摘要:
The present invention is a multi-gas sensor and a method for fabricating the multi-gas sensor.The multi-gas sensor comprises a substrate, an epitaxial layer, a metal oxide layer, a first metal layer, a second metal layer and multiple third metal layers.The method for fabricating the multi-gas sensor comprises steps of forming an epitaxial layer on a substrate; etching the epitaxial layer to form a first epitaxial structure and a second epitaxial structure a fixed distance from the first epitaxial structure; forming a metal oxide layer on the first epitaxial structure; forming a first metal layer that has at least two metal layers on the second epitaxial structure; forming a second metal layer a fixed distance from the first metal layer on the second epitaxial structure; forming third metal layers respectively on the metal oxide layer, the first metal layer and the second metal layer.
摘要:
The present invention is a multi-gas sensor and a method for fabricating the multi-gas sensor.The multi-gas sensor comprises a substrate, an epitaxial layer, a metal oxide layer, a first metal layer, a second metal layer and multiple third metal layers.The method for fabricating the multi-gas sensor comprises steps of forming an epitaxial layer on a substrate; etching the epitaxial layer to form a first epitaxial structure and a second epitaxial structure a fixed distance from the first epitaxial structure; forming a metal oxide layer on the first epitaxial structure; forming a first metal layer that has at least two metal layers on the second epitaxial structure; forming a second metal layer a fixed distance from the first metal layer on the second epitaxial structure; forming third metal layers respectively on the metal oxide layer, the first metal layer and the second metal layer.
摘要:
A gas sensor includes a substrate; a seed layer positioned on the substrate; a zinc-oxide nanostructure formed on the seed layer; a metal nanoparticle formed on the zinc-oxide nanostructure; a first electrode positioned on the zinc-oxide nanostructure; and a second electrode positioned on the zinc-oxide nanostructure apart from the first electrode to electrically connect to the first electrode.
摘要:
This invention provides an image capturing lens system comprising three non-cemented lens elements with refractive power: a first lens element with positive refractive power having a convex object-side surface, and both the object-side and image-side surfaces being aspheric; a plastic second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, and both the object-side and image-side surfaces being aspheric; and a plastic third lens element having a convex object-side surface and a concave image-side surface, and both the object-side and image-side surfaces being aspheric. By such arrangement, the space of the image capturing lens system can be allocated much more properly and thereby an image capturing lens system with shorter total track length can be obtained while retaining superior image quality.
摘要:
An image lens system includes, in order from an object side to an image side, a first lens element with negative refractive power including a concave image-side surface; a second lens element with positive refractive power including a convex object-side surface; a third lens element with negative refractive power including an object-side surface and a concave image-side surface, the object-side surface and the image-side surface being aspheric; a fourth lens element with positive refractive power including a convex object-side surface and a convex image-side surface; and a fifth lens element with negative refractive power including a convex object-side surface and a concave image-side surface, the object-side surface and the image-side surface being aspheric, the fifth lens element having at least one inflection point.
摘要:
An 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 and a fifth 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 has positive refractive power. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface of the fourth lens element is aspheric. The fifth lens element with refractive power has a concave image-side surface, wherein at least one of an object-side surface and the image-side surface of the fifth lens element is aspheric, and the fifth lens element has at least one inflection point on the image-side surface thereof.
摘要:
An optical imaging system includes, in order from an object side to an image side, a first lens element with a positive refractive power, a second lens element, a third lens element, a fourth lens element with a positive refractive power having an aspheric surface and a fifth lens element with a negative refractive power. An image-side surface of the fifth lens element is concave, and at least one of two surfaces of the fifth lens element is aspheric. The relationship between a sum of thicknesses of all lens elements with refractive powers on an optical axis and a distance on the optical axis between an object-side surface of the first lens element and the image-side surface of the fifth lens element in the optical imaging system can effectively reduce the total length as well as the sensitivity of the optical imaging system while gaining superior resolution.
摘要:
An image 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 negative refractive power. The third lens element with refractive power is made of plastic material, and has at least one surface being aspheric. The fourth lens element with refractive power is made of plastic material, and has a concave object-side surface and a convex image-side surface, wherein at least one surface of the fourth lens element is aspheric. The fifth lens element with positive refractive power is made of plastic material, and has a convex object-side surface and a convex image-side surface, wherein at least one surface of the fifth lens element is aspheric.
摘要:
This invention provides an imaging lens system in order from an object side to an image side comprising: a first lens element with positive refractive power; a plastic second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, both surfaces thereof being aspheric; and a plastic third lens element with negative refractive power having a convex object-side surface and a concave image-side surface, both surfaces thereof being aspheric, and at least one inflection point is formed on at least one of the object-side and image-side surfaces thereof. Additionally, the central thickness of the second lens element is controlled favorably for the efficient spatial arrangement of the lens assembly and the simpler individual lens production while maintaining suitable thickness of the second lens element, thereby assuring image quality and improving yield rate of the product.