Five-element wide-angle camera lens
By adjusting the parameters of the first lens and the second lens, the molding process of the second lens is improved, and the problems of low production efficiency and poor yield in the prior art are solved, and a wide-angle lens with high-definition image quality and miniaturization are realized.
CN115639661BActive Publication Date: 2025-03-25INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)
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Patent Information
- Application Number
- CN202211308357.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-10-25
AI Technical Summary
Technical Problem
When forming the second lens of the existing five-piece wide-angle lens, it is difficult to fill the resin in the mold, resulting in low production efficiency and easy reduction in yield.
Method used
A five-piece wide-angle camera lens is designed. By adjusting the refractive index and focal length of the first lens and the second lens, the image side of the second lens is changed to a shallow concave or convex surface, and manufactured by ordinary processes, which improves yield and production efficiency.
Benefits of technology
It realizes high-definition image quality and miniaturization wide-angle lenses, improves yield and production efficiency, and has good market competitiveness.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a five-piece wide-angle camera lens, which has the following sequence from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a filter, wherein the first lens is a glass spherical lens, and the remaining lenses are plastic aspherical lenses, and the fourth lens and the fifth lens constitute a cemented lens. The first lens has a negative focal power, and its object side is a convex surface, and its image side is a concave surface; the second lens has a negative focal power, and its object side is a concave surface; the third lens has a positive focal power, and its object side is a convex surface, and its image side is a convex surface; the fourth lens has a positive focal power, and its object side is a convex surface, and its image side is a concave surface; the fifth lens has a positive focal power, and its object side is a convex surface, and its image side is a convex surface. The aperture is located between the third lens and the fourth lens. The present invention has the characteristics of high resolution, large field of view, low distortion, simple structure, good image quality, etc.
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