Canon Kabushiki Kaisha

Tdk Corporation

Futoshi Kobayashi

Mamoru Usami

Tsuyoshi Itoh

Junichi Ide

Takeshi Umega

Haruhiko Yamaguchi

Yoshimi Yodogawa

A light quantity control apparatus includes multiple blade members each including a first curved surface-shaped portion and a hole portion, and a member including multiple protrusion portions each inserted into the hole portion of one of the blade members. The member includes a second curved surface-shaped portion shaped along the first curved surface-shaped portion of each of the blade members. The protrusion portions extend from the second curved surface-shaped portion and extend in parallel with each other.

Light quantity control apparatus, optical apparatus and image pickup apparatus

An image pickup apparatus which permits reduction of the thickness of a mechanism for holding an optical filter component and prevents failure of the optical filter component. A CCD is configured to convert an object image having passed through the photographic lens into an electric signal. A CCD plate holds the CCD. A CCD rubber is disposed on the object-side surface of the CCD, and an optical LPF is disposed on the object-side surface of the CCD rubber. An LPF cover is opposed to the CCD rubber in a manner sandwiching the optical LPF between the CCD rubber and the LPF cover itself. The LPF cover is supported by the CCD plate such that the CCD, the CCD plate, the CCD rubber, the optical LPF, and the LPF cover are combined into a unitary assembly.

Image pickup apparatus having mechanisms for holding an image pickup element

A lens barrel unit with a lens barrier highly resistant to infiltration of external dirt, dust, and water has a pair of blade members each pivotally movable about a barrier joint hole. Engaging shafts connect to the blade members. The engaging shafts extend coaxially with the barrier joint holes about which the blade members pivotally move. A barrier driving ring applies a driving force to each engaging shafts to rotate it about the corresponding barrier joint hole. The lens barrel has a pair of through holes through which the engaging shafts are rotatably inserted. The engaging shafts are driven for rotation by the driving force transmitted to hook parts of the rotary shaft. The blade members are pivotally movable in the optical axis direction. The lens barrel also serves as a barrier base plate and is disposed between the blade members and the barrier driving ring.

Lens barrel unit with lens barrier, and camera

A lens barrel having a configuration lending itself to effectively reducing the size thereof and ensuring appropriate and safe operation thereof. The lens barrel includes a guiding portion provided for a lens holding member for guiding a cam follower in a radial direction of a cam barrel; a tabular elastic member provided for the lens holding member for urging the cam follower in a guiding direction of the guiding portion; and a regulating member limiting the transfer of the cam follower that is to be moved in a direction opposite to the urging direction by the elastic member. The regulating member is configured to be brought into contact with a predetermined portion of the lens holding member.

Lens barrel

A lens barrel includes a first holding member configured to hold a lens, a second holding member configured to hold the first holding member, a protection member located at an object side of the lens in an openable and closable manner and configured to protect the lens when in a closed state, and a drive member configured to open and close the protection member. The first holding member includes an adjustment surface configured to support the first holding member rotatable with respect to the second holding member around a point located on an optical axis of the lens. The drive member is located such that the drive member overlaps the first holding member as viewed from an optical axis direction of the lens.

Lens barrel and imaging apparatus

An optical unit is transitional between a first mode for shooting and a second mode for non-shooting, and a supporting unit and a driving unit are located within a cylinder for substantially containing a tilting unit to be disposed about an optical axis as a center while are arranged so as to move together with a movable group and to avoid an imager and the retaining unit viewed from the optical axial direction.

Imaging system

At least one exemplary embodiment is directed to a driving unit which has a through-hole that guides a flexible printed board. A position of the flexible printed board with respect to the driving unit changes in an optic-axial direction in accordance with rotation of the driving unit, reducing the occurrence of image ghost caused by the flexible printed board.

Imaging device

There is provided an optical recording medium-manufacturing apparatus that is capable of avoiding breakage of a substrate while avoiding formation of a central hole off-center with respect to the substrate. A control section causes the vertical movement section to move an ultrasonic horn in directions toward and away from the cutting edge of a punching blade section to thereby cause the ultrasonic horn to press the disk-shaped substrate and at the same cause an ultrasonic generator to perform ultrasonic vibration at least from a time point at which the disk-shaped substrate is brought into contact with the cutting edge of the punching blade section to a time point at which the punching of the central hole is completed.

Optical recording medium-manufacturing apparatus

There is provided an optical recording medium-manufacturing apparatus that is capable of accurately transferring a disk-shaped apparatus during a manufacturing process, and at the same time occupies a small installation area. A control section causes a cut-forming machine installed at a cut-forming location to form a cut in a resin layer of a disk-shaped substrate, then causes an indexing mechanism to rotate a transfer stage to thereby transfer the disk-shaped substrate formed with the cut to a central hole-forming location, and then causes a punching machine to punch a central hole.

An optical recording medium-manufacturing apparatus which is capable of reducing wear of a cut-forming blade section used for forming a cut in a resin layer, without increasing the component costs of the apparatus. An ultrasonic horn includes a hollow-cylindrical cut-forming blade section for being pushed into a resin layer formed on one side of a disk-shaped substrate, thereby forming a circular cut in the resin layer. A control section controls motion of the ultrasonic horn caused by a moving mechanism. The control section causes the ultrasonic horn to be pushed in to the resin layer while causing ultrasonic vibration thereof to thereby form the cut, and while maintaining a state of ultrasonic vibration of the abutment section and a pushed-in state of the cut-forming blade section, causes the punching blade section to be pushed into the disk-shaped substrate, to form the central hole.

Growing community of inventors

Tokyo, Japan

Futoshi Kobayashi