EP0110201A2
Expired / Lapsed
EP
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Apparatus for providing radiation of controlled spectral composition
Assignee: Kozponti Elelmiszeripari Kutato Intezet
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Filing: 1983-11-07
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Granted: —
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Expires: 2003-11-07
Abstract
Abstract The invention relates to an apparatus for providing radiation of controlled spectral composition, comprising radiation sources (51, ... 5n) each emitting a quasi-monochromatic radiation, a control unit (9) operating the radiation sources (51, ... 5n) corresponding to a predetermined spectral composition, and a dispersing element (1) irradiated by the radiation sources (51, ... 5n) to produce the radiation of the predetermined spectral composition. In a preferred embodiment having no moving parts the radiation sources (51, ... 5n) or outlet ends (71, ... 7n) of fibre optic elements (61, ... 6n) attached to them, the dispersing element (1) e.g. a concave reflecting grating and an exit slit (2) for the radiation produced by the dispersing element (1) are in a fixed position with respect to each other, and the radiation sources (51, ... 5n) or the outlet ends (71, ... 7n) of said fibre optic elements (61, ... 6n) are located with respect to the dispersing element (1) so that they are imaged onto the exit slit (2) via the dispersing element (1). The apparatus may be used as a double monochromator or a radiation synthetizer.
Inventors
- 👤 Béla Dr. Dipl.-Phys. Nádai
- 👤 András Dipl.-Elek. Czabaffy
- 👤 Loránd Dr. Dipl.-Elek. Horváth
- 👤 Károly Dr. Dipl.-Elek. Kaffka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 20:08
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/0205; G01J3/0218; G01J3/06; G01J3/10; G01J3/12; G01J3/18; G01J3/20; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/255; G01N2201/00; G01N2201/06; G01N2201/062; G01N2201/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
65 words
An apparatus for providing radiation of controlled spectral composition, characterized by comprising radiation sources (51, 52, ... 5n) each emitting a quasi-monochromatic radiation, a control unit (9, 90) operating the radiation sources (51, 52, ... 5n) corresponding to a predetermined spectral composition, and a dispersing element (1) irradiated by the radiation sources (51, 52, ... 5n) to produce the radiation of the predetermined spectral composition.
Claim 2
Independent Claim
65 words
An apparatus for providing radiation of controlled spectral composition, characterized by comprising radiation sources (51, 52, ... 5n) each emitting a quasi-monochromatic radiation, a control unit (9, 90) operating the radiation sources (51, 52, ... 5n) corresponding to a predetermined spectral composition, and a dispersing element (1) irradiated by the radiation sources (51, 52, ... 5n) to produce the radiation of the predetermined spectral composition.
Claim 3
Dependent Claim
117 words
The apparatus according to claim 1, characterized in that the radiation sources (51, 52, ... 5n) or outlet ends (71, 72, ... 7n) of fibre optic elements (61, 62, ... 6n) attached to the radiation sources (51, 52, ... 5n), the dispersing element (1) and an exit slit (2) for the radiation produced by the dispersing element (1) are in a fixed position with respect to each other, and the radiation sources (51, 52, ... 5n) or the outlet ends (71, 72, ... 7n) of the fibre optic elements (61, 62, ... 6n) are located with respect to the dispersing element (1) so that they are imaged onto the exit slit (2) via the dispersing element (1).
Claim 4
Dependent Claim
116 words
The apparatus according to claim 1, characterized in that the radiation sources (51, ... 5n) or outlet ends (71, ... 7n) of fibre optic elements (61, ... 5n) attached to the radiation sources (51, ... 5n) are in a fixed position with respect to each other, the dispersing element (1) and an exit slit (2) for the radiation produced by the dispersing element (1) are also in a fixed position with respect to each other, and the apparatus is provided with a mechanism for moving the radiation sources (51, ... 5n) or the outlet ends (71, ... 7n) of the fibre optic elements (61, ... 6n) and the dispersing element (1) with respect to each other.
Claim 5
Dependent Claim
83 words
The apparatus according to claim 1, characterized in that the radiation sources (51, ... 5n) or outlet ends (71, ... 7n) of fibre optic elements (61, ... 6n) attached to the radiation sources (51, ... 5n) are in a fixed position with respect to the dispersing element (1), and the apparatus is provided with a mechanism for moving the dispersing element (1) and an exit slig (2) for the radiation produced by the dispersing ele - ment (1) with respect to each other.
Claim 6
Dependent Claim
98 words
The apparatus according to claim 1, characterized in that the radiation sources (51, ... 5n) or outlet ends of fibre optic elements (61, ... 6n) attached to the radiation sources (51, ... 5n) and an exit slit (2) for the radiation produced by the dispersing element (1) are in a fixed position with respect to each other, and the apparatus is provided with a mechanism for moving the radiation sources (51, ... 5n) or the outlet ends (71, ... 7n) of the fibre optic elements (61, ... 6n) and said dispersing element (1) with respect to each other.
