The Refraction and Accommodation of the Eye and Their AnomaliesPentland, 1886 - 600 pages |
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Page vii
... latter are followed from one medium to the other through a plane , and then through spherical surfaces , which form systems more and more complex . The work , however , is not intended to be a general treatise on Optics . In all that ...
... latter are followed from one medium to the other through a plane , and then through spherical surfaces , which form systems more and more complex . The work , however , is not intended to be a general treatise on Optics . In all that ...
Page 11
... latter The latter rays will pass along the surface of the water . But rays forming with the surface an angle greater than 48 ° 35 ' will no longer emerge LIMIT ANGLE - TOTAL REFLECTION . 9.
... latter The latter rays will pass along the surface of the water . But rays forming with the surface an angle greater than 48 ° 35 ' will no longer emerge LIMIT ANGLE - TOTAL REFLECTION . 9.
Page 25
... latter . L A FIG . 12 . B " Another luminous point A ' ( Fig . 12 ) , situated at the same distance from the surface , ought to act in exactly the same way as L ' . It will likewise form its image upon the axis passing through this ...
... latter . L A FIG . 12 . B " Another luminous point A ' ( Fig . 12 ) , situated at the same distance from the surface , ought to act in exactly the same way as L ' . It will likewise form its image upon the axis passing through this ...
Page 37
... latter , passing through the second surface to re - enter the first medium . The line , on which are situated the centres of curvature of the two surfaces , is called the principal axis of the lens . This is the principal optic axis ...
... latter , passing through the second surface to re - enter the first medium . The line , on which are situated the centres of curvature of the two surfaces , is called the principal axis of the lens . This is the principal optic axis ...
Page 48
... latter . When it is in the principal plane , all rays coming from any point of the object are rendered parallel to the corresponding ray of direction . L ' FIG . 26 . Between the focus and the lens , the object emits rays which are ...
... latter . When it is in the principal plane , all rays coming from any point of the object are rendered parallel to the corresponding ray of direction . L ' FIG . 26 . Between the focus and the lens , the object emits rays which are ...
Other editions - View all
The Refraction and Accommodation of the Eye and Their Anomalies Edmond Landolt No preview available - 2023 |
The Refraction and Accommodation of the Eye and Their Anomalies Edmond Landolt No preview available - 2018 |
Common terms and phrases
acuteness of vision adapted ametropia amplitude of accommodation angle anisometropia asthenopia astigmatism atropine axis becomes binocular vision centimetres centre choroid ciliary muscle concave glass convex glass convex lens cornea correcting-glass correction corresponding crystalline lens determine diminished dioptric apparatus dioptric system dioptries diplopia direction distant vision divergent Donders dynamic refraction effort of accommodation emmetropia emmetropic eye equal focal distance formula fundus Hence horizontal hyperopia hyperopic hyperopic eye increase index of refraction infinity inverted Landolt latter lenses less lines of fixation luminous point luminous rays maximum medium metre metre-angles millimetres mydriatic myopes myopia myopic eye nearer nodal point object observed obtain Ophth ophthalmoscope optical optometer patient placed posterior principal focus principal meridians principal point prism produced punctum proximum punctum remotum pupil range of accommodation refractive power refractive surface retina retinal images second principal situated spasm spherical static refraction strabismus tion vertical visual acuteness
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