Olympus Optical Company, Ltd.

Olympus Corporation

Olympus Corporatiion

Tatsuji Higuchi

Yasuo Asakura

Toshifumi Nakano

Takashi Inoue

Akio Terane

Yukinori Takahashi

Kenichi Aoki

Yasuyuki Nishidai

Osamu Nonaka

Tatsuya Suzuki

Koji Kato

Yukio Nakajima

Kazuo Yamamoto

Moriya Katagiri

Naoki Fujii

Juro Kikuchi

Kazuyuki Iwasa

Kazuo Kajitani

Yasuo Yamazaki

Akira Inoue

Yuichi Torikoshi

Shunji Matsutani

Masaaki Daigaku

Hiroaki Nakamura

Hitoshi Shirai

Yu Sato

Atushi Maruyama

Yasuyuki Kawabe

Isao Nagasawa

Masanobu Umeda

Observation over a superwide field of view is possible with a short, lightweight, and inexpensive eyepiece optical system and a binocular barrel. A microscope optical system includes an objective optical system configured to collect light from a specimen; an imaging optical system configured to image the light coming from the specimen and collected by the objective optical system; and an eyepiece optical system configured to magnify the image of the specimen formed by the imaging optical system and form a virtual image in an eye of an observer, wherein the following conditional expressions are satisfied,250/&#x2003;&#x2003;(1)&#x2003;&#x2003;(2)&#x2003;&#x2003;(3)0.4&#x3c;&#x3c;0.95&#x2003;&#x2003;(4).

Microscope optical system

An electronic camera comprises imaging means for optoelectrically converting a subject image to generate electronic image data, temporary storage means for temporarily storing the image data produced by the imaging means, image display means for displaying an image based on the image data stored in the temporary storage means, recording means for recording the image data stored in the temporary storage means on a recording medium, erasing means for erasing the image data recorded on the recording medium, instructing means for instructing the recording means to abort recording on the recording medium of the image data stored in the temporary storage means or for instructing the era-sing means to erase the image data recorded on the recording medium, and control means for controlling the image display means to display thereon the image based on the image data stored in the temporary storage means for a predetermined period of time after capturing, for controlling the recording means to abort recording on the recording medium of the image data stored in the temporary storage means when an instruction is given from the instructing means while the recording means is recording the image data on the recording medium, and for controlling the erasing means to erase the image data recorded on the recording medium when an instruction is given from the instructing means after the recording means has recorded the image data on the recording medium.

Electronic camera

An electronic camera comprises imaging means for optoelectrically converting a subject image to generate electronic image data, temporary storage means for temporarily storing the image data produced by the imaging means, image display means for displaying an image based on the image data stored in the temporary storage means, recording means for recording the image data stored in the temporary storage means on a recording medium, erasing means for erasing the image data recorded on the recording medium, instructing means for instructing the recording means to abort recording on the recording medium of the image data stored in the temporary storage means or for instructing the erasing means to erase the image data recorded on the recording medium, and control means for controlling the image display means to display thereon the image based on the image data stored in the temporary storage means for a predetermined period of time after capturing, for controlling the recording means to abort recording on the recording medium of the image data stored in the temporary storage means when an instruction is given from the instructing means while the recording means is recording the image data on the recording medium, and for controlling the erasing means to erase the image data recorded on the recording medium when an instruction is given from the instructing means after the recording means has recorded the image data on the recording medium.

The first electronic imaging device, which performs a photoelectric-conversion of a subject light with an imaging element and records it, according to the present invention is characterized by comprising a first lens arranged along a first optical axis to take a luminous flux from the subject, an optical axis conversion material which bends the luminous flux which passes the first lens along a second optical axis which intersects with the first optical axis, a second lens which images the luminous flux bent along the second optical axis to the imaging element arranged on the second optical axis, and an optical amount adjustment device provided between the imaging element and the optical axis conversion material.

Electronic imaging device

In an electronic image pickup apparatus, a beam splitter and an image pickup element are incorporated into an optical finder unit together with optical parts used for an optical finder. The optical finder unit includes a finder case for receiving the optical parts used for the optical finder and a holding member for holding the beam splitter and the image pickup element. The image pickup element has an image pickup surface which is inclined to the light beams incident upon the beam splitter. The light beam incident upon the image pickup element is reflected twice in the beam splitter, while the light beam incident upon the optical finder penetrates the beam splitter without being reflected.

Electronic image pickup apparatus

A mechanism component information is solely managed with an assembly structure. A mechanism component design support system supports systematic mechanism component design, which includes: generation of a mechanism draft using a skeleton model in selecting the mechanism draft and a mechanism operation simulation for the mechanism draft; a mechanism operation simulation in a state in which some (or all) 2D shape are determined; and then automatic generation of a 3D shape and a mechanism operation simulation for the 3D shape.

Mechanism component design support system

An electronic image pickup apparatus according to the present invention includes a holding barrel, a lens frame supported by guide shafts inside the holding barrel and slidable and moveable in a direction of an optical axis, a light beam adjusting unit including an aperture and/or shutter for mechanically adjusting a light beam passing through the lens frame, and an image pickup element for converting an object image passed through the light beam adjusting unit to an electrical signal. The light beam adjusting unit comprises a base plate arranged perpendicular to the optical axis inside the lens barrel, an aperture member and/or a shutter member attached to the base plate, and an aperture driver for driving the aperture member and/or a shutter driver for driving the shutter member, arranged on the base plate.

