Anomalies of refraction and of the muscles of the eye.

  • Tiffany, Flavel B. (Flavel Benjamin), 1846-1918.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Anomalies of refraction and of the muscles of the eye. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    Fig. Page. 10 Principal focus of concave mirror 27 11 Reflection by concave mirror of rays coming from between principal focus and the mirror 27 12 Reflection from convex mirrors—principal virtual focus 28 13 Virtual focus from divergent rays 28 14 Image from concave mirror when object is beyond center of curvature 29 15 Image from concave mirror when object is between mirror and principal focus 30 16 Image of one looking into a concave mirror when near it 30 17 Reflection of rays when object is at the principal focus 31 18 Image produced by convex mirrors 81 19 Refraction of rays 34 20 Cause of refraction 34 21 Effect of refraction » 35 22 Section of prism 36 23 Deflection of image through prism 37 Spherical lenses 37 24 Refraction by double convex lens—principal focus 38 25 Focal length of plano-convex and of double convex lenses. ... 39 26 Principal axis of convex lens 39 27 Optical center and secondary axis of convex lens 40 28 Refraction by convex lens of rays emanating from the princi- pal focus 40 29 Refraction by convex lens of rays coming from beyond the principal focus at a finite distance 41 30 Refraction by convex lens of rays coming from between the lens and the principal focus 41 31 Refraction of parallel rays by double concave lens 41 32 Principal virtual focus of double concave lens 42 33 Image produced by convex lens when object is at a distance greater than twice the focal length of the lens 43 34 Image when object is less than twice the focal length from lens 44 35 Image formed by convex lens when object is at a distance equal to twice the focal length of the lens 44 36 Object at the principal focus 45 37 Image produced by convex lens when object is between the lens and the principal focus 45 38 Simple microscope 46 39 Use of convex lens for discharging cannon (burning glass). ... 46 40 Diagram of compound microscope 47 41 Diagram of astronomical telescope 47 42 Diagram of camera obscura 48 43 Formation of images by double concave lenses 48 44 Aperture of lens 49 45 Spherical aberration 49