38 
4. IQR - Ingelstam, E. and Lindberg, P. J., NBS Circular 
52(>, P. 171, April (195^) A Combined Test Procedure 
for Camera Lenses and Photoelectric Examination of 
Intensity Distribution in Line Images. 
See Also: Back. A., Transactions of the Royal Institute of 
Technology, Stockholm, No. 206, 1963 - A New Test Bench for 
Measuring Optical Transfer Functions of Aerial Camera Lenses. 
5. SIRA - Baker, L. R., Japanese J. of Appl. Phys. 4, Supple 
ment 1, p. 146 (1983) (Proceedings of the Conference on 
Photographic and Spectroscopic Optics, Tokyo and Kyoto, 
(1964)) Automatic Recording Instrument for Measuring 
Optical Transfer Function. tr 
6. Itek - Shannon, R.R. and Newman, A.H., Applied Optics, 2j_ 
363» (1963) An Instrument for Measurement of the Optical 
Transfer Function. 
See Also; Final Report - Study of Image Evaluation Tech 
niques, Contract No. AF 33 (657)-9^38, Itek Corp. (1966) 
7. OTI - Kapany, N.S., Nature, 188, 1084, (i960) Optical Image 
Assessment. 
8. NBS - Rosberry, F.W., Photogrammetric Engr 271 155i (1961) 
Measurement of Contrast in the Aerial Image. 
Table 5 
Narrow Band Spectral Conditions 
Laboratory 
Peak 
Line Half- 
PTB 
546 nm 
8 nm 
RAE 
546 nm 
8 nm 
BBC 
550 nm 
20 nm 
IOR 
550 nm 
25 nm 
SIRA 
546 nm 
66 nm 
ITEK 
546 nm 
3 nm 
OTI 
546 nm 
60 nm 
NBS 
546 nm 
6 nm