Topic
Thin lens
About: Thin lens is a research topic. Over the lifetime, 728 publications have been published within this topic receiving 11728 citations.
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01 Jan 1984
TL;DR: The analogue computer system proved its usefulness in the design and in studies of the characteristics of different accelerator installations over many years and is the ideal tool to demonstrate beam optics to students and accelerator operators.
Abstract: The analogue computer system proved its usefulness in the design and in studies of the characteristics of different accelerator installations over many years. The results of the calculations are in very good agreement with real accelerator data. The apparatus is the ideal tool to demonstrate beam optics to students and accelerator operators since the effect of a change of any of the parameters is immediately visible on the oscilloscope.
TL;DR: This analysis facilitates achieving an optimal thin lens layout during structural design of the diffractive lens with prespecified targets for primary chromatic aberrations.
Abstract: In this report, we present an analysis for the primary chromatic aberrations of a diffractive lens on a spherically curved substrate having nonunity refractive index. This analysis facilitates achieving an optimal thin lens layout during structural design of the diffractive lens with prespecified targets for primary chromatic aberrations. Sets of nomographs that provide ready estimates for these aberrations are also given.
Patent•
09 Jun 2004
TL;DR: In this paper, a focusing lens is made of general thin lens which is cut into four small blocks by adopting orthogonal symmetrical cutting mode, which is fixedly connected together to form optical fibre receptable.
Abstract: The present invention relates to a light source device capable of raising inplanted light energy. It includes a casing, in which the reflective bowl, light-emitting lamp, color filter and focusing lens are mounted successively. Their position relationship is as follows: the light emitted by light-emitting lamp is passed through reflective bowl and collected, and the light filtered by color filter is passed through focusing lens and focused, then inplanted into the optical fibre head positioned at focal point position of its focal plane. Said focusing lens is made of general thin lens which is cut into four small blocks by adopting orthogonal symmetrical cutting mode. The described focusing lens and a receptable body are fixedly connected together to form optical fibre receptable.
Patent•
01 Mar 2015
TL;DR: In this paper, an optical lens assembly for capturing images and an image capture device therewith is presented. But the assembly is not suitable for the use in the real world, as it requires the use of a total reflection prism along an optical axis, a first lens group having negative focal power, and a second lens group with positive focal power.
Abstract: The invention is an optical lens assembly for capturing images and an image capture device therewith. The optical lens assembly for capturing images includes, along an optical axis, a total reflection prism, a first lens group having negative focal power, wherein the first lens group comprises a lens having negative focal power, a second lens group having positive focal power, wherein the second lens group comprises at least one lens having an aspherical optical surface, a third lens group having positive focal power, wherein the third lens group comprises at least one lens having positive focal power and at least one lens having negative focal power, and a fourth lens group having positive focal power, wherein the fourth lens group comprises at least one lens having an aspherical optical surface. Thereby, the aberration can be improved and a thin lens module for capturing images can be achieved.
Patent•
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07 Sep 2012
TL;DR: In this paper, a thin lens module has a case, in which an optical lens set, an image sensor, a focusing driving device, two position indicators, a zooming driving devices, a shutter, and a shutter driving device are provided.
Abstract: A thin lens module has a case, in which an optical lens set, an image sensor, a focusing driving device, two position indicators, a zooming driving device, a shutter, and a shutter driving device are provided. An optical axis of the optical lens set has a first optical axis section and a second optical axis section, and the first optical axis section is perpendicular to an object side. The focusing driving device, the position indicators, and the shutter driving device respectively connects to joints for signal transmission, and these joints are provided on a side of the case parallel to the first optical axis section to achieve the thinning purpose.