Optical system, camera module, camera equipment and carrier

A technology of optical system, optical axis, applied in the field of photography

Pending Publication Date: 2021-07-27
TIANJIN OFILM OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an optical system, a camera module, a camera device and a vehicle for the problem of how to increase the shooting range while taking into account the imaging clarity.

Method used

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  • Optical system, camera module, camera equipment and carrier
  • Optical system, camera module, camera equipment and carrier
  • Optical system, camera module, camera equipment and carrier

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0088] refer to figure 1 , in the first embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a third lens L2 with positive refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with positive refractive power, fifth lens L5 with negative refractive power, sixth lens L6 with positive refractive power, and seventh lens L7 with positive refractive power. Each lens surface type of optical system 10 is as follows:

[0089] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0090] The object side S3 of the second lens L2 is convex, and the image side S4 is concave.

[0091] The object side S5 of the third lens L3 is convex, and the image side S6 is convex.

[0092] The object side S7 of the fourth lens L4 is a plane, and the image side S8 is a convex surface.

[0093] Th...

no. 2 example

[0117] refer to image 3 , in the second embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a third lens L2 with positive refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with positive refractive power, fifth lens L5 with negative refractive power, sixth lens L6 with positive refractive power, and seventh lens L7 with positive refractive power. Each lens surface type of optical system 10 is as follows:

[0118] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0119] The object side S3 of the second lens L2 is convex, and the image side S4 is concave.

[0120] The object side S5 of the third lens L3 is convex, and the image side S6 is convex.

[0121] The object side S7 of the fourth lens L4 is a plane, and the image side S8 is a convex surface.

[0122] T...

no. 3 example

[0135] refer to Figure 5, in the third embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a third lens L2 with positive refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with positive refractive power, fifth lens L5 with negative refractive power, sixth lens L6 with positive refractive power, and seventh lens L7 with positive refractive power. Each lens surface type of optical system 10 is as follows:

[0136] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0137] The object side S3 of the second lens L2 is convex, and the image side S4 is concave.

[0138] The object side S5 of the third lens L3 is convex, and the image side S6 is convex.

[0139] The object side S7 of the fourth lens L4 is a plane, and the image side S8 is a convex surface.

[0140] Th...

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Abstract

The invention relates to an optical system, a camera module, camera equipment and a carrier. The optical system includes a first lens element with negative refractive power, a second lens element with negative refractive power having an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region, a third lens element with positive refractive power having an object-side surface and an image-side surface being convex in a paraxial region, a fourth lens element with positive refractive power having an image-side surface being convex in a paraxial region, a fifth lens element with negative refractive power having object-side and image-side surfaces being concave in paraxial regions, a sixth lens element with positive refractive power having an object-side surface and an image-side surface being convex in a paraxial region, and a seventh lens element. The optical system satisfies the following relation: 18.5 mm<f1*f2 / f<23.3 mm, f1 is the effective focal length of the first lens, f2 is the effective focal length of the second lens, and f is the effective focal length of the optical system. The optical system has the characteristic of large visual angle and also has excellent imaging definition.

Description

technical field [0001] The invention relates to the technical field of photography, in particular to an optical system, a camera module, a camera device and a carrier. Background technique [0002] With the development of technology, drones play an important role in more and more industries. In the field of plant protection, drones are used as flying platforms to carry medicine boxes, spraying equipment or monitoring equipment to spray pesticides or collect data on farmland. On the other hand, the use of drones carrying camera equipment can carry out large-scale aerial photography of the target area to achieve the effect of overlooking the sky; in the field of environmental protection, drones can be used for environmental monitoring, for example, forest fires can also be monitored . However, in these applications, UAVs are often required to have both a large viewing angle and high-definition shooting capabilities. [0003] However, for traditional camera equipment, as the...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18G02B7/02G03B30/00
CPCG02B13/0045G02B13/18G02B13/06G02B13/006G02B7/028
Inventor 乐宇明蔡雄宇兰宾利赵迪
Owner TIANJIN OFILM OPTO ELECTRONICS CO LTD
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