ISO 10110-18:2018
Optics and photonics — Preparation of drawings for optical elements and systems — Part 18: Stress birefringence, bubbles and inclusions, homogeneity, and striae
This document specifies the indication of tolerances for four categories of imperfections within optical materials — stress birefringence, bubbles and inclusions, homogeneity, and striae — in the ISO 10110 series, which standardizes drawing indications for optical elements and systems.
Tolerances are applied either to a finished optical part, a finished system of optical parts, or to the raw material used to manufacture an optical part.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 Terms for stress birefringence
3.2 Terms for bubbles and inclusions
3.3 Terms for homogeneity and striae
4 Specification of raw material and finished assemblies
4.1 Raw material
4.2 Finished assemblies
5 Stress birefringence
5.1 Principle of specification
5.2 Indication in drawings
5.2.1 Indication codes
5.2.2 Structure of the indication
5.3 Examples of indications for stress birefringence
6 Bubbles and inclusions
6.1 General
6.2 Principle of specification
6.3 Indication in drawings
6.3.1 Indication codes
6.3.2 Structure of the indication
6.4 Accumulation rule
6.5 Concentration rule
6.6 Examples of indications for bubbles
7 Homogeneity and striae
7.1 General
7.2 Indication in drawings
7.2.1 Indication codes
7.2.2 Structure of the indication
7.3 Homogeneity
7.3.1 Principle of specification
7.3.2 Quality classes
7.3.3 Focus term
7.4 Striae
7.4.1 Principles of specification
7.4.2 Density classes for striae
7.4.3 Wavefront deviation classes for striae
7.4.4 Comparison of density and wavefront quality classes for striae
7.4.5 Multiple orthogonal directions
7.5 Examples of indications for homogeneity and striae
8 Indications for “no requirement” or “default”
9 Indications on drawings
9.1 Table field
9.2 Drawing field
10 Indications for other optical material tolerances
11 Examples of indications on drawings
11.1 Example 1: Raw material properties in the drawing region
11.2 Example 2: Finished part bubble specification
11.3 Example 3: Finished part, all three properties
11.4 Example 4: System example
11.5 Example 5: Tabulation example
Annex A (informative) Stress optical constant and stress birefringence
Annex B (informative) Guidance for stress birefringence in optical glass
Annex C (informative) Guidance for bubble grades in optical glass
Annex D (informative) Guidance for homogeneity in optical glass
Annex E (informative) Guidance for striae in optical glass
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 Terms for stress birefringence
3.2 Terms for bubbles and inclusions
3.3 Terms for homogeneity and striae
4 Specification of raw material and finished assemblies
4.1 Raw material
4.2 Finished assemblies
5 Stress birefringence
5.1 Principle of specification
5.2 Indication in drawings
5.2.1 Indication codes
5.2.2 Structure of the indication
5.3 Examples of indications for stress birefringence
6 Bubbles and inclusions
6.1 General
6.2 Principle of specification
6.3 Indication in drawings
6.3.1 Indication codes
6.3.2 Structure of the indication
6.4 Accumulation rule
6.5 Concentration rule
6.6 Examples of indications for bubbles
7 Homogeneity and striae
7.1 General
7.2 Indication in drawings
7.2.1 Indication codes
7.2.2 Structure of the indication
7.3 Homogeneity
7.3.1 Principle of specification
7.3.2 Quality classes
7.3.3 Focus term
7.4 Striae
7.4.1 Principles of specification
7.4.2 Density classes for striae
7.4.3 Wavefront deviation classes for striae
7.4.4 Comparison of density and wavefront quality classes for striae
7.4.5 Multiple orthogonal directions
7.5 Examples of indications for homogeneity and striae
8 Indications for “no requirement” or “default”
9 Indications on drawings
9.1 Table field
9.2 Drawing field
10 Indications for other optical material tolerances
11 Examples of indications on drawings
11.1 Example 1: Raw material properties in the drawing region
11.2 Example 2: Finished part bubble specification
11.3 Example 3: Finished part, all three properties
11.4 Example 4: System example
11.5 Example 5: Tabulation example
Annex A (informative) Stress optical constant and stress birefringence
Annex B (informative) Guidance for stress birefringence in optical glass
Annex C (informative) Guidance for bubble grades in optical glass
Annex D (informative) Guidance for homogeneity in optical glass
Annex E (informative) Guidance for striae in optical glass
Bibliography