F. H. Richardson's bluebook of projection (1935)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1935
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000111
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
August 01, 2024
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LENSES AND MIRRORS 93 — 27. By what means are lenses corrected ? 28. What is a light ray, or a ray of light ? 29. What is a Meniscus Lens? 30. Optically, what does the term Perpendicular mean? yr -31. What is meant by the Plane of a lens? 32. Describe a piano convex lens. ~33. What is the Principal Axis of a lens? 34. What is the Projection Angle? 35. What is Refraction and what causes it ? 36. What is meant by a Simple Lens? t/jnAs** «■» 37. What is Spherical Aberration ? 38. What is meant by Working Distance of a projection lens? 39. What difference is there between Working Distance and Back Focus? Wl. Lens Action, page 108 40. Upon what is lens action wholly based? 41. Does each pin-point of the surface of a lens refract light differently ? 42. Does a light ray change its course while passing through the body of a lens? — 43. Upon what three things is lens action upon light dependent ? 44. If a ray of light meets both surfaces of a lens exactly at right angles what will happen ? 45. If a light ray meets a lens surface at an angle what hap pens ? 46. Explain the various points in connection with Fig. 33. Image Formation, page 111 47. Examining Fig. 34, explain how the image of object X is formed. 48. Are uncorrected lenses faulty and how may they be corrected? ^fe^vrv Focal Length, page 112 -49. What is meant by the focal length of a simple lens?. 50. By what elements of a lens is focal length chiefly affected?