According to certain embodiments of the disclosure, a lens assembly and/or an electronic device including the same may comprise an image sensor, three or four lenses sequentially arranged along an optical axis from an object side to an image sensor side, and a coating layer provided on an object-side surface or an image sensor-side surface of at least one of the lenses and configured to at least partially block light in a wavelength band of 800 nm to 1000 nm. The lens assembly may meet Equation 1 and Equation 2.

0.001≤BFL/HFoV≤0.02  [Equation 1]

1.3≤OAL/IH≤1.6  [Equation 2]

Other various embodiments are possible as well.

According to certain embodiments of the disclosure, a lens assembly and/or an electronic device including the same may comprise an image sensor, three or four lenses sequentially arranged along an optical axis from an object side to an image sensor side, and a coating layer provided on an object-side surface or an image sensor-side surface of at least one of the lenses and configured to at least partially block light in a wavelength band of 800 nm to 1000 nm. The lens assembly may meet Equation 1 and Equation 2.

0.001≤BFL/HFoV≤0.02  [Equation 1]

1.3≤OAL/IH≤1.6  [Equation 2]

Other various embodiments are possible as well.

An infrared projection lens assembly includes, in order from the image side to the image source side: a stop, a first lens with positive refractive power, a second lens with refractive power, and a third lens with positive refractive power, wherein a radius of curvature of an image-side surface of the first lens is R1, half of a maximum view angle (field of view) of the infrared projection lens assembly is HFOV, a focal length of the infrared projection lens assembly is f, and following condition is satisfied: −18.2<R1/(sin(HFOV)*f)<−1.53, so as to provide projected light of large angle.

An optical lens assembly includes, in order from the object side to the image side: a stop, a first lens, a second lens, a third lens, and an IR band-pass filter, wherein half of a maximum view angle (field of view) of the optical lens assembly is HFOV, a radius of curvature of an image-side surface of the third lens is R6, a focal length of the optical lens assembly is f, and following condition is satisfied: −6.83<HFOV/(R6/f)<44.10, which is favorable to the thinning and large field of view of the lens assembly.

The invention discloses a three-piece optical lens for capturing image and a five-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.

The invention discloses a three-piece optical lens for capturing image and a five-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.

The present disclosure provides an optical system and a near-eye display device. The optical system includes an optical waveguide and an eyepiece system. The eyepiece system is on a light incident side of the optical waveguide, and a light exit side of the eyepiece system is opposite to the light incident side of the optical waveguide so that light exited from the eyepiece system is incident on the optical waveguide. The eyepiece system includes a lens group which includes a first lens, a second lens and a third lens which are sequentially arranged in a direction parallel to the optical axis of the lens group; a side of the first lens away from the second lens is the light exit side of the eyepiece system, each of the first lens and the third lens has a positive focal power; and the second lens has a negative focal power.

The present disclosure provides an optical system and a near-eye display device. The optical system includes an optical waveguide and an eyepiece system. The eyepiece system is on a light incident side of the optical waveguide, and a light exit side of the eyepiece system is opposite to the light incident side of the optical waveguide so that light exited from the eyepiece system is incident on the optical waveguide. The eyepiece system includes a lens group which includes a first lens, a second lens and a third lens which are sequentially arranged in a direction parallel to the optical axis of the lens group; a side of the first lens away from the second lens is the light exit side of the eyepiece system, each of the first lens and the third lens has a positive focal power; and the second lens has a negative focal power.

Disclosed are systems, methods, and structures for monocentric multiscale gigapixel imaging systems and cameras employing a Galilean architecture wherein adjacent subimages do not overlap while advantageously producing a reduced system volume, improved relative illumination and image quality as compared with prior art systems.

Disclosed is an optical lens, from an object side to an image side including a first lens, a second lens and a third lens. The camera optical lens satisfies: 1.20≤f1/f≤1.80; −2.00≤f2/f≤−1.00; 0.75≤f3/f≤1.10; −6.00≤R2/R1≤−2.00; 2.20≤R4/R3≤8.00; 1.50≤d2/d4≤3.50; where f, f1, f2 and f3 denote a focal length of the camera optical lens, the first lens, the second lens and the third lens, respectively; R1, R2 denote a central curvature radius of an object-side surface and an image-side surface of the first lens, respectively; R3, R4 denote a central curvature radius of an object-side surface and an image-side surface of the second lens, respectively; d2 denotes an on-axis distance from the image-side surface of the first lens to the object-side surface of the second lens, and d4 denotes an on-axis distance from the image-side surface of the second lens to an object-side surface of the third lens.