Claim 7
Independent Claim
64 words
The apparatus according to any of claims 3 to 5, characterized in that the radiation emitting surfaces of all radiation sources (51, ... 5n) or the outlet ends (71, ... 7n) of the fibre optic elements (61, ... 6n) attached to said surfaces are arranged along a line (13) or along an optical image of a line (13) to irradiate the dispersing element (1).
Claim 8
Independent Claim
36 words
The apparatus according to any of claims 3 to 6, characterized by comprising a control unit (90) to operate the radiation sources (51, ... 5n) one after the other and in synchronism with said moving mechanism.
Claim 9
Independent Claim
29 words
The apparatus according to any of claims 1 to 7, characterized in that the dispersing element (1) is a concave reflecting grating or a plan grating or a prism.
Claim 10
Dependent Claim
62 words
The apparatus according to claim 2, characterized in that the dispersing element (1) is a concave reflecting grating, and both the exit slit (2) and the radiation emitting surfaces of the radiation sources (51, ... 5n) or the outlet ends (71, ... 7n) of the fibre optic elements (61, ... 6n) are positioned along the Rowland-circle (R) of the concave reflecting grating.
Claim 11
Independent Claim
29 words
The apparatus according to any of claims 1 to 9, characterized in that each of the radiation sources (51, ... 5n) comprises at least one solid-state radiation emitting device.
Claim 12
Dependent Claim
31 words
The apparatus according to claim 10, characterized in that some of the radiation sources (51, ... 5n) comprise two or more simultaneously operated solid-state radiation emitting devices with overlapped wavelength ranges.
Claim 13
Dependent Claim
32 words
The apparatus according to claim 10, characterized in that some of the radiation sources (51, ... 5n) corresponding to successive wavelength values comprise solid-state radiation emitting devices of the same wavelength range.
Claim 14
Independent Claim
24 words
The apparatus according to any of claims 10 to 12, characterized in that the solid-state radiation emitting devices are light-emitting diodes or laser diodes.
Claim 15
Independent Claim
51 words
The apparatus according to any of claims 1 to 13, characterized in that fibre optic elements (61, ... 6n) are attached to the radiation emitting surfaces of the radiation sources (51, ... 5n), said fibre optic elements (61, ... 6n) having outlet ends (71, ... 7n) with a narrow rectangular form.
Claim 16
Independent Claim
61 words
The apparatus according to any of claims 1 to 14, characterized in that the control unit (9) comprises a counter (47) controlled by a clock generator (46), a decoder (48) connected to an output of the counter (47), and switching amplifiers (49), connected to outputs of the decoder (48), for driving the radiation sources (51, ... 5n) via intensity control devices.
Claim 17
Independent Claim
58 words
The apparatus according to any of claims 1 to 14, characterized in that the control unit (9) operating the radiation sources (51, ... 5n) is adapted to a programmable controlle of the operational sequence of the radiation sources (51, ... 5n) and/or the intensity and/or the duration of the radiation emitted by the radiation sources (51, ... 5n).
Claim 18
Dependent Claim
89 words
The apparatus according to claim 16, characterized in that the control unit (9) comprises a programmable data processing unit (53), a first and a second register (58, 59) connected to output lines (54,55,56,57) of the data processing unit (53), an analog switching device (63) having an analog input connected to said first register (58) via a digital-to-analog converter (60) and a control input connected to said second register (59), and amplifiers (64) connected to analog outputs of the switching device (63) for driving the radiation sources (51, ... 5n).
Claim 19
Dependent Claim
227 words
The apparatus according to claim 16, characterized in that the control unit (9) comprises a programmable data processing unit (65) and a plurality of signal generators (141, ... 14n), each of them operating one of the radiation sources (51, ... 5n) periodically and for a predetermined period, the time period control inputs of the signal generators (141, ... 14n) being connected to output lines (69) of the data processing unit (65), while the time period write inputs of the signal generators (141, ... 14n) being connected to output lines (91, ... 9n) of a decoder (67) controlled by the data processing unit (65). 19. The apparatus according to claim 18, characterized in that each signal generator (141, ... 14n) comprises a counter (121, ... 12n) driven by a common clock generator (66), a register (101, ... 10n) connected to said output lines (69) of the data processing unit (65), a digital comparator (111, ... 11n) connected to parallel data outputs of both said counter (121, ... 12n) and said register (101, ... 10n), and a flip-flop (131, ... 13n) connected to an overflow output of said counter (121, ... 12n) on the one hand, and to an output of said digital comparator (111, ... 11n) on the other hand, an output of said flip-flop (131, ... 13n) representing the output of said signal generator (141, ... 14n).
References Cited (Backward Citations)
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