SU706711A1 - Monochromator - Google Patents

Monochromator

Info

Publication number
SU706711A1
SU706711A1 SU782642080A SU2642080A SU706711A1 SU 706711 A1 SU706711 A1 SU 706711A1 SU 782642080 A SU782642080 A SU 782642080A SU 2642080 A SU2642080 A SU 2642080A SU 706711 A1 SU706711 A1 SU 706711A1
Authority
SU
USSR - Soviet Union
Prior art keywords
prism
monochromator
accuracy
coordinating
grating
Prior art date
Application number
SU782642080A
Other languages
Russian (ru)
Inventor
Виктор Брунович Шлишевский
Original Assignee
Новосибирский институт инженеров геодезии, аэрофотосъемки и картографии
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Новосибирский институт инженеров геодезии, аэрофотосъемки и картографии filed Critical Новосибирский институт инженеров геодезии, аэрофотосъемки и картографии
Priority to SU782642080A priority Critical patent/SU706711A1/en
Application granted granted Critical
Publication of SU706711A1 publication Critical patent/SU706711A1/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12Generating the spectrum; Monochromators
    • G01J3/14Generating the spectrum; Monochromators using refracting elements, e.g. prisms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12Generating the spectrum; Monochromators
    • G01J3/18Generating the spectrum; Monochromators using diffraction elements, e.g. grating

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)

Description

(St) МОНОХРОМАТОР(St) MONOCHROMATOR

1one

Изобретение относитс  к области спектра№ ного приборосгроетш и может найти применение при проведении спектрометрических изме . рений новышенноп точности.The invention relates to the field of spectral instrumentation and can be used when conducting spectrometric measurements. rhenium novyshennop accuracy.

Известны монохроматоры, содсржа1цие вход11ую и выходную щели, объективы и дисперnipyiouoje элементы-призмы или дифракционные решетки 11;Monochromators, input and output slits, lenses and dispersion prism elements or diffraction gratings 11 are known;

Недостатком этих приборов  вл етс  резко вьфаженна  зависимость кривизны спектральных линий диспергирующих элементов от длины волны, что приводит к ухудшению разрешающей спрсобносш, снижению точности спектрометрических измерений и уменьшению светошлы монохроматоров.,The disadvantage of these devices is the sharply increased dependence of the curvature of the spectral lines of dispersing elements on the wavelength, which leads to a deterioration of the resolution of the distribution, a decrease in the accuracy of spectrometric measurements and a decrease in the light path of the monochromators.

Наиболее близким техническим решением  вл етс  монохроматор, содержащий входную и выходаую щели, объективы и диспергарующую систему, состо щую из призмы и дифракциовдой решетки 2..The closest technical solution is a monochromator containing an input and output slits, lenses and a dispersing system consisting of a prism and a diffraction grating 2.

Дл  согласовани  взаимного разворота призмы и решетки имеетс  кинематический механизм .There is a kinematic mechanism for coordinating the mutual reversal of the prism and the grating.

При сложении дисперсий призмы и решетки кривизна их спектральных линий имеет прОтивопЬлршше знаки и взаимно компенси-. руетс .When adding the dispersions of the prism and the grating, the curvature of their spectral lines has the signs and is mutually compensated. Ruets

Недостатком этого монохроматора  вл етс  низка  точность спектрометрических измерений, обусловленна  оишбками сложного кинематического механизма соглатовани  взаимного разворота при.змы и решетки.The disadvantage of this monochromator is the low accuracy of spectrometric measurements, due to the complexity of the complex kinematic mechanism for coordinating the mutual reversal of the prism and lattice.

Целью предлагаемого изобретени   вл етс  повышеш1е точности измерений.The aim of the invention is to improve measurement accuracy.

Цель достигаетс  тем, что диспергирующа  система вьшолнсна в виде призмы, на заднн о отражающую поверхность коТорс/t нанесены штрихи дифракционной решеткиThe goal is achieved by the fact that the dispersing system is executed in the form of a prism, and the grooves of the diffraction grating are applied to the back surface of the reflector surface.

Такое выполнение диспергирующей системы исключает механизм согласовани  взаимного разворота призмы и решетки. Поскольку штрихи дифракщюнной решетки нанесены непосредственно на заднюю отражающую поверхность призмы. В св зи с отсутствием механизма согласовани  устран ютс  и оншбки, св занные с ним, что повьппает точность измерений и т1рощаетс  сканирование спектра.This embodiment of the dispersing system eliminates the mechanism for coordinating the mutual reversal of the prism and the grid. Since the strokes of the diffraction grating are applied directly to the rear reflecting surface of the prism. Due to the lack of a matching mechanism, the onshbki associated with it are eliminated, which increases the measurement accuracy and simplifies scanning of the spectrum.

SU782642080A 1978-07-11 1978-07-11 Monochromator SU706711A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782642080A SU706711A1 (en) 1978-07-11 1978-07-11 Monochromator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782642080A SU706711A1 (en) 1978-07-11 1978-07-11 Monochromator

Publications (1)

Publication Number Publication Date
SU706711A1 true SU706711A1 (en) 1979-12-30

Family

ID=20775931

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782642080A SU706711A1 (en) 1978-07-11 1978-07-11 Monochromator

Country Status (1)

Country Link
SU (1) SU706711A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475792A (en) * 1982-07-27 1984-10-09 The United States Of America As Represented By The Secretary Of The Navy High resolution diffraction grating
US5161057A (en) * 1988-09-12 1992-11-03 Johnson Kenneth C Dispersion-compensated fresnel lens
EP0602992A1 (en) * 1992-12-18 1994-06-22 Hughes Aircraft Company Grating-prism combination

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475792A (en) * 1982-07-27 1984-10-09 The United States Of America As Represented By The Secretary Of The Navy High resolution diffraction grating
US5161057A (en) * 1988-09-12 1992-11-03 Johnson Kenneth C Dispersion-compensated fresnel lens
EP0602992A1 (en) * 1992-12-18 1994-06-22 Hughes Aircraft Company Grating-prism combination
US5652681A (en) * 1992-12-18 1997-07-29 Hughes Electronics Grism (grating-prism combination)

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