Abstract: 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, M=Fntl/Fob×250/Fne??(1) Fntl=Ftl×Kt??(2) Fne=Fe×Kt??(3) 0.4<kt<0.95??(4).

Abstract: 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, M=Fntl/Fob×250/Fne??(1) Fntl=Ftl×Kt??(2) Fne=Fe×Kt??(3) 0.4<Kt<0.

Abstract: 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 re

Abstract: In an-electronic image pickup apparatus where an object light after passing through a taking lens unit having a plurality of lenses is photoelectrically converted at an image pickup device to be recorded, the taking lens unit is constructed as having a reflecting mirror located between the lenses so that a light incident thereupon is bent, and is disposed such that it be positioned in front of an image display section provided on a back surface of the body with a length direction thereof being perpendicular to a bottom surface of the body. The electronic image pickup apparatus is thereby achieved as having a well-balanced configuration where the body is neither increased in thickness nor too long in a lateral dimension.

Abstract: In an electronic image pickup apparatus where an object light after passing through a taking lens unit having a plurality of lenses is photoelectrically converted at an image pickup device to be recorded, the taking lens unit is constructed as having a reflecting mirror located between the lenses so that a light incident thereupon is bent, and is disposed such that it be positioned in front of an image display section provided on a back surface of the body with a length direction thereof being perpendicular to a bottom surface of the body. The electronic image pickup apparatus is thereby achieved as having a well-balanced configuration where the body is neither increased in thickness nor too long in a lateral dimension.

Abstract: A photographic lens system for forming an object image is placed in the lens barrel of an electronic camera. In a camera body, a beam splitter for forming branched optical paths and an image sensing element for photoelectrically converting the formed object image are arranged. An optical filter attached to a filter cap is inserted between the beam splitter and the image sensing element. The filter cap intimately contacts with the perimeter of the exit surface of the beam splitter and the perimeter of the image sensing surface of the image sensing element, thereby forming closed spaces, between the optical filter and the beam splitter and between the optical filter and the image sensing element, which allow incident light to pass through.

Abstract: 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 re

Abstract: 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 rec

Abstract: An electronic imaging device is provided which includes a first lens group which takes in a luminous flux from a subject along a first optical axis, an optical axis conversion member which bends the luminous flux along a second optical axis which intersects with the first optical axis, a second lens which images the bent luminous flux to an imaging element, and an optical amount adjustment unit provided between the second lens group and the optical axis conversion member. An AF motor, a driving unit which drives the optical amount adjustment unit, and a zoom motor are each selectively arranged at one of four spaces formed by a first plane defined by the optical amount adjustment unit and a second plane defined by the first and second optical axes. The AF motor, the driving unit, and the zoom motor may all be arranged at one side of the second plane.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In an electronic image pickup apparatus where an object light after passing through a taking lens unit having a plurality of lenses is photoelectrically converted at an image pickup device to be recorded, the taking lens unit is constructed as having a reflecting mirror located between the lenses so that a light incident thereupon is bent, and is disposed such that it be positioned in front of an image display section provided on a back surface of the body with a length direction thereof being perpendicular to a bottom surface of the body. The electronic image pickup apparatus is thereby achieved as having a well-balanced configuration where the body is neither increased in thickness nor too long in a lateral dimension.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A photographic lens system for forming an object image is placed in the lens barrel of an electronic camera. In a camera body, a beam splitter for forming branched optical paths and an image sensing element for photoelectrically converting the formed object image are arranged. An optical filter attached to a filter cap is inserted between the beam splitter and the image sensing element. The filter cap intimately contacts with the perimeter of the exit surface of the beam splitter and the perimeter of the image sensing surface of the image sensing element, thereby forming closed spaces, between the optical filter and the beam splitter and between the optical filter and the image sensing element, which allow incident light to pass through.

Abstract: A photographic lens system for forming an object image is placed in the lens barrel of an electronic camera. In a camera body, a beam splitter for forming branched optical paths and an image sensing element for photoelectrically converting the formed object image are arranged. An optical filter attached to a filter cap is inserted between the beam splitter and the image sensing element. The filter cap intimately contacts with the perimeter of the exit surface of the beam splitter and the perimeter of the image sensing surface of the image sensing element, thereby forming closed spaces, between the optical filter and the beam splitter and between the optical filter and the image sensing element, which allow incident light to pass through.

Abstract: 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.

Abstract: A rectilinear barrel of a camera supporting a lens group in a manner that the lens group is movable along a rectilinear slot in the direction of its optical axis, a cam ring which has on its circumference a rib with a cutout portion and which rotates to drive the lens group in the direction of the optical axis, a threaded driving shaft for moving the rectilinear barrel between an imaging position and a retracted position, a zoom gear for rotating the cam ring when the rectilinear barrel is at the imaging position, and a locking tab for allowing the rectilinear barrel to move by means of the threaded driving shaft by aligning itself with the cutout portion and for locking the movement of the cam ring, and thus, the rectilinear barrel by aligning itself with the rib.