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WO/2014/006841A1 |
[Problem] To achieve higher performance, higher magnification, wider angle, lower cost and the acquisition of more favorable images for a zoom lens. [Solution] A zoom lens comprises, in order from an object side, a positive first lens gr...
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WO/2014/007298A1 |
Provided is a low cost and small size zoom lens, which has excellent imaging performance while having an angle of view angle larger than 100°. The zoom lens comprises, arranged in order from an object side to an image plane side, a firs...
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WO/2014/006840A1 |
[Problem] To achieve higher performance, higher magnification, wider angle, lower cost and the acquisition of more favorable images for a zoom lens. [Solution] A zoom lens comprises, in order from an object side, a positive first lens gr...
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WO/2013/191296A1 |
Provided is a zoom lens which exhibits a reduction in size, increased magnification, and a reduction in variation of angle of view during zooming, and which is capable of easily achieving an increased focusing speed, said zoom lens being...
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WO/2013/190035A1 |
An optical device (1) including a fixed focus camera having a predetermined depth of field with an optical axis (55), wherein the optical device (1) comprises a diaphragm (5) positioned in the optical axis (55) of the camera and comprisi...
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WO/2013/191295A1 |
Provided are: a zoom lens which exhibits a large variable-power ratio, an increased degree of freedom with respect to aberration correction, and which has been achieved having a sufficient reduction in size in the optical axis direction;...
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WO/2013/187000A1 |
[Problem] To produce a zoom lens in which compactness has been maintained while increasing the magnification to 100X or more and widening the angle. [Solution] This zoom lens comprises, in order from the object side, a positive first len...
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WO/2013/186999A1 |
[Problem] To produce a zoom lens in which compactness has been maintained while increasing the magnification to 100X or more and widening the angle, and achieving higher performance throughout the whole zoom range. [Solution] This zoom l...
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WO/2013/183787A1 |
The purpose of the present invention is to provide a compact zoom lens capable of acquiring high imaging performance even with high magnification. The zoom lens comprises, sequentially from an object, a first lens group with positive pow...
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WO/2013/179582A1 |
The present invention properly corrects aberrations in magnifying projection optics and produces a wide angle of view while reducing the cost and form factor of said magnifying projection optics by using a simple group design with a low ...
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WO/2013/175722A1 |
[Problem] To provide a compact zoom lens which is optimal for an interchangeable lens for a mirror-less camera. [Solution] A zoom lens comprising, in order from the object side, a first lens group (G1) which has negative refractive power...
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WO/2013/171995A1 |
[Problem] To devise a variable magnification optical system for projection which, whilst maintaining telecentricity on the reduction side, has a simple 2-group configuration and is compact, lightweight and inexpensive, with good optical ...
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WO/2013/161995A1 |
Provided is a zoom lens that has a light-beam incident angle appropriate for an image-capturing element while allowing compactness in the thickness direction. The zoom lens comprises, in order from the object side, a first lens group hav...
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WO/2013/161197A1 |
In the present invention, the following are provided in order, from the object side: a first lens group (G1) having a positive refractive power; a second lens group (G2) having a negative refractive power; and a third lens group (G3) hav...
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WO/2013/157658A1 |
Provided is a zoom lens that has a four-lens configuration and is capable of having a viewing angle of larger than 180°. Provided is an infrared zoom lens that has a long back focus. The present invention comprises a first lens group th...
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WO/2013/157607A1 |
A zoom lens (10A) comprises: a first lens unit (12) constituted by either SLM or VFL; a second lens unit (14) optically connected between the first lens unit and a focal plane (F) and constituted by either SLM or VFL; and a control unit ...
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WO/2013/157248A1 |
[Problem] To provide a variable magnification optical system which has a variable magnification of approximately 3X, including wide-angle to telephoto regions, which can be constituted inexpensively and in a compact manner, and which ass...
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WO/2013/154122A1 |
Provided are: a teleconverter lens that is sufficiently thin in the thickness direction of an imaging device even while having a conversion rate of at least 3; and an imaging optical system. A light beam entering the teleconverter lens (...
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WO/2013/153793A1 |
[Problem] To provide a zoom lens capable of maintaining a constant F-number during zooming and achieving weight reduction and high performance. [Solution] The zoom lens comprises in order from the object side : a first lens group (G1) th...
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WO/2013/151153A1 |
Provided are a compact wide-angle image-capturing lens having high variable power, an image-capturing lens unit incorporating the lens, and an image-capturing device. The image-capturing lens comprises, in order from the object side, a p...
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WO/2013/150757A1 |
[Problem] To enable a reduction in size and costs for a zoom lens for projection, whilst also enabling excellent aberration correction. [Solution] A zoom lens for projection in which power variation is carried out by moving three to four...
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WO/2013/145551A1 |
[Problem] To implement a magnification optical assembly which, while preserving good performance, is bright even at a telephoto end. [Solution] A magnification optical assembly is formed, in order from the objective side, from a first le...
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WO/2013/146758A1 |
An optical zoom system includes, from the object side along an optical axis, a first lens group with a positive power, a second lens group with a negative power, a third lens group with a positive power, and a fourth lens group with a po...
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WO/2013/136688A1 |
[Problem] In a zoom lens for projection, the reduction side has a telecentric configuration, and a small F number, a wide field of view, a high zoom ratio, and excellent optical performance are all achieved while inhibiting the size of t...
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WO/2013/136692A1 |
This zoom lens system has at least five lens groups each of which is constituted of at least one lens element. In this zoom lens system, in order from the object side to the image side are a first lens group having positive power and a s...
