GB631748A - Improvements in and relating to concave grating spectrographs - Google Patents

Improvements in and relating to concave grating spectrographs

Info

Publication number
GB631748A
GB631748A GB283447A GB283447A GB631748A GB 631748 A GB631748 A GB 631748A GB 283447 A GB283447 A GB 283447A GB 283447 A GB283447 A GB 283447A GB 631748 A GB631748 A GB 631748A
Authority
GB
United Kingdom
Prior art keywords
slit
grating
mirror
plane
rowland circle
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.)
Expired
Application number
GB283447A
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.)
ALEXANDER CHARLES GEORGE MENZI
HILGER Ltd ADAM
Original Assignee
ALEXANDER CHARLES GEORGE MENZI
HILGER Ltd ADAM
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 ALEXANDER CHARLES GEORGE MENZI, HILGER Ltd ADAM filed Critical ALEXANDER CHARLES GEORGE MENZI
Priority to GB283447A priority Critical patent/GB631748A/en
Publication of GB631748A publication Critical patent/GB631748A/en
Expired 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
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J3/20—Rowland circle spectrometers

Landscapes

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

Abstract

631,748. Spectrographs. HILGER, Ltd., A., MENZIES, A. C. G., and DOWELL, J. H. Jan. 29, 1947, No. 2834. [Class 97 (i)] A concave grating spectrograph comprises a slit, a grating, a photographic plate or film and a plane, cylindrical, figured plane or figured cylindrical mirror for forming an image of both the slit and the grating, and is so arranged that the slit, the grating, and the photographic plate or film and the images of the slit and the grating lie on a Rowland circle, while the plane of the reflecting surface of the plane mirror or, in the case of a cylindrical mirror, the generator thereof which lies in the plane of the Rowland circle, or an extension of said reflecting surface or generator, is maintained at right-angles to the line joining the slit and the image of the slit and passes through the centre of the Rowland circle. In an embodiment whereby different sections of the spectrum are brought into the width of a photographic plate P, a carrier for the grating G and the plate P is rotated about the axis of the slit S and a plane mirror M is moved to and from the slit with its reflecting surface normal to the line joining the slit S and the image S<SP>1</SP> formed by the mirror. For this purpose the mirror mount is connected by a link R to a pin Q on the plate and grating carrier, this pin being at a distance from the slit S equal to one quarter of the diameter D of the Rowland circle, on the circumference of which the grating, slit and plate are positioned. The length of the link R is also equal to D/4. Another form is described in which the slit, grating and photographic plate occupy fixed relative positions on the circumference of a Rowland circle and the mirror M is mounted on a carriage which is slidable on a bar, pivoted at the slit, and to which is pivoted a link, the other end of which is hinged to a fixed point midway between the slit and the centre of the Rowland circle.
GB283447A 1947-01-29 1947-01-29 Improvements in and relating to concave grating spectrographs Expired GB631748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB283447A GB631748A (en) 1947-01-29 1947-01-29 Improvements in and relating to concave grating spectrographs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB283447A GB631748A (en) 1947-01-29 1947-01-29 Improvements in and relating to concave grating spectrographs

Publications (1)

Publication Number Publication Date
GB631748A true GB631748A (en) 1949-11-09

Family

ID=9746817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB283447A Expired GB631748A (en) 1947-01-29 1947-01-29 Improvements in and relating to concave grating spectrographs

Country Status (1)

Country Link
GB (1) GB631748A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088249B (en) * 1954-07-01 1960-09-01 Parsons C A & Co Ltd spectrometer
EP0282043A2 (en) * 1987-03-10 1988-09-14 The Perkin-Elmer Corporation Polychromator for multi-element analysis
WO2005095910A1 (en) * 2004-04-01 2005-10-13 Alexandr Markovich Livshits Spectrometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088249B (en) * 1954-07-01 1960-09-01 Parsons C A & Co Ltd spectrometer
EP0282043A2 (en) * 1987-03-10 1988-09-14 The Perkin-Elmer Corporation Polychromator for multi-element analysis
EP0282043A3 (en) * 1987-03-10 1989-05-03 The Perkin-Elmer Corporation Polychromator for multi-element analysis
WO2005095910A1 (en) * 2004-04-01 2005-10-13 Alexandr Markovich Livshits Spectrometer

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