Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 401 - 450 out of 17,208

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 (...  
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...  
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...  
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 ...  
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,...  
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...  
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...  
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 ...  
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...  
WO/2013/065972A1
The present invention relates to an imaging lens, the imaging lens including, in an ordered way from an object side, a first movable lens having a positive (+) refractive power, a second lens having a negative (-) refractive power, a thi...  
WO/2013/065251A1
A zoom-lens system provided with a first lens group having positive power, a second lens group having negative power, a third lens group having positive power, and a fourth lens group, in that order from the object side to the image side...  
WO/2013/065252A1
A zoom-lens system provided with a first lens group having positive power, a second lens group having negative power, a third lens group having positive power, and a fourth lens group, in that order from the object side to the image side...  
WO/2013/065250A1
A zoom-lens system provided with a first lens group having positive optical power, a second lens group having negative optical power, and a third lens group having positive optical power, in that order from the object side to the image s...  
WO/2013/065288A1
[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...  
WO/2013/061536A1
In a zoom lens for projection, the reduction side is made telecentric and has a small size, high versatility and excellent projection performance, while having a high zoom ratio and small F number. In the projection side zoom lens, there...  
WO/2013/061535A1
The present invention provides a zoom lens for projection, wherein the reduction side is telecentric, and various aberrations are satisfactorily corrected through the entire zoom range while compactness, a small F number, and a high zoom...  
WO/2013/057909A1
 In order to provide a zoom lens for projection which exhibits excellent correction of field curvature due to focusing, even if the angle of view is widened, essentially, a zoom lens for projection is configured from: a first lens gr...  
WO/2013/057910A1
[Problem] To provide a zoom lens for projection, having a five-lens group structure, which exhibits excellent aberration correction even if the angle of view is widened. [Solution] Essentially, a first lens group (G1) having negative ref...  
WO/2013/052014A1
The present application provides a micromechanical (MEMS) based zoom lens system, for use in miniature device applications, such as miniature electronic imaging devices. The MEMS-based zoom lens system comprises at least four optical ele...  
WO/2013/045705A1
The invention relates to a display device, in particular for motor vehicle, comprising - a projection module and - an optical path, the optical path comprising at least one reflection element, the reflection element being designed to ref...  
WO/2013/044994A1
A method and device is described for compensating ambient temperature dependent magnification and focus change of a zoom lens system, whereby an ambient temperature compensation structure cooperates with a rotational ring and an optical-...  
WO/2012/148215A3
A camera lens module in which an optical system is configured to include five sheets of lenses is provided. In the camera lens module, first, second, third, fourth and fifth lenses are sequentially arranged from an object side, and the f...  
WO/2013/038610A1
[Problem] A variable magnification optical system, wherein the variable magnification optical system maintains a small scale and large aperture ratio, can be used from the visible region to the near-infrared region, and has high optical ...  
WO/2013/038614A1
[Problem] To obtain a zoom lens that is more compact, lighter in weight, less susceptible to fluctuation in the angle of view during focusing, and capable of higher performance. [Solution] A zoom lens (1) comprises, in the stated order f...  
WO/2013/031185A1
 A zoom lens having a two-lens group structure, which has a low F value and enables excellent aberration correction. The zoom lens is configured by arranging a first lens group (G1) having a negative refractive power and a second len...  
WO/2013/031214A1
[Problem] To satisfactorily correct chromatic differences of magnification in a variable magnification optical system when an extender is inserted. [Solution] This variable magnification optical system comprises: a relay lens group (fift...  
WO/2013/031187A1
[Problem] To satisfactorily correct distortion aberrations and various other aberrations in a more compact zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1) having a negative refractive pow...  
WO/2013/031189A1
[Problem] To satisfactorily correct distortion aberrations and various other aberrations, in a zoom lens having a two-lens configuration. {>[Solution] A zoom lens: having a first lens group (G1) having a negative refractive power and a s...  
WO/2013/031186A1
[Problem] To enable satisfactory correction of distortion aberrations and various other aberrations in a more compact zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1) having a negative ref...  
WO/2013/031110A1
[Problem] To enable satisfactory correction of distortion aberrations and readily achieve a wider angle while suppressing increase in various aberrations, in a more compact zoom lens having a two-lens configuration. [Solution] A zoom len...  
WO/2013/031182A1
[Problem] To provide a zoom lens configured from two lens groups that is reduced in size and that satisfactorily corrects different types of aberration. [Solution] A zoom lens comprising, arranged in order from the object side, a first l...  
WO/2013/031203A1
[Problem] To achieve high optical performance in a variable magnification optical system while achieving small size and light weight. [Solution] This variable magnification optical system comprises, along the optical axis (Z) and in orde...  
WO/2013/031177A1
[Problem] To reduce the F value and enable satisfactory correction of distortion aberrations and other aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1) having a negative ...  
WO/2013/031109A1
[Problem] To enable satisfactory correction of distortion aberrations and readily achieve a wider angle while suppressing increase in various aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a f...  
WO/2013/031178A1
[Problem] To enable satisfactory correction of distortion aberrations and various other aberrations, and readily achieve a wider angle in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1)...  
WO/2013/031184A1
Provided is a zoom lens configured from two lens groups that has a reduced f-number and that satisfactorily corrects different types of aberration. The zoom lens comprises, arranged in order from the object side, a first lens group (G1) ...  
WO/2013/031181A1
 A zoom lens having a two-lens group structure, which is compact and exhibits excellent aberration correction. The zoom lens is configured by arranging a first lens group (G1) having a negative refractive power and a second lens grou...  
WO/2013/031108A1
[Problem] To enable satisfactory correction of distortion aberrations and readily achieve a wider angle while suppressing increase in various aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a f...  
WO/2013/031205A1
[Problem] To achieve high optical performance in a variable magnification optical system while achieving small size and light weight. [Solution] This variable magnification optical system comprises, along the optical axis (Z) and in orde...  
WO/2013/031180A1
[Problem] To reduce the F value and enable satisfactory correction of various aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1) having a negative refractive power and a se...  
WO/2013/031179A1
[Problem] To make it possible to achieve reduced size and satisfactory correction of aberrations in a zoom lens having a two-group configuration. [Solution] A zoom lens in which a first lens group (G1) having a negative refractive power ...  
WO/2013/031176A1
[Problem] To enable satisfactory correction of distortion aberrations and readily achieve a wider angle while suppressing increase in various aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a f...  
WO/2013/031188A1
[Problem] To reduce the F value and satisfactorily correct distortion aberrations and other aberrations, in a zoom lens having a two-lens configuration. [Solution] A zoom lens: having a first lens group (G1) having negative refractive po...  

Matches 401 - 450 out of 17,208