Konica Minolta, Inc.

Konica Minolta Opto, Inc.

Konica Minolta Advanced Layers, Inc.

Shoji Kogo

Ryouta Ishikawa

Hiroshi Sato

Susumu Yamaguchi

Masae Sato

Yuuichi Atarashi

Yasushi Yamamoto

Yuichi Atarashi

Kenji Konno

Nobuyoshi Mori

Motohiro Asano

Jun Takayama

Eigo Sano

Hiroyuki Matsumoto

Hiroshi Hatano

Makoto Jin

Katsuya Yagi

Daisuke Tanahashi

Kana Inoue

A scanning optical system, includes a mirror unit having a first mirror surface and a second mirror surface which incline to a rotation axis; and a light projecting system having a light source. A light flux emitted from the light source is reflected on the first mirror surface of the mirror unit, thereafter, reflected on the second mirror surface, and then, projected so as to scan in a main scanning direction onto an object in accordance with rotation of the mirror unit. The light flux emitted from the second mirror surface becomes a plurality of spot lights on the object side, and the plurality of spot lights are arranged along a direction intersecting with the main scanning direction.

Scanning optical system and light projecting and receiving apparatus

A scanning optical system, includes a mirror unit equipped with a first mirror surface and a second mirror surface each of which inclines to a rotation axis; and a light projecting system which includes at least one light source to emit a light flux toward the first mirror surface. A light flux emitted from the light source is reflected on the first mirror surface of the mirror unit, thereafter, reflected on the second mirror surface, and then, projected so as to scan in a main scanning direction onto an object in accordance with rotation of the mirror unit, and in a case where a direction included in a main scanning plane is set to 0 degree, the light flux reflected on the second mirror surface is polarized in a range within an angle of &#xb1;30 degrees to the main scanning plane.

Scanning optical system and radar

A scanning optical system, includes a mirror unit having a first mirror surface and a second mirror surface which incline to a rotation axis; and a light projecting system having a light source. A light flux emitted from the light source is reflected on the first mirror surface of the mirror unit, thereafter, reflected on the second mirror surface, and then, projected so as to scan in a main scanning direction onto an object in accordance with rotation of the mirror unit. In the case where a virtual plane is set in a range including the object, a light flux reflected on the second mirror surface has, upon entering the virtual plane, a cross sectional shape in which a length in a direction orthogonal to the main scanning direction is longer than a length in the main scanning direction.

A scanning optical system, includes a mirror unit equipped with a first mirror surface and a second mirror surface each of which inclines to a rotation axis; and a light projecting system which includes at least one light source to emit a light flux toward the first mirror surface. A light flux emitted from the light source is reflected on the first mirror surface of the mirror unit, thereafter, reflected on the second mirror surface, and then, projected so as to scan in a main scanning direction onto an object in accordance with rotation of the mirror unit, and the light flux reflected on the second mirror surface is polarized in a range within an angle of &#xb1;30 degrees to a direction perpendicular to the main scanning direction on the object side.

A compound eye optical system forms a plurality of images with different fields of view for connecting the plurality of images with the different fields of view and outputting one composite image. The system includes: a plurality of individual eye optical systems forming the plurality of images with different fields of view on an imaging surface; and an overall optical system forming an image with a field of view incorporating the entire fields of view obtained by the plurality of individual eye optical systems on the imaging surface, wherein the individual eye optical systems and the overall optical system are configured by a lens array plate having a plurality of lenses integrally formed.

Compound eye optical system and imaging device using the same

Disclosed is a zoom lens that forms an optical image of an object on a light receiving surface of an imaging element converting the optical image to an electrical signal, having the diagonal length of 2Ymax, is constituted by a positive first group, a negative second group, a negative third group, an aperture, and a rear group having positive power as a whole, in order from an object side, and satisfies a conditional expression 1.5&#x3c;frw/Ymax&#x3c;2.1 (frw denotes the combined focal length of the rear group on a wide end, and Ymax denotes the maximum image height).

Zoom lens, imaging optical device, and digital device

A large aperture zoom optical system and an image pickup apparatus have a five-lens-group arrangement of positive-negative-positive-negative-positive refractive powers. At the time of zooming, the fifth lens group is fixed, and at least the second lens group, the third lens group and the fourth lens group are moved. The third lens group for use in focusing is composed of a single lens element.

Large aperture zoom optical system and image pickup apparatus

A scanning optical system includes: a light source for emitting a light flux with a wavelength &#x3bb;; a polygon mirror comprising a plurality of reflection surfaces for deflecting the light flux emitted from the light source for scanning the scanning surface; a light-converging lens group in a two-element structure. The light-converging lens group is arranged between the polygon mirror and the scanning surface and forms a light spot on the scanning surface. In the scanning optical system, the wavelength &#x3bb; is not larger than 600 nm, and the scanning optical system satisfies a conditional expression relating to a number of the reflection surfaces of the polygon mirror, a scanning width of the scanning optical system, and a focal length of the light-converging lens group in a main scanning direction.

Scanning optical system, optical scanning apparatus and image forming apparatus

In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups arranged in the lens system includes a refractive power variable element of a transmission type which has a compensation function to correct focus movement caused by zooming and a focus function to correct focus movement caused by a variation in inter-object distance. The refractive power variable element is a liquid optical element including a first liquid having a conductivity or a polarity and a second liquid which is not mixed with the first liquid, the first liquid and the second liquid being enclosed in a container fluid-tight so as to define an interface therebetween having a predetermined shape, the liquid optical element being arranged such that a refractive power thereof is adjusted by changing a curvature of the interface.

Zoom lens

A zoom lens includes: a first lens group with a positive refractive power; a second lens group with a negative refractive power; a third lens group with a positive refractive power; a fourth lens group with a positive refractive power, which are arranged in this order from an object side of the zoom lens. The first lens group and the third lens group are positioned statically. The second lens group is moved for zooming the zoom lens. The fourth lens group is moved for correcting a focus movement caused by the zooming and is further moved for focusing the zoom lens. The second lens group is provided with: a negative lens in a meniscus shape; a negative lens; a positive lens; and a negative lens, which are arranged in this order from an objective side of the zoom lens.

Zoom lens and image pickup apparatus

An image pickup apparatus comprises a substrate; an image pickup element to convert a converged light flux to electronic signals; an image-taking optical element positioned so as to converge a light flux from an object onto the image pickup element; a light shielding member to house the image pickup element and the image-taking optical element; a controlling device to control an output of the electronic signals and controlling the image pickup element; and a refracting power-variable optical element.

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Chiyoda-ku, Japan

Shoji Kogo