US2022091377A1PendingUtilityA1

Optical lens assembly

Assignee: GENIUS ELECTRONIC OPTICAL XIAMEN CO LTDPriority: Sep 24, 2020Filed: Dec 9, 2020Published: Mar 24, 2022
Est. expirySep 24, 2040(~14.2 yrs left)· nominal 20-yr term from priority
G02B 27/0172G02B 13/16G02B 27/0012G02B 13/18G02B 13/0045G02B 9/62G02B 27/0025G02B 13/0015
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Claims

Abstract

An optical lens assembly, sequentially including a first lens element to a sixth lens element from a first side to a second side along an optical axis, is provided. The optical lens assembly satisfies the conditional expressions of V1+V2+V6≤120.000 and EFL*Fno/D11t22≤11.500. Furthermore, other optical lens element assemblies are also provided.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An optical lens assembly, sequentially comprising an aperture, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element from a first side to a second side along an optical axis, wherein the first side is a light-exiting side or an object side, the second side is a light-incident side or an image side, and each of the first lens element to the sixth lens element comprises a first side surface that faces the first side and allows an imaging ray to pass through, and a second side surface that faces the second side and allows an imaging ray to pass through;
 the first lens element has negative refracting power;   an optical axis region of the second side surface of the fourth lens element is concave;   wherein lens elements of the optical lens assembly are the above six lens elements, and satisfies two following conditional expressions:   
       
         
           
             
               
                 
                   
                     V 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     1 
                   
                   + 
                   
                     V 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     2 
                   
                   + 
                   V6 
                 
                 ≦ 
                 120.000 
               
               ; 
               and 
             
           
         
         
           
             
               
                 
                   EFL 
                   * 
                   
                     Fno 
                     / 
                     D 
                   
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   11 
                   ⁢ 
                   t 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   22 
                 
                 ≦ 
                 11.500 
               
               , 
             
           
         
         where V1 is an Abbe number of the first lens element, V2 is an Abbe number of the second lens element, V6 is an Abbe number of the sixth lens element, EFL is an effective focal length of the optical lens assembly, Fno is an f-number of the optical lens assembly, and D11t22 is a distance from the first side surface of the first lens element to the second side surface of the second lens element on the optical axis. 
       
     
     
         2 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   TTL 
                   * 
                   
                     Fno 
                     / 
                     D 
                   
                   ⁢ 
                   2 
                   ⁢ 
                   2 
                   ⁢ 
                   t 
                   ⁢ 
                   6 
                   ⁢ 
                   2 
                 
                 ≦ 
                 3.400 
               
               , 
             
           
         
         where TTL is a distance from the first side surface of the first lens element to a reference surface on the optical axis, and D22t62 is a distance from the second side surface of the second lens element to the second side surface of the sixth lens element on the optical axis, and the reference surface is a light-emitting surface or an image plane. 
       
     
     
         3 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   T 
                   ⁢ 
                   
                     2 
                     / 
                     
                       T 
                       
                         a 
                         ⁢ 
                         v 
                         ⁢ 
                         g 
                       
                     
                   
                 
                 ≧ 
                 1.500 
               
               , 
             
           
         
         where T2 is a thickness of the second lens element on the optical axis, and T avg  is an average thickness of all of the lens elements of the optical lens assembly on the optical axis. 
       
     
     
         4 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   T 
                   ⁢ 
                   T 
                   ⁢ 
                   
                     L 
                     / 
                     A 
                   
                   ⁢ 
                   A 
                   ⁢ 
                   G 
                 
                 ≦ 
                 3.500 
               
               , 
             
           
         
         where TTL is a distance from the first side surface of the first lens element to a reference surface on the optical axis, and AAG is a sum of five air gaps of the first lens element to the sixth lens element on the optical axis, and the reference surface is a light-emitting surface or an image plane. 
       
