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Camera lens and camera device
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A camera lens and camera device technology, applied in optical components, instruments, optics, etc., can solve the problems of hindering effective light accumulation, unfavorable for high resolution, disadvantageous, etc.
Active Publication Date: 2021-03-05
JIANGXI JINGCHAO OPTICAL CO LTD
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Problems solved by technology
This hinders the accumulation of effective light at the peripheral portion of the imaging element, which is not conducive to high resolution compared with the case where the incident angle is small.
In addition, it becomes disadvantageous when using an imaging device having a large imaging area for high resolution.
Method used
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[0235] face number 9 10 11 KA 4.4518022E+00 1.0847375E+00 1.0012070E+00 A3 -7.7683244E-18 1.0565333E-17 -2.2279681E-17 A4 2.2472574E-02 9.4942143E-03 2.1966207E-02 A5 -1.6057142E-02 -1....
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Abstract
The present invention provides a high-performance imaging lens capable of wide-angle and high-resolution imaging, and an imaging device including the imaging lens. The imaging lens is sequentially composed of a first lens (L1) with a concave shape on the image side and negative refractive power, a second lens (L2) with negative refractive power, and a convex surface on the image side from the object side. a third lens (L3) having a positive refractive power, a fourth lens (L4) whose surface on the image side is convex, a fifth lens (L5) whose surface on the image side is convex and has positive refractive power, and The surface on the object side is concave and has a sixth lens (L6) with negative refractive power, and satisfies the prescribed conditions related to the first lens (L1), the second lens (L2) and the third lens (L3) Mode.
Description
technical field [0001] The present invention relates to an imaging lens suitable especially for a camera for sensing and an imaging device including the imaging lens. Background technique [0002] In recent years, cameras have been mounted on vehicles for assistance in confirming blind spots such as the driver's side and / or rear, or for image recognition of vehicles, pedestrians, and / or obstacles around the vehicle. As an imaging lens that can be used in such a sensing camera, for example, an imaging lens described in Patent Document 1 below is known. Patent Document 1 discloses a lens system having a six-element structure. [0003] prior art literature [0004] Patent Document 1: Specification of US Patent Application Publication No. 2015 / 0268446 [0005] In general, sensing cameras are expected to capture a range equal to or greater than the human field of view, and thus require a certain level of wide-angle performance. [0006] In the lens system of Patent Document 1...
Claims
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Application Information
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