Abstract: A body section radiographic apparatus for serially acquiring a series of fluoroscopic images while synchronously moving a radiation source and a radiation detecting device, and obtaining a sectional image of a subject from the series of fluoroscopic images. The apparatus includes, besides the radiation source which emits a beam of radiation and the radiation detecting device which is opposed to the radiation source and has a plurality of radiation detecting elements, a synchronous moving device for moving the radiation source and the radiation detecting device synchronously with each other, and a radiation grid disposed to cover a radiation detecting plane of the radiation detecting device for removing scattered radiation. The fluoroscopic images are serially acquired while moving the radiation grid relative to the radiation detecting device to change positions where radiation transmission unevenness of the radiation grid is projected on the radiation detecting device.

Abstract: A body section radiographic apparatus for serially acquiring a series of fluoroscopic images while synchronously moving a radiation source and a radiation detecting device, and obtaining a sectional image of a subject from the series of fluoroscopic images. The apparatus includes, besides the radiation source which emits a beam of radiation and the radiation detecting device which is opposed to the radiation source and has a plurality of radiation detecting elements, a synchronous moving device for moving the radiation source and the radiation detecting device synchronously with each other, and a radiation grid disposed to cover a radiation detecting plane of the radiation detecting device for removing scattered radiation. The fluoroscopic images are serially acquired while moving the radiation grid relative to the radiation detecting device to change positions where radiation transmission unevenness of the radiation grid is projected on the radiation detecting device.

Abstract: When urinary organ contrasting inspection is performed by using a fluoroscopy for digestive organs, a region of interest such as a bladder often comes to a vicinity of a foot side end of a table top. Consequently, it is often the case that an irradiation field cannot be limited to a suitable area with respect to the region of interest and only an oblique photography can be performed. When the urinary organ contrasting inspection is performed, an X-ray tube device (1), an X-ray diaphragm (16), and an X-ray image detector (3) are interlocked to enable a foot side end of the irradiation field to be consistent with a foot side end of the X-ray image detector (3). Thus, a focal point (1A) of the X-ray tube device (1) can be moved directly above the foot side end of the X-ray image detector (3).

Abstract: When urinary organ contrasting inspection is performed by using a fluoroscopy for digestive organs, a region of interest such as a bladder often comes to a vicinity of a foot side end of a table top. Consequently, it is often the case that an irradiation field cannot be limited to a suitable area with respect to the region of interest and only an oblique photography can be performed. When the urinary organ contrasting inspection is performed, an X-ray tube device (1), an X-ray diaphragm (16), and an X-ray image detector (3) are interlocked to enable a foot side end of the irradiation field to be consistent with a foot side end of the X-ray image detector (3). Thus, a focal point (1A) of the X-ray tube device (1) can be moved directly above the foot side end of the X-ray image detector (3).

Abstract: To automate positioning operation of an X-ray tube so as to reduce the inspection time. Anatomical program selection means selects a surgery method/imaging object portion so that an imaging condition stored as an anatomical program in advance is called out and set in an X-ray generation device. Here, when an operation switch is pressed, control means moves drive means built in X-ray irradiation means parallel movement holding means and X-ray irradiation means rotation holding means so as to obtain the positional relationship between an X-ray tube and an FPD stored in correspondence with the anatomical program (such as SID and incident angle). The position of the FPD should be matched with the examinee. However, since the positional relationship between the X-ray tube and the FPD is almost constant in accordance with the surgery method/imaging object portion, it is possible to reduce the time required for positioning the X-ray tube by using this configuration.

Abstract: To automate positioning operation of an X-ray tube so as to reduce the inspection time. Anatomical program selection means selects a surgery method/imaging object portion so that an imaging condition stored as an anatomical program in advance is called out and set in an X-ray generation device. Here, when an operation switch is pressed, control means moves drive means built in X-ray irradiation means parallel movement holding means and X-ray irradiation means rotation holding means so as to obtain the positional relationship between an X-ray tube and an FPD stored in correspondence with the anatomical program (such as SID and incident angle). The position of the FPD should be matched with the examinee. However, since the positional relationship between the X-ray tube and the FPD is almost constant in accordance with the surgery method/imaging object portion, it is possible to reduce the time required for positioning the X-ray tube by using this configuration.

Abstract: In an optical signal transmission system which can perform high-speed optical transmission not lower than 1 Gbps, VCSEL has light-emission points. A core diameter of an optical fiber GI-POF is set to not lower than 200 ?m, and the light-emission points of VCSEL are arranged inside an outer periphery at an end face of GI-POF. A polymerization composition material constituting the core of GI-POF is made of a compound containing deuterated poly methacrylic ester. A wavelength of the light beam of VCSEL is set to the range of 770 nm to 810 nm.

Abstract: A lateral photodiode with increased sensitivity. The lateral photodiode includes: a substrate, a semiconductor layer, formed on the substrate, for receiving input light, an insulation layer formed on the semiconductor layer, and electrodes formed within the insulation layer. A plurality of microlenses is formed over a surface of the insulation layer (or directly on the surface) within a light receiving area of the photodiode, and the input light is focused by the microlenses in a manner so as not to be directed toward the electrodes.

