US4820046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectroscope apparatus and reaction apparatus using the same
Assignee: Hitachi Ltd
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Filing: 1987-11-12
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Granted: 1989-04-11
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Expires: 2007-11-12
Abstract
Abstract A spectroscope apparatus includes means for separating light from an object to be measured into spectral components, means for mixing that part of the spectral components which exists in a desired wavelength range, and means for forming an image of the to-be-measured body of mixed light. The image thus obtained is very useful for observing the state of a combustion flame, the progress of photochemical reaction, the progress of biochemical reaction, a desired tissue in a cell, and the state of a flame for analyzing a solution which contains a metal ion, by flame spectrophotometery, that is, provides accurate information and makes possible a precise control operation.
Inventors
- 👤 Kenichi Sohma
- 👤 Shigeru Azuhata
- 👤 Kiyoshi Narato
- 👤 Tooru Inada
- 👤 Hironobu Kobayashi
- 👤 Norio Arashi
- 👤 Hiroshi Miyadera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:51
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/2823; G01J3/443; G01N; G01N21/00; G01N21/75; G01J2003/2826; G01J2003/283; G01J3/12; G01J3/18; G01J3/1809; G01N21/62; G01N21/63; G01N21/64; G01N21/6402; G01N21/6404; G01N2021/6406; G01N21/71; G01N21/72; G01N2021/725; G01N21/76
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
315 words
An apparatus for controlling reaction which is accompanied by light emission, comprising: a reaction apparatus for generating a light emitting body; an optical guide for light from said light emitting body; a spectroscope apparatus for separating light from said optical guide into spectral components, said spectroscope apparatus including a first spectroscope, a second spectroscope coupled with said first spectroscope through an intermediate slit, and drive means, said first spectroscope being made up of a collimator system and a light dispersing optical system, said light dispersing optical system including a light dispersing grating and a first optical system for leading the dispersed light from said light dispersing grating to said intermediate slit, said collimator system converting light rays from said optical guide into parallel rays incident on said light dispersing grating, said second spectroscope being made up of a light mixing optical system and an image formation optical system for forming an image of mixed light from said light mixing optical system, said light mixing optical system including a light mixing grating and a second optical system for focusing light from said intermediate slit on said light mixing grating, said drive means driving said light dispersing optical system and said light mixing optical system so that said light dispersing optical system and said light mixing optical system are optically symmetrical with respect to said intermediate slit; a monitor for displaying an image, said image being formed of mixed light corresponding to that part of said spectral components which exists in one of different wavelength ranges; a memory for storing a plurality of reference images; and a controller for comparing a plurality of images corresponding to said wavelength ranges with the reference images read out of said memory, to control variable quantities concerning the state of said light emitting body so that at least one of said images agrees with a corresponding one of said reference images.
Claim 2
Independent Claim
315 words
An apparatus for controlling reaction which is accompanied by light emission, comprising: a reaction apparatus for generating a light emitting body; an optical guide for light from said light emitting body; a spectroscope apparatus for separating light from said optical guide into spectral components, said spectroscope apparatus including a first spectroscope, a second spectroscope coupled with said first spectroscope through an intermediate slit, and drive means, said first spectroscope being made up of a collimator system and a light dispersing optical system, said light dispersing optical system including a light dispersing grating and a first optical system for leading the dispersed light from said light dispersing grating to said intermediate slit, said collimator system converting light rays from said optical guide into parallel rays incident on said light dispersing grating, said second spectroscope being made up of a light mixing optical system and an image formation optical system for forming an image of mixed light from said light mixing optical system, said light mixing optical system including a light mixing grating and a second optical system for focusing light from said intermediate slit on said light mixing grating, said drive means driving said light dispersing optical system and said light mixing optical system so that said light dispersing optical system and said light mixing optical system are optically symmetrical with respect to said intermediate slit; a monitor for displaying an image, said image being formed of mixed light corresponding to that part of said spectral components which exists in one of different wavelength ranges; a memory for storing a plurality of reference images; and a controller for comparing a plurality of images corresponding to said wavelength ranges with the reference images read out of said memory, to control variable quantities concerning the state of said light emitting body so that at least one of said images agrees with a corresponding one of said reference images.
Claim 3
Dependent Claim
33 words
An apparatus for controlling reaction which is accompanied by light emission, as claimed in claim 1, wherein a light amplifying element is inserted into said image formation optical system of said spectroscope apparatus.
Claim 4
Dependent Claim
70 words
An apparatus for controlling reaction which is accompanied by light emission, as claimed in claim 1 or 2, wherein the width of said intermediate slit can be varied, and it is possible to vary the rotational angle of each of the light dispersing grating and the light mixing grating continuously so that the light dispersing grating and the light mixing grating are optically symmetrical with respect to said intermediate slit.
Claim 5
Dependent Claim
33 words
An apparatus for controlling reaction which is accompanied by light emission, as claimed in claim 3, wherein said optical guide is provided with a lens capable of transmitting ultraviolet rays and visible rays.
Claim 6
Dependent Claim
36 words
An apparatus for controlling reaction which is accompanied by light emission, as claimed in claim 4, further comprising an image processor for expressing the light intensity distribution at an image formed of mixed light, in colors.
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |