McClure, Qualey & Rodack, LLP
Wide-angle lens assembly
A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with negative refractive power and includes a convex surface facing an object side and a concave surface facing an image side. The second lens is with positive refractive power. The third lens is with positive refractive power and includes a convex surface facing the object side. The fourth lens is with negative refractive power. The fifth lens is with positive refractive power and includes a convex surface facing the image side. The sixth lens is with negative refractive power. The wide-angle lens assembly satisfies: −1.5<f5/f≤−0.77, wherein f1 is an effective focal length of the first lens and f5 is an effective focal length of the fifth lens.
ASIA OPTICAL CO., INC. SINTAI OPTICAL (SHENZHEN) CO., LTD.
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Chien-Hung Yuan-Chen Ming-Huang Hsi-Ling
Chen Chen Tseng Chang