ISO 14490-10:2021 PDF

Optics and photonics — Test methods for telescopic systems — Part 10: Test methods for axial colour performance

First page of standard ISO 14490-10:2021

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Title (English):

ISO 14490-10:2021

Optics and photonics — Test methods for telescopic systems — Part 10: Test methods for axial colour performance

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 6
Publication date:: February 10, 2021
Edition:: ISO IS 14490 edition 1 version 1
ICS:: 37.020

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Description (English):

This document specifies the test method for the measurement of the axial colour performance which includes axial chromatic aberration and spherical aberration of telescopic systems and observational telescopic instruments.

Technical details

Technical committee: ISO/TC 172/SC 4 - Telescopic systems
SKU: ISO 14490-10:2021

Abstract

Overview

ISO 14490-10:2021 specifies standardized test methods for measuring the axial colour performance of telescopic systems and observational telescopic instruments. Axial colour performance covers the combined effects of axial chromatic aberration (wavelength-dependent focal shift) and spherical aberration (monochromatic focus variation). The standard defines a reproducible procedure to quantify colour-dependent focal shifts so manufacturers, test labs and optical engineers can assess and compare imaging colour performance.

Key topics and requirements

Measurement principle: Evaluate the best-focus position on-axis for three spectral bands (green e = 546 nm, blue F’ = 480 nm, red C’ = 644 nm) to determine axial focal shift relative to green.
Test arrangement: Uses a collimator with a back-lit negative test target at the focal plane, a bright light source, spectral filters (narrow-band, FWHM

Related standards

Other ISO standards

Overview

Key topics and requirements

Measurement principle: Evaluate the best-focus position on-axis for three spectral bands (green e = 546 nm, blue F’ = 480 nm, red C’ = 644 nm) to determine axial focal shift relative to green.
Test arrangement: Uses a collimator with a back-lit negative test target at the focal plane, a bright light source, spectral filters (narrow-band, FWHM

ISO 14490-10:2021 PDF

Technical details

Abstract

Overview

Key topics and requirements

Related standards

Abstract

Overview

Key topics and requirements

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