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 optical image lens assembly 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 object-side surface of the first lens element is convex in a paraxial region thereof. The image-side surface of the third lens element is concave in a paraxial region thereof. The object-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fourth lens element is convex in a paraxial region thereof.

Abstract: An optical image capturing 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 and a seventh lens element. The first, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

Abstract: 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.

Abstract: An image capturing 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 has refractive power. The third lens element has refractive power, and an object-side surface and an image-side surface thereof being aspheric. The fourth lens element has negative 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 object-side surface, and the object-side surface and an image-side surface thereof are aspheric.

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 optical imaging lens system 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. 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. The eighth lens element has negative refractive power. The object-side surface of the eighth lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof and has at least one critical point in an off-axis region thereof. A total number of lens elements in the optical imaging lens system is eight.

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: A photographing lens assembly includes five lens elements, 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. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.

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 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 third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and at least one of an object-side surface and the image-side surface of the seventh lens element includes at least one inflection point. At least one surface of the seven lens elements is aspheric.

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 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 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 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 has refractive power. The second lens element has positive refractive power. The third lens element with positive refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and at least one of the surfaces of the fifth lens element has at least one inflection point. The optical photographing lens assembly has a total of five lens elements with refractive power.

Abstract: An optical imaging 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 of the optical imaging system has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof and has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.

Abstract: The invention provides a device for sputtering comprising a main magnet, two secondary magnets mounted on two sides of the main magnet symmetrically, and a shell. The two secondary magnets face to each other in ends with the same polarity in a line. The shell is cylindrical and contains the main magnet and the secondary magnets.

Abstract: An imaging 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 has negative refractive power. The third lens element with refractive power has both an object-side surface and an Image-side surface being aspheric. The fourth lens element with refractive power has both an object-side surface and an image-side surface being aspheric. The fifth lens element with refractive power has both an object-side surface and an image-side surface being aspheric. The sixth lens element with refractive power has both an object-side surface and an image-side surface being aspheric.

Abstract: An electronic device includes at least two image capturing units which face the same side. The at least two image capturing units include a first image capturing unit and a second image capturing unit. The first image capturing unit includes an optical image system and a first image sensor. The optical image system includes a first lens element and an image surface. The first image sensor is disposed on the image surface of the optical image system thereof and has a first resolution of at least 60 megapixels. The second image capturing unit includes an optical image system and a second image sensor. The optical image system includes a first lens element and an image surface. The second image sensor is disposed on the image surface of the optical image system thereof and has a second resolution of at least 40 megapixels.