Abstract:
PROBLEM TO BE SOLVED: To realize AGC processing capable of coping with both the conversation recording or the like and music recording or the like. SOLUTION: A standard mode wherein the attack time / recovery time suitable for recording a conversation, a conference, and comparatively quiet music (chamber music or the like) or the like is selected, and a music mode, wherein the attack time / recovery time suitable for recording music such as rock is selected, can selectively be set as to the AGC processing. In the case of the music mode, the by making the recovery time longer, unnatural level variations in music is suppressed and first and succeeding intermittent peak tones are less likely to be distorted, and by making the attack time shorter, distortions in the peak tone in excess of an AGC level are improved. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To surely perform centering of a lens, and to tilt the lens in all directions. SOLUTION: A swinging and tilting mechanism includes a lens 30, a lens-holding frame 33 that holds the lens 30, a fixed member 34, and an operation member 35; the fixed member 34 includes a rotation support portion 43, that rotatably supports the lens holding frame 33 in at least one side surface in one direction, perpendicular to the optical axis of an optical system and a tilting support groove 44 that supports the lens-holding frame tiltably in a direction of the optical axis, in at least one side surface in another direction perpendicular to the optical axis and the one direction; and the operation member makes the lens-holding frame 33 supported by the fixed member rotate with the rotation support portion 43 which is used as a support point, and makes the same tilt along the tilting support groove 44. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a body tube device which can be downsized as a whole without increasing its outer diameter when two or more optical part holding frames are used, where the rolling body units and the first guiding grooves of adjacent optical part holding frames are received alternately, and which yields a desired image by making the adjacent optical part holding frames more approximate to each other, and to provide an imaging device. SOLUTION: The lens body tube device 1 is equipped with: two or more lens moving parts 3A, 3B and 3C having two or more first guiding grooves at which lenses 21A, 21B and 21C are held and that are extended in the optical axis direction of the lenses 21A to 21C and arranged in parallel to each other; a body tube 2 having two or more second guiding grooves facing the two or more first guiding grooves; the two or more rolling body units rollably interposed between the first guiding grooves and the second guiding grooves and supporting the lens holding frames to freely slide at two or more spots. Between the adjacent lens holding frames of the two or more lens moving parts 3A to 3C, the positions of the two or more first guiding grooves, the two or more second guiding grooves and the two or more rolling body units interposed between the guiding grooves are displaced from each other in the circumferential direction of the lens so that they are alternately received between each other. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To solve the following problems; in a conventional lens apparatus, it is difficult to miniaturize a lens barrel driving mechanism, and in order to surely move a movable lens barrel backward and forward, it is necessary to increase the output of the driving mechanism, consequently, the whole apparatus becomes large in size. SOLUTION: The lens apparatus includes; a 1st fixed lens barrel 51 with a plurality of 1st fixed-side guide grooves 67, 7 and 7 and 2nd fixed-side guide grooves 66 and 75; the 1st movable lens barrel 52 with a plurality of 1st movable-side guide grooves 59, 59 and 59; the 2nd movable lens barrel 202 with a plurality of 2nd movable-side guide grooves 72 to 74; two or more 1st rolling units 53A to 53C for supporting the 1st movable lens barrel related to the 1st fixed lens barrel so that the 1st movable lens barrel can move in the optical axis direction; two or more 2nd rolling units 65A to 65C for supporting the 2nd movable lens barrel related to the 1st fixed lens barrel so that the 2nd movable lens barrel can move in the optical axis direction of the lens. The 1st movable lens barrel 52 and the 2nd movable lens barrel 202 are supported so that they can independently move in the optical axis directions of the 1st lens and the 2nd lens. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a camera is not completely thinned and miniaturized because extra space is required in the conventional lens device, because the lens device is rotated and biased to a first position and a second position by rotating and biasing a part or all of the lens device. SOLUTION: The lens device includes: an optical path bending member holding frame 216 for holding a prism 227 arranged on the optical axis of a lens and bending the course of light advancing along the optical axis; a movable lens barrel 52 in which the optical path bending member holding frame is housed; and a fixed lens barrel 51 for supporting the movable lens barrel rotatably in the direction of the optical axis by a plurality of a direct acting rolling supporting means 1 through the optical path bending member holding frame. The lens device is constituted so that the movable lens barrel 52 can get in and out of the fixed lens barrel 51 in a nesting system. