US Patent 7505210 Zoom lens and imaging device
Patent 7505210 was granted and assigned to Sony on March, 2009 by the United States Patent and Trademark Office.
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A zoom lens has good optical performance, is compact, and has a high magnifying power, and is suitable for use in a video camera, a digital still camera, a cellular phone, or the like, and an image pickup apparatus employs the zoom lens. The zoom lens includes a first lens group fixed upon zooming and having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, and a fifth lens group having a positive refractive power, which are successively arranged in the order from the object side. At least the second lens group and the fourth lens group are moved for zooming.
US Patent 07505210 Zoom lens and imaging device US Patent 7505210 Zoom lens and imaging device
US Patent 07505210 Zoom lens and imaging device
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