Refraction and lenses Crossword

lens that focus the image in a camera
a lens made to correct astigmatism
are lens that are compound or lens system that are used to free of astimatism and able to form point images
lens that focus on the image in a camera
lens that are used to concertrate the light on the object
is thin and curve to fit the cornea in order to correct the vision
lens that are used of optical crown
designed to produce magnified imaged of small objects
sends a beam of light onto a slide or a film, forming a greatly magnified, real, or inverted image onto a screen
are familiar objects and element of "magnifying glasses"
producing a magnified image of distant objects
lens that are farthest form the eye in an optical instruments
device that controls or produces light
a device that helps aid vision
lens that correct defective vision in one eye
lens that light passes through such as parallel beam to cause diverge or spread out
this is concave lens on one side but convex on other side
used to replace the eye of someone who needs repair the natural lens such as implant
composed of a number of smaller lenses that are arranged to make lightweight lens of large diameter and short focal length
lens or system of lenses in a telescope