Abstract: An imaging optical lens system includes five lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The fourth lens element has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof.

Abstract: An optical imaging lens assembly from an object side to an image side includes a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an object-side surface facing the object side and an image-side surface facing the image side. The image-side surface of the first lens element is concave in a paraxial region thereof. The object-side surface of the fourth lens element is convex in a paraxial region thereof. The object-side surface of the fifth lens element is concave in a paraxial region thereof. At least one of the object-side surface and image-side surface of at least one of the first through fifth lens elements has at least one inflection point in an off-axis region thereof. An f-number of the optical imaging lens assembly is Fno, satisfying 1.5<Fno<2.0.

Abstract: An imaging optical lens assembly includes seven lens elements, in order from an object side to an image side along an optical path, are a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has negative refractive power. The object-side surface of the first lens element is concave in a paraxial region thereof and the image-side surface of the first lens element is convex in a paraxial region thereof. The object-side surface of the second lens element is convex in a paraxial region thereof. With specific conditions being satisfied, the imaging optical lens assembly can be miniaturized while providing superior image quality.

Abstract: A photographing optical lens assembly includes three lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element and a third lens element. Each of the three lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power, the object-side surface of the first lens element is convex in a paraxial region thereof, and the image-side surface of the first lens element is concave in a paraxial region thereof. The third lens element has negative refractive power, the image-side surface of the third lens element is concave in a paraxial region thereof, and the image-side surface of the third lens element has at least one inflection point.

Abstract: An image capturing system lens assembly includes eight lens elements, the eight lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The fourth lens element has negative refractive power. The image-side surface of the eighth lens element is concave in a paraxial region thereof, and the image-side surface of the eighth lens element includes at least one inflection point.

Abstract: An optical photography lens system includes a lens barrel and a plurality of lens elements disposed in the lens barrel. The total number of the plurality of lens elements is six, seven, or eight. Each of the plurality of lens elements has an object-side surface facing toward an object side and an image-side surface facing toward an image side. At least one of the object-side surface and the image-side surface of at least one lens element of the optical photography lens system has at least one inflection point. The optical photography lens system further includes a light-blocking element located in the lens barrel and located on an object side of the first lens element. The lens barrel has a lens-barrel-minimum opening located on an object side of a minimum opening of the light-blocking element.

Abstract: An optical imaging lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof. The fourth lens element has positive refractive power. The image-side surface of the fifth lens element is concave in a paraxial region thereof. The sixth lens element has positive refractive power, and the image-side surface of the sixth lens element is convex in a paraxial region thereof.

Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.

Abstract: A photographing optical lens assembly includes eight lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The first lens element has negative refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The fifth lens element has an object-side surface being convex in a paraxial region thereof. The sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The seventh lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof and having at least one inflection point.

Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.

Abstract: An imaging lens assembly module includes an imaging lens assembly, a light path folding element and a plastic assembling element. The imaging lens assembly includes an optical lens element. The light path folding element has a light incident surface, a light exiting surface and an optical reflecting surface. The plastic assembling element includes an assembling surface, a first surface and a second surface. The assembling surface is physically contacted with the light path folding element. Both the first surface and the second surface are disposed towards the light path folding element, and the second surface and the first surface are disposed adjacent to each other. The second surface and the optical reflecting surface are correspondingly disposed. The second surface includes a protruding structure array, and the protruding structure array includes at least seven protruding structures arranged at equal intervals.

Abstract: An optical lens assembly includes at least one optical element. At least one of the at least one optical element includes a multi-layer coating membrane, and the multi-layer coating membrane is formed by alternately stacking high refractive index layers and low refractive index layers. The multi-layer coating membrane is a dual-bandpass filtering membrane.

Abstract: An optical lens assembly includes at least one optical element. At least one of the at least one optical element includes a multi-layer coating membrane, and the multi-layer coating membrane is formed by alternately stacking high refractive index layers and low refractive index layers. The multi-layer coating membrane is a dual-bandpass filtering membrane.

Abstract: A camera module includes an imaging lens assembly, an image sensor and an optical plate. The image sensor is disposed on an image surface of the imaging lens assembly. The optical plate is disposed between the imaging lens assembly and the image sensor, and includes a substrate and at least one anti-reflection layer. The substrate has an object-side surface and an image-side surface, the object-side surface faces towards an object side, the image-side surface faces towards an image side, and the object-side surface is parallel with the image-side surface. The at least one anti-reflection layer is disposed on the object-side surface or the image-side surface of the substrate, the anti-reflection layer includes a nanocrystal structure layer and an optical-connecting layer, wherein the nanocrystal structure layer includes a metal oxide crystal, the optical-connecting layer connects the substrate and the nanocrystal structure layer.

Abstract: A photographing optical system includes five lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The object-side surface of the second lens element is concave in a paraxial region thereof. The fifth lens element has negative refractive power. The image-side surface of the fifth lens element is concave in a paraxial region thereof.

Abstract: An imaging system lens assembly includes six lens elements which are, in order from an object side to an image side along an optical path: 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. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The image-side surface of the fifth lens element is convex in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.

Abstract: A photographing lens assembly includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has negative refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The sixth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface having at least one inflection point.

Abstract: An imaging lens module includes an optical element holder being one-piece formed, a lens element and a light folding component corresponding to the lens element. Each of two side surfaces of the optical element holder has a light through hole, and light passes through the optical element holder via the light through holes. The optical element holder includes a lens element accommodation portion and a folding component accommodation portion respectively for the lens element and the light folding component to be disposed therein. The light folding component includes a light receive surface, a first reflection surface and a light exit surface. The light enters the light folding component from the light receive surface, the first reflection surface is configured to reflect the light coming from the light receive surface so as to redirect the light, and the light exits the light folding component from the light exit surface.

Abstract: An optical path folding camera module includes a light folding element, an object-side lens element, an image-side lens element, and a light-blocking sheet. The light folding element has a reflection surface. The object-side lens element has an optical surface being spherical or aspheric and being disposed corresponding to the reflection surface. The light-blocking sheet is disposed between the optical surface and the reflection surface. The light-blocking sheet includes an object-side surface, an image-side surface, a light-blocking part, and a light opening. The image-side surface is disposed opposite to the object-side surface and facing towards the reflection surface. The light-blocking part is connected to the object-side surface and the image-side surface and has a light-blocking surface. The light opening is defined by the light-blocking surface. The light-blocking surface continuously extends towards the object-side surface and the image-side surface without any crack.

Abstract: An imaging lens module includes an imaging lens, an adjustable aperture module, a first spacer and a second spacer. The adjustable aperture module is disposed between an object-side lens group and an image-side lens group of the imaging lens and comprises a blade assembly, fixed shafts, a movable component and a driving mechanism. The blade assembly includes at least two light-blocking blades forming a light pass aperture. The driving mechanism is to rotate the movable component in a circumferential direction, allowing the blade assembly to move relative to the fixed shafts for varying an aperture size of the light pass aperture. The fixed shafts are disposed on the first spacer. The second spacer and the first spacer together form an inner space in which the adjustable aperture module is accommodated. The second spacer receives and is in physical contact with the object-side lens group.