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WO/2013/133053A1 |
Provided are a teleconverter lens and an imaging optical system which are adequately thin in the thickness direction of an imaging device while having a conversion rate of 3 or greater. A luminous flux incident on a teleconverter lens (C...
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WO/2013/129221A1 |
Provided is a corrective optical system capable of correcting aberrations when attached to an objective lens, as well as an attachment, a waterproof lens port, a waterproof camera case, an optical system, and a method for manufacturing a...
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WO/2013/129274A1 |
Provided are: a converter lens which is sufficiently thin in the thickness direction of the camera, while maintaining a variable-power ratio of approximately 3x; and an imaging optical system. A converter lens (CL) is designed so as to c...
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WO/2013/128856A1 |
This zoom optical system is formed from, arranged in order from the object side, a first lens group having negative refractive power and other lens groups, and when magnification is varied, the spacing between each of the lens groups cha...
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WO/2013/129490A1 |
Provided are a zooming optical system, an optical device, and a method for manufacturing a zooming optical system, the zooming optical system being small-sized and having, in order along the optical axis from the object, a first lens gro...
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WO/2013/129487A1 |
Provided is a variable-power optical system having, in order from the object side, a first lens group (G1) having a positive refractive power, a second lens group (G2) having a negative refractive power, a third lens group (G3) having a ...
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WO/2013/128855A1 |
The present invention has, arranged in order from the object side along the optical axis: a first lens group (G1) having negative refractive power; a second lens group (G2) having positive refractive power; and a third lens group (G3) ha...
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WO/2013/125603A1 |
The objective is to provide a zoom lens that achieves compactness in the thickness direction and satisfactorily corrects various aberrations, an imaging device using the lens, and a portable terminal. A zoom lens (10) forms an image of t...
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WO/2013/118471A1 |
[Problem] To satisfactorily correct the displacement of the point of focus due to temperature variations in an optical system for projection, and to maintain the excellent optical properties of the system, even after correction, without ...
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WO/2013/114515A1 |
A zoom lens system is provided with: a positively powered first lens group which comprises three or more lens elements; a negatively powered second lens group; a positively powered third lens group; a negatively powered fourth lens group...
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WO/2013/111221A1 |
Provided is a zoom lens, comprising a first lens group (G1) having a positive index of refraction, a second lens group (G2) having a negative index of refraction, a third lens group (G3) having a positive index of refraction, and a fourt...
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WO/2013/111222A1 |
A zoom lens comprises, in order from the objective side along the optical axis, a first lens group (G1) having a positive index of refraction, a second lens group (G2) having a negative index of refraction, a third lens group (G3) having...
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WO/2013/111539A1 |
A zoom lens comprises a first lens group (G1) which has positive refractive power, a second lens group (G2) which has negative refractive power, a third lens group (G3) which has positive refractive power, and a fourth lens group (G4) wh...
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WO/2013/111602A1 |
A zoom lens system is provided with, in order from the object side to the image side, at least a first lens group having positive power, and a second lens group having negative power, increases the distance between the first lens group a...
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WO/2013/108622A1 |
A zoom lens for projection which involves reduced costs, has a compact structure using few lenses, and exhibits excellent aberration correction. The lens comprises a negative first lens group (G1) and a positive second lens group (G2), i...
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WO/2013/105189A1 |
A zoom lens system that is provided with a negative-power first lens group, a positive-power second lens group, and a positive-power third lens group, and varies power by moving the three or more lens groups along an optical axis when zo...
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WO/2013/104851A1 |
This optical system comprises: a device (106) for generating a plane light wave, called a collimated light wave (OLcol); and a device (114) for deviating the collimated light wave so as to provide a light wave, called a test light wave (...
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WO/2013/105190A1 |
A zoom lens system that: has a plurality of lens groups configured from one or more lens elements; is provided with two or more aperture stops; has one or more lens elements positioned between the two or more aperture stops; and is chara...
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WO/2013/099210A1 |
[Problem] To provide a high-performance zoom lens which has a high variable-power ratio of over 12, is small-sized, and has a long back focus. [Solution] In order from the object side are: a positive refractive power first lens group (G1...
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WO/2013/094096A1 |
A zoom lens system comprising, in order from the object side to the image side, a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power, and a fourth lens group ...
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WO/2013/084495A1 |
[Problem] To achieve, in a zoom lens, high optical performance that achieves a wide-angle, a small F number, and reduction of the total length of the zoom lens. [Solution] Provided is a zoom lens comprising, in order from an object side,...
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WO/2013/084494A1 |
[Problem] In a zoom lens, to obtain high optical performance, achieving shortening of the overall length of the zoom lens as well as achieving a wide angle and small Fno. [Solution] A zoom lens comprises: in order from the object side, a...
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WO/2013/076931A1 |
[Problem] To allow a 6-lens-group configuration zoom lens for projection to favorably correct various aberrations after securing a sufficient brightness and a large variable magnification ratio. [Solution] This zoom lens for projection c...
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WO/2013/065391A1 |
A variable-power optical system in which the cross-section perpendicular to the imaging surface, parallel to the minor-axis direction of the imaging surface, and including the optical axis is a first cross-section, and the cross-section ...
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WO/2013/065299A1 |
[Problem] To design a four-group zoom lens so as to minimize the change in angle of view when zooming and also achieve a sufficiently small form factor, sufficiently low weight, and sufficiently high performance. [Solution] This zoom len...
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