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BS ISO 23364:2021

BS ISO 23364:2021

$142.49

Optics and Photonics. Bulk absorption optical filters

Published By Publication Date Number of Pages
BSI 2021 30
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This document specifies filter functions of uncoated bulk absorption filters for optical applications excluding ophthalmic optics (spectacles) and gives a standard form for their specification. Additionally, basic definitions and a description of the specification concerning optical bulk absorption filters are given.

This document specifies the optical properties of the filters and the test and measurement methods whenever necessary.

This document does not specify any material properties (internal quality, homogeneity, etc.) and it does not apply to any production method.

This document applies to both the raw material (filter glass, filter plastics, etc.) and the polished component.

NOTE 1

Colorimetric parameters for the description of the filter function are specified in e.g. ISO 11664-1 and ISO 11664-2 .

NOTE 2

For filters where the spectral transmission characteristics are achieved by the application of optical coatings, see ISO 9211 series .

NOTE 3

In the case of high power applications, further optical effects may occur.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
3.1 Boundary conditions
10 3.2 Optical properties
13 3.3 Calculated parameters
14 3.4 Definition of bulk absorption filters by their function
15 4 Measurement
4.1 General
4.2 Measurement conditions
5 Numerical specification and graphical representation of spectral characteristics
5.1 General
16 5.2 Rules for the numerical specification of spectral characteristics
5.2.1 Rules for the spectral characteristics, Ļ„i, Ļ„, Ļ„V, a, E, D or Īø
5.2.2 Rules for the cut-off wavelength and peak transmittance
17 5.3 Rules for the graphical representation of spectral characteristics
18 5.4 Graphical representation of optical functions
5.4.1 General
5.4.2 Attenuating function (ND)
19 5.4.3 Function bandpass (BP) or bandrejection (BR)
21 5.4.4 Function shortpass (SP) or longpass (LP)
23 Annex A (informative) Graphical representation of transmission using a diabatic scale as an ordinate
25 Annex B (informative) Recommendation for the thickness of the witness sample
27 Annex C (informative) Spectral weighting function for luminous transmittance
28 Bibliography

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BS ISO 23364:2021
$142.49