JPS5760232A - Diffraction grating spectometer with cylindrical surface - Google Patents
Diffraction grating spectometer with cylindrical surfaceInfo
- Publication number
- JPS5760232A JPS5760232A JP13620480A JP13620480A JPS5760232A JP S5760232 A JPS5760232 A JP S5760232A JP 13620480 A JP13620480 A JP 13620480A JP 13620480 A JP13620480 A JP 13620480A JP S5760232 A JPS5760232 A JP S5760232A
- Authority
- JP
- Japan
- Prior art keywords
- grating
- cylindrical surface
- spectrometer
- astigmatism
- curvature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 201000009310 astigmatism Diseases 0.000 abstract 3
- 238000000149 argon plasma sintering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
Abstract
PURPOSE:To improve the astigmatism of a spectrometer comprising two spherical mirrors, one grating and a slit by arranging the light scattering surface of the grating so as to be a cylindrical surface of a very moderate curvature having a parallel bus. CONSTITUTION:An incoming light from a slit S is reflected on a collimator concave mirror M1 to be separated with a grating G and reflected with an image forming concave mirror M2 to obtain a spectrum on a surface P. In a spectrometer of such a type, the tight scattering surface of the grating is so arranged as to be a cylindrical surface of a very moderate curvature having a parallel bus. The grating G with the cylindrical surface is formed by a holographic method. As a result, a horizontal image is formed in infinity and an vertical image at a finite distance creating an astigmatism, which can be minimized by deriving an optimal value from a re- lationship between an angle alpha of incidence, an angle beta of reflection and a radius Rcy of curvature R of the cylindrical part as given by (cosalpha+cosbeta)/Rcy=0. Thus, a spectrometer with a corrected astigmatism can be produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13620480A JPS5760232A (en) | 1980-09-29 | 1980-09-29 | Diffraction grating spectometer with cylindrical surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13620480A JPS5760232A (en) | 1980-09-29 | 1980-09-29 | Diffraction grating spectometer with cylindrical surface |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5760232A true JPS5760232A (en) | 1982-04-12 |
Family
ID=15169758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13620480A Pending JPS5760232A (en) | 1980-09-29 | 1980-09-29 | Diffraction grating spectometer with cylindrical surface |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5760232A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6090114U (en) * | 1983-11-24 | 1985-06-20 | 中央紙器工業株式会社 | Closing mechanism for cardboard packaging boxes |
US5706108A (en) * | 1995-07-20 | 1998-01-06 | Nippondenso Co., Ltd. | Hologram display apparatus including a curved surface of constant curvature |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5749824A (en) * | 1980-09-10 | 1982-03-24 | Nippon Kogaku Kk <Nikon> | Spectroscope |
-
1980
- 1980-09-29 JP JP13620480A patent/JPS5760232A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5749824A (en) * | 1980-09-10 | 1982-03-24 | Nippon Kogaku Kk <Nikon> | Spectroscope |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6090114U (en) * | 1983-11-24 | 1985-06-20 | 中央紙器工業株式会社 | Closing mechanism for cardboard packaging boxes |
US5706108A (en) * | 1995-07-20 | 1998-01-06 | Nippondenso Co., Ltd. | Hologram display apparatus including a curved surface of constant curvature |
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