Abstract: An optical fingerprint identification system includes a base, a photo sensor, a light emitting layer and a cover. The photo sensor is disposed on the base. The light emitting layer is disposed above the photo sensor, and the light emitting layer includes a light emitting element. The cover is disposed above the light emitting layer. The optical fingerprint identification system further includes a light path adjusting element between the photo sensor and the cover. The light emitting element is disposed away from the light path adjusting element and the photo sensor in a sideway direction that is different from a stack direction of the optical fingerprint identification system.

Abstract: This disclosure provides an imaging lens system including, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element with negative refractive power; a third lens element with refractive power, wherein an object-side surface and an image-side surface thereof are aspheric; a fourth lens element with refractive power, wherein an object-side surface and an image-side surface thereof are aspheric; and a fifth lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, which are both aspheric. The imaging lens system is further provided with an aperture stop, and there is no lens element with refractive power disposed between the aperture stop and the first lens element.

Abstract: A plastic lens barrel includes an object-end portion, an image-end portion and a tube portion. The object-end portion has an object-end outer surface, an object-end opening and an object-end inner surface, wherein one end of the object-end inner surface is connected to the object-end outer surface and surrounds the object-end opening. The image-end portion has an image-end outer surface and an image-end opening. The tube portion connected object-end portion and the image-end portion, and includes a plurality of tube inner surfaces. At least one of the tube inner surfaces and the object-end inner surface includes a plurality of annular convex structures. Each of the annular convex structures surrounds a central axis of the plastic lens barrel. A cross-sectional plane of each annular convex structure passing through the central axis includes a peak point and two valley point.

Abstract: An imaging lens assembly module has an optical axis, and includes at least one plastic lens element, a carrier element and a light absorbing layer. The plastic lens element, in order from a center to a peripheral region thereof, includes an optical effective portion and a peripheral portion. A side of the peripheral portion includes a plurality of step structures interposed between the side of the peripheral portion and a same side of the optical effective portion. The carrier element defines an inner space for disposing the plastic lens element, and includes a tip end minimal opening and a plurality of annular inner walls. The light absorbing layer is disposed on the peripheral portion of the plastic lens element, and the step structures and the at least one of the annular inner walls facing towards the plastic lens element.

Abstract: An electronic device includes at least one optical lens system. The optical lens system includes five lens elements, and the five lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. At least one of outside surfaces and inside surfaces of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element is aspheric and includes at least one inflection point.

Abstract: An imaging optical lens 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 second lens element with negative refractive power has the object-side surface being concave in a paraxial region thereof, and at least one lens surface of the second lens element is aspheric. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The imaging optical lens system further includes an aperture stop located between the second lens element and the third lens element.

Abstract: A photographing optical lens assembly includes five lens elements with refractive power, in order from an object side to an image side. The first lens element with refractive power has a convex object-side surface. The second lens element with positive refractive power has an object-side surface and an image-side surface both being aspheric. The third lens element has positive refractive power. The fourth lens element with refractive power has a concave object-side surface. The fifth lens element with refractive power has an object-side surface and a concave image-side surface with at least one inflection point, both the object-side surface and the image-side surface being aspheric.

Abstract: A photographing lens assembly 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 and a sixth 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 positive refractive power, wherein both surfaces thereof are aspheric. The fourth lens element has refractive power, wherein both surfaces thereof are aspheric. The fifth lens element has negative refractive power, wherein both surfaces thereof are aspheric. The sixth lens element with positive 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, wherein both of the two surfaces are aspheric.

Abstract: An optical image stabilization driver device includes an image sensor, a fixed carrier, a circuit element, an elastic element and a driving element. The circuit element includes a fixed part disposed on the fixed carrier, a movable part and an electrical transmission part. The image sensor is disposed on the movable part. The electrical transmission part has conductive routes electrically connected to the movable part and the fixed part. The elastic element includes a first frame part corresponding to the fixed part, a second frame part corresponding to the movable part and an elastic connection part connected to the first frame part and the second frame part and providing the image sensor with a freedom of movement in a plane. The driving element is configured to drive the image sensor to move relative the fixed carrier in the plane.

