MCNEIL ENGINE ERING
10252 HATHERLEIGH DRIVE, BETHESDA MARYLAND 20014 301 530-1622
TECH MEMO NO. 16
Subi: Determination of Lim ting Resolution of Underwater Lens
Owing to Change in Back Focal Dist e Caused by Change
in Water Refracti Index
ip
grap! ohy s Edwards : 9
Ti ilton, L.W.; l ylor, J.K., Refract Index and
Dispersion of Distilled ter for Visible a iir at
Temperatures fron > 0 |, Re iat'1 Bur, Standards,
Vol. 20, on 1938
Waxler, Mo. Weir, C.E., and Schamp, HıW., Jr., Effect
of Pressure and Temperature Upon the Optical Dispersion
of Benzene, Carbon Tetrachloride and Water, J. Res. Nat'l
Bur, St: rds, | 68A, No. 5, Sept.-Oct. 1965.
McKinney, J.E. and Lindsay, R., Section at Density
and Compressibility c ,iquids, AMERICAI TITUTE OF
PHYSICS HANDBOOK, McGraw-Hill Book Compan Third Edition,
=
McNeil, G.T., Optical Fundamentals of Underwater FPhotc-
® Hd .
de
52
€
C
bods
»
Q3
M
4 9" 7 2 o
Vine, A.C., £ n 2j. Oceanographic Data, AMERICAN
)0
INSTITUTE OF PHYSICS HANDBOOK, McGraw-Hill Book Company,
Third Edition, 1972,
Bjerknes, V., Dynamic Meterology and SERRES
Carnegie Institution Washington EE on 38, 1010,
Jackson, H.A., (private cor mmunications) | 1975-Mar.
1976.
Washer, F.Ë and zardner, IU Mecnod for Determining
the ROSEO lving Power of I aphic Lenses, Nat'l Bur.
Standa ircular 53 |
Ref. 1 was orginally sponsored under Naval 2ontract No. NO00600-
68-C-1555 dated 28 June 1968, During the preparation of the
manuscript within a six month period, an equation for the deter-
mination of se: ter refractive inde as a function of wave-
length, tempere | inity, and depth was not located in
the technical literature for refer: It then became necessary
to derive an ical equation for t determination of the sea
water refra ctive indo to utilize for the presentation of numer-
ical examples as a means to illustrate the general range of
water refractive inde ; ti may be encountered in the practice
of underwater photography. +» 10-1 of Ref. 1, with the sea
water surface ric re S S lows:
