WIDE-ANGLE IMAGING LENS ASSEMBLY WITH THREE LENSES
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Oct 18, 2013
filing date -
Jun 20, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wide-angle imaging lens assembly comprises a fixing diaphragm and an optical set including three lenses. An arranging order from an object side to an image side is: a first lens; a second lens; a third lens. Two surfaces of the third lens have at least one inflection point from the optical axis to an end point of the aspheric surfaces. At least one surface of the three lenses are aspheric. The fixing diaphragm is disposed at any position between an object and the second lens. By the concatenation between the lenses and the adapted curvature radius, thickness, interval, refractivity, and Abbe numbers, the assembly attains a big diaphragm with ultra-wide-angle, a shorter height, and a better optical aberration.
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