TWI784676B - Plastic light-folding element, imaging lens assembly module and electronic device - Google Patents

Abstract

A plastic light-folding element includes an incident surface, an exit surface, a reflective surface and a reflective optical layer. The incident surface is configured to lead an imaging light enter the plastic light-folding element. The exit surface is configured to lead the imaging light exit the plastic light-folding element. The reflective surface is configured to fold the imaging light. The reflective optical layer is disposed on a surface of the reflective surface, and includes an Ag layer, a bottom layer optical film and a top layer optical film. The bottom layer optical film is directly contacted with the Ag layer, and the bottom layer optical film is closer to the reflective surface of the plastic light-folding element than the Ag layer to the reflective surface of the plastic light-folding element. A reflective index of the top layer optical film is less than a reflective index of the bottom layer optical film, the top layer optical film is not directly contacted with the Ag layer, and the top layer optical film is farther from the reflective surface of the plastic light-folding element than the Ag layer from the reflective surface of the plastic light-folding element. Therefore, it is favorable for enhancing the imaging restoration.

Description

Plastic optical turning components, imaging lens modules and electronic devices

The disclosure relates to a plastic optical turning element and an imaging lens module, and in particular to a plastic optical turning element and an imaging lens module applied to a portable electronic device.

In recent years, portable electronic devices have developed rapidly, such as smart electronic devices, tablet computers, etc., which have flooded the lives of modern people, and the imaging lens modules and plastic optical transition elements loaded on portable electronic devices are also Then it flourished. However, with the advancement of technology, users have higher and higher requirements for the quality of plastic optical transition components. Therefore, the development of a plastic optical transition element that can increase the degree of image restoration has become an important and urgent problem in the industry.

The present disclosure provides a plastic optical turning element, an imaging lens module and an electronic device, which can help improve the image restoration degree of imaging light by reflecting the optical film layer.

According to an embodiment of the present disclosure, a plastic optical turning element is provided, which includes a light incident surface, a light exit surface, a reflective surface and a reflective optical film layer. The light incident surface is used for making an imaging light incident into the plastic optical turning element. The light exit surface is used to make the imaging light exit the plastic optical turning element. The reflective surface is used to deflect imaging light. The reflective optical film layer is arranged on one surface of the reflective surface, and includes a silver atomic layer, a bottom optical film and a top optical film. The silver atomic layer is used to reflect the imaging light entering the light incident surface to the light exit surface. The bottom optical film is in direct contact with the silver atomic layer, and the bottom optical film is closer to the reflective surface of the plastic optical turning element than the silver atomic layer. The refractive index of the top optical film is lower than that of the bottom optical film, the top optical film is not in direct contact with the silver atomic layer, and the top optical film is farther away from the reflective surface of the plastic optical turning element than the silver atomic layer. The refractive index of the bottom optical film is Nb, the thickness of the bottom optical film is db, the refractive index of the top optical film is Nt, the thickness of the top optical film is dt, and the thickness of the silver atomic layer is dAg, which meets the following conditions: 1.4＜Nt < Nb < 2.1; 1.6 < Nb < 2.1; 1.4 < Nt < 1.58; 0.05 < db/dAg < 1.2; and 0.2 < dAg/dt < 3.5.

According to the above-mentioned embodiment, the plastic optical turning element may further include a connection surface and an injection mark structure, wherein the connection surface connects the light incident surface, the light output surface and the reflection surface, and the injection mark structure is disposed on the connection surface.

According to the plastic optical turning element of the embodiment described in the preceding paragraph, the underlying optical film may be a metal oxide layer.

The plastic optical turning element according to the embodiment described in the preceding paragraph may further include at least one intermediate interlayer, wherein the intermediate interlayer is disposed between the top optical film and the silver atomic layer.

According to the plastic optical turning element described in the preceding paragraph, the intermediate interlayer may include a metal layer, and the metal layer does not include silver atoms.

According to the plastic optical turning element described in the preceding paragraph, wherein the thickness of the silver atomic layer is dAg, which can satisfy the following condition: 75 nm < dAg < 200 nm.

According to the plastic optical turning element of the embodiment described in the preceding paragraph, the underlying optical film can be in direct contact with the reflective surface of the plastic optical turning element.

According to the plastic optical turning element of the embodiment described in the preceding paragraph, wherein the thickness of the bottom optical film is db, and the thickness of the top optical film is dt, which can satisfy the following conditions: 0.05 < db/dt < 1.1.

According to the plastic optical turning element of the embodiment described in the preceding paragraph, the reflectance of the reflective optical film layer has a minimum reflectance of R5459 at a wavelength of 540 nm to 590 nm, which can meet the following conditions: 94.0% < R5459 < 99.99%.

According to an embodiment of the present disclosure, an imaging lens module is provided, which includes the plastic optical turning element and an optical imaging lens group as in the foregoing embodiment, wherein the plastic optical turning element is arranged on one of the object side and the image side of the optical imaging lens group side.

According to an embodiment of the present disclosure, an electronic device is provided, including the imaging lens module of the aforementioned embodiment and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens module.

The disclosure provides a plastic optical turning element, which includes a light incident surface, a light exit surface, a reflective surface and a reflective optical film layer. The light incident surface is used for making an imaging light incident into the plastic optical turning element. The light exit surface is used to make the imaging light exit the plastic optical turning element. The reflective surface is used to deflect imaging light. The reflective optical film layer is arranged on one surface of the reflective surface, and includes a silver atomic layer, a bottom optical film and a top optical film. The silver atomic layer is used to reflect the imaging light entering the light incident surface to the light exit surface. The bottom optical film is in direct contact with the silver atomic layer, and the bottom optical film is closer to the reflective surface of the plastic optical turning element than the silver atomic layer. The refractive index of the top optical film is lower than that of the bottom optical film, the top optical film is not in direct contact with the silver atomic layer, and the top optical film is farther away from the reflective surface of the plastic optical turning element than the silver atomic layer. The refractive index of the bottom optical film is Nb, the thickness of the bottom optical film is db, the refractive index of the top optical film is Nt, the thickness of the top optical film is dt, and the thickness of the silver atomic layer is dAg, which meets the following conditions: 1.4＜Nt < Nb < 2.1; 1.6 < Nb < 2.1; 1.4 < Nt < 1.58; 0.05 < db/dAg < 1.2; and 0.2 < dAg/dt < 3.5.