     
     
         5 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   T 
                   ⁢ 
                   
                     L 
                     / 
                     
                       ( 
                       
                         
                           G 
                           ⁢ 
                           2 
                           ⁢ 
                           3 
                         
                         + 
                         
                           G 
                           ⁢ 
                           3 
                           ⁢ 
                           4 
                         
                         + 
                         
                           G 
                           ⁢ 
                           4 
                           ⁢ 
                           5 
                         
                         + 
                         
                           G 
                           ⁢ 
                           5 
                           ⁢ 
                           6 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 3.700 
               
               , 
             
           
         
         where TL is a distance from the first side surface of the first lens element to the second side surface of the sixth lens element on the optical axis, G23 is an air gap between the second lens element and the third lens element on the optical axis, G34 is an air gap between the third lens element and the fourth lens element on the optical axis, G45 is an air gap between the fourth lens element and the fifth lens element on the optical axis, and G56 is an air gap between the fifth lens element and the sixth lens element on the optical axis. 
       
     
     
         6 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   A 
                   ⁢ 
                   L 
                   ⁢ 
                   
                     T 
                     / 
                     
                       ( 
                       
                         
                           T 
                           ⁢ 
                           1 
                         
                         + 
                         
                           T 
                           ⁢ 
                           2 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 3.000 
               
               , 
             
           
         
         where ALT is a sum of six thicknesses of the first lens element to the sixth lens element on the optical axis, T1 is a thickness of the first lens element on the optical axis, and T2 is a thickness of the second lens element on the optical axis. 
       
     
     
         7 . The optical lens assembly according to  claim 1 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   D 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   11 
                   ⁢ 
                   t 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   
                     32 
                     / 
                     
                       ( 
                       
                         
                           G 
                           ⁢ 
                           3 
                           ⁢ 
                           4 
                         
                         + 
                         
                           G 
                           ⁢ 
                           5 
                           ⁢ 
                           6 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 3.800 
               
               , 
             
           
         
         where D11t32 is a distance from the first side surface of the first lens element to the second side surface of the third lens element on the optical axis, G34 is an air gap between the third lens element and the fourth lens element on the optical axis, and G56 is an air gap between the fifth lens element and the sixth lens element on the optical axis. 
       
     
     
         8 . An optical lens assembly, sequentially comprising an aperture, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element from a first side to a second side along an optical axis, wherein the first side is a light-exiting side or an object side, the second side is a light input side or an image side, and each of the first lens element to the sixth lens element comprises a first side surface that faces the first side and allows an imaging ray to pass through, and a second side surface that faces the second side and allows an imaging ray to pass through;
 the first lens element has negative refracting power and an optical axis region of the first side surface of the first lens element is convex;   the second lens element has positive refracting power;   an optical axis region of the first side surface of the fourth lens element is convex;   wherein lens elements of the optical lens assembly are the above six lens elements, and satisfies two following conditional expressions:   
       
         
           
             
               
                 V 
                 ⁢ 
                 
                     
                 
                 ⁢ 
                 1 
                 ⁢ 
                 
                   
                     
                       
                         + 
                         V 
                       
                       ⁢ 
                       2 
                     
                     + 
                     
                       V 
                       ⁢ 
                       6 
                     
                   
                   ≦ 
                   
                     1 
                     ⁢ 
                     2 
                     ⁢ 
                     
                       0 
                       . 
                       0 
                     
                     ⁢ 
                     00 
                   
                 
               
               ; 
               and 
             
           
         
         
           
             
               
                 
                   EFL 
                   * 
                   
                     Fno 
                     / 
                     D 
                   
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   11 
                   ⁢ 
                   t 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   22 
                 
                 ≦ 
                 11.500 
               
               , 
             
           
         
         where V1 is an Abbe number of the first lens element, V2 is an Abbe number of the second lens element, V6 is an Abbe number of the sixth lens element, EFL is an effective focal length of the optical lens assembly, Fno is an f-number of the optical lens assembly, and D11t22 is a distance from the first side surface of the first lens element to the second side surface of the second lens element on the optical axis. 
       
     
     
         9 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   T 
                   ⁢ 
                   T 
                   ⁢ 
                   
                     L 
                     / 
                     E 
                   
                   ⁢ 
                   F 
                   ⁢ 
                   L 
                 
                 ≦ 
                 1.900 
               
               , 
             
           
         
         where TTL is a distance from the first side surface of the first lens element to a reference surface on the optical axis, and the reference surface is a light-emitting surface or an image plane. 
       
     
     
         10 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   TL 
                   * 
                   
                     Fno 
                     / 
                     E 
                   
                   ⁢ 
                   F 
                   ⁢ 
                   L 
                 
                 ≦ 
                 3.000 
               
               , 
             
           
         
         where TL is a distance from the first side surface of the first lens element to the second side surface of the sixth lens element on the optical axis. 
       
