Imaging system lens group, image taking device and electronic device
A technology of imaging system and lens group, applied in the direction of optical components, optics, instruments, etc., can solve the problems of unfavorable photographic lens miniaturization, long system length, etc.
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no. 1 example
[0121] Please refer to figure 1 and figure 2 ,in figure 1 A schematic diagram of an imaging device according to a first embodiment of the present invention is shown, figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment. Depend on figure 1 It can be known that the image capturing device includes an imaging system lens group (not another number) and an electronic photosensitive element 180 . The imaging system lens group includes a first lens 110, a second lens 120, an aperture 100, a third lens 130, a fourth lens 140, an infrared filter element (IR-cut Filter) 150, Protective glass 160 and imaging surface 170 . Wherein, the electronic photosensitive element 180 is disposed on the imaging surface 170 . There are four lenses (110-140) in the mirror group of the imaging system.
[0122] The first lens 110 has negative refractive power and is made of plastic material. Its object-side surface 111 is concave at t...
no. 2 example
[0152] Please refer to image 3 and Figure 4 ,in image 3 A schematic diagram of an imaging device according to a second embodiment of the present invention is shown, Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Depend on image 3 It can be seen that the image capturing device includes an imaging system lens group (not another number) and an electronic photosensitive element 280 . The imaging system lens group includes the first lens 210, the second lens 220, the aperture 200, the third lens 230, the fourth lens 240, the infrared filter element 250, the protective glass 260 and the imaging surface in order from the object side to the image side. 270. Wherein, the electronic photosensitive element 280 is disposed on the imaging surface 270 . There are four lenses (210-240) in the mirror group of the imaging system.
[0153] The first lens 210 has negative refractive power and is made of plastic ma...
no. 3 example
[0165] Please refer to Figure 5 and Figure 6 ,in Figure 5 A schematic diagram of an imaging device according to a third embodiment of the present invention is shown, Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment. Depend on Figure 5 It can be seen that the image capturing device includes an imaging system mirror group (not another number) and an electronic photosensitive element 380 . The imaging system lens group includes the first lens 310, the second lens 320, the aperture 300, the third lens 330, the fourth lens 340, the infrared filter element 350, the protective glass 360 and the imaging surface in order from the object side to the image side. 370. Wherein, the electronic photosensitive element 380 is disposed on the imaging surface 370 . There are four lenses (310-340) in the mirror group of the imaging system.
[0166] The first lens 310 has negative refractive power and is made of plastic...
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