An electronic image pickup apparatus comprises a shutter having a shielding member which can be inserted into or removed from an optical path of an optical system for forming an image of an object on a light receiving surface of an image pickup element, an inserting/removing mechanism for inserting or removing the shielding member into or from the optical path, a driver for driving the inserting/removing mechanism, and a manipulator for operating the inserting/removing mechanism by a driving system other than the driver.

An electronic camera including a built-in strobe, an external strobe synchronization terminal, a photographic optical system, a prism, an imaging device, a viewfinder optical system, a light adjustment device, a movable mirror, and a drive source and drive circuit. External strobes are connected to the external strobe synchronization terminal so that they can be flashed synchronously with the built-in strobe. The prism splits a beam having passed through the photographic optical system. One portion of the split beam is converged on the imaging device to form an image thereon. The other portion of the split beam enters the viewfinder optical system. The light adjustment device detects the luminance of an object illuminated by the strobes. The movable mirror can selectively assume a position for transmitting a beam and a position for reflecting a beam. In the position for transmitting a beam, the movable mirror lies within the viewfinder optical system and routes a beam towards an eyepiece. In the position for reflecting a beam, the movable mirror reflects the beam towards the light adjustment device. The drive source and drive circuit displace the movable mirror. An amount of strobe light can be detected accurately by measuring the beam having passed through the photographic optical system. An image observed through the viewfinder does not appear dark.

Electronic camera with a view finder optical path switching device for selective transmission and reflection of light beam

An electronic camera includes a quick-return mirror pivoted by a drive shaft. The mirror is selectively movable between a luminous flux reflective position in which an image-forming luminous flux from an imaging optical system is reflected toward a view finder optical system and a luminous flux transmissive position in which the image-forming luminous flux is transmitted toward an image pickup device. A transflector is arranged on the quick-return mirror. A shielding member moves to an open position when the quick-return mirror takes the luminous flux reflective position, and moves to an external light shielding position when the quick-return mirror takes the luminous flux transmissive position. An interlocking mechanism has a toggle spring for moving the shielding member in interlock with the quick-return mirror. The electronic camera is thus free from the splitting of the image forming luminous flux reaching the image pickup device, and performs AF, AE, and AWB operations any time.

An optical apparatus according to the present invention includes a cylindrical holding barrel, a plurality of moving lens frames which are held in the holding barrel such that the moving lens frames are moved back and forth in an optical axis direction, and a cam cylinder fitted on an outer surface of the holding barrel so as to move the moving lens frames. The cam cylinder slides and rotates on the outer surface of the holding barrel, and includes a first cam cylinder and a second cam cylinder each having a cam section on an inner surface thereof, and one end face of the first cam cylinder and one end face of the second cam cylinder are coupled to each other such that the first and second cam cylinders are rotated together.

Optical apparatus with cam cylinder having concave and convex cams

An optical apparatus according to the present invention includes a moving lens frame guided movably in an optical axis direction by guide shafts, a drive source for driving the lens frame along the optical axis direction, a lead screw attached to the drive source, a nut member which is fitted on the lead screw and whose rotation is controlled by a rotation control section, the nut member moving only in the optical axis direction by rotation of the lead screw, and an urging spring for pressing part of the lens frame on the nut member such that the lens frame follows movement of the nut member. The lead screw has a top end portion and a bottom end portion each of which is a non-screw portion having a diameter smaller than that of a root of a screw portion of the lead screw, and a spring is fitted near the bottom end portion of the lead screw to urge the nut member, which is fitted in the bottom end portion, in such a manner that the nut member is pushed in a direction of the top end portion of the screw.

Optical apparatus

An optical apparatus according to the present invention includes a cylindrical holding barrel, a lens moving mechanism including a cylindrical cam which is rotatably fitted on an outer surface of the holding barrel in such a manner that a plurality of moving lens frames held in the holding barrel are moved in an optical axis direction, a light quantity adjusting mechanism held in the holding barrel, for adjusting a quantity of light passing therethrough, lens moving mechanism driving sources for driving the lens moving mechanism, and light quantity adjusting mechanism driving sources for driving the light quantity adjusting mechanism. The lens moving mechanism driving sources and the light quantity adjusting mechanism driving sources are held in the holding barrel.

In a design supporting system, projected shape information of a part, for example, solid model definition drawing is input from a shape inputting section based on the drawing formation on the CAD, shape attribute information thereof is input from a shape attribute inputting section, and the projected shape information and shape attribute information are combined and stored in an input information storing section. Further, a 3-dimensional CAD solid model creation command group includes a plurality of 3-dimensional CAD drawing modules used for converting the projected shape information into 3-dimensional information. A control section creates a 3-dimensional CAD solid model by controlling the 3-dimensional CAD drawing modules of the 3-dimensional CAD solid model according to the projected shape information and shape attribute information stored in the storage section.

CAD system which automatically creates a 3-dimensional solid model

A shading device of a camera having shading bellows which is collapsible in interlocking motion with an imaging-lens barrel movable in the direction of its optical axis and which is provided between the front side of the aperture of a camera body and the imaging-lens barrel, wherein the relationship L1/L0&lt;L0/L2 holds where L0 represents the free length of the shading bellows when it is formed, L1 represents the maximum length of the shading means expanded in the direction of the optical axis and L2 represents the minimum length of the shading means contracted in the direction of the optical axis.

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Akiruno, Japan

Tatsuji Higuchi