Objective Lens - Law Dictionary Search Results
Cinematograph
25 to 50 frames per second and intermittently before an objective lens and producing by persistence of vision the illusion of continuous
objective lens
An object glass See under Object n
Camera obscura
An apparatus in which the images of external objects formed by a convex lens or a concave mirror are
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macro lens
at short distances so as to achieve photographic magnifications of objects larger than with standard lenses … a camera lens designed to focus at short distances so as to achieve
magnifying glass
A single convex lens which magnifies the apparent dimensions of objects seen through it and is used to produce an enlarged
Microscope
combination of lenses for making an enlarged image of an object which is too minute to be viewed by the naked … An optical instrument consisting of a lens or combination of lenses for making an enlarged image of
Presbyopia
and recession of the near point of vision so that objects very near the eyes can not be seen distinctly without … advancing age It is due to rigidity of the crystalline lens which produces difficulty of accommodation and recession of the near
Lens
changing the direction of rays of light and thus magnifying objects or otherwise modifying vision In practice the curved surfaces are
Myopia
condition of the eye in which the rays from distant object are brought to a focus before they reach the retina … image It is corrected by the use of a concave lens
eyepiece
instrument through which the image formed by the mirror or object glass is viewed … The lens or combination of lenses at the eye end of a
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