|
||||||||
|
Depth perception is the ability to see the world in three dimensions and to perceive distance. Although this ability may seem simple, depth perception is remarkable when you consider that the images projected on each retina are two-dimensional. From these flat images, we construct a vivid three-dimensional world. To perceive depth, we depend on two main sources of information: binocular disparity, a depth cue that requires both eyes; and monocular cues, which allow us to perceive depth with just one eye. you have an awareness of the relative distance of objects for two basic reasons. first, you have some preconceived notion of how large most things are, and from this and its apparent size in your field of view, you can estimate its distance. depth perception, especially when you are in motion or when objects are moving toward and away from you, is greatly enhanced by the fact that you have binocular vision. you see slightly different views through your left eye, as compared with your right eye, unless objects are extremely distant.
the
prisms act like mirrors to reflect the light and guide it to the eyepieces
|
|
||||||
|
||||||||
|