Specifically, the plastic optical turning element of this case is an optical element with a silver atomic layer on the reflective surface of the plastic material to bend the imaging light. The physical adhesion between the silver atomic layer and the reflective surface of the plastic material is increased by the underlying optical film, and the underlying optical film can maintain a high refractive index to reduce unnecessary reflection inside the plastic optical turning element and increase the imaging light Image restoration.

The plastic optical turning element may further include a connection surface and a injection mark structure, wherein the connection surface connects the light incident surface, the light output surface and the reflection surface, and the injection mark structure is arranged on the connection surface. By setting the injection mark structure on the connection surface, the injection molding efficiency of injection molding can be increased, and by simultaneously forming the light incident surface, light exit surface and reflective surface, the optical flatness and roundness of the light incident surface, light exit surface and reflective surface can be improved. Symmetrical consistency is better.

The underlying optical film can be a metal oxide layer. Specifically, because the metal oxide layer contains metal materials, the metal oxide layer can have a better bonding force with the silver atomic layer and with the plastic material at the same time, so the underlying optical film of the metal oxide layer is better than the non-metallic film. The underlying optical film of oxide has better bonding force to metal materials. In other words, the metal oxide layer can allow the silver atom layer to have better adhesion on the plastic material. It must be noted that the general adhesion test method is to use adhesive tape to cover the surface of the optical film layer, and check the surface condition of the optical film layer after tearing off the tape to determine the quality of the adhesion. Repeat the number of times the cover is attached and the tape is removed to achieve more stringent test conditions, but it is not limited thereto. Specifically, the material of the bottom optical film may be Al ₂ O ₃ , and the material of the top optical film may be non-metal oxide, such as SiO ₂ .

The plastic optical turning element may further include at least one interlayer, wherein the interlayer is disposed between the top optical film and the silver atomic layer. The silver atomic layer can be protected through the intermediate interlayer, so that the silver atomic layer is not easily oxidized, and the ability of the silver atomic layer to resist acid and alkali corrosion can be improved, but the effect of the intermediate interlayer is not limited to the above-mentioned effects.

The interlayer may include a metal layer, and the metal layer does not include silver atoms. Specifically, the material of the metal layer may be Ti, Cr, Ni, etc., but not limited thereto. The metal layer that does not contain silver atoms can increase the surface stability of the silver atomic layer, making it less susceptible to external environmental influences, and has a better combination with the silver atomic layer.

The underlying optical film can be in direct contact with the reflective surface of the plastic optical turning element. Thereby, the degree of optical reflection of the silver atomic layer can be increased to maintain a high optical reflectivity. Specifically, the reflection degree of silver atoms is better than that of aluminum atoms, and the provision of the underlying optical film can make the reflection effect of the silver atom layer less susceptible to degradation due to the influence of plastic materials.

The thickness of the silver atomic layer is dAg, which can satisfy the following conditions: 75 nm < dAg < 200 nm. Through the appropriate thickness of the silver atomic layer, the imaging light reflection effect is better, and the light wavelength reflection degree of different imaging light bands is more consistent. In this way, the degree of restoration of the imaging light can be better, and the reflected image can be made more detailed, realistic and soft. It must be noted that an overly thick silver atomic layer tends to be uneven in thickness, which may distort the reflected image.

The thickness of the bottom optical film is db, and the thickness of the top optical film is dt, which can satisfy the following conditions: 0.05 < db/dt < 1.1. Through the thinner underlying optical film, the optical characteristics of the plastic optical turning element can be improved. Specifically, the optical characteristic may be the color rendering of the image light, the restoration degree of the image light, or the details of the image light, but is not limited thereto.

The reflectance of the reflective optical film layer has a minimum reflectance of R5459 between the wavelength of 540 nm and 590 nm, which can meet the following conditions: 94.0% < R5459 < 99.99%. Through the high reflectivity in the visible light band, it can faithfully present the authenticity of the image, reduce the additional loss of the original light caused by the plastic optical turning element, and improve the imaging quality.

All the technical features of the above-mentioned plastic optical turning elements in the disclosure can be combined and configured to achieve corresponding functions.

The present disclosure provides an imaging lens module, which includes the aforementioned plastic optical turning element and an optical imaging lens group, wherein the plastic optical turning element is disposed on one of the object side and the image side of the optical imaging lens group. Specifically, the configuration of the plastic optical turning element can make the imaging lens module suitable for telephoto application (that is, the full viewing angle is less than 40 degrees), so as to effectively reduce the volume of the imaging lens module.

The present disclosure provides an electronic device including the aforementioned imaging lens module and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens module.

According to the above-mentioned implementation manners, specific embodiments are proposed below and described in detail with reference to the drawings.

<First embodiment>

Please refer to FIG. 1A to FIG. 1D, wherein FIG. 1A shows a perspective view of the electronic device 10 according to the first embodiment of the disclosure, and FIG. 1B shows an exploded view of the electronic device 10 according to the first embodiment of FIG. 1A 1C shows another exploded view of the electronic device 10 according to the first embodiment of FIG. 1A , and FIG. 1D shows a schematic diagram of the electronic device 10 according to the first embodiment of FIG. 1A . It can be seen from FIG. 1A to FIG. 1D that the electronic device 10 includes an imaging lens module (not shown in the figure) and an electronic photosensitive element 180, wherein the electronic photosensitive element 180 is arranged on an imaging surface of the imaging lens module (not shown in the figure). ).

Furthermore, the electronic device 10 further includes a casing 150, a first driving mechanism (not shown in the figure), a second driving mechanism (not shown in the figure), a carrier 160 and a flexible circuit board 170, wherein the first driving The mechanism includes a first driving member 131, a first magnet 132, a first rolling element 133, a magnetic member 134 and a first coil 135, and the second driving mechanism includes a second driving member 141, a second magnet 142, a second The rolling element 143 , the elastic element 144 and the second coil 145 . Specifically, the first driving mechanism and the second driving mechanism are used to drive the imaging lens module, the imaging lens module is arranged in the carrier 160, the flexible circuit board 170 is arranged on one side of the carrier 160, and the housing 150 is arranged on the carrier 160 the other side of

The imaging lens module includes a plastic optical turning element 110 and an optical imaging lens group (not shown), wherein the plastic optical turning element 110 is disposed on the object side of the optical imaging lens group. Specifically, the configuration of the plastic optical turning element 110 can make the imaging lens module suitable for telephoto application (that is, the full viewing angle is less than 40 degrees), so as to effectively reduce the volume of the imaging lens module.

