Canon Kabushiki Kaisha

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Murata Manufacturing Co., Ltd.

Sony Magnescale Inc.

Hirofumi Yoshida

Hiroaki Nakai

Tsuyoshi Karino

Hiroshi Aoki

Yu Shiotani

Yukio Sakagawa

Shingo Oyagi

Ryuichi Ohno

Koshi Hatakeyama

Kenji Muto

Hiroshi Hasegawa

Takeshi Ogata

Takumi Hikichi

Norihiko Utsunomiya

Masanobu Wada

Akira Hiwata

Kentaro Shii

Tadayoshi Shoyama

Tomasz Bajraszewski

Maciej Szkulmowski

Daisuke Funakosi

Marek Różański

Shinya Tanaka

Hiroyuki Inoue

Tomoyuki Makihira

Nobuhito Suehira

Kazuhide Miyata

Toshikazu Nakamura

Ritsuya Tomita

Noboru Iida

Hiroshi Katayama

Tomoyuki Iwanaga

Akihito Uji

Yusuke Imai

Kazuo Nagaoka

Nagahisa Yoshimura

Akifumi Miyano

Yuki Shimozato

Kazuhiro Nojima

Yoshiki Takao

Keisuke Oyaizu

Isao Komine

Kei Murayama

Daisuke Funakoshi

Hayato Shioda

Susumu Hoshimi

Akifumi Hyodo

Marek Rozanski

A rotary compressorincludes a drive shafthaving an eccentric shaft, a pistonfitted onto the eccentric shaft, a cylinderthat receives the eccentrically rotating piston, an upper end plateand a lower end platethat close the upper and lower opening surfaces of the cylinder, a vanethat divides a space formed by the cylinder, the piston, the upper end plate, and the lower end plateinto a suction chamberand a compression chamber, a discharge spacethat is formed by causing the coverto close a recessed portionobtained by recessing a surface of either the upper end plateor the lower end plateon the opposite side to the cylinderand where discharge gas flows in from the compression chamberand directly flows out to the outside of the compressor, and spatial volume of the discharge spacehaving 10 times enclosed volume of the cylinder, thereby reducing noise and vibration due to discharge pulsation as well as improving efficiency and reliability and reducing cost.

Rotary compressor

An ophthalmic apparatus includes an inspection unit configured to inspect an eye to be inspected, a driving unit configured to drive the inspection unit, and a control unit configured to start control of the inspection unit and the driving unit based on an inspection protocol in response to a predetermined condition, the inspection protocol defining a series of control procedures for performing a plurality of inspections including an alignment adjustment for aligning the inspection unit with the eye to be inspected, wherein the control unit is configured to display results of the plurality of inspections and display information for accepting an instruction to retry a part of the plurality of inspections on a display unit.

Ophthalmic apparatus, method for controlling ophthalmic apparatus, and storage medium

A rotary compressor having two cylinders includes crankshaft having first eccentric portion and second eccentric portion connected to each other by connecting portion. The rotary compressor further includes two compressive elements that compress working fluid in cylinder as first piston inserted over first eccentric portion eccentrically rotates in accordance with rotation of crankshaft. Further, first piston inserted over first eccentric portion undergoes assembly by being inserted over first eccentric portion through second eccentric portion. Further, a releasing portion is provided at each of outer diameter portions of first eccentric portion and second eccentric portion.

Rotary compressor having two cylinders

Focus adjustment is enabled with respect to an object to be inspected even when an optical member for changing a field angle is inserted in order to change the field angle of an acquiring area of a tomographic image, and a clear tomographic image with a focus on the object to be inspected is acquired. In an optical tomographic imaging apparatus, an optical system includes a focus lens configured to focus a measuring light on the object to be inspected. The optical tomographic imaging apparatus includes a unit configured to compensate, when an optical member for changing a field angle is inserted between a scanning unit and the object to be inspected in order to change the field angle of an acquiring area of a tomographic image, a change in a focus position of the focus lens in association with the inserting.

Optical tomographic imaging apparatus, control method therefor, and program therefor

An optical coherence tomographic apparatus which obtains a tomographic image of an object based on light obtained by combining return light from the object irradiated with measurement light through a first lens and reference light corresponding to the measurement light, the apparatus comprises a scanning unit provided on an optical path of the measurement light and configured to scan the measurement light on the object; a second lens disposed between the scanning unit and the object; an optical path branching unit disposed between the first lens and the second lens and configured to make the optical path of the measurement light branch off to an observation optical path for observation of the object; a dividing unit that splits light emitted from a light source into the measurement light and the reference light; and a focus lens disposed between the dividing and scanning units.

