Minolta Company, Ltd.

Minolta Camera Kabushiki Kaisha

Konica Minolta Camera, Inc.

Minolta C., Ltd.

Hitoshi Hagimori

Kazuhiko Ishimaru

Genta Yagyu

Yasushi Yamamoto

Tetsuo Kohno

Minoru Kuwana

Hideki Nagata

Kenji Konno

Junji Hashimura

Masashi Isono

Hiromu Mukai

Takashi Kondo

Hiroyuki Matsumoto

Tsutomu Honda

Tetsuro Kanbara

Motohiro Nakanishi

Shinichi Ban

Shinichi Suzuki

Mitsuaki Shimo

Kaori Kojima

Yoshifumi Harada

Haruki Yoshida

Hiroshi Sugiyama

An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom lens system to an electric signal. The zoom lens system has from an object side: a first lens unit being overall negative and including a reflecting surface that bends a luminous flux substantially 90 degrees; and a second lens unit disposed with a variable air distance from the first lens unit, and having a negative optical power.

Imaging device and digital camera using the imaging device

A zoom lens system for directing an optical image on an electric image sensor that includes a first lens unit disposed on a most object side and having a negative optical power, a second lens unit having a positive optical power, and a third lens unit including a most image side lens unit having at least a positive lens element and a negative lens element, wherein the following condition is satisfied:3&#x3c;|where fl is a focal length of the most image side lens unit, and fw is a focal length of the zoom lens system in a shortest focal length condition.

Zoom lens system and imaging device having the same

A zoom lens device has a zoom lens system having a plurality of lens units; and an image sensor converting an optical image formed by the zoom lens system, into electric image data. Lens surfaces constituting the zoom lens system are all refracting surfaces. Zooming is performed by varying the distances between the lens units. The following conditions are satisfied:3.1&#x2266;where fw is the focal length of the zoom lens system in the shortest focal length condition, and ft is the focal length of the zoom lens system in the longest focal length condition.

Zoom lens device

A zoom lens device has a zoom lens system having a plurality of lens units; and an image sensor converting an optical image formed by the zoom lens system, into electric image data. The zoom lens system has, from the object side, a first lens unit disposed on the most object side and consisting of one negative lens element; and a second lens unit being overall positive power and including a positive lens element and a negative lens element independent of each other. Lens surfaces constituting the zoom lens system are all refracting surfaces. Zooming is performed by varying the distances between the lens units. The predetermined conditions are satisfied by the zoom lens system.

An imaging lens device has an imaging lens system that forms an optical image and an image sensing device that converts the optical image formed by the imaging lens system into an electronic signal. The imaging lens system includes two lens elements each made of a homogeneous material and having a positive optical power, and fulfills the following condition: 1.25&#x3c;L/f&#x3c;2.00, where L is the distance from the most object side lens surface to the image plane, and f is the overall focal length of the lens system.

Imaging lens device

A zoom lens device has a zoom lens system having a plurality of lens units; and an image sensor converting an optical image formed by the zoom lens system, into electric image data. The zoom lens system has a first lens unit disposed on the most object side and consisting of a single negative lens element, a second lens unit having a positive optical power; and a diaphragm disposed on the object or the image side of the second lens unit, or in the second lens unit. Zooming is performed by varying the distances between the lens units. Focus adjustment by varying the object distance is performed by moving along the optical axis a positive lens unit or a single lens element disposed in a position on the image side of the diaphragm and not included in the most image side lens unit.

An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom lens system to an electric signal. The zoom lens system comprises, from an object side. A first lens unit being overall negative and including a reflecting surface that bends a luminous flux substantially 90 degrees; and a second lens unit disposed with a variable air distance from the first lens unit, and having a negative optical power.

