Optical image capturing system
An optical imaging system, optical axis technology, applied in optics, optical components, instruments, etc., can solve the problems of small design freedom and increase the design difficulty of optical imaging system, and achieve optimized optical parameters, miniaturized imaging quality, and good imaging. quality effect
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Embodiment 1
[0068] Refer to the following Figure 1 to Figure 2C An optical imaging system according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging system according to Embodiment 1 of the present application is shown.
[0069] Such as figure 1 As shown, the optical imaging system includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, The seventh lens E7, the filter E8 and the imaging surface S17.
[0070] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is concave, and its image side S4 is concave. The third lens E3 has negative refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has negative ref...
Embodiment 2
[0084] Refer to the following Figure 3 to Figure 4C An optical imaging system according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural diagram of an optical imaging system according to Embodiment 2 of the present application is shown.
[0085] Such as image 3 As shown, the optical imaging system includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, The seventh lens E7, the filter E8 and the imaging surface S17.
[0086] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third l...
Embodiment 3
[0098] Refer to the following Figure 5 to Figure 6C An optical imaging system according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging system according to Embodiment 3 of the present application is shown.
[0099] Such as Figure 5 As shown, the optical imaging system includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, The seventh lens E7, the filter E8 and the imaging surface S17.
[0100] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has negative re...
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