The stereoscope: its history, theory and construction |
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Seite 15
3 In the last of these theorems Aguilonius describes and explains, we believe for
the first time, the conversion of relief in the vision of convex and concave surfaces
. See Prop. xciv. p. 312. * Id., Id., p. 313. 5 Opera, tom. ii. p. 394. Lugduni, 1658. f
...
3 In the last of these theorems Aguilonius describes and explains, we believe for
the first time, the conversion of relief in the vision of convex and concave surfaces
. See Prop. xciv. p. 312. * Id., Id., p. 313. 5 Opera, tom. ii. p. 394. Lugduni, 1658. f
...
Seite 66
Immediately below the eye- tubes r, l, there should be a groove, G, for the
introduction of convex or concave lenses, when required for very longsighted or
short-sighted persons, or for coloured glasses and other purposes. 66
LENTICULAR ...
Immediately below the eye- tubes r, l, there should be a groove, G, for the
introduction of convex or concave lenses, when required for very longsighted or
short-sighted persons, or for coloured glasses and other purposes. 66
LENTICULAR ...
Seite 123
Owing, however, to the use of a concave eye-glass, the field of view is very small,
and therefore a convex glass, which gives a larger field, is greatly to be preferred.
The little telescopes, mn, op, may be made one and a half or even one inch ...
Owing, however, to the use of a concave eye-glass, the field of view is very small,
and therefore a convex glass, which gives a larger field, is greatly to be preferred.
The little telescopes, mn, op, may be made one and a half or even one inch ...
Seite 124
If placed together with their plane sides in contact, a plano-convex lens, ab, and a
plano-concave one, cd, of the same glass and the same focal length, will
resemble a thick watch-glass, and on looking through them, we shall see objects
of ...
If placed together with their plane sides in contact, a plano-convex lens, ab, and a
plano-concave one, cd, of the same glass and the same focal length, will
resemble a thick watch-glass, and on looking through them, we shall see objects
of ...
Seite 128
From these observations, it is manifest that the reverse effect must be produced
by a concave lens, or by the common stereoscope, when two coloured objects
are employed or united. The blue part of the object will be seen nearer the ...
From these observations, it is manifest that the reverse effect must be produced
by a concave lens, or by the common stereoscope, when two coloured objects
are employed or united. The blue part of the object will be seen nearer the ...
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The Stereoscope: Its History, Theory and Construction Sir David Brewster, Sir Keine Leseprobe verfügbar - 2015 |
The Stereoscope: Its History, Theory, and Construction, with Its Application David Brewster Keine Leseprobe verfügbar - 2019 |
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