An imaging device has a zoom lens system comprising a plurality of lens units and forming an optical image of an object so as to be continuously and optically zoomable by varying a distance between the lens units; and an image sensing element converting the optical image formed by the zoom lens system into an electric signal, wherein the zoom lens system comprises from the object side: a first lens unit having positive optical power as a whole and including a reflecting surface that bends a luminous flux substantially 90 degrees; a second lens unit having negative optical power and disposed with a variable air space from the first lens unit; a third lens unit having positive optical power and disposed with a variable air space from the second lens unit; a fourth lens unit having positive optical power and disposed with a variable air space from the third lens unit; and a fifth lens unit disposed with a variable air space from the fourth lens unit, and wherein zooming is optically performed by varying the air spaces between the lens units.

An image is displayed on a monitor after recognizing, based on 3-D data obtained by measuring an object in three dimensions, an error region which is an unmeasurable portion of the object in a measured range. A partial image is extracted corresponding to the error region from a 2-D image obtained by imaging the object. Then the partial image is highlighted on the display. This allows the operator to elect to use, or not, the image in forming a 3-D model of the imaged object, e.g., the face of the operator.

Monitor display apparatus

An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom lens system to an electric signal. The zoom lens system has from an object side, a first lens unit being overall negative and including a reflecting surface that bends a luminous flux substantially 90 degrees; and a second lens unit disposed with a variable air distance from the first lens unit, and having an optical power, and wherein at least one lens element made of resin is included in the entire lens system.

A optical device has a zoom lens system that is comprised of a plurality of lens units and that achieves zooming by varying unit-to-unit distances and an image sensor that converts an optical image formed by the zoom lens system into an electrical signal. The zoom lens system is comprised of, from the object side, a first lens unit having a negative optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. The zoom lens system achieves zooming by varying the distances between the first to fourth lens units.

Taking lens device

A portable telephone is provided with a body and a camera unit . In the camera unit , photography is switched to macro photography by pressing a macro button on the body . In this way, the convenience of the portable telephone is improved because an object in the very near distance can be photographed. The camera unit is constructed so as to be freely rotatable in a direction Rc on a shaft of a connector C. Accordingly, a user can freely modify the photography direction of the camera unit , thereby increasing the freedom of photography and providing greater improvement in the convenience of the portable terminal.

Portable terminal and drive method for photographic optical system

A communication device having an image transmission function such as a video phone or a camera-equipped cellular phone. The image transmission function is capable of capturing an object image using an optimal size.

Communication device having an image transmission function

Taking lens device has zoom lens system comprised of plurality of lens units and achieves zooming by varying unit-to-unit distances and image sensor that converts optical image formed by zoom lens system into electrical signal. Zoom lens system comprised of, from the object side, first lens unit having negative optical power, second lens unit having positive optical power, and third lens unit having positive optical power. First, second, and third lens units are each comprised of one lens element, and at least the first and second lens units are moved along the optical axis during zooming. Following conditional formula is fulfilled: 0.2<tW /fW<1.2, where tW represents optical path length from the most image-side lens surface in second lens unit to the most object-side lens surface in third lens unit at wide-angle end, and fW represents focal length of the entire zoom lens system at wide-angle end.

A taking lens device has a zoom lens system, including a plurality of lens units, for forming an optical image of an object with variable magnification achieved by varying the distances between the lens units, and an image sensor for converting the optical image formed by the zoom lens system into an electric signal. The zoom lens system includes, from the object side to the image side a first lens unit that has a negative optical power, that is composed solely of a single negative lens element having a sharper curvature on the image side than on the object side thereof, and that is moved along the optical axis during zooming, and a second lens unit that is disposed with an aerial distance secured between itself and the first lens unit, that has a positive optical power, and that is moved along the optical axis during zooming. Moreover, the following conditional formulae are fulfilled: 0.3<t1/Y&prime;<1.5 and 1.4<&verbar;f1/fw&verbar;<5, where t1 represents the axial thickness (surface-to-surface distance along the optical axis) of the negative lens element constituting the first lens unit, Y&prime; represents the maximum image height shootable, f1 represents the focal length of the first lens unit, and fw represents the focal length of the entire zoom lens system at the wide-angle end.

Growing community of inventors

Ikoma-gun, Japan

Hitoshi Hagimori