BS 4779:1971
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Recommendations for measurement of the optical transfer function of optical devices
Hardcopy , PDF
26-07-2021
English
10-11-1971
Cooperating organizations
Foreword
Recommendations
1. Scope
2. Definitions
3. General requirements
4. Detailed equipment requirements
5. Specification of measurement conditions
6. Points requiring special attention during OTF
measurements
7. Presentation of results
8. Test on OTF equipment
Table
1. Bench error delta z giving rise to a change of 0.05
in MTF for an aberration-free lens
Figures
1. Definition of phase and modulation
2. Nodal slide type bench
3. Camera type bench
4. Sign convention for field direction and lens
orientation
5. delta z error of an optical bench
6. Presentation of results
7. Slit-width correction factors: single slit, width
of 1 mu m
8. Slit-width correction factors: crossed slits of
equal width
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