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Assembly for spectrophotometric measurements of turbid samples using a polychromatic rectangular light sheet

A polychromatic light, component technology for easy repositioning, improved flexibility, improved efficiency in spectrometry/spectrophotometry/monochromators, color/spectral property measurement, material analysis by optical means, etc. and/or the effect of accuracy

Pending Publication Date: 2021-10-15
SPEC IMAGING AB
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem with prior art solutions using spectrophotometry is the efficiency with which measurements are performed and the accuracy with which results are archived

Method used

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  • Assembly for spectrophotometric measurements of turbid samples using a polychromatic rectangular light sheet
  • Assembly for spectrophotometric measurements of turbid samples using a polychromatic rectangular light sheet
  • Assembly for spectrophotometric measurements of turbid samples using a polychromatic rectangular light sheet

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Embodiment Construction

[0035] As mentioned above, it should be emphasized that the term "comprises / comprising" (which can be replaced by "includes / including") when used in this specification is used for Specifies the presence of said features, integers, steps or components, but does not preclude the presence or addition of one or more other features, integers, steps, components or combinations thereof. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0036] Embodiments of the present disclosure will be more fully described and illustrated hereinafter with reference to the accompanying drawings. However, the solutions disclosed herein may be implemented in many different forms and should not be construed as limited to the implementations set forth herein.

[0037] As mentioned above, many conventional methods of spectrophotometry use a continuously applied monochromatic beam of light to illuminat...

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Abstract

An assembly for measurements of one or more optical parameters of a medium is disclosed. The assembly comprises a light sheet generator, a light intensity modulator, a holder for a sample, and an optical sensor. The light sheet generator is configured to provide a polychromatic light sheet comprising a light spectrum extending in a first spatial dimension, wherein the polychromatic light sheet has a propagation path in a second spatial dimension. The light sheet generator comprises a light source configured to provide white light, a dispersive element configured to spread the white light in the first spatial dimension to provide the light spectrum, and an optical slit extending in the first spatial dimension configured to provide the polychromatic light sheet by limitation of the spread white light. The light intensity modulator is configured to provide an intensity modulated polychromatic light sheet by applying -to the polychromatic light sheet -an intensity modulation having a periodical (or substantially periodical) pattern in the first spatial dimension. The holder for a sample of the medium is configured to enable the intensity modulated polychromatic light sheet to illuminate the sample. The optical sensor is configured to record intensity of light exiting the sample over the light spectrum for provision of the one or more optical parameters. A method of using the assembly for measuring one or more optical parameters of a medium is also disclosed.

Description

technical field [0001] This disclosure relates to the field of spectrophotometry. Background technique [0002] In some conventional methods of spectrophotometry, the medium under inspection is illuminated with monochromatic light (e.g. selected from a polychromatic light source) and a photodetector is placed on the opposite side of the medium to the illuminated side, To record the remaining light intensity after the monochromatic light passes through the sample. The absorption or attenuation coefficient of a medium can be determined for the wavelength of monochromatic light by calculating the ratio between the light intensity of the monochromatic light before passing through the sample and the light intensity after passing through the sample. [0003] More elaborate methods of spectrophotometric measurements are also known. A system for measuring optical properties of a medium applying monochromatic light is described, for example, in WO 2012 / 015344 A1. In this system, t...

Claims

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Application Information

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IPC IPC(8): G01J3/00G01N21/17G01N21/31
CPCG01N21/255G01N21/49G01N21/645G01N2021/6463G01N2201/0691G01N2201/0635G01N2201/0675G01N21/4738G01N21/4795G01N21/532G01N21/31G01J3/0229G01J3/2846G01J3/433
Inventor 爱德华·贝罗卡尔威廉·蔡兹埃利亚斯·克里斯滕松热雷米·祖埃
Owner SPEC IMAGING AB
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