Abstract: An image capturing lens system, including, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with negative refractive power having at least one of an object-side surface and an image-side surface thereof being aspheric and having at least one inflection point thereof; and a sixth lens element with positive refractive power having both an object-side surface and an image-side surface being convex thereof and at least one of the object-side surface and the image-side surface thereof being aspheric; wherein the image capturing lens system has a total of six lens elements.

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

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 lens assembly includes six 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 and a sixth lens element. The second lens element has positive refractive power. The third lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.

Abstract: A light pass aperture module, in order along a central axis, includes a blade assembly and a cap. The blade assembly includes a plurality of blades. The blades form a light pass aperture, and the light pass aperture is variable in size with the central axis as a center. The cap covers the blade assembly. The cap has a through hole, and the through hole is disposed corresponding to the light pass aperture. The cap includes a surface level down structure. The surface level down structure is disposed corresponding to one of the blades, and the surface level down structure is closer to the one blade than the through hole.

Abstract: An optical imaging system includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element, a third lens element, a fourth lens element, and a fifth lens element. Each of the fourth lens element and the fifth lens element includes at least one aspheric surface. The fourth lens element and the fifth lens element are made of plastic. The fifth lens element includes a concave image-side surface and at least one inflection point. An axial distance is formed between each of the first lens element, the second lens element, the third lens element, the fourth lens element, and the fifth lens element, and the optical imaging system further comprises a stop.

Abstract: A photographing lens system includes, in order from an object side to an image side along an optical path, a front lens group and a rear lens group. The front lens group includes four lens elements. The rear lens group includes four lens elements. A second lens element counted from the image side in the front lens group has negative refractive power. An image-side surface of a first lens element counted from the image side in the front lens group is convex in a paraxial region thereof. A second lens element counted from the object side in the rear lens group has negative refractive power. An object-side surface of a first lens element counted from the image side in the rear lens group is concave in a paraxial region thereof. At least one lens element in the rear lens group has at least one lens surface being aspheric.

Abstract: A photographing 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 second lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof.

Abstract: An imaging lens system has an optical axis and an image surface through which the optical axis passes. The imaging lens system includes a plastic lens barrel surrounding the optical axis. The plastic lens barrel includes an image-side portion and an object-side aperture through which the optical axis passes, and the image-side portion is located between the image surface and the object-side aperture. The image-side portion includes a protrusive structure surrounding the optical axis and extending towards the image surface. The protrusive structure has an inner surface facing the optical axis, an outer surface disposed opposite to the inner surface and located farther away from the optical axis than the inner surface and a reflection-reducing surface extending towards the image surface and connected to and located between the inner surface and the outer surface. The protrusive structure includes a reflection-reducing structure disposed on the reflection-reducing surface.

Abstract: This disclosure discloses an optical imaging lens assembly, sequentially arranged from an object side to an image side along an optical axis, comprising: the first lens element with positive refractive power, the second lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the third lens element with positive refractive power, the fourth lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the fifth lens element with refractive power having a concave image-side surface, and both object-side surface and image-side surface being aspheric, wherein a stop and an image sensor disposed on an image plane are also provided. By such arrangements, the image pickup optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.

Abstract: An imaging lens assembly includes a plastic barrel and a lens set, and the lens set is disposed in the plastic barrel. The plastic barrel includes an object-side outer surface, a first inner surface and a second inner surface. The lens set has an optical axis, and includes, in order from an object side to an image side thereof, at least one plastic lens element and a spacer. A light-absorbing coating is disposed on the plastic lens element. The spacer includes an object-side connecting surface and a relative surface. When the object-side connecting surface is connected with a neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element. There is an overlap between the second inner surface and the relative surface along a direction parallel to the optical axis.