Canon Kabushiki Kaisha

Jfe Chemical Corporation

Yasuda, Toshiyuki

Toshiyuki Yasuda

Yoshihiro Saito

Takaaki Nakabayashi

Toshiki Ishino

Toshiyuki Okuma

Kazuhide Miyata

Hiroshi Komatsu

Shigeru Takeshita

Hiroaki Mori

Tetsuo Hachiya

Naoyuki Kitamura

Naohiro Matsushima

An information processing apparatus comprising first and second display units for respectively displaying first and a second composite images for the two eyes of a user, comprising: a moving unit configured to move positions of the first and second display units; a detecting unit configured to detect moving amounts of the first and second display units; first and second image capturing units configured to respectively obtain first and second captured images; an extracting unit configured to generate first and second extracted images by respectively extracting portions of the first and second captured images in extraction ranges associated with the moving amounts; and a composite image generating unit configured to generate the first and second composite images by respectively compositing first and second CG images with the first and second extracted images.

Information processing apparatus

A head-mounted device to be worn on a user's head includes a first pressing member to press, for example, an occipital region, a second pressing member to press, for example, a parietal region, and first and second linear members connected to the first and second pressing members respectively. The first and second linear members are guided so that a change in lengths of the first and second linear members causes the first and second pressing members to move in the first and second directions respectively. An adjustment unit to adjust the lengths of the first and second linear members includes first and second wind-up units connected to a rotational operation member and to wind up the first and second linear members respectively.

Head-mounted device

A head-mountable apparatus mountable on a head of an observer comprises a first pressing member which presses a first portion of the head; a second pressing member which presses a second portion of the head; and an adjustment unit adapted to move the first pressing member and the second pressing member to positions where the first pressing member and the second pressing member respectively press the first portion and the second portion.

Head-mountable apparatus

A head-mounted device for mounting on the head of a user includes a first pressing member for pressing a first portion of the head from a first direction; a second pressing member for pressing a second portion of the head from a second direction that is different from the first direction; a string member that concatenates the first pressing member and the second pressing member; a structure that guides the string member so that the first and the second pressing members move in the first and the second directions, respectively, according to changes in the length of the string member; and an adjusting unit that adjusts the length of the string member.

The invention provides a head mounted image-sensing display device including a pair of image-sensing units (R,L) that stereoscopically capture a physical space and output a pair of stereoscopic images, and display units (R,L) for displaying images for the right eye and images for the left eye. Image sensing parameters that are previously measured for the image-sensing units are stored in image sensing parameter storage units (R,L). As a result, a difference in parallax between captured images of a physical space and images of a virtual object is reduced.

Head mounted image-sensing display device and composite image generating apparatus

A lens apparatus which has a small size but allows a higher magnification and an image-pickup apparatus including the lens apparatus are disclosed. The lens apparatus provides a variable magnification by moving a first lens and a second lens placed closer to an image plane than the first lens in the direction of an optical axis. The lens apparatus includes a first driving member which is rotated around the optical axis to move the first lens in the optical axis direction, a second driving member which moves the second lens by itself in the optical axis direction, and a driving mechanism which at least drives the rotation of the first driving member. The second driving member is moved in the optical axis direction relative to the first driving member by the rotation of the first driving member.

Lens apparatus and image-pickup apparatus

A lens barrier driving device that prevents an increase in the number of parts constituting a lens barrier driving mechanism and avoids light leakage from a penetrating portion. A lens barrier is disposed on an object side of a lens and is openable and closable. A transmission member transmits power to a barrier driving member. The barrier driving member opens and closes the lens barrier. A cam member is able to engage with the transmission member. A first member holds the cam member. A second member is provided with a penetrating portion. The penetrating portion is disposed between the lens barrier and the first member. A rib portion of the transmission member penetrates the penetrating portion. A light shielding portion of the transmission member shields a incident light through the penetrating portion.

Lens barrier driving device, lens barrel, and image pickup apparatus

There is provided an optical device which comprises a fixed barrel, a movable cam ring, and collars and abutments. The movable cam ring is shifted relative to the fixed barrel to move an optical unit, the movable cam ring being fitted to the fixed barrel. Collars and abutments can be engaged with each other when the movable cam ring is in a predetermined positional relationship with respect to the fixed barrel. The collars and abutments preventing the movable cam ring from being disengaged from the fixed barrel and displaced in a direction along an optical axis relative to the fixed barrel.

Optical device

A lens barrel and an optical device that can be reduced in size while maintaining high optical performance. A lens barrel has a cam ring () that is disposed for rotation about an optical axis. A linked member () can advance and recede in a direction of the optical axis with rotation of the cam ring about the optical axis. First and second cam grooves () is formed in the cam ring for guiding advancement and receding of the linked member in the direction of the optical axis. First and second cam-followers () are provided in the linked member and are engageable with the first cam groove and the second cam groove, respectively. The second cam-follower is disengageable from its corresponding second cam groove. A depth of the second cam groove in a position where the second cam-follower is introduced into the second cam groove is deeper that of the second cam groove at a different position.

Lens barrel and optical device

A camera which causes a lens unit to move accurately through a cam member is disclosed. The camera comprises a lens unit with movable lenses making up a view finder optical system, a cam member having a cam which engages with the lens unit for driving the lens unit in conjunction with the operation of the image-taking optical system, a first bias member which biases the cam member in one of moving directions of the cam member, and a second bias member which biases the lens unit so as to contact the cam surface.

Camera including cam member for interlocking image-taking optical system and view finder optical system of the camera

A method for preparing bromofluorenes includes a step of dispersing a compound selected from the group consisting of fluorene, fluorenone, and derivatives of fluorene and fluorenone in water to prepare a disperse system. Bromination is initiated by adding bromine Brinto the disperse system. Thus, bromofluorenes can be efficiently and economically prepared without using any environmentally harmful organic solvent requiring a high cost to dispose of.

Growing community of inventors

Kawasaki, Japan

Toshiyuki Yasuda