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pro vyhledávání: '"Barry A. J. Clark"'
Publikováno v:
The Emergence of Astrophysics in Asia ISBN: 9783319620800
Australia has a long astronomical tradition, extending back as much as 50,000 years. However, in this chapter we will only very quickly review the developments that occurred in Australian astronomy during the eighteenth and nineteenth centuries, befo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ab1074ac3b7aa9b336ddcfe1154613c
https://doi.org/10.1007/978-3-319-62082-4_17
https://doi.org/10.1007/978-3-319-62082-4_17
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 88:197-199
(2005). Is artificial light at night too much of a good thing? Clinical and Experimental Optometry: Vol. 88, No. 4, pp. 197-199.
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 81:41-42
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 57:107-114
A survey was made of corneal topography in ‘normal’ eyes, i.e. eyes meeting certain requirements such as near-emmetropia, absence of disease and Injury, and no prolonged wear of contact lenses. Previous investigations Indicated that there was no
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 57:22-27
The principle of operation of the autocollimating photokeratoscope is described briefly. It is shown how spherical test surfaces can be used to provide a valid simulation of aspheric surfaces such as the human cornea, and several trials of the instru
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 56:443-447
Measurements of the author's right eye were made with the autocollimating photokeratoscope during working hours for a few days. Using a single number to quantify corneal shape at any given observation, the shape appeared to alter cyclically over the
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 56:448-453
Attempts were made to determine the thickness and variations of thickness of the pre-corneal film by means of interference fringes. A known technique proved relatively simple to apply but only gave information about the superficial oily layer of the
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 57:65-69
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 59:259-266
The October 1976 total solar eclipse will be well placed for observation by millions of Australians. Previous eclipses have produced numerous cases of eye injury despite well-organised and extensive campaigns to counter the problem by advice not to w
Autor:
Barry A. J. Clark
Publikováno v:
Clinical and Experimental Optometry. 50:154-161
Experimental evidence on the effects of infra-red radiation on the retina is reviewed and used as a basis for deriving infra-red transmission limits for welding filters. Adopting a value of 1.8 cal/cm2/min as the lowest retinal energy density likely