Camera optical lens

1 . A camera optical lens, comprising from an object side to an image side:

a first lens having positive refractive power;

a second lens having positive refractive power;

a third lens having negative refractive power; an object-side surface of the third lens is concave in a paraxial region, and an image-side surface of the third lens is convex in a paraxial region;

a fourth lens having positive refractive power; and

a fifth lens having refractive power;

wherein the first lens is made of a glass material, and at least one of the second lens, the third lens, the fourth lens, and the fifth lens is made of a glass material;

a working temperature of the camera optical lens ranges from −40° C. to 105° C.;

the camera optical lens satisfies following conditions:

1.50≤ TTL/f≤ 4.00;

−2.72≤ f 3/ f≤− 0.55;

−5.60≤( R 5+ R 6)/( R 5− R 6)≤0;

0.02≤ d 5/ TTL≤ 0.13,

1.70≤ n 1≤2.20; and

R 3/ R 4≤−2.00,

where

f denotes a focal length of the camera optical lens;

TTL denotes a total optical length from an object-side surface of the first lens to an image plane of the camera optical lens along an optic axis;

f3 denotes a focal length of the third lens;

R5 denotes a central curvature radius of an object-side surface of the third lens;

R6 denotes a central curvature radius of an image-side surface of the third lens;

d5 denotes an on-thickness of the third lens;

n1 denotes a refractive index of the first lens;

R3 denotes a central curvature radius of an object-side surface of the second lens, and

R4 denotes a central curvature radius of an image-side surface of the second lens.

2 . The camera optical lens as described in claim 1 , wherein the camera optical lens satisfies a following condition:

1.70≤ n 4≤2.20,

where

n4 denotes a refractive index of the fourth lens.

3 . The camera optical lens as described in claim 1 , wherein the camera optical lens satisfies a following condition:

( R 9+ R 10)/( R 9− R 10)≥1.50,

where

R9 denotes a central curvature radius of an object-side surface of the fifth lens, and

R10 denotes a central curvature radius of an image-side surface of the fifth lens.

4 . The camera optical lens as described in claim 1 , wherein the camera optical lens satisfies a following condition:

5.00≤| f 3/ d 5|≤10.00,

where

f3 denotes a focal length of the third lens; and

d5 denotes an on-axis thickness of the third lens.

5 . The camera optical lens as described in claim 1 , wherein a working wavelength of the camera optical lens ranges from 905 nm to 975 nm.

6 . The camera optical lens as described in claim 1 , wherein the camera optical lens satisfies following conditions:

0.63≤ f 1/ f≤ 20.19;

−7.72≤( R 1+ R 2)/( R 1− R 2)≤44.20; and

0.05≤ d 1/ TTL≤ 0.38,

where

f1 denotes a focal length of the first lens,

R1 denotes a central curvature radius of an object-side surface of the first lens;

R2 denotes a central curvature radius of an image-side surface of the first lens; and

d1 denotes an on-axis thickness of the first lens.

7 . The camera optical lens as described in claim 1 , wherein an object-side surface of the second lens is convex in a paraxial region, and an image-side surface of the second lens is convex in a paraxial region; and

the camera optical lens satisfies following conditions:

0.64≤ f 2/ f≤ 4.33; and

0.02≤ d 3/ TTL≤ 0.11,

where

f2 denotes a focal length of the second lens; and

d3 denotes an on-axis thickness of the second lens.

8 . The camera optical lens as described in claim 1 , wherein an image-side surface of the fourth lens is convex in a paraxial region;

the camera optical lens satisfies following conditions:

0.29≤ f 4/ f≤ 3.34;

0.13≤( R 7+ R 8)/( R 7− R 8)≤4.78; and

0.06≤ d 7/ TTL≤ 0.32,

where

f4 denotes a focal length of the fourth lens;

R7 denotes a central curvature radius of an object-side surface of the fourth lens;

R8 denotes a central curvature radius of an image-side surface of the fourth lens; and

d7 denotes an on-axis thickness of the fourth lens.

9 . The camera optical lens as described in claim 1 , wherein an object-side surface of the fifth lens is convex in a paraxial region, and an image-side surface of the fifth lens is concave in the paraxial region;

the camera optical lens satisfies following conditions:

−2.11≤ f 5/ f≤ 8.85; and

0.02≤ d 9/ TTL≤ 0.19,

where

f5 denotes a focal length of the fifth lens; and

d9 denotes an on-axis thickness of the fifth lens.