It can be seen from Figure 1D that the optical imaging lens group includes lenses 121a, 121b, 121c, 121d and a fixing ring 123 in sequence from the object side to the image side, and the lenses 121a, 121b, 121c are arranged in a lens barrel 122 of the optical imaging lens group , and the lens 121d and the fixing ring 123 are disposed in the first driving member 131, wherein the number, structure, surface shape and other optical characteristics of the lens can be configured according to different imaging requirements, and the present invention is not limited thereto.

Please refer to FIG. 1E , which shows a schematic diagram of the plastic optical turning element 110 according to the first embodiment of FIG. 1A . It can be seen from FIG. 1A to FIG. 1E that the plastic optical turning element 110 includes a light incident surface 111 , a light output surface 112 , a reflective surface 113 and a reflective optical film layer 114 . In detail, the light incident surface 111 is used to make an imaging light (not shown) enter the plastic optical turning element 110, the light output surface 112 is used to make the imaging light exit the plastic optical turning element 110, and the reflective surface 113 is used to bend the imaging light. And the reflective optical film layer 114 is disposed on a surface of the reflective surface 113 . In the first embodiment, the plastic optical turning element 110 can be a plastic lens, and the light incident surface 111 has an optical curved surface, but it is not limited thereto.

The reflective optical film layer 114 includes a silver atomic layer 114a, a bottom optical film 114b and a top optical film 114c, wherein the silver atomic layer 114a is used to reflect the imaging light entering the light incident surface 111 to the light exit surface 112; the bottom optical film 114b It is in direct contact with the silver atomic layer 114a, and the bottom optical film 114b is closer to the reflective surface 113 of the plastic optical turning element 110 than the silver atomic layer 114a; the refractive index of the top optical film 114c is lower than that of the bottom optical film 114b, and the top optical film 114c It is not in direct contact with the silver atomic layer 114a, and the top optical film 114c is farther away from the reflective surface 113 of the plastic optical turning element 110 than the silver atomic layer 114a.

Specifically, the plastic optical turning element 110 is an optical element with a silver atomic layer 114 a on the reflective surface 113 made of plastic to bend the imaging light. The physical adhesion between the silver atomic layer 114a and the reflective surface 113 made of plastic is increased by the underlying optical film 114b, and the underlying optical film 114b can maintain a high refractive index to reduce unnecessary reflection inside the plastic optical turning element 110. Increase the image reproduction of imaging light.

From Figure 1B and Figure 1E, it can be seen that the plastic optical turning element 110 further includes a connection surface 115, a injection mark structure 116 and at least one interlayer 117, wherein the connection surface 115 connects the light incident surface 111, the light exit surface 112 and the reflection On the surface 113 , the injection trace structure 116 is disposed on the connecting surface 115 , and the interlayer 117 is disposed between the top optical film 114 c and the silver atomic layer 114 a. By setting the injection mark structure 116 on the connection surface 115, the injection molding efficiency of injection molding can be increased, and by simultaneously molding the light incident surface 111, the light exit surface 112 and the reflection surface 113, the light entrance surface 111, the light exit surface 112 and the reflection surface 113 can be made The optical flatness and circular symmetry of the surface 113 are consistent. Furthermore, the silver atomic layer 114a can be protected through the intermediate interlayer 117, so that the silver atomic layer 114a is not easily oxidized, and the ability of the silver atomic layer 114a to resist acid and alkali corrosion can be improved, but the effect of the intermediate interlayer 117 is not limited to the above-mentioned effect . In the first embodiment, the number of connecting surfaces is two, the number of injection trace structures is one, and the number of intermediate interlayers 117 is two.

It must be noted that the number of intermediate interlayers 117 drawn in FIG. 1E is one, but the actual number of intermediate interlayers 117 may be two or more, and is not limited thereto.

The underlying optical film 114b is a metal oxide layer. Specifically, because the metal oxide layer contains metal material, the metal oxide layer can have better bonding force with the silver atomic layer 114a and with the plastic material at the same time, so the underlying optical film 114b of the metal oxide layer is relatively strong. The underlying optical film of the non-metal oxide layer has better bonding force to metal materials. In other words, the metal oxide layer can make the silver atomic layer 114a have better adhesion on the plastic material. It must be noted that the general adhesion test method is to use adhesive tape to cover the surface of the optical film layer, and check the surface condition of the optical film layer after tearing off the tape to determine the quality of the adhesion. Repeat the number of times the cover is attached and the tape is removed to achieve more stringent test conditions, but it is not limited thereto. In the first embodiment, the material of the bottom optical film 114b is Al ₂ O ₃ , and the material of the top optical film 114c is SiO ₂ .

The middle interlayer 117 includes a metal layer, and the metal layer does not include silver atoms. The metal layer that does not contain silver atoms can increase the surface stability of the silver atomic layer, making it less susceptible to external environmental influences, and has a better combination with the silver atomic layer. Specifically, the material of the metal layer may be Ti, Cr, Ni, etc., but not limited thereto.

The bottom optical film 114b is in direct contact with the reflective surface 113 of the plastic optical turning element 110 . In this way, the optical reflection degree of the silver atomic layer 114a can be increased to maintain a high optical reflectivity. Specifically, the reflection degree of silver atoms is better than that of aluminum atoms, and the provision of the underlying optical film 114b can make the reflection effect of the silver atom layer 114a less likely to be affected by the plastic material.

The refractive index of bottom optical film 114b is Nb, and the thickness of bottom optical film 114b is db, and the refractive index of top layer optical film 114c is Nt, and the thickness of top layer optical film 114c is dt, and the refractive index of silver atomic layer 114a is NAg, and silver atom The thickness of layer 114a is dAg, which parameter satisfies the conditions of Table 1 below. Table 1, the first embodiment Nb 1.6726 db (nm) 20 Nt 1.4618 dt (nm) 65 NAg 0.051 dAg (nm) 100

It must be noted that the refractive index of air is 1, the refractive index of the plastic optical turning element 110 is 1.64678, and the thickness of each interlayer 117 is smaller than the thickness of the silver atomic layer 114a.