     
     
         11 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   A 
                   ⁢ 
                   L 
                   ⁢ 
                   T 
                   ⁢ 
                   3 
                   ⁢ 
                   
                     6 
                     / 
                     
                       ( 
                       
                         
                           G 
                           ⁢ 
                           4 
                           ⁢ 
                           5 
                         
                         + 
                         
                           G 
                           ⁢ 
                           5 
                           ⁢ 
                           6 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 
                   
                     2 
                     . 
                     5 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where ALT36 is a sum of four thicknesses of the third lens element to the sixth lens element on the optical axis, and G45 is an air gap between the fourth lens element and the fifth lens element on the optical axis, and G56 is an air gap between the fifth lens element and the sixth lens element on the optical axis. 
       
     
     
         12 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   D 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   11 
                   ⁢ 
                   t 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   
                     32 
                     / 
                     
                       ( 
                       
                         
                           G 
                           ⁢ 
                           3 
                           ⁢ 
                           4 
                         
                         + 
                         
                           G 
                           ⁢ 
                           4 
                           ⁢ 
                           5 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 
                   
                     5 
                     . 
                     1 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where D11t32 is a distance from the first side surface of the first lens element to the second side surface of the third lens element on the optical axis, G34 is an air gap between the third lens element and the fourth lens element on the optical axis, and G45 is an air gap between the fourth lens element and the fifth lens element on the optical axis. 
       
     
     
         13 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   
                     
                       ( 
                       
                         
                           A 
                           ⁢ 
                           L 
                           ⁢ 
                           T 
                         
                         + 
                         
                           B 
                           ⁢ 
                           F 
                           ⁢ 
                           L 
                         
                       
                       ) 
                     
                     / 
                     D 
                   
                   ⁢ 
                   3 
                   ⁢ 
                   1 
                   ⁢ 
                   t 
                   ⁢ 
                   5 
                   ⁢ 
                   1 
                 
                 ≦ 
                 3.100 
               
               , 
             
           
         
         where ALT is a sum of six thicknesses of the first lens element to the sixth lens element on the optical axis, BFL is a distance from the second side surface of the sixth lens element to a reference surface, D31t51 is a distance from the first side surface of the third lens element to the first side surface of the fifth lens element on the optical axis, and the reference surface is a light-emitting surface or an image plane. 
       
     
     
         14 . The optical lens assembly according to  claim 8 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   
                     
                       ( 
                       
                         
                           T 
                           max 
                         
                         + 
                         
                           T 
                           min 
                         
                       
                       ) 
                     
                     / 
                     G 
                   
                   ⁢ 
                   3 
                   ⁢ 
                   4 
                 
                 ≦ 
                 
                   
                     6 
                     . 
                     0 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where T max  is a thickness of a thickest lens element of the optical lens assembly on the optical axis, T min  is a thickness of a thinnest lens element of the optical lens assembly on the optical axis, and G34 is an air gap between the third lens element and the fourth lens element on the optical axis. 
       
     
     
         15 . An optical lens assembly, sequentially comprising an aperture, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element from a first side to a second side along an optical axis, wherein the first side is a light-exiting side or an object side, the second side is a light input side or an image side, and each of the first lens element to the sixth lens element comprises a first side surface that faces the first side and allows an imaging ray to pass through, and a second side surface that faces the second side and allows an imaging ray to pass through;
 the first lens element has negative refracting power; 
 the second lens element has positive refracting power; 
 an optical axis region of the first side surface of the fourth lens element is convex; 
 a periphery region of the second side surface of the sixth lens element is convex, 
 wherein lens elements of the optical lens assembly are the above six lens elements, and satisfies two following conditional expressions: 
 
       
         
           
             
               
                 
                   
                     V 
                     ⁢ 
                     
                         
                     
                     ⁢ 
                     1 
                   
                   + 
                   V2 
                   + 
                   
                     V 
                     ⁢ 
                     6 
                   
                 
                 ≦ 
                 
                   1 
                   ⁢ 
                   2 
                   ⁢ 
                   
                     0 
                     . 
                     0 
                   
                   ⁢ 
                   00 
                 
               
               ; 
               and 
             
           
         
         
           
             
               
                 
                   EFL 
                   * 
                   
                     Fno 
                     / 
                     D 
                   
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   11 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   t 
                   ⁢ 
                   
                       
                   
                   ⁢ 
                   22 
                 
                 ≦ 
                 11.500 
               
               , 
             
           
         
         where V1 is an Abbe number of the first lens element, V2 is an Abbe number of the second lens element, V6 is an Abbe number of the sixth lens element, EFL is an effective focal length of the optical lens assembly, Fno is an f-number of the optical lens assembly, and D11t22 is a distance from the first side surface of the first lens element to the second side surface of the second lens element on the optical axis. 
       
