IS 5920 : Part 5 : 2024/ISO 10110-8 : 2019 Optics and Photonics - Preparation of Drawings for Optical Elements and Systems - Part 5 Surface Texture

ICS 37.020; 01.100.20

PGD 39

NATIONAL FOREWORD

This Indian Standard (Part 5) which is identical to ISO 10110-8 : 2019 'Optics and photonics - Preparation of drawings for optical elements and systems - Part 8: Surface texture' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Optics and Photonics Sectional Committee and approval of the Production and General Engineering Division Council.

This standard specifies rules for the indication of the surface texture of optical elements. This standard also specifies method for characterizing the residual surface that is left after detrending by subtracting the surface form.

IS 5920 (Part 1) supersedes the originally published Indian Standard IS 5920 : 1970 'Recommendation for the preparation of drawing for optical elements and system'.

This standard has been published in thirteen parts. The other parts in this series are:

Part 1 General

Part 2 Surface form tolerances

Part 3 Centering tolerances

Part 4 Surface imperfections

Part 6 Surface treatment and coating

Part 7 Non-tolerance data

Part 8 Aspheric surfaces

Part 9 Wave front deformation tolerance

Part 10 Diffractive surfaces

Part 11 Laser irradiation damage threshold

Part 12 Stress birefringence, bubbles and inclusions, homogeneity, and striae

Part 13 General description of surfaces and components

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current-practice is to use a point (.) as the decimal marker.