Patent
Imaging lens and imaging device using same
Takumi Iba,Masatoshi Yamashita +1 more
TLDR
An imaging lens as mentioned in this paper consists of a first lens having a positive power and convex surfaces on both sides; an aperture diaphragm; a second lens being a meniscus lens with a negative power and a convex surface on the object side; a third lens being an inverted cone lens with concave surfaces on the image surface.Abstract:
An imaging lens includes, arranged in sequence from the object side to the imaging surface side, a first lens having a positive power and convex surfaces on both sides; an aperture diaphragm; a second lens being a meniscus lens having a negative power and a convex surface on the object side; a third lens being a meniscus lens having a positive power and a concave surface on the object side; and a fourth lens having a negative power and concave surfaces on both sides. With this structure, the imaging lens is well corrected for various aberrations in spite of being compact in the lens radial direction and thin in the optical axis direction.read more
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Patent
Optical image capturing system
Nai Yuan Tang,Yeong Ming Chang +1 more
TL;DR: In this article, a six-piece optical lens for capturing image and a six piece optical module for capturing images is presented. But the optical module is not aspheric. And the optical lens can increase aperture value and improve the imagining quality for use in compact cameras.
Patent
Three-piece infrared single wavelength lens system
Fei-Hsin Tsai,Chun-Sheng Lee +1 more
TL;DR: In this article, a three-piece infrared single-wavelength lens system is presented, in order from the object side to the image side: a stop, a first lens element having a positive refractive power, a second lens element with a positive negative power, and a third lens element had a positive positive power.
Patent
Photographing optical lens assembly, imaging device and electronic device
Tung-Yi Hsieh,Wei-Yu Chen +1 more
TL;DR: In this paper, a photographing optical lens assembly includes, in order to form an object side to an image side, a first lens element, a second lens element and a third lens element.
Patent
Computational microscopes and methods for generating an image under different illumination conditions
TL;DR: In this article, a method for constructing an image of a sample using a plurality of images acquired under multiple illumination conditions is described. But the method is limited to a single image.
References
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Patent
Imaging lens, imaging apparatus and personal digital assistant
Eigo Sano,永悟 佐野 +1 more
TL;DR: In this article, the authors proposed an imaging lens constituted of four lenses, whose aberrations are satisfactorily corrected though it is smaller in size than the imaging lens of the conventional type.
Patent
Single focal imaging lens and imaging apparatus having the same
TL;DR: In this paper, a single focal imaging lens with a diaphragm and negative optical power has been proposed, where the minimum value of the distance between an imaging face and the lens face of the imaging lens, which face is nearest to the imaging element, and fd is the focal distance of the entire system on a line d.
Patent
Imaging lens, imaging apparatus with the imaging lens, and portable terminal with the imaging apparatus
TL;DR: An imaging lens, an imaging apparatus, and a portable terminal that are small in size and can secure a wide angle of view and that are capable of properly correcting various aberrations and are compatible with an imaging element with a high pixel as mentioned in this paper.
Patent
Imaging lens and imaging device equipped with the same
Akira Nakamura,晃 中村 +1 more
TL;DR: In this article, the authors proposed an imaging lens which maintains excellent optical performance while making it sufficiently compact and light in weight, and also provide an imaging device equipped with the lens, where an aperture 2, a first lens 3, a second lens 4 having negative power, a third lens 5 having positive power and a fourth lens 6 as a biconcave lens are arranged in this order toward an image face side from an object side.
Patent
Imaging lens, camera module, and image pickup unit
Minoru Taniyama,実 谷山 +1 more
TL;DR: In this article, the authors proposed a camera module and an image pickup unit capable of obtaining imaging signals of high resolution by mounting an imaging lens, which includes a first lens G1 having positive power, a second lens G2 having negative power, and a third lens G3 making the face of an image side a convex face.