Optical Image Capturing System
An optical imaging system and imaging surface technology, applied in optics, optical components, instruments, etc., can solve the problems of increased imaging distortion rate, deterioration of peripheral imaging quality, manufacturing difficulty, etc., and achieve aberration correction, good imaging quality, Maintain the effect of miniaturization
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[0062] The focal length f of all lenses with positive refractive power in the optical imaging system p The sum is ΣPP, the focal length f of all lenses with negative refractive power n The sum is ΣNP, an embodiment of an optical imaging system provided by the present invention, which satisfies the following conditions: 0<ΣPP≤200; and f1 / ΣPP≤0.85. Preferably, the optical imaging system satisfies the following conditions: 0<ΣPP≤150; and 0.01≤f1 / ΣPP≤0.7, which helps to control the focusing ability of the optical imaging system, and properly distributes the positive refractive power of the system to suppress significant aberrations Produced prematurely.
[0063] The first lens can have positive refractive power, and its object side can be convex. By properly adjusting the strength of the positive refractive power of the first lens, it is beneficial to shorten the total length of the optical imaging system.
[0064] The second lens may have a negative refractive power for correc...
no. 1 example
[0100] Such as Figure 1 to Figure 3 shown, where figure 1 In order to find a schematic diagram of an optical imaging system provided by the first embodiment of the present invention, figure 2 From left to right in the figure are the spherical aberration, astigmatism and optical distortion curves of the optical imaging system of the first embodiment. image 3 It is the lateral aberration diagram of the meridian plane light fan and the sagittal plane light fan of the optical imaging system of the first embodiment, the longest working wavelength and the shortest working wavelength passing through the edge of the aperture at the 0.7 field of view. Depend on figure 1 It can be seen that the optical imaging system 10 includes sequentially from the object side to the image side: an aperture 100, a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, an infrared filter 170, an imaging surface 180, and an image sensing assembly 190 .
[0101] The first lens 110...
no. 2 example
[0188] Such as Figure 4 to Figure 6 shown, where Figure 4 It represents a schematic diagram of an optical imaging system provided by the second embodiment of the present invention, Figure 5 From left to right in the figure are the spherical aberration, astigmatism and optical distortion curves of the optical imaging system provided by the second embodiment. Figure 6 It is the lateral aberration diagram of the meridian plane light fan and sagittal plane light fan of the optical imaging system of the second embodiment, the longest working wavelength and the shortest working wavelength passing through the edge of the aperture at the 0.7 field of view. Depend on Figure 4 It can be seen that the optical imaging system 20 sequentially includes a first lens 210, an aperture 200, a second lens 220, a third lens 230, a fourth lens 240, an infrared filter 270, an imaging surface 280, and an image sensor from the object side to the image side. Measuring component 290.
[0189] T...
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