Abstract
The re-adaptation times of observers subjected to white or yellow headlamp glare has been measured in a scaled laboratory representation of highway conditions. Some eighty-three observers have taken part within an age range of 18–66 years. There is found to be a positive correlation between re-adaptation time and age in both illuminants. Furthermore, the speed of re-adaptation is greater, and the percentage of accuracy higher, in white than in yellow filtered tungsten light of equal luminance.
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References
1.
Hopkinson
R. G.
, Trans. Illum. Eng. Soc. (London) , 5 , 1 (1940 ).
2.
Jehu
V. J.
, Light and Lighting , 47 , 287 (1954 ).
3.
De Boer
J. B.
, Lux , March—June (1959 ).
4.
Pages
R.
, and
Fleury
D. A.
, Ann. opt. oculaire , 4 , 9 , and 4 , 39 (1956 ).
5.
Dunbar
C.
, Trans. Illum. Eng. Soc. (London) , 4 , 137 (1939 ).
6.
Bouma
P. J.
, Phillips Tech. Rev. , 9 , 149 (1947–8 ).
7.
Arnulf
A.
, Wenner-Gren Centre International Symposium Series , 2 , 15 (1963 ).
8.
Wolf
E.
, Arch. Ophthal. , 64 , 502 (1960 ).
9.
Guth
S. K.
, Amer. J. Optom. , 34 , 463 (1957 ).
10.
Wright
W. D.
, Researches on Normal and Defective Colour Vision (London , Henry Kimpton , 1946 ).
11.
Hartmann
E.
, Wenner-Gren Centre International Symposium Series , 2 , 95 (1963 ).
12.
Davey
J. B.
, and
Sheridan
M.
, Brit. J. physiol. Opt. , 14 , 183 (1957 ).
13.
Davey
J. B.
, Brit. J. physiol. Opt. , 13 , 62 (1956 ).
14.
Birren
J. E.
, and
Botwinick
J.
, J. Geront. , 10 , 433 (1955 ).
15.
Fisher
R. A.
, Statistical Methods for Research Workers (London , Oliver & Boyd Ltd , 1941 ).
16.
Weale
R. A.
, Trans. Illum. Eng. Soc. (London) , 26 , 95 (1961 ).
17.
Birren
J. E.
Bick
M. W.
, and
Fox
C. J.
, J. Geront. , 3 , 267 (1948 ).
18.
Weale
R. A.
, The Aging Eye (London , H. K. Lewis & Co. Ltd , 1963 ).
19.
Roper
V. J.
, and
Howard
E. A.
, Trans. Illum. Eng. Soc. , 33 (1938 ).