THIN-TYPE IMAGING LENS ASSEMBLY WITH FOUR LENSES
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Oct 15, 2013
filing date -
Jul 9, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An imaging lens assembly comprises a fixing diaphragm and an optical set including four lenses. An arranging order from an object side to an image side is: a first lens; a second lens; a third lens; and a fourth lens. At least one surface of the first and the second lenses is aspheric. At least one surface of the third and the fourth lenses are aspheric. The fixing diaphragm is disposed 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 wide-angle, a shorter height, and a better optical aberration.
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