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High-definition video conference lens

A lens and conference technology, which is applied in the field of high-definition video conferencing lenses, can solve the problems of long focusing response time, insufficient aperture, and large number of lenses, and achieve fast, stable and quiet focusing, low production cost, and high color reproduction. Effect

Active Publication Date: 2022-03-25
XIAMEN LEADING OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing video conferencing lens has a small working distance coverage, poor imaging quality, long focusing response time, and prone to out-of-focus, shaking and abnormal noise during the focusing process. The service life of the lens is short, which greatly affects the quality of video communication. and effects; and it can support large frame size with low resolution, high resolution frame size is small, video image sharpness is not good enough, noise is large, dynamic response range is small; aperture aperture is not large enough, and the relative illumination of the edge is not enough High, most of them are spherical lenses, including a large number of lenses, resulting in a long overall length, large volume, heavy weight, and high price. At the same time, its low transmittance leads to dim video images and insufficient transparency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] refer tofigure 1 As shown, the present invention discloses a high-definition video conferencing lens, including a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a diaphragm that are sequentially arranged along an optical axis from the object side to the image side 10. The fifth lens 5, the sixth lens 6, the seventh lens 7, the eighth lens 8, and the ninth lens 9, the first lens 1 to the ninth lens 9 each include a lens facing the object side and allowing the imaging light to pass through The object side and an image side facing the image side and allowing the imaging light to pass through;

[0102] The first lens 1 has a negative diopter, and the object side of the first lens 1 is convex, and the image side is concave;

[0103] The second lens 2 has a negative diopter, and the object side of the second lens 2 is convex, and the image side is concave;

[0104] The third lens 3 has a negative diopter, and the object side of the third lens 3 is convex...

Embodiment 2

[0142] Such as Figure 12 As shown, compared with Embodiment 1, this embodiment mainly lies in that the optical parameters such as the radius of curvature of each lens surface and lens thickness are different.

[0143] In this embodiment, the focal length of the lens is f=4.44mm.

[0144] The detailed optical data of this specific embodiment are shown in Table 2-1.

[0145] Detailed optical data of Table 2-1 Example 2

[0146]

[0147]

[0148] In this embodiment, the values ​​of the variable parameters in Table 2-1 at different working distances are shown in Table 2-2.

[0149] The detailed parameter data of table 2-2 embodiment 2

[0150] parameter 300mm 2000mm Infinity D1 3.413 3.312 3.298 D2 2.838 2.939 2.953

[0151] In this embodiment, the first lens 1, the third lens 3, the fourth lens 4, the fifth lens 5, and the sixth lens 6 are all glass spherical lenses, and the second lens 2, the seventh lens 7, the sixth lens The eight ...

Embodiment 3

[0159] Such as Figure 23 As shown, compared with Embodiment 1, this embodiment mainly lies in that the optical parameters such as the radius of curvature of each lens surface and lens thickness are different.

[0160] In this embodiment, the focal length of the lens is f=4.44mm.

[0161] The detailed optical data of this specific embodiment are shown in Table 3-1.

[0162] Detailed optical data of Table 3-1 Example 3

[0163]

[0164] In this embodiment, the values ​​of the variable parameters in Table 3-1 at different working distances are shown in Table 3-2.

[0165] The detailed parameter data of table 3-2 embodiment 3

[0166] parameter 300mm 2000mm Infinity D1 3.415 3.313 3.297 D2 2.843 2.944 2.961

[0167] In this embodiment, the first lens 1, the third lens 3, the fourth lens 4, the fifth lens 5, and the sixth lens 6 are all glass spherical lenses, and the second lens 2, the seventh lens 7, the sixth lens The eight lenses 8 and...

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Abstract

The invention discloses a high-definition video conference lens which comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens which are sequentially arranged along an optical axis from an object side to an image side, the first lens has negative diopter, the second lens has negative diopter, and the third lens has negative diopter. The third lens has negative diopter, the fourth lens has positive diopter, the fifth lens has positive diopter, the sixth lens has negative diopter, the seventh lens has negative diopter, the eighth lens has positive diopter, and the ninth lens has negative diopter. The high-definition video conference lens is small in size, light in weight, rapid, stable and quiet in focusing, and capable of continuously and clearly imaging in a range from 0.3 m to infinity; through the glass-plastic mixed design and the aspheric surface design, the large aperture, large aperture, high resolution, high color reducibility and small distortion are realized, the high definition requirement is met, and the cost performance is high.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to a high-definition video conferencing lens. Background technique [0002] With the development of wireless transmission technology, long-distance wireless transmission of high-pixel images becomes possible. Modern people use the Internet to make communication unlimited, from letter communication to voice transmission, and now to video communication. Video communication is not only suitable for ordinary users' chats, but also for long-distance multi-person meetings. It even has considerable practicability for social security and medical treatment. [0003] The existing video conferencing lens has a small working distance coverage, poor imaging quality, long focusing response time, and is prone to out-of-focus, shaking and abnormal noise during the focusing process. The service life of the lens is short, which greatly affects the quality of video communication. and effects;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045G02B13/009
Inventor 曹来书苏炳坤吴锦昇徐金龙
Owner XIAMEN LEADING OPTICS