Abstract: A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, 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 negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.

Abstract: A photographing optical lens system includes seven lens elements, the seven 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, 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. At least one lens surface of the seven lens elements has at least one inflection point thereon.

Abstract: An image capturing optical system includes seven lens elements, the seven 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 and a seventh lens element. An image-side surface of the fifth lens element is convex in a paraxial region thereof. An image-side surface of the sixth lens element is concave in a paraxial region thereof. The seventh lens element has negative refractive power.

Abstract: The present disclosure provides an imaging optical lens assembly, including, in order from an object side to an image side: a first lens element with negative refractive power having an object-side surface being concave in a paraxial region, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power having an image-side surface being concave in a paraxial region and at least one convex shape in an off-axial region on the image-side surface, wherein the imaging optical lens assembly has a total of five lens elements.

Abstract: An image capturing optical system includes seven lens elements, the seven 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 and a seventh lens element. An image-side surface of the fifth lens element is convex in a paraxial region thereof. An image-side surface of the sixth lens element is concave in a paraxial region thereof. The seventh lens element has negative refractive power.

Abstract: A photographing optical 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 refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an object-side surface being concave in a paraxial region thereof. 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 concave in a paraxial region thereof. The photographing optical lens assembly has a total of six lens elements with refractive power.

Abstract: An imaging 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 with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The image-side surface of the fifth lens element has at least one inflection point.

Abstract: Disclosed is a tungsten-doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulates include a composition represented by a formula of LixMn0.998-y-zFeyMzW0.002PaO4a±p/C, wherein x, y, z, a, p, and M are as defined herein. Also disclosed is a powdery material including the particulates, and a method for preparing the powdery material.

Abstract: A photographing optical 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, 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 sixth lens element has at least one of an object-side surface and an image-side surface being aspheric, wherein at least one of the object-side surface and the image-side surface of the sixth lens element comprises at least one inflection point. The seventh lens element has an object-side surface and an image-side surface being both aspheric.

Abstract: An image capturing optical 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 a convex object-side surface. The second lens element with negative refractive power has a concave object-side surface. The third lens element has negative refractive power. The fourth lens element has refractive power. The fifth lens element with positive refractive power has a convex image-side surface. The sixth lens element with refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface of the sixth lens element are aspheric, and the sixth lens element has at least one inflection point on the image-side surface thereof.

Abstract: An imaging system lens assembly includes a first lens group and a second lens group. The first lens group includes a first catadioptric lens element and a second catadioptric lens element, the second lens group includes at least one lens element. Each of an object-side surface and an image-side surface of the first catadioptric lens element and the second catadioptric lens element includes a central region and a peripheral region. The peripheral region of the object-side surface of the first catadioptric lens element includes a first refracting surface. The peripheral region of the image-side surface of the second catadioptric lens element includes a first reflecting surface. The central region of the object-side surface of the first catadioptric lens element includes a second reflecting surface. The central region of the image-side surface of the second catadioptric lens element includes a last refracting surface.

Abstract: An image capturing lens system includes, 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 and an image-side surface being concave in a paraxial region thereof, a second 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, a third lens element with positive 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, and a fourth lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof.

Abstract: A method of fabricating a device includes providing a fin element in a device region and forming a dummy gate over the fin element. In some embodiments, the method further includes forming a source/drain feature within a source/drain region adjacent to the dummy gate. In some cases, the source/drain feature includes a bottom region and a top region contacting the bottom region at an interface interposing the top and bottom regions. In some embodiments, the method further includes performing a plurality of dopant implants into the source/drain feature. In some examples, the plurality of dopant implants includes implantation of a first dopant within the bottom region and implantation of a second dopant within the top region. In some embodiments, the first dopant has a first graded doping profile within the bottom region, and the second dopant has a second graded doping profile within the top region.

Abstract: A photographing optical 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 and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The third lens element has refractive power. The fourth lens element has refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and at least one of the object-side surface and the image-side surface thereof has at least one inflection point.

Abstract: An optical 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 and a fifth lens element. The first lens element with positive refractive power 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 second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.

Abstract: A lens system includes four 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 and a fourth lens element. Each of the 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 of the object-side surface and the image-side surface of the first lens element has at least one inflection point. The fourth lens element has positive refractive power, the object-side surface of the fourth lens element is convex in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point.

Abstract: A photographing optical 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 refractive power. Each of the third through sixth lens elements has refractive power and an object-side surface and an image-side surface being both aspheric. The photographing optical lens assembly has a total of six lens elements with refractive power.

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

Abstract: An imaging lens system includes eight 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, a seventh lens element and an eighth lens element. Each of the eight 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 lens element of the imaging lens system has at least one lens surface having at least one inflection point. The imaging lens system has a total of eight lens elements.

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