Please refer to FIG. 1F and Table 2, wherein FIG. 1F shows a schematic diagram of the reflectance results of the first embodiment according to FIG. 1A , and Table 2 shows the reflectance results of the first embodiment. Table II wavelength(nm) Reflectivity(%) wavelength(nm) Reflectivity(%) wavelength(nm) Reflectivity(%) 380 92.88095 604 97.62378 828 98.19644 381 92.86194 605 97.62574 829 98.1974 382 92.84323 606 97.62776 830 98.19837 383 92.82481 607 97.62964 831 98.19935 384 92.80669 608 97.63166 832 98.20032 385 92.78886 609 97.63365 833 98.20129 386 92.77169 610 97.63568 834 98.20227 387 92.75479 611 97.6377 835 98.20324 388 92.73817 612 97.63972 836 98.20422 389 92.72181 613 97.64172 837 98.2052 390 92.70572 614 97.64372 838 98.20618 391 92.6899 615 97.64581 839 98.20716 392 92.67434 616 97.64788 840 98.20815 393 92.65904 617 97.64988 841 98.20913 394 92.64399 618 97.65198 842 98.21012 395 92.6292 619 97.65404 843 98.21111 396 92.61466 620 97.65608 844 98.21209 397 92.60037 621 97.6582 845 98.21308 398 92.58631 622 97.66026 846 98.21408 399 92.57251 623 97.66242 847 98.21507 400 92.55895 624 97.66447 848 98.21606 401 92.6218 625 97.6665 849 98.21706 402 92.71196 626 97.66864 850 98.21805 403 92.79902 627 97.67075 851 98.22043 404 92.86623 628 97.67282 852 98.22281 405 92.92973 629 97.67486 853 98.22518 406 93.01429 630 97.67703 854 98.22754 407 93.08696 631 97.67912 855 98.2299 408 93.15476 632 97.68129 856 98.23225 409 93.22368 633 97.68341 857 98.2346 410 93.29611 634 97.68553 858 98.23694 411 93.37138 635 97.68773 859 98.23927 412 93.43712 636 97.6898 860 98.2416 413 93.51066 637 97.69189 861 98.24393 414 93.57662 638 97.69413 862 98.24624 415 93.64599 639 97.69624 863 98.24855 416 93.71353 640 97.69838 864 98.25085 417 93.78017 641 97.70052 865 98.25315 418 93.84982 642 97.70271 866 98.25545 419 93.91608 643 97.70492 867 98.25773 420 93.98196 644 97.70698 868 98.26001 421 94.05391 645 97.70915 869 98.26229 422 94.11569 646 97.71131 870 98.26456 423 94.17811 647 97.71355 871 98.26683 424 94.24311 648 97.71569 872 98.26908 425 94.30622 649 97.71783 873 98.27134 426 94.37049 650 97.7201 874 98.27359 427 94.43313 651 97.7248 875 98.27583 428 94.49608 652 97.72953 876 98.27807 429 94.55893 653 97.73418 877 98.2803 430 94.61788 654 97.73895 878 98.28252 431 94.68102 655 97.74347 879 98.28474 432 94.74079 656 97.74824 880 98.28696 433 94.79897 657 97.75285 881 98.28917 434 94.86155 658 97.75745 882 98.29137 435 94.91983 659 97.76207 883 98.29357 436 94.97828 660 97.76665 884 98.29577 437 95.03615 661 97.77129 885 98.29796 438 95.09356 662 97.77568 886 98.30014 439 95.15109 663 97.78039 887 98.30232 440 95.20763 664 97.78488 888 98.30449 441 95.26249 665 97.78938 889 98.30666 442 95.32109 666 97.79385 890 98.30882 443 95.37639 667 97.79835 891 98.31098 444 95.43024 668 97.80278 892 98.31313 445 95.48506 669 97.80724 893 98.31527 446 95.54042 670 97.81164 894 98.31742 447 95.59198 671 97.81608 895 98.31955 448 95.64536 672 97.82047 896 98.32168 449 95.69852 673 97.82499 897 98.32381 450 95.75127 674 97.82919 898 98.32593 451 95.77848 675 97.83356 899 98.32805 452 95.80676 676 97.83794 900 98.33016 453 95.83338 677 97.84223 901 98.33195 454 95.86246 678 97.84665 902 98.33374 455 95.88948 679 97.8509 903 98.33552 456 95.91631 680 97.85517 904 98.3373 457 95.94362 681 97.85935 905 98.33908 458 95.96984 682 97.86372 906 98.34085 459 95.9968 683 97.86791 907 98.34262 460 96.02327 684 97.87209 908 98.34438 461 96.04878 685 97.87644 909 98.34614 462 96.07622 686 97.88042 910 98.3479 463 96.10215 687 97.88473 911 98.34965 464 96.12655 688 97.88885 912 98.35141 465 96.15248 689 97.89285 913 98.35315 466 96.17751 690 97.89718 914 98.3549 467 96.20257 691 97.90112 915 98.35664 468 96.22835 692 97.90534 916 98.35837 469 96.25341 693 97.90941 917 98.36011 470 96.27808 694 97.91344 918 98.36184 471 96.30277 695 97.91744 919 98.36356 472 96.32669 696 97.92157 920 98.36529 473 96.35085 697 97.92559 921 98.36701 474 96.37608 698 97.92974 922 98.36872 475 96.3987 699 97.93355 923 98.37043 476 96.4226 700 97.9375 924 98.37214 477 96.44644 701 97.94164 925 98.37385 478 96.46936 702 97.94578 926 98.37555 479 96.4925 703 97.94993 927 98.37725 480 96.51593 704 97.95395 928 98.37894 481 96.53862 705 97.95823 929 98.38063 482 96.56162 706 97.96229 930 98.38232 483 96.58405 707 97.96615 931 98.38401 484 96.60665 708 97.97025 932 98.38569 485 96.62932 709 97.97426 933 98.38737 486 96.65138 710 97.97814 934 98.38904 487 96.67279 711 97.98222 935 98.39071 488 96.69484 