The invention discloses a three-piece optical lens for capturing image and a three-piece optical module for capturing image, which include, along the optical axis in order from an object side to an image side, a first lens with positive refractive power having an object-side surface which can be convex; a second lens with refractive power; a third lens with refractive power; two surfaces of each of the three lenses can be both aspheric. The third lens can have positive refractive power, wherein an image-side surface thereof can be concave, and both surfaces thereof are aspheric; at least one surface of the third lens has an inflection point. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

An electronic device includes a lens system. The lens system includes three lens elements, which are, in order from an outer side to an inner side: a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an outer-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The third lens element has positive refractive power.

An electronic device includes a lens system. The lens system includes three lens elements, which are, in order from an outer side to an inner side: a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an outer-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The third lens element has positive refractive power.

A near eye display system can include a first triplet lens arranged in a tile fashion and configured to be associated with a left eye. The near eye display system also can include a second triplet lens arranged in the tile fashion and configured to be associated with a right eye. A multiple display system can be paired with the first triplet lens and the second triplet lens.

Techniques disclosed herein relate to micro light emitting diodes (micro-LEDs) for a display system. A display system includes an array of micro light emitting diodes (micro-LEDs), an array of output couplers optically coupled to the array of micro-LEDs and configured to extract light emitted by respective micro-LEDs in the array of micro-LEDs, a waveguide display, and display optics configured to couple the light emitted by the array of micro-LEDs and extracted by the array of output couplers into the waveguide display. Each output coupler in the array of output couplers is configured to direct a chief ray of the light emitted by a respective micro-LED in the array of micro-LEDs to a different respective direction.

A three-piece optical lens for capturing image and a three-piece optical module for capturing image, along the optical axis in order from an object side to an image side, include 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.

A three-piece optical lens for capturing image and a three-piece optical module for capturing image, along the optical axis in order from an object side to an image side, include 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.

An optical imaging system is provided. The optical imaging system includes, from an object side to an image side, a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, and an infrared cut-off filter. The infrared cut-off filter is located between the first lens and the second lens or between the second lens and the third lens. In this way, a miniaturization of the optical imaging system can be achieved, a step of the optical imaging system can be reduced, and stability of an assembly of the optical imaging system can be improved so as to improve a production yield of the optical imaging system and lower a cost. An image capturing apparatus and an electronic device are further provided.

An optical imaging system is provided. The optical imaging system includes, from an object side to an image side, a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a positive refractive power, and an infrared cut-off filter. The infrared cut-off filter is located between the first lens and the second lens or between the second lens and the third lens. In this way, a miniaturization of the optical imaging system can be achieved, a step of the optical imaging system can be reduced, and stability of an assembly of the optical imaging system can be improved so as to improve a production yield of the optical imaging system and lower a cost. An image capturing apparatus and an electronic device are further provided.

An optical lens is provided with three lens pieces. The optical lens includes a diaphragm, a first lens piece having positive focal power, a second lens piece having negative focal power and a third lens piece having positive focal power, arranged in sequence. The first lens piece has an S1 surface and an S2 surface. The second lens piece has an S3 surface and an S4 surface. The third lens piece has an S5 surface and an S6 surface. An S7 surface is provided on a side of the S6 surface away from the S5 surface. A lens frame is provided at the S6 surface or between the S6 and S7 surfaces. The calibers of the Si to S7 surfaces sequentially decrease. An equivalent focal length of the first lens piece is larger than that of the third lens piece. A numerical aperture of the lens is larger than 0.6.