Optical coherence tomographic apparatus

An optical tomographic imaging apparatus includes a first lens having a first focal length, a second lens having a second focal length longer that the first focal length, a scanning unit disposed at a focal position of the second lens, and an optical path branching unit disposed between the first and second lenses. An observation optical path located on a transmission optical path of the optical path branching unit, and an optical path of measurement light located on a reflection optical path of the optical path branching unit. The second lens is disposed on the optical path of the measurement light between the first lens and the scanning unit, such that an angle at which the measurement light scanned by the scanning unit is incident on the optical path branching unit is maintained substantially unchanged during scanning.

Optical tomographic imaging apparatus

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port (), a discharge port (), and a partition member (). The partition member () is attached to the lower bearing member () so as to form a refrigerant discharge space () serving as a flow path of a refrigerant discharged from a discharge chamber () through the discharge port (). The lower bearing member () is provided with a first recess () on the same side as the suction port () with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder () and a center of the vane () when the vane () protrudes maximally toward the central axis of the cylinder (). A portion of oil stored in an oil reservoir () flows into the first recess (), and thereby an oil retaining portion () is formed.

An ophthalmic system including an ophthalmic apparatus for acquiring an image of an anterior portion of a subject's eye and a tomographic image of the subject's eye includes a display control unit configured to cause a display unit to display the image of the anterior eye portion and the tomographic image, and an instruction unit configured to, if a pointer which indicates a point on the display unit is on the image of the anterior eye portion, give an instruction to change a distance between the subject's eye and the ophthalmic apparatus, and if the pointer is on the tomographic image, give an instruction to change the position of a coherence gate.

Ophthalmic system

A rotary compressor () includes a closed casing (), a cylinder (), a piston (), a lower bearing member (), a vane (), a suction port (), a discharge port (), and a partition member (). The partition member () is attached to the lower bearing member () so as to form a space enclosed by the partition member () and the lower bearing member () at a position adjacent to the lower bearing member (). A portion of an oil stored in the oil reservoir () flows into the enclosed space, and thereby an oil retaining portion () is formed. The oil retaining portion () is located on the same side as the suction port () with respect to a reference plane (H).

Rotary compressor with oil retaining portion

A compression element includes a substantially spiral oil groove which is provided in inner peripheral surfaces of bearings and of the shaft. One end of the oil groove opens at a bearing base portion, and the other end of the oil groove opens at a bearing end. According to this configuration, oil in a gap between the shaft and inner peripheries of the bearings and forcibly discharges, into the hermetic container, gas bubbles generated in a sliding gap between the shaft and the bearings and by action of a viscosity pump generated by the substantially spiral oil groove, and it is possible to provide a rotary compressor capable of preventing seizing and wearing caused by gas-involvement at a bearing sliding portion, and capable of securing reliability when refrigerant including R32 is used.

Rotary compressor having an oil groove in an inner peripheral surface of a bearing

An optical tomographic imaging apparatus includes a first lens, an optical path branching unit, a second lens and a scanning unit disposed on an optical path of measurement light with which an object to be examined is irradiated. The second lens and the scanning unit are disposed in such a manner that an angle at which the measurement light scanned by the scanning unit is incident on the optical path branching unit satisfies a wavelength separation characteristic of 90% or higher at a wavelength of observation light of the object to be examined in a wavelength band of the measurement light.

An image capturing apparatus includes a dividing unit configured to divide light from a light source into reference light and measurement light; a first dichroic mirror arranged in a measurement optical path for guiding the measurement light to an object to be examined; a second dichroic mirror arranged in a reference optical path for guiding the reference light to a reference object; and a light receiving unit configured to receive interference light between the measurement light passing through the first dichroic mirror and the reference light passing through the second dichroic mirror.

Image capturing apparatus, image capturing method, and storage medium

A light source generates light to fixate a gaze of an eye to be examined, while a scanning unit performs main-scanning and sub-scanning on a fundus of the eye to be examined with the light from the light source.

Ophthalmic device, and method and program for controlling the same

Growing community of inventors

Yokohama, Japan

Hirofumi Yoshida