Abstract: An optical imaging lens assembly includes seven lens elements which are, 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 and a seventh lens element. The seventh lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the seventh lens element has at least one critical point in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are both aspheric.

Abstract: An imaging optical system includes an infrared light absorbing element, an infrared light reducing film and a plate element in order along a paraxial path. The infrared light absorbing element is made of an infrared light absorbing plastic material, and the infrared light absorbing element is configured to refract a light. The infrared light reducing film is closer to an image surface of the imaging optical system than an incident surface of the infrared light absorbing element to the image surface of the imaging optical system. The plate element is disposed between the infrared light reducing film and the image surface, the plate element includes a translucent portion, a holder portion and a taper structure coating. The taper structure coating is disposed on at least one of an incident surface and an exit surface of the translucent portion.

Abstract: An image capturing optical system 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 third lens element has negative refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The sixth lens element has positive refractive power. The seventh lens element with negative refractive power has the object-side surface being convex in a paraxial region thereof and the image-side surface being concave in a paraxial region thereof and having at least one inflection point.

Abstract: A photographing lens assembly includes at least four lens elements that are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, at least one subsequent lens element and a last lens element that is closest to an image surface. Each of the at least four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one surface among lens surfaces from the image-side surface of the second lens element to the object-side surface of the last lens element is a metasurface having a subwavelength microstructure.

Abstract: An imaging lens module includes a casing, an imaging lens disposed to the casing, a lens carrier supporting the image lens, an elastic element connected to the lens carrier to provide the lens carrier with a translational degree of freedom along an optical axis, a frame connected to the elastic element such that the lens carrier is movable along the optical axis with respect to the frame, a variable through hole module coupled to the imaging lens and having a light passable hole with a variable aperture size, and a wiring assembly including a fixed wiring part at least partially located closer to the opening than the elastic element and a movable wiring part electrically connected to the fixed wiring part and the variable through hole module. The optical axis passes through lens elements of the imaging lens and the center of the variable through hole module.

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

Abstract: An imaging optical lens system includes eleven 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, an eighth lens element, a ninth lens element, a tenth lens element and an eleventh lens element. There is an air gap in a paraxial region between each of all adjacent lens elements of the imaging optical lens system. At least one of an object-side surface and an image-side surface of each of at least two lens elements located between an aperture stop and an image surface of the imaging optical lens system is concave in a paraxial region thereof and has at least one convex critical point in an off-axis region thereof.

Abstract: An electronic device includes a transparent element, an optical component and an anti-reflecting layer. The transparent element is configured to separate an inner side and an outer side of the electronic device, so that a light passes through the transparent element to enter or leave the electronic device, and the transparent element includes an inner side surface and an outer side surface. The inner side surface faces towards the inner side, and the outer side surface faces towards the outer side. The optical component is corresponding to the inner side surface of the transparent element. The anti-reflecting layer is disposed on at least one portion of the inner side surface of the transparent element.

Abstract: A plastic lens element includes an optical effective region and a peripheral region. The peripheral region is circularly disposed on a periphery of the optical effective region, and the peripheral region includes a protrusive structure, an indented shape and a drafting part. The protrusive structure is disposed on an outer diameter surface and adjacent to an annular lateral surface. The indented shape is dented from the outer diameter surface towards the optical effective region. The drafting part is raised from a base surface towards the direction away from an optical axis, and the drafting part has a top surface and a bottom surface via the section, wherein the top surface and the bottom surface are arranged along an extending direction parallel to the optical axis, and a conical surface is located between the top surface and the bottom surface.

Abstract: An imaging lens assembly, having an optical axis, includes an imaging lens set and a lens holding member. The lens holding member accommodates the imaging lens set for aligning the imaging lens set with the optical axis. The lens holding member includes a plurality of light-blocking structures, which are disposed on an object side of the imaging lens set and surround the optical axis for forming a light passing hole. Each of the light-blocking structures is a straight-line shape and has two end points and one central point, and the central point is closer to the optical axis than each of the two end points thereto. A maximum radius of the light passing hole is defined by a position near each of the two end points, and a minimum radius thereof is defined by a position near the central point.

Abstract: An imaging lens assembly module includes a lens barrel, a catadioptric lens assembly, an imaging lens assembly, a first fixing element and a second fixing element. The lens barrel has a first relying surface and a second relying surface, which face towards an object side of the imaging lens assembly module. The catadioptric lens assembly relies on the first relying surface. The imaging lens assembly is disposed on an image side of the catadioptric lens assembly, and relies on the second relying surface. The first fixing element is for fixing the catadioptric lens assembly to the lens barrel. The second fixing element is for fixing the imaging lens assembly to the lens barrel. The catadioptric lens assembly is for processing at least twice internal reflections of an image light in the imaging lens assembly module, and for providing optical refractive power.

