Optical photographic system
A camera system and optical technology, applied in the field of miniaturized optical camera system, can solve problems such as manufacturing difficulties, lack of system freedom, and difficult glass lens manufacturing process, and achieve good imaging quality, large viewing angle, and shortened overall length.
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no. 1 example
[0099] Please refer to the first embodiment of the present invention Figure 1A , for the aberration curve of the first embodiment, please refer to Figure 1B . The optical imaging system of the first embodiment is mainly composed of four lenses, which include sequentially from the object side to the image side:
[0100] A first lens 110 with negative refractive power, its object side surface 111 is convex and image side surface 112 is concave, its material is plastic, the object side surface 111 and image side surface 112 of the first lens 110 are both aspherical , and both the object-side surface 111 and the image-side surface 112 of the first lens 110 are provided with at least one inflection point;
[0101] A second lens 120 with positive refractive power, its object-side surface 121 and image-side surface 122 are convex, its material is plastic, the object-side surface 121 and image-side surface 122 of the second lens 120 are both aspherical ;
[0102] A third lens 130...
no. 2 example
[0129]Please refer to the second embodiment of the present invention Figure 2A , for the aberration curve of the second embodiment, please refer to Figure 2B . The optical imaging system of the second embodiment is mainly composed of four lenses, which include sequentially from the object side to the image side:
[0130] A first lens 210 with negative refractive power, its object side surface 211 is convex and image side surface 212 is concave, its material is plastic, the object side surface 211 and image side surface 212 of the first lens 210 are both aspherical , and both the object-side surface 211 and the image-side surface 212 of the first lens 210 are provided with at least one inflection point;
[0131] A second lens 220 with positive refractive power, its object-side surface 221 is concave and image-side surface 222 is convex, its material is plastic, the object-side surface 221 and image-side surface 222 of the second lens 220 are both aspherical ;
[0132] A t...
no. 3 example
[0153] Please refer to the third embodiment of the present invention Figure 3A , for the aberration curve of the third embodiment, please refer to Figure 3B . The optical imaging system of the third embodiment is mainly composed of four lenses, which sequentially include from the object side to the image side:
[0154] A first lens 310 with negative refractive power, its object side surface 311 is convex and image side surface 312 is concave, its material is plastic, the object side surface 311 and image side surface 312 of the first lens 310 are both aspherical , and both the object-side surface 311 and the image-side surface 312 of the first lens 310 are provided with at least one inflection point;
[0155] A second lens 320 with positive refractive power, its object-side surface 321 and image-side surface 322 are convex, its material is plastic, and the object-side surface 321 and image-side surface 322 of the second lens 320 are both aspherical ;
[0156] A third len...
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