     
     
         16 . The optical lens assembly according to  claim 15 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   A 
                   ⁢ 
                   L 
                   ⁢ 
                   T 
                   ⁢ 
                   4 
                   ⁢ 
                   
                     6 
                     / 
                     T 
                   
                   ⁢ 
                   3 
                 
                 ≦ 
                 3.100 
               
               , 
             
           
         
         where ALT46 is a sum of three thicknesses of the fourth lens element to the sixth lens element on the optical axis, and T3 is a thickness of the third lens element on the optical axis. 
       
     
     
         17 . The optical lens assembly according to  claim 15 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               ( 
               
                 
                   
                     
                       T 
                       ⁢ 
                       
                           
                       
                       ⁢ 
                       1 
                     
                     + 
                     
                       G 
                       ⁢ 
                       
                           
                       
                       ⁢ 
                       12 
                     
                     + 
                     
                       T 
                       ⁢ 
                       
                         2 
                         / 
                         G 
                       
                       ⁢ 
                       2 
                       ⁢ 
                       3 
                     
                   
                   ≦ 
                   
                     
                       6 
                       . 
                       8 
                     
                     ⁢ 
                     0 
                     ⁢ 
                     0 
                   
                 
                 , 
               
             
           
         
         where T1 is a thickness of the first lens element on the optical axis, T2 is a thickness of the second lens element on the optical axis, G12 is an air gap between the first lens element and the second lens element on the optical axis, and G23 is an air gap between the second lens element and the third lens element on the optical axis. 
       
     
     
         18 . The optical lens assembly according to  claim 15 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   A 
                   ⁢ 
                   L 
                   ⁢ 
                   
                     T 
                     / 
                     
                       ( 
                       
                         
                           T 
                           ⁢ 
                           2 
                         
                         + 
                         
                           T 
                           ⁢ 
                           3 
                         
                       
                       ) 
                     
                   
                 
                 ≦ 
                 
                   
                     2 
                     . 
                     6 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where ALT is a sum of six thicknesses of the first lens element to the sixth lens element on the optical axis, T2 is a thickness of the second lens element on the optical axis, and T3 is a thickness of the third lens element on the optical axis. 
       
     
     
         19 . The optical lens assembly according to  claim 15 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   T 
                   ⁢ 
                   T 
                   ⁢ 
                   
                     L 
                     / 
                     D 
                   
                   ⁢ 
                   3 
                   ⁢ 
                   1 
                 
                 ≦ 
                 
                   
                     4 
                     . 
                     0 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where TTL is a distance from the first side surface of the first lens element to a reference surface on the optical axis, D31t51 is a distance from the first side surface of the third lens element to the first side surface of the fifth lens element on the optical axis, and the reference surface is a light-emitting surface or an image plane. 
       
     
     
         20 . The optical lens assembly according to  claim 15 , wherein the optical lens assembly further conforms to a following conditional expression: 
       
         
           
             
               
                 
                   
                     ( 
                     
                       
                         D 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         11 
                         ⁢ 
                         t 
                         ⁢ 
                         
                             
                         
                         ⁢ 
                         22 
                       
                       + 
                       BFL 
                     
                     ) 
                   
                   / 
                   
                     T 
                     max 
                   
                 
                 ≦ 
                 
                   
                     2 
                     . 
                     8 
                   
                   ⁢ 
                   0 
                   ⁢ 
                   0 
                 
               
               , 
             
           
         
         where D11t22 is the distance from the first side surface of the first lens element to the second side surface of the second lens element on the optical axis, BFL is a distance from the second side surface of the sixth lens element to a reference surface, T max  is a thickness of a thickest lens element of the optical lens assembly on the optical axis, and the reference surface is a light-emitting surface or an image plane.

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