Optical lens group for capturing image
An optical mirror and lens technology, which is applied in the field of miniaturized imaging optical lens groups, can solve the problems of difficulty in manufacturing, difficult to shorten the total optical length, difficult glass lens manufacturing process, etc., and achieves the effect of maintaining thinness and shortening the total optical length.
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no. 1 example
[0114] Please refer to the first embodiment of the present invention figure 1 , for the aberration curve of the first embodiment, please refer to figure 2 . The imaging optical lens group of the first embodiment is mainly composed of four lenses, which sequentially include from the object side to the image side:
[0115] A first lens 110 with positive refractive power, its object-side surface 111 and image-side surface 112 are both convex, and its material is plastic, and the object-side surface 111 and image-side surface 112 of the first lens 110 are both aspherical;
[0116] A second lens 120 with negative refractive power, its object-side surface 121 is concave and image-side surface 122 is convex, and its material is plastic. The object-side surface 121 and image-side surface 122 of the second lens 120 are both aspherical ;
[0117] A third lens 130 with negative refractive power, its object-side surface 131 is concave and image-side surface 132 is convex, and its mate...
no. 2 example
[0144] Please refer to the second embodiment of the present invention image 3 , for the aberration curve of the second embodiment, please refer to Figure 4 . The imaging optical lens group of the second embodiment is mainly composed of four lenses, which sequentially include from the object side to the image side:
[0145] A first lens 310 with positive refractive power, its object-side surface 311 and image-side surface 312 are both convex, and its material is plastic, and the object-side surface 311 and image-side surface 312 of the first lens 310 are both aspherical;
[0146] A second lens 320 with negative refractive power, its object-side surface 321 and image-side surface 322 are both concave, and its material is plastic, and the object-side surface 321 and image-side surface 322 of the second lens 320 are both aspherical;
[0147] A third lens 330 with negative refractive power, its object-side surface 331 is concave and image-side surface 332 is convex, its materia...
no. 3 example
[0168] Please refer to the third embodiment of the present invention Figure 5 , for the aberration curve of the third embodiment, please refer to Figure 6 . The imaging optical lens group of the third embodiment is mainly composed of four lenses, which sequentially include from the object side to the image side:
[0169] A first lens 510 with positive refractive power, its object-side surface 511 and image-side surface 512 are both convex, and its material is plastic, and the object-side surface 511 and image-side surface 512 of the first lens 510 are both aspherical;
[0170] A second lens 520 with negative refractive power, its object-side surface 521 and image-side surface 522 are both concave, and its material is plastic, and the object-side surface 521 and image-side surface 522 of the second lens 520 are both aspherical;
[0171] A third lens 530 with negative refractive power, its object-side surface 531 is concave and image-side surface 532 is convex, and its mater...
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