Abstract: A light blocking sheet includes a central opening and a plurality of light blocking structures. A central axis passes through the central opening. The light blocking structures surround an inner peripheral surface of the central opening, the light blocking structures are tapered and extended from the central opening towards a direction close to the central axis, and the light blocking structures are for defining a circumscribed circle and an inscribed circle, wherein a plurality of inscribed circle ends of the light blocking structures close to the central axis are contacted with the inscribed circle, and a plurality of circumscribed circle ends of the light blocking structures away from the central axis are contacted with the circumscribed circle.

Abstract: An imaging lens assembly includes a plurality of optical elements and a lens barrel. At least one optical element of the optical elements is a lens element. The lens element includes an optical effective portion, a peripheral portion, a light-blocking coating layer and a nanostructure layer. The light-blocking coating layer is disposed on at least one surface of the object-side peripheral surface and the image-side peripheral surface and includes a tapered portion. The tapered portion is tapered adjacent to a boundary between the optical effective portion and the peripheral portion. The nanostructure layer is disposed on the optical effective portion and the tapered portion of the light-blocking coating layer, and the nanostructure layer has a plurality of irregular ridge-shaped protrusions. The tapered portion of the light-blocking coating layer forms a light-passing opening adjacent to the boundary along a direction surrounding the optical axis.

Abstract: According to the present disclosure, an optical lens assembly includes at least two optical lens elements and at least one reflective element. The reflective element is made of a plastic material, the reflective element includes a reflective coating membrane, and the reflective coating membrane is disposed on a surface of the reflective element. The reflective coating membrane includes at least three coating layers of different materials, the at least three coating layers are respectively made of a first material, a second material and a third material, the first material mainly includes silver, the second material mainly includes titanium, the third material mainly includes chromium oxides, and the coating layer made of the first material and the coating layer made of the second material are disposed between the coating layer made of the third material and the reflective element.

Abstract: A photographing lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof, and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.

Abstract: A photographing optical system 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. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has positive refractive power. The fourth lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface having at least one inflection point.

Abstract: An image lens assembly includes six lens elements, and the six lens elements 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 towards the object side and an image-side surface towards the image side. The first lens element with negative refractive power has the image-side surface being concave in a paraxial region thereof. The second lens element has negative refractive power. At least one surface of at least one of the six lens elements includes at least one inflection point.

Abstract: An imaging lens assembly module includes a lens carrier, a rotatable component, an imaging surface and a holder portion. At least one lens element of the imaging lens assembly module is disposed on the lens carrier, and the lens carrier includes an assembling structure. The rotatable component includes a blade set and a rotating element. The blade set includes rotatable blades surrounding an optical axis to form a through hole. The rotating element is connected to the blade set. The imaging surface is located on an image side of the lens carrier. The holder portion is configured to keep a fixed distance between the lens carrier and the imaging surface. The blade set and the rotating element are disposed on the assembling structure, and the blade set and the rotating element rotate relatively to the assembling structure, so that the dimension of the through hole is variable.

Abstract: An imaging lens module has an image surface and includes an optical lens assembly, a plurality of monomer structures and a cover member. The optical lens assembly is disposed on an object side of the image surface and defines an optical axis. The optical lens assembly includes a light-blocking element, which includes a light-blocking portion. The light-blocking portion is disposed closer to the optical axis than a portion of the light-blocking element other than the light-blocking portion thereto. The monomer structures are disposed on the object side of the image surface, and each of the monomer structures is extended along a direction parallel to the optical axis. The cover member is disposed on an object side of the optical lens assembly, and the optical axis passes through the cover member. The monomer structures are disposed on the light-blocking portion of the light-blocking element.

Abstract: An optical photographing lens includes two lens groups including six lens elements. The two lens groups are, in order from an object side to an image side, a first and a second lens groups. The six lens elements are, in order from the object side to the image side, a first lens element through a sixth lens element. A focal length adjusting process is performed by changing an axial distance between the lens groups for varying a focal length of the optical photographing lens. The second lens group moves relative to the first lens group during the focal length adjusting process. At least one lens surface of the optical photographing lens has at least one inflection point always located within an optically effective area during the focal length adjusting process. The second lens element has negative refractive power.