housed in a vacuum housing (12) and wherein a pair of opposed bellows (52, 162) are provided for each of the linear positioning mechanisms and the rotational position mechanisms as they pass through the housing (12) so as to counterbalance any changes in atmospheric pressure.
Claim 15
Dependent Claim
24 words
A monochromator as claimed in claim 1 wherein the optical elements (106) may be selected from the group of diffraction gratings, crystals, or both.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |