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Optical imaging camera lens

An optical imaging lens and imaging technology, which is applied in the field of optical imaging, can solve problems such as distortion, poor imaging quality, thickness, and material properties, and achieve the effects of expanding the aperture, increasing the field of view, and shortening the length of the system

Pending Publication Date: 2020-05-26
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing large-angle optical imaging lens is not only long and heavy, but also has poor imaging quality such as distortion and cannot meet market demand.
[0003] However, optical imaging lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens set with both imaging quality and miniaturization. The design process involves material properties, and production and assembly yields must also be taken into consideration. Practical problems on the production side

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 3 example

[0160] Surface concave-convex arrangement of the object side L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 facing the object side A1 and the image side L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2 facing the image side A2 of the third embodiment The configuration of the positive and negative refractive powers of each lens is generally similar to that of the first embodiment, but the third embodiment is different from the first embodiment in terms of relevant optical parameters such as the radius of curvature, lens thickness, aspheric coefficient, and back focus. About each optical property of each lens of the optical imaging lens 3 of the present embodiment and the value of each distance, please refer to Figure 16 . About TTL / AAG, TTL / (T4+T5+T6), TTL / (G23+BFL), AAG / T4, AAG / (G12+G23+G34), V2, HFOV / (ALT+BFL), (EFL+ G45) / (G23+T3), TL / (T4+T6), V6, (T3+G45+T5) / (G56+G67+T7), ALT15 / (T6+T7), EFL / (T2+T3) , (EFL+G56) / (G12+T2), (T5+G67+T7) / G12, ALT / T6, TL / (T6+G12+G23+G34), HFOV*ImgH / EFL and (E...

no. 4 example

[0164]The arrangement of surface bumps on the object side faces L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 facing the object side A1 and the image side faces L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2 facing the image side A2 of the fourth embodiment And the configuration of the positive and negative refractive powers of each lens except the third lens L3 is roughly similar to that of the first embodiment, except for the relevant optical parameters such as the radius of curvature, lens thickness, aspheric coefficient, and back focus of the fourth embodiment And the third lens L3 has a negative refractive power which is different from the first embodiment. About each optical characteristic of each lens of the optical imaging lens 4 of the present embodiment and the numerical value of each distance, please refer to Figure 20 . About TTL / AAG, TTL / (T4+T5+T6), TTL / (G23+BFL), AAG / T4, AAG / (G12+G23+G34), V2, HFOV / (ALT+BFL), (EFL+ G45) / (G23+T3), TL / (T4+T6), V6, (T3+G45+T5) / (G56+G67+T7),...

no. 5 example

[0168] Concave-convex arrangement on the object side L1A1, L2A1, L3A1, L4A1, L5A1, L6A1, L7A1 facing the object side A1 and the image side L1A2, L2A2, L3A2, L4A2, L5A2, L6A2, L7A2 facing the image side A2 of the fifth embodiment And the positive and negative diopter configurations of each lens except the third lens L3 are roughly similar to those of the first embodiment, except that the fifth embodiment has relevant optical parameters such as the radius of curvature, lens thickness, aspheric coefficient, back focus, etc. And the third lens L3 has a negative refractive power which is different from the first embodiment. About each optical property of each lens of the optical imaging lens 5 of the present embodiment and the numerical value of each distance, please refer to Figure 24 . About TTL / AAG, TTL / (T4+T5+T6), TTL / (G23+BFL), AAG / T4, AAG / (G12+G23+G34), V2, HFOV / (ALT+BFL), (EFL+ G45) / (G23+T3), TL / (T4+T6), V6, (T3+G45+T5) / (G56+G67+T7), ALT15 / (T6+T7), EFL / (T2+T3) , (EFL+G56...

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Abstract

The invention provides an optical imaging camera lens. The optical imaging camera lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and aseventh lens from an object side to an image side. By controlling the concave-convex curved surface arrangement of the lenses, under the condition of maintaining good optical performance, the systemlength is shortened, the field angle is increased, and the aperture is enlarged.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an optical imaging lens. Background technique [0002] Portable electronic products, such as mobile phones, cameras, tablet computers, personal digital assistants (Personal Digital Assistant, PDA), and other specifications are changing with each passing day, and their key components - optical imaging lenses are also more diversified, not only pursuing thinness and good imaging quality , and the pursuit of larger aperture and smaller focal length is conducive to matching lenses with different focal lengths. The existing large-angle optical imaging lens is not only long and heavy, but also has poor imaging quality such as distortion and cannot meet market demand. [0003] However, optical imaging lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens set with both imaging quality and miniaturization. The design process involv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0045G02B13/06G02B9/64G02B27/0025H04N23/55
Inventor 廖华滨林文斌廉嘉丽周欧
Owner GENIUS ELECTRONICS OPTICAL XIAMEN