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a conventional linear motion rolling guide device makes preload drop when a set screw is loosened since the preload varies due to the fastening degree of the set screw when employing an ejecting means such as a set screw as a preload adjusting mechanism. SOLUTION: The device is equipped with a guide member 2 having a first guide groove 7 linearly extended and a fitting hole 11 symmetrically arranged around the first guide groove 7 and a movable member 3 provided with a second guide groove 8 linearly extended and opposed to the first guide groove 7 at a specified gap in between, a fixed member 4 for retaining the guide member 2, a rolling element unit 5 having a plurality of cylindrical rollers 14 rollably interposed between the first guide groove 7 and second guide groove 8, a pair of plate springs 6A, 6B for applying preload on the rolling element unit 5 through the medium of a guide member 2 and movable member 3. The fixed member 4 is provided with a fitting pin 22 which can be fitted into the fitting hole 11 in the guide member 2. The fitting hole 11 is a long hole elongated in a direction orthogonal to a direction along which the first groove 7 is extended. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent a front lens or an image pickup element from being prostrated because of deformation of a main lens-barrel, by centering a front lens- barrel and a rear lens-barrel comprising different members different from the main lens-barrel out to an optical axis utilizing a guide shaft of a lens holding frame. SOLUTION: One-end parts 9a, 9a of two parallel guide shafts 9, 9 with plural held lens holding frames 6, 7, 8 having movable lenses are press fitted fixedly into press fit bearing holes 10, 10 formed in a front wall face 1a of a main lens-barrel 1 to be penetrated, the other-end parts of the guide shafts 9, 9 are positioned on receiving seats 11, 11 formed in a rear wall 1b of the main lens-barrel 1 to be penetrated, the guide shaft 9, 9 are held on receiving seats 13, 13 by shaft pressing frames 13, 13 provided vertically from a lid lens- barrel 12, and an auxiliary lend-barrel 17 of front lens 16 and an auxiliary lens-barrel 23 of an image pickup element 22 are positioned to be assembled in the guide shafts 9, 9 projected from the front wall face 1a and the rear wall face 1b of the main lens-barrel 1.
Abstract:
PROBLEM TO BE SOLVED: To achieve the miniaturization of a lens barrel device by dispensing with a magnetic circuit part provided individually for each of a plurality of lens holding frames thereby preventing an increase in the number of parts. SOLUTION: The lens barrel device is equipped with: a plurality of lens moving parts 3A, 3B and 3C respectively holding lenses 21A, 21B and 21C and having a plurality of first guiding grooves extended in the optical axis direction of the lenses 21A to 21C and made parallel with each other; a plurality of coils 23A, 23B and 23C respectively stuck on the plurality of lens moving parts 3A to 3C; magnetic circuit parts 4A, 4B and 4C piercing through the plurality of coils 23A to 23C and forming a magnetic closed circuit; a lens barrel 2 housing the plurality of lens moving parts 3A to 3C and having second guiding grooves extended in the optical axis direction, made parallel with each other and opposed to the first guiding grooves; and a plurality of rolling body units interposed to freely roll between the first and the second guiding grooves. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To eliminate the inconveniences caused by the level differences between music pieces and the environments when reproducing. SOLUTION: A level conversion mode (reproduction compressor mode)is provided to compress the dynamic range of the reproduced audio signals. The user operates to select ON or OFF of the level conversion mode. A compression operation to linearly compress the dynamic range in the level conversion mode is performed when it is set on. Alternatively, the level difference between the musical pieces is reduced with less dynamic range compression of the music itself in the gain control. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To enable an internal noise mixed into a microphone input system to be canceled. SOLUTION: A ground wiring pattern, in parallel with an audio signal pattern, is formed between a microphone connection jack and a microphone amplifier, as a pattern on a board. The microphone amplifier is composed of a differential amplifier, and performs differential amplifying processing on audio signal inputted through the audio signal pattern. The negative feedback side of the differential amplifier is connected to the ground pattern parallel with the audio signal pattern to be grounded. Since noise influence similar to that of the audio signal pattern is provided to the ground pattern, in parallel with the audio signal pattern, in-phase noise of the noise superimposed on the audio signal is provided to the reference side of the differential amplifier, so that noise cancelation is performed by the differential amplifying processing. COPYRIGHT: (C)2005,JPO&NCIPI