FR2449275A1 - Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses - Google Patents

Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses

Info

Publication number
FR2449275A1
FR2449275A1 FR7904465A FR7904465A FR2449275A1 FR 2449275 A1 FR2449275 A1 FR 2449275A1 FR 7904465 A FR7904465 A FR 7904465A FR 7904465 A FR7904465 A FR 7904465A FR 2449275 A1 FR2449275 A1 FR 2449275A1
Authority
FR
France
Prior art keywords
focussing
raman radiation
triple
monochromators
detector
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.)
Granted
Application number
FR7904465A
Other languages
French (fr)
Other versions
FR2449275B3 (en
Inventor
Edouard Da Silva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dilor
Original Assignee
Dilor
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 Dilor filed Critical Dilor
Priority to FR7904465A priority Critical patent/FR2449275A1/en
Publication of FR2449275A1 publication Critical patent/FR2449275A1/en
Application granted granted Critical
Publication of FR2449275B3 publication Critical patent/FR2449275B3/fr
Granted legal-status Critical Current

Links

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
    • G01J3/28—Investigating the spectrum
    • G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry

Abstract

A triple monochromator is illuminated by the energy diffused by a sample to permit optical analysis of the sample. The Raman radiation is feeble and measurements are improved by being able to vary the focal point of the illuminating laser and by use of a double optical collector. The beam (1) from a laser (9) passes through an adjustable focussing system (10) to illuminate a sample (3). The Raman radiation is collected by an optical system (4) in which a focussing lens (11) is adjustable. A fixed lens (12) produces an image in a slit (5) whose width (6) is controlled by a motor (14). A logic regulator (L) provides the motor control and also controls the focussing lend assemblies to obtain the optimum image (a) in the optical slit (5).
FR7904465A 1979-02-13 1979-02-13 Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses Granted FR2449275A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904465A FR2449275A1 (en) 1979-02-13 1979-02-13 Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904465A FR2449275A1 (en) 1979-02-13 1979-02-13 Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses

Publications (2)

Publication Number Publication Date
FR2449275A1 true FR2449275A1 (en) 1980-09-12
FR2449275B3 FR2449275B3 (en) 1981-11-06

Family

ID=9222279

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904465A Granted FR2449275A1 (en) 1979-02-13 1979-02-13 Detector for raman radiation in triple monochromators - permits adjustable focussing for illuminating laser beam and for collecting lenses

Country Status (1)

Country Link
FR (1) FR2449275A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502752A1 (en) * 1991-03-04 1992-09-09 Dilor Spectroscopic apparatus
US5822061A (en) * 1992-01-20 1998-10-13 Dilor Spectrometry apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0502752A1 (en) * 1991-03-04 1992-09-09 Dilor Spectroscopic apparatus
FR2673718A1 (en) * 1991-03-04 1992-09-11 Dilor RAMAN SPECTROMETRY APPARATUS.
US5822061A (en) * 1992-01-20 1998-10-13 Dilor Spectrometry apparatus

Also Published As

Publication number Publication date
FR2449275B3 (en) 1981-11-06

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Legal Events

Date Code Title Description
ST Notification of lapse