712 97.98633 936 98.39238 489 96.71672 713 97.99027 937 98.39405 490 96.73787 714 97.99426 938 98.39571 491 96.75943 715 97.99808 939 98.39737 492 96.78084 716 98.00194 940 98.39902 493 96.80189 717 98.00593 941 98.40067 494 96.82331 718 98.00982 942 98.40232 495 96.84414 719 98.01382 943 98.40396 496 96.86485 720 98.01767 944 98.40561 497 96.88529 721 98.02146 945 98.40724 498 96.9058 722 98.0254 946 98.40888 499 96.92585 723 98.02911 947 98.41051 500 96.94614 724 98.03285 948 98.41214 501 96.95403 725 98.03685 949 98.41376 502 96.96276 726 98.04048 950 98.41539 503 96.97102 727 98.04435 951 98.41241 504 96.97887 728 98.04789 952 98.40944 505 96.987 729 98.05155 953 98.40648 506 96.99552 730 98.05551 954 98.40354 507 97.00351 731 98.05912 955 98.4006 508 97.01161 732 98.0628 956 98.39768 509 97.01959 733 98.06649 957 98.39477 510 97.02776 734 98.07038 958 98.39187 511 97.03577 735 98.07401 959 98.38898 512 97.0435 736 98.07774 960 98.3861 513 97.05177 737 98.08132 961 98.38323 514 97.05945 738 98.0849 962 98.38037 515 97.06723 739 98.08864 963 98.37752 516 97.07502 740 98.09204 964 98.37469 517 97.08307 741 98.09587 965 98.37186 518 97.09087 742 98.09918 966 98.36904 519 97.09856 743 98.10295 967 98.36624 520 97.10637 744 98.10648 968 98.36345 521 97.11406 745 98.10989 969 98.36066 522 97.12172 746 98.11354 970 98.35789 523 97.12935 747 98.11677 971 98.35513 524 97.13686 748 98.12041 972 98.35238 525 97.14451 749 98.12405 973 98.34964 526 97.15197 750 98.12733 974 98.34691 527 97.15956 751 98.1283 975 98.34419 528 97.16702 752 98.12883 976 98.34148 529 97.1744 753 98.12947 977 98.33879 530 97.18201 754 98.13053 978 98.3361 531 97.18959 755 98.13129 979 98.33342 532 97.19693 756 98.13211 980 98.33075 533 97.20424 757 98.13278 981 98.32809 534 97.21165 758 98.13417 982 98.32545 535 97.21893 759 98.13471 983 98.32281 536 97.22616 760 98.13531 984 98.32018 537 97.23347 761 98.13634 985 98.31756 538 97.24069 762 98.13677 986 98.31495 539 97.24789 763 98.13797 987 98.31235 540 97.25507 764 98.13857 988 98.30977 541 97.26222 765 98.13929 989 98.30719 542 97.26933 766 98.14027 990 98.30462 543 97.27646 767 98.14106 991 98.30206 544 97.28353 768 98.14193 992 98.29951 545 97.29051 769 98.14279 993 98.29697 546 97.29762 770 98.14357 994 98.29444 547 97.30452 771 98.14444 995 98.29192 548 97.31151 772 98.14547 996 98.28941 549 97.3185 773 98.14606 997 98.28691 550 97.32532 774 98.14698 998 98.28442 551 97.3317 775 98.14778 999 98.28193 552 97.33801 776 98.14869 1000 98.27946 553 97.34424 777 98.14976 1001 98.27847 554 97.35054 778 98.15024 1002 98.27748 555 97.35677 779 98.15114 1003 98.2765 556 97.36297 780 98.15214 1004 98.27554 557 97.3692 781 98.15301 1005 98.27457 558 97.37532 782 98.15388 1006 98.27362 559 97.3815 783 98.15475 1007 98.27268 560 97.38758 784 98.15563 1008 98.27174 561 97.39369 785 98.15651 1009 98.27081 562 97.39979 786 98.15739 1010 98.26989 563 97.40586 787 98.15827 1011 98.26897 564 97.41191 788 98.15916 1012 98.26807 565 97.41795 789 98.16005 1013 98.26717 566 97.42395 790 98.16094 1014 98.26628 567 97.42994 791 98.16184 1015 98.2654 568 97.43589 792 98.16273 1016 98.26452 569 97.44183 793 98.16363 1017 98.26366 570 97.44776 794 98.16454 1018 98.2628 571 97.45365 795 98.16544 1019 98.26194 572 97.45954 796 98.16635 1020 98.2611 573 97.4654 797 98.16726 1021 98.26026 574 97.47123 798 98.16817 1022 98.25943 575 97.47704 799 98.16908 1023 98.25861 576 97.48284 800 98.17 1024 98.2578 577 97.48861 801 98.17092 1025 98.25699 578 97.49437 802 98.17184 1026 98.25619 579 97.50011 803 98.17276 1027 98.25539 580 97.50582 804 98.17369 1028 98.25461 581 97.51151 805 98.17461 1029 98.25383 582 97.51718 806 98.17554 1030 98.25306 583 97.52284 807 98.17647 1031 98.25229 584 97.52848 808 98.17741 1032 98.25154 585 97.53409 809 98.17834 1033 98.25078 586 97.53969 810 98.17928 1034 98.25004 587 97.54527 811 98.18022 1035 98.2493 588 97.55082 812 98.18116 1036 98.24857 589 97.55638 813 98.18211 1037 98.24785 590 97.56187 814 98.18305 1038 98.24713 591 97.56738 815 98.184 1039 98.24642 592 97.57285 816 98.18495 1040 98.24572 593 97.57832 817 98.18589 1041 98.24502 594 97.58374 818 98.18684 1042 98.24433 595 97.58918 819 98.1878 1043 98.24365 596 97.59457 820 98.18875 1044 98.24297 597 97.59995 821 98.1897 1045 98.2423 598 97.60531 822 98.19066 1046 98.24164 599 97.61067 823 98.19162 1047 98.24098 600 97.61598 824 98.19258 1048 98.24033 601 97.61791 825 98.19354 1049 98.23969 602 97.61987 826 98.19451 1050 98.23905 603 97.62181 827 98.19547

