Nikon Corporation

Mitsubishi Denki Kabushiki Kaisha

Other

Mitsubishi Electric Semiconductor Software Corporation

Hiroki Takita

Marie Shimoyama

Hisanori Togawa

Satoshi Kazahaya

Kentaro Terao

Yuki Kinouchi

Mizuki Wayu

Takumi Nakano

Isao Minematsu

Koji Hirano

Akihiro Nakatani

Yasuhiko Endo

A lens barrel, that can be made thinner, has a lens holding frame that holds a lens; a driving part that is held by the lens holding frame; aperture blades including a first engaging part and a second engaging part; a first member that engages with the first engaging part and can be rotated around an optical axis by the driving part; and a second member that engages with the second engaging part and is provided with the aperture blade arranged between the second member and the first member.

Lens barrel and imaging device

A lens barrel includes: a first lens; a first tube that holds the first lens and moves along an optical axis; a focusing lens; an actuator that drives the focusing lens; and a second tube that holds the focusing lens and the actuator and moves along the optical axis.

Lens barrel and image capturing device

A camera system and a lens barrel are provided in an exchangeable-lens camera including a shake correction mechanism that integrally drives a lens barrel and an imaging unit, it being possible for lenses to be exchanged smoothly, and greater utility and convenience to be obtained. A lens barrel to and from which a camera body can be attached and detached, wherein the lens barrel includes: a first barrel having a first engagement part that engages with a first part of the camera body; a second barrel disposed inside the first barrel, the second barrel having a second engagement part that engages with a second part of the camera body, and having an optical system; and a drive unit that drives the second barrel in relation to the first barrel.

Lens barrel, camera body, camera system

A camera system and a lens barrel capable of improving practicality and convenience by enabling smooth lens exchange in a lens-interchangeable camera having a vibration correction mechanism that integrally drives a lens barrel and an image capturing unit. A lens barrel to which a camera body can be detachably attached, the lens barrel including: a first barrel having a first engaging portion that engages with a first portion of the camera body; and a second barrel disposed inside the first barrel and having an optical system and a second engaging portion that engages with a second portion of the camera body.

A frequency switching method controlled by a microcomputer ( ) incorporated in a frequency switching device is capable of halting a timer ( ) at a timing at which a pattern of levels of pulse signals supplied from the timer ( ) is agreed with a predetermined pattern, of setting a desired frequency to the timer ( ), and then of restarting the operation of the timer ( ) after a passage of a predetermined time period counted from the above timing in order to generate pulse signals of a desired frequency and outputs them to a pre-driver ( ).

Frequency switching method by microcomputer and frequency switching device

A power regulator including a coil connected to an output of a DC power source for rectifying an AC voltage, a charge-and-discharge capacitor for charging a current supplied from the DC power source through the coil and a backflow preventing diode, a switching device connected to a connection point of the coil and backflow preventing diode in parallel with the DC power source, and a microcomputer for detecting a zero-cross point of the magnetic field energy generated in the coil or the current flowing through the coil, and for bringing the switching device into conduction in response to the detection of the zero-cross point. This makes it possible to solve a problem of a conventional device in that the switching period of the switching device cannot be changed in accordance with variables such as temperature change, errors in circuit constants and the like because switching periods of the switching device are predetermined values.

Power regulator using active filter

For a polygon without self-intersection, with one of line segments constituting the outline of the polygon selected sequentially in the counterclockwise rotation, all the bits in the right direction of the selected line segment on the horizontal coordinate, inclusive of those for the selected line segment, on the plane work area (1 bit/pixel) of the work memory are inverted to draw (Step S,). Subsequently, only some of the line segments constituting the outline of the polygon whose vectors are in the upward direction (which makes an upward vertical-coordinate variation) are further drawn on the work memory (,A) (Step S,). Finally, the drawing information is transferred with extension from the work memory to the display memory (Step S,). Having the above steps, a method for achieving proper filling of a polygon with a decrease in load on a processor is provided.

Method and filling a polygon and recording medium

To obtain a display method navigation map intended to lessen the load of control means such as CPU, by quick scroll display. By comparison between preceding judging region (JO) and present judging region (JN), a changing direction of judging region is recognized, and rewriting is processed in advance in a page (display off divided memory region) of a map memory, being out of map display region of a display device. At this time, rewriting is processed by priority in a divided memory region that is high in possibility of move of the own vehicle and that must be written at the earliest opportunity.

Display method of navigation map

A graphic display control apparatus which automatically scrolls display contents of a screen vertically, horizontally or diagonally by automatically updating the reading address corresponding to the amount of scrolling, when read-out areas for display information of one screen read out from a frame memory whose capacity allows a CPU to write display information larger than one screen, e.g., an animation background, a motorcar navigation map or the like therein are sequentially moved, thereby to lighten the burden of the CPU at the scrolling time.

Graphic display control apparatus

A navigation apparatus has a main processor and a graphic processor. Drawing attribute data for drawing a map, and scroll attribute data for scrolling the map are sent from the main processor to the graphic processor. The graphic processor performs a map drawing process and a map scroll process, and the main processor performs other processes.

Growing community of inventors

Tokyo, Japan

Hiroki Takita