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GB201120579D0 - A spectrographic device - Google Patents

A spectrographic device

Info

Publication number
GB201120579D0
GB201120579D0 GBGB1120579.6A GB201120579A GB201120579D0 GB 201120579 D0 GB201120579 D0 GB 201120579D0 GB 201120579 A GB201120579 A GB 201120579A GB 201120579 D0 GB201120579 D0 GB 201120579D0
Authority
GB
United Kingdom
Prior art keywords
slit
light
focuser
focus aid
collimator
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.)
Withdrawn
Application number
GBGB1120579.6A
Other versions
GB2497095A (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1120579.6A priority Critical patent/GB2497095A/en
Publication of GB201120579D0 publication Critical patent/GB201120579D0/en
Publication of GB2497095A publication Critical patent/GB2497095A/en
Withdrawn legal-status Critical Current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
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
    • 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
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0229—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters
    • 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
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0237—Adjustable, e.g. focussing
    • 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
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0248—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using a sighting port, e.g. camera or human eye
    • 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
    • G01J3/02—Details
    • G01J3/04—Slit arrangements slit adjustment
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/16—Beam splitting or combining systems used as aids for focusing

Landscapes

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

Abstract

The invention provides a spectrographic device 10 for astronomical spectroscopy, comprising an entrance slit 12 arranged to transmit a portion of a light beam received on the slit 12; a collimator 14 operable to collimate the portion of the beam transmitted through the slit 12; a dispersive element 16 configured to receive the collimated beam from the collimator 14 and to disperse the light; and a focuser 18 arranged to produce a focused image of the dispersed light. The focuser 18 is associated with a focus aid adapted to be insertable into the path of the dispersed light, preferably between the dispersive element 16 and the focuser 18, to thereby facilitate focusing of the device. The present device is particularly well suited for amateur-sized astronomical telescopes. The focus aid may comprise an image sharpener such as a slit mask. Alternatively the focus aid may comprise a Hartmann mask. The entrance slit 12 may be angled to the optical axis 20 of the device 10 to permit viewing of the slit 12 by way of light reflected by the slit 12.
GB1120579.6A 2011-11-29 2011-11-29 A spectrographic device for astronomical spectroscopy including a focus aid Withdrawn GB2497095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1120579.6A GB2497095A (en) 2011-11-29 2011-11-29 A spectrographic device for astronomical spectroscopy including a focus aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1120579.6A GB2497095A (en) 2011-11-29 2011-11-29 A spectrographic device for astronomical spectroscopy including a focus aid

Publications (2)

Publication Number Publication Date
GB201120579D0 true GB201120579D0 (en) 2012-01-11
GB2497095A GB2497095A (en) 2013-06-05

Family

ID=45508925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1120579.6A Withdrawn GB2497095A (en) 2011-11-29 2011-11-29 A spectrographic device for astronomical spectroscopy including a focus aid

Country Status (1)

Country Link
GB (1) GB2497095A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682469B (en) * 2014-09-10 2021-04-02 电子光子集成电路股份有限公司 Curved grating spectrometer and wavelength multiplexer or demultiplexer with extremely high wavelength resolution
CN112345076A (en) * 2020-09-16 2021-02-09 北京卓立汉光仪器有限公司 Spectrum-taking system capable of adjusting resolution ratio and spectrum-taking machine
FR3163448A1 (en) * 2024-06-17 2025-12-19 Thomas Oksenhendler A device for measuring high-resolution spatio-spectral images using multiple detectors and an inclined slit.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3250426B2 (en) * 1995-09-27 2002-01-28 安藤電気株式会社 Optical spectrum measurement device
US5719672A (en) * 1996-09-26 1998-02-17 Varian Associates, Inc. Echelle spectrometer with a shaped oriented slit
US5982497A (en) * 1998-07-09 1999-11-09 Optical Insights, Llc Multi-spectral two-dimensional imaging spectrometer

Also Published As

Publication number Publication date
GB2497095A (en) 2013-06-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)