<Second embodiment>

Please refer to FIG. 2 , which shows a schematic diagram of an electronic device 20 according to a second embodiment of the present disclosure. As can be seen from FIG. 2 , the electronic device 20 includes an imaging lens module (not shown) and an electronic photosensitive element 280 , wherein the electronic photosensitive element 280 is disposed on an imaging surface of the imaging lens module (not shown).

The imaging lens module includes plastic optical turning elements 210, 230 and an optical imaging lens group (not shown), wherein the plastic optical turning element 210 is arranged on the object side of the optical imaging lens group, and the plastic optical turning element 230 is arranged on the optical imaging lens group. The image side of the lens group. Specifically, the configuration of the plastic optical turning elements 210 and 230 can make the imaging lens module suitable for telephoto application (that is, the full viewing angle is less than 40 degrees), so as to effectively reduce the volume of the imaging lens module.

The optical imaging lens group includes lenses 221a, 221b, 221c, 221d and a fixed ring 223 in sequence from the object side to the image side, the lenses 221a, 221b, 221c are arranged in a lens barrel 222 of the optical imaging lens group, and the lens 221d and The fixing ring 223 is disposed in a driving member 224 of the optical imaging lens group, wherein the number, structure, surface shape and other optical characteristics of the lens can be configured according to different imaging requirements, and is not limited thereto.

The plastic optical turning element 210 includes a light incident surface 211 , a light emitting surface 212 , a reflective surface 213 and a reflective optical film layer (not shown in the figure), and the plastic optical turning element 230 includes a light incident surface 231 and a light emitting surface 232 , a reflective surface 233 and a reflective optical film layer (not shown). In detail, the light incident surfaces 211, 231 are respectively used to make an imaging light (not shown) enter the plastic optical turning elements 210, 230, and the light emitting surfaces 212, 232 are respectively used to make the imaging light exit the plastic optical turning elements 210, 230 , the reflective surfaces 213 and 233 are used to bend the imaging light, and the reflective optical film layer is disposed on one surface of the reflective surfaces 213 and 233 respectively. In the second embodiment, the plastic optical turning element 210 can be a plastic lens, and the light incident surface 211 and the light exit surface 232 have optical curved surfaces, but it is not limited thereto.

In addition, the structure and arrangement relationship of the remaining elements of the second embodiment and the first embodiment are the same, and will not be repeated here.

<Third Embodiment>

Please refer to FIG. 3A , which shows a schematic diagram of an electronic device 30 according to a third embodiment of the present disclosure. It can be seen from FIG. 3A that the electronic device 30 includes an imaging lens module (not shown) and an electronic photosensitive element 380 , wherein the electronic photosensitive element 380 is disposed on an imaging surface 381 of the imaging lens module.

The imaging lens module includes a plastic optical turning element 310 and an optical imaging lens group 320 , wherein the plastic optical turning element 310 is disposed on the image side of the optical imaging lens group 320 . Specifically, it is suitable for telephoto imaging lens modules (full viewing angle is less than 40 degrees), so as to effectively reduce the volume of imaging lens modules.

Please refer to Figures 3B to 3D, wherein Figure 3B shows a perspective view of the plastic optical turning element 310 according to the third embodiment shown in Figure 3A, and Figure 3C shows the plastic optical turning element 310 according to the third embodiment shown in Figure 3A Another perspective view of the component 310 , FIG. 3D shows a schematic diagram of the light incident surface 311 and the reflective surface 313 of the plastic optical turning component 310 in the third embodiment according to FIG. 3A . From Figure 3A to Figure 3D, it can be seen that the plastic optical turning element 310 includes a light incident surface 311, a light exit surface 312, a reflective surface 313, a reflective optical film layer (not shown in the figure), a connecting surface 315, and an injection mark structure 316 and at least one interlayer (not shown in the figure). In detail, the light incident surface 311 is used to make an imaging light (not shown) enter the plastic optical turning element 310, the light output surface 312 is used to make the imaging light exit the plastic optical turning element 310, and the reflective surface 313 is used to bend the imaging light. The reflective optical film layer is disposed on one surface of the reflective surface 313 , the connecting surface 315 connects the light incident surface 311 , the light emitting surface 312 and the reflective surface 313 , and the injection trace structure 316 is disposed on the connecting surface 315 . In the third embodiment, the number of reflective surfaces 313 is four, the number of connecting surfaces 315 is two, the number of injection mark structures 316 is two, and the number of interlayers is two. The surface 311 and the light-emitting surface 312 share a plane, and the actual number of interlayers may be two or more, but it is not limited thereto.

The reflective optical film layer includes a silver atomic layer (not shown in the figure), a bottom optical film (not shown in the figure) and a top layer of optical film (not shown in the figure), wherein the silver atomic layer is used to divert the imaging light entering the light incident surface 311 Reflected to the light-emitting surface 312; the bottom optical film is in direct contact with the silver atomic layer, and the bottom optical film is closer to the reflective surface 313 of the plastic optical turning element 310 than the silver atomic layer; the refractive index of the top optical film is lower than that of the bottom optical film, The top optical film is not in direct contact with the silver atomic layer, and the top optical film is farther away from the reflective surface 313 of the plastic optical turning element 310 than the silver atomic layer.

In the third embodiment, the material of the bottom optical film is Al ₂ O ₃ , and the material of the top optical film is SiO ₂ .

Further, the light incident surface 311, the light exit surface 312 and the reflective surface 313 respectively include an optical part (not shown in the figure) and an arc step structure (not shown in the figure), wherein the arc step structure is arranged on the The outer periphery and the circular arc step difference structure form a circular arc at the center of the optical part.

The refractive index of the bottom optical film is Nb, the thickness of the bottom optical film is db, the refractive index of the top optical film is Nt, the thickness of the top optical film is dt, the refractive index of the silver atomic layer is NAg, and the thickness of the silver atomic layer is dAg , the parameters satisfy the conditions in Table 3 below. Table three, the third embodiment Nb 1.6726 db (nm) 20 Nt 1.4618 dt (nm) 65 NAg 0.051 dAg (nm) 100

It must be noted that the refractive index of air is 1, the refractive index of the plastic optical turning element 310 is 1.64678, and the thickness of each interlayer is smaller than the thickness of the silver atomic layer.

In addition, the third embodiment is the same as the first embodiment in terms of structure and arrangement of other components, and will not be repeated here.

<Fourth embodiment>

FIG. 4A shows a schematic diagram of the electronic device 40 according to the fourth embodiment of the present disclosure, and FIG. 4B shows another schematic diagram of the electronic device 40 in the fourth embodiment according to FIG. 4A. It can be seen from FIG. 4A and FIG. 4B that the electronic device 40 of the fourth embodiment is a smart phone, and the electronic device 40 includes an imaging lens module (not shown in the figure), an electronic photosensitive element (not shown in the figure) and A user interface 41, wherein the electronic photosensitive element is arranged on an imaging surface (not shown in the figure) of the imaging lens module, and the imaging lens module is a super wide-angle camera module 42, a high-resolution camera module 43 and a telephoto camera module 44, and the user interface 41 is a touch screen, but not limited thereto. Furthermore, the imaging lens module includes a plastic optical turning element (not shown in the figure) and an optical imaging lens group (not shown in the figure), wherein the plastic optical turning element is arranged on the object side and the image side of the optical imaging lens group one.

