Abstract: The present invention provides a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities, and preferably high charge/discharge efficiency and low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen content obtained by elemental analysis of 3.5 mass % or more, a ratio of nitrogen content and hydrogen content (RN/H) of 6 or more and 100 or less, a ratio of oxygen content and nitrogen content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 ? or more.

Abstract: An image pickup apparatus includes a camera main body, an eyepiece portion for viewing an object image, and a frame member having an opening through which light of the object image passes, and the eyepiece portion includes a bone conduction speaker.

Abstract: An image pickup apparatus includes an image sensor unit that includes a fixed unit and a movable unit movable relative to the fixed unit, and a duct unit configured to form an air channel. The movable unit includes an image sensor and a heat exchanger. At least part of the heat exchanger is inserted inside the duct unit through an opening of the duct unit.

Abstract: An image pickup apparatus includes an image sensor unit that includes a fixed unit and a movable unit movable relative to the fixed unit, and a duct unit configured to form an air channel. The movable unit includes an image sensor and a heat exchanger. At least part of the heat exchanger is inserted inside the duct unit through an opening of the duct unit.

Abstract: An image pickup apparatus includes a mount portion, a lock member movable between a lock position for locking the interchangeable lens unit and an unlock position for unlocking it, and forced from the unlock position toward the lock position, an operation member movable from a nonoperation position to an operation position in response to a press operation for moving the lock member from the unlock position to the lock position, and an interlock member movable by the pressed operation member and configured to move the lock member from the lock position to the unlocked position. The interlock member includes a contact portion configured to contact a contacted portion provided on either the lock member or a member configured to move integrally with the lock member, and at least one of the contact portion and the contacted portion has a convex shape toward the other.

Abstract: An image pickup apparatus includes a camera main body, an eyepiece portion for viewing an object image, and a frame member having an opening through which light of the object image passes, and the eyepiece portion includes a bone conduction speaker.

Abstract: An image pickup apparatus includes a mount portion, a lock member movable between a lock position for locking the interchangeable lens unit and an unlock position for unlocking it, and forced from the unlock position toward the lock position, an operation member movable from a nonoperation position to an operation position in response to a press operation for moving the lock member from the unlock position to the lock position, and an interlock member movable by the pressed operation member and configured to move the lock member from the lock position to the unlocked position. The interlock member includes a contact portion configured to contact a contacted portion provided on either the lock member or a member configured to move integrally with the lock member, and at least one of the contact portion and the contacted portion has a convex shape toward the other.

Abstract: A digital camera is provided that includes a rotation operation member unit having a circumferential surface, a sheet fixed to the circumferential surface of the rotation operation member unit, and a photo reflector provided at a position facing the sheet that applies light to the sheet and detects the light reflected from the sheet. In the sheet, regions that reflect light to a level at which a photo reflector can detect the reflected light and regions that do not reflect the light are alternately formed. Additionally, a convex portion that is formed in the sheet in the rotation axis direction of the rotation operation member unit, and a concave portion that is formed in the rotation axis direction of the rotation operation member unit are engaged.

Abstract: A digital camera is provided that includes a rotation operation member unit having a circumferential surface, a sheet fixed to the circumferential surface of the rotation operation member unit, and a photo reflector provided at a position facing the sheet that applies light to the sheet and detects the light reflected from the sheet. In the sheet, regions that reflect light to a level at which a photo reflector can detect the reflected light and regions that do not reflect the light are alternately formed. Additionally, a convex portion that is formed in the sheet in the rotation axis direction of the rotation operation member unit, and a concave portion that is formed in the rotation axis direction of the rotation operation member unit are engaged.

Abstract: A hinge unit which can be positively prevented from rotating in an opening direction from a fully open position, without being increased in size. The hinge unit includes a fixed member fixed to a camera body, a rotational shaft rotatably held by the fixed member, a holding member fixed to the rotational shaft in a state holding the image display section, and a clamping member having a pair of clamping portions for diametrically clamping the rotational shaft and configured to rotate in unison with the rotational shaft. In a case where the holding member rotates in the opening direction to a fully open position, one of the clamping portions is brought into abutment with the fixed member to thereby prevent the holding member from rotating in the opening direction from the fully open position.

Abstract: A hinge unit which can be positively prevented from rotating in an opening direction from a fully open position, without being increased in size. The hinge unit includes a fixed member fixed to a camera body, a rotational shaft rotatably held by the fixed member, a holding member fixed to the rotational shaft in a state holding the image display section, and a clamping member having a pair of clamping portions for diametrically clamping the rotational shaft and configured to rotate in unison with the rotational shaft. In a case where the holding member rotates in the opening direction to a fully open position, one of the clamping portions is brought into abutment with the fixed member to thereby prevent the holding member from rotating in the opening direction from the fully open position.

Abstract: The present invention is directed to an actuator capable of retaining an image-shake correcting lens in a position(s) at which a calibration of lens optics can be affected, without additional locking means.

Abstract: A parallel moving device includes a fixed plate provided on a housing side, a moving frame provided on an optical system side, and three pin-shaped members each of which is provided between the fixed plate and the moving frame and has one end coming into contact the fixed plate and the other end coming into contact the moving frame to support these members, the pin-shaped members allowing the moving frame to move in a direction substantially perpendicular to an optical axis of the optical system. Each of these pin-shaped members supports the moving frame in parallel to the fixed plate, has ends that contact the fixed plate and the moving frame and that have curved surfaces, and tilts in the substantially perpendicular direction in response to movement of the moving frame about the one end as a fulcrum.

Abstract: The present invention is directed to an actuator capable of retaining an image-shake correcting lens in a position(s) at which a calibration of lens optics can be affected, without additional locking means.

Abstract: A parallel moving device includes a fixed plate provided on an enclosure side, a moving frame provided on an optical system side, and three columnar members that are provided between the fixed plate and the moving frame and that support the fixed plate and the moving frame so as to enable movement of the moving frame in a direction substantially perpendicular to an optical axis of the optical system. These columnar members are formed with an elastic member that connects the fixed plate and the moving frame in the direction along the optical axis and supports the moving frame in parallel with the fixed plate.

Abstract: A parallel moving device includes a fixed plate provided on a housing side, a moving frame provided on an optical system side, and three pin-shaped members each of which is provided between the fixed plate and the moving frame and has one end coming into contact the fixed plate and the other end coming into contact the moving frame to support these members, the pin-shaped members allowing the moving frame to move in a direction substantially perpendicular to an optical axis of the optical system. Each of these pin-shaped members supports the moving frame in parallel to the fixed plate, has ends that contact the fixed plate and the moving frame and that have curved surfaces, and tilts in the substantially perpendicular direction in response to movement of the moving frame about the one end as a fulcrum.

Abstract: A focusing detection sensor is positioned in a viewfinder in a single-lens reflex camera but is nevertheless able to determine a focal point on an image of an object with enhanced accuracy. For that purpose, a single-lens reflex camera includes a camera body having a focusing plate with a reference mark in an optically equivalent position to film, a viewfinder replaceably attached to the camera body, a focal point detecting means for determining a focal point, deviation detection means for determining deviations for both the reference mark and the focal point, respectively, calibration means for correcting focal point data based on the output from the deviation detecting means, and a trigger means for enabling a user to activate the calibration means.