Further, the telephoto camera module 44 can be any imaging lens module in the aforementioned first embodiment to the third embodiment, but the present disclosure is not limited thereto. In this way, it is helpful to meet the mass production and appearance requirements of the imaging lens module mounted on the current electronic device market.

Furthermore, the user enters the shooting mode through the user interface 41, wherein the user interface 41 is used for displaying images and has a touch function, and can be used to manually adjust the shooting angle to switch between different imaging lens modules. At this time, the imaging lens module collects the image light on the electronic photosensitive element, and outputs the electronic signal related to the image to the image signal processor (Image Signal Processor, ISP) 45 .

It can be seen from FIG. 4B that in response to the camera specification of the electronic device 40, the electronic device 40 may further include an optical anti-shake component (not shown in the figure), and further, the electronic device 40 may further include at least one focus assist module (not shown in the figure). marked) and at least one sensing element (not shown). The focus auxiliary module can be a flashlight module 46 that compensates for color temperature, an infrared rangefinder, a laser focus module, etc., and the sensing element can have the function of sensing physical momentum and motion energy, such as an accelerometer, a gyroscope, a Hall Component (Hall Effect Element), to sense the shaking and shaking imposed by the user's hand or the external environment, and then facilitate the autofocus function and the optical anti-shake component of the imaging lens module configuration in the electronic device 40, so as to Obtaining good imaging quality helps the electronic device 40 according to the present disclosure to have multiple modes of shooting functions, such as optimized Selfie, low-light HDR (High Dynamic Range, high dynamic range imaging), high-resolution 4K (4K Resolution) video recording Wait. In addition, the user can directly observe the shooting image of the camera through the user interface 41 , and manually operate the viewfinder range on the user interface 41 , so as to achieve the automatic focus function of what you see is what you get.

Furthermore, the imaging lens module, electronic photosensitive element, optical anti-shake component, sensing element and focusing auxiliary module can be arranged on a flexible printed circuit board (Flexible Printed Circuitboard, FPC) (not shown in the figure), and The imaging signal processing element 45 and other related elements are electrically connected through a connector (not shown in the figure) to execute the shooting process. The current electronic devices such as smart phones have a trend of light and thin. The imaging lens module and related components are arranged on the flexible circuit board, and then the circuit is integrated to the main board of the electronic device by using the connector, which can meet the limited space inside the electronic device. Design and circuit layout requirements and greater margins also enable the autofocus function of the imaging lens module to be controlled more flexibly through the touch screen of the electronic device. In the fourth embodiment, the electronic device 40 may include a plurality of sensing elements and a plurality of focusing auxiliary modules, the sensing elements and focusing auxiliary modules are arranged on a flexible circuit board and at least one other flexible circuit board (not shown in the figure), and Corresponding components such as the imaging signal processing component 45 are electrically connected through corresponding connectors to execute the shooting process. In other embodiments (not shown in the figure), the sensing element and the auxiliary optical element can also be arranged on the main board of the electronic device or other types of carrier boards according to the mechanism design and circuit layout requirements.

In addition, the electronic device 40 may further include but not limited to a display unit (Display), a control unit (Control Unit), a storage unit (Storage Unit), a temporary storage unit (RAM), a read-only storage unit (ROM) or a combination thereof.

FIG. 4C shows a schematic view of the image in the fourth embodiment according to FIG. 4A. As can be seen from FIG. 4C , the ultra-wide-angle camera module 42 can capture images in a larger range, and has the function of accommodating more scenes.

FIG. 4D is a schematic diagram of another image according to the fourth embodiment in FIG. 4A. It can be seen from FIG. 4D that the high-resolution camera module 43 can capture a certain range of high-resolution images, and has the function of high resolution and low distortion.

FIG. 4E shows still another image schematic diagram in the fourth embodiment according to FIG. 4A. It can be seen from FIG. 4E that the telephoto camera module 44 has a high magnification function, which can capture distant images and magnify them to a high magnification.

It can be seen from FIG. 4C to FIG. 4E that the electronic device 40 can implement the zoom function by using imaging lens modules with different focal lengths to frame the view and with image processing technology.

<Fifth Embodiment>

Please refer to FIG. 5 , which shows a schematic diagram of an electronic device 50 according to a fifth embodiment of the present disclosure. It can be seen from FIG. 5 that the electronic device 50 is a smart phone, and the electronic device 50 includes an imaging lens module (not shown) and an electronic photosensitive element (not shown), wherein the electronic photosensitive element is arranged on the imaging lens An imaging surface of the module (not shown in the figure), and the imaging lens module includes super wide-angle camera modules 511, 512, wide-angle camera modules 513, 514, telephoto camera modules 515, 516, 517, 518 and TOF The module (Time-Of-Flight: time-of-flight ranging module) 519, and the TOF module 519 can also be other types of imaging devices, and is not limited to this configuration.

Further, the telephoto camera modules 515 , 516 , 517 , and 518 can be any imaging lens module in the aforementioned first embodiment to the third embodiment, but the present disclosure is not limited thereto. In this way, it is helpful to meet the mass production and appearance requirements of the imaging lens module mounted on the current electronic device market.

Furthermore, the telephoto camera modules 517 and 518 are used to deflect light, but the present disclosure is not limited thereto.

According to the camera specifications of the electronic device 50, the electronic device 50 may further include an optical anti-shake component (not shown in the figure), further, the electronic device 50 may further include at least one focus assist module (not shown in the figure) and at least one Sensing elements (not shown in the figure). The focus auxiliary module can be a flashlight module 520 that compensates for color temperature, an infrared rangefinder, a laser focus module, etc. The sensing element can have the function of sensing physical momentum and motion energy, such as an accelerometer, a gyroscope, a Hall Component (Hall Effect Element), to sense the shaking and shaking imposed by the user's hand or the external environment, and then facilitate the autofocus function and the optical anti-shake component of the imaging lens module configuration in the electronic device 50, so as to Obtaining good imaging quality helps the electronic device 50 according to the present disclosure to have multiple modes of shooting functions, such as optimized Selfie, low-light HDR (High Dynamic Range, high dynamic range imaging), high-resolution 4K (4K Resolution) video recording Wait.

In addition, the structure and arrangement relationship of the remaining components of the fifth embodiment and the fourth embodiment are the same, and will not be repeated here.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

10,20,30,40,50: electronic devices

110,210,230,310: plastic optical transition elements

111,211,231,311: light incident surface

112,212,232,312: light-emitting surface

113,213,233,313: reflective surface

114: reflective optical film layer

114a: silver atomic layer

114b: Underlying optical film

114c: Top optical film

115,315: connecting surface

116,316: injection mark structure

117: middle interlayer

121a, 121b, 121c, 121d, 221a, 221b, 221c, 221d: lens

122,222: lens barrel

123,223: fixed ring

131: the first driving member

132: The first magnet

133: first rolling element

134: Magnetic parts

135: the first coil

141: the second driving member

142: second magnet

143: second rolling element

144: elastic element

145: second coil

150: shell

160: carrier

170: flexible circuit board

180,280,380: electronic photosensitive element

224: Driver

320: optical imaging lens group

381: imaging surface

41: User Interface

42,511,512: Super wide-angle camera modules

43:High resolution camera module

44,515,516,517,518: telephoto camera modules

45: Imaging signal processing components

46,520: flash module

513,514: Wide-angle camera modules

519:TOF module

Nb: Refractive index of underlying optical film

db: the thickness of the underlying optical film

Nt: Refractive index of the top optical film

dt: the thickness of the top optical film

NAg: Refractive index of silver atomic layer

dAg: the thickness of the silver atomic layer

R5459: The minimum reflectance of the reflective optical film layer between the wavelength of 540 nm and 590 nm

FIG. 1A shows a perspective view of an electronic device according to a first embodiment of the disclosure; FIG. 1B shows an exploded view of the electronic device in the first embodiment according to FIG. 1A; FIG. 1C shows another exploded view of the electronic device according to the first embodiment of FIG. 1A; FIG. 1D shows a schematic diagram of the electronic device in the first embodiment according to FIG. 1A; FIG. 1E shows a schematic diagram of the plastic optical turning element in the first embodiment according to FIG. 1A; Fig. 1F shows a schematic diagram of reflectance results according to the first embodiment of Fig. 1A; FIG. 2 shows a schematic diagram of an electronic device according to a second embodiment of the disclosure; FIG. 3A shows a schematic diagram of an electronic device according to a third embodiment of the disclosure; FIG. 3B shows a perspective view of the plastic optical turning element in the third embodiment according to FIG. 3A; FIG. 3C shows another perspective view of the plastic optical turning element in the third embodiment according to FIG. 3A; FIG. 3D shows a schematic diagram of the light incident surface and the reflective surface of the plastic optical turning element in the third embodiment according to FIG. 3A; FIG. 4A shows a schematic diagram of an electronic device according to a fourth embodiment of the disclosure; FIG. 4B shows another schematic diagram of the electronic device in the fourth embodiment according to FIG. 4A; FIG. 4C shows a schematic view of the image in the fourth embodiment according to FIG. 4A; FIG. 4D shows another image diagram according to the fourth embodiment in FIG. 4A; FIG. 4E shows a schematic diagram of still another image in the fourth embodiment according to FIG. 4A; and FIG. 5 is a schematic diagram of an electronic device according to a fifth embodiment of the disclosure.

110:Plastic optical turning element

111: light incident surface

112: light emitting surface

113: reflective surface

114: reflective optical film layer

114a: silver atomic layer

114b: Underlying optical film

114c: top optical film

117: middle interlayer

Claims (10)

A plastic optical turning element, comprising: a light incident surface for allowing an imaging light to enter the plastic optical turning element; a light output surface for allowing the imaging light to exit the plastic optical turning element; a reflective surface for turning The imaging light; a reflective optical film layer, disposed on a surface of the reflective surface, and comprising: a silver atomic layer, used to reflect the imaging light entering the light-incident surface to the light-emitting surface; a bottom optical film, In direct contact with the silver atomic layer, and the underlying optical film is closer to the reflective surface of the plastic optical turning element than the silver atomic layer; and a top optical film, the refractive index of the top optical film is lower than the refractive index of the bottom optical film ratio, the top optical film is not in direct contact with the silver atomic layer, and the top optical film is farther away from the reflective surface of the plastic optical turning element than the silver atomic layer; a connection surface connects the light incident surface, the light exit surface and The reflective surface; and an injection mark structure disposed on the connecting surface; wherein, the refractive index of the bottom optical film is Nb, the thickness of the bottom optical film is db, the refractive index of the top optical film is Nt, the The thickness of the top optical film is dt, the thickness of the silver atomic layer is dAg, which meets the following conditions: 1.4<Nt<Nb<2.1; 1.6<Nb<2.1; 1.4<Nt<1.58; 0.05<db/dAg<1.2; and 0.2<dAg/dt<3.5. The plastic optical turning element as claimed in claim 1, wherein the underlying optical film is a metal oxide layer. The plastic optical turning element as claimed in claim 1 further comprises: at least one interlayer disposed between the top optical film and the silver atomic layer. The plastic optical turning element as claimed in claim 3, wherein the at least one intermediate layer comprises a metal layer, and the metal layer does not contain silver atoms. The plastic optical turning element as claimed in item 1, wherein the thickness of the silver atomic layer is dAg, which satisfies the following condition: 75nm<dAg<200nm. The plastic optical turning element as claimed in claim 1, wherein the underlying optical film is in direct contact with the reflective surface of the plastic optical turning element. The plastic optical turning element according to claim 1, wherein the thickness of the bottom optical film is db, and the thickness of the top optical film is dt, which satisfy the following conditions: 0.05<db/dt<1.1. The plastic optical turning element as claimed in item 1, wherein the minimum reflectance of the reflective optical film layer is R5459 at a wavelength of 540nm~590nm, which satisfies the following conditions: 94.0%<R5459<99.99%. An imaging lens module, comprising: the plastic optical turning element as described in claim 1; and an optical imaging lens group, the plastic optical turning element is arranged on one of the object side and the image side of the optical imaging lens group. An electronic device, comprising: the imaging lens module as claimed in Claim 9; and an electronic photosensitive element disposed on an imaging surface of the imaging lens module.

Images