Abstract: A high-speed optical transmission system includes an optical fiber for transmitting light and an optical receiver for receiving light transmitted from the optical fiber. The optical fiber is a plastic optical fiber (POF), and the optical receiver has a lateral pin structure.

Abstract: A main frame of a camera body has a CMOS image sensor and an eyepiece of an optical finder, and the lens unit popped up from the camera body has a taking lens and an objective lens of the optical finder. Light shielding walls are formed on the main frame, and light shielding walls are formed on the lens unit. When the lens unit is popped up, the light shielding walls and the light shielding walls slightly overlap each other, thus preventing a light from the optical finder from entering the CMOS image sensor. Thus, the digital camera has a lens unit popped up from a camera body and prevents unnecessary lights other than a subject light from entering an image pickup device.

Abstract: The lead can be short in length, whereby the optical module can response at high speed. An optical module is provided with an optical element mounted on a lead frame and is mounted on a substrate by way of the lead frame. The optical element is mounted so that its optical axis intersects the surface of the substrate in a state where the optical module is mounted on the substrate, and a deflector which deflects the optical path of light propagating along the optical axis of the optical element is provided.

Abstract: A nonaqueous secondary battery comprising a positive electrode and a negative electrode both containing a material capable of reversibly intercalating and deintercalating lithium, a nonaqueous electrolyte containing a lithium salt, and a separator, which has a least one protective layer on the negative electrode and/or the positive electrode. The battery has a high discharge potential, satisfactory charge and discharge cycle characteristics, and high safety.

Abstract: An objective that is a concave lens and an ocular that is a convex lens are arranged in a finder housing with a predetermined space between them. The finder housing is molded of a black plastic material. A diaphragm portion is integrally formed inside an inner peripheral portion of the finder housing and between the objective and the ocular. The diaphragm portion is formed to be as large as a lens portion of the ocular. The diaphragm portion serves to block unwanted reflected light.

Abstract: Pawls are formed on an outer peripheral portion of an operation dial at intervals equal to step rotating angles of the operation dial so that a user's finger nail can be placed on one of the pawls to rotate the dial. When the finger nail is placed on one of the pawls to rotate the operation dial, the finger nail placed on that pawl abuts against a stopper provided on a camera main body. Thus, rotation of the operation dial is stopped at each step rotating angle.

Abstract: When a wheel is rotated, first inclined portions of end surface cams provided on the wheel push corresponding cam followers formed on a movable cylinder. Accordingly, the movable cylinder holding a photographing lens is extended. Then, when each of the cam followers reaches a first flat portion of the corresponding end surface cam, the movable cylinder is placed in a photographing position. In the photographing position, when the wheel is further rotated, the cam follower is pushed by a second inclined portion of the end surface cam. The movable cylinder is thus extended. Then, when the cam follower reaches a second flat portion of the corresponding end surface cam, the movable cylinder is placed in a macro photographing position.

Abstract: In an optical signal transmission system which can perform high-speed optical transmission not lower than 1 Gbps, VCSEL has light-emission points. A core diameter of an optical fiber GI-POF is set to not lower than 200 ?m, and the light-emission points of VCSEL are arranged inside an outer periphery at an end face of GI-POF. A polymerization composition material constituting the core of GI-POF is made of a compound containing deuterated poly methacrylic ester. A wavelength of the light beam of VCSEL is set to the range of 770 nm to 810 nm.

Abstract: Pawls are formed on an outer peripheral portion of an operation dial at intervals equal to step rotating angles of the operation dial so that a user's finger nail can be placed on one of the pawls to rotate the dial. When the finger nail is placed on one of the pawls to rotate the operation dial, the finger nail placed on that pawl abuts against a stopper provided on a camera main body. Thus, rotation of the operation dial is stopped at each step rotating angle.

Abstract: When a wheel is rotated, first inclined portions of end surface cams provided on the wheel push corresponding cam followers formed on a movable cylinder. Accordingly, the movable cylinder holding a photographing lens is extended. Then, when each of the cam followers reaches a first flat portion of the corresponding end surface cam, the movable cylinder is placed in a photographing position. In the photographing position, when the wheel is further rotated, the cam follower is pushed by a second inclined portion of the end surface cam. The movable cylinder is thus extended. Then, when the cam follower reaches a second flat portion of the corresponding end surface cam, the movable cylinder is placed in a macro photographing position.

Abstract: An objective that is a concave lens and an ocular that is a convex lens are arranged in a finder housing with a predetermined space between them. The finder housing is molded of a black plastic material. A diaphragm portion is integrally formed inside an inner peripheral portion of the finder housing and between the objective and the ocular. The diaphragm portion is formed to be as large as a lens portion of the ocular. The diaphragm portion serves to block unwanted reflected light.

Abstract: A main frame of a camera body has a CMOS image sensor and an eyepiece of an optical finder, and the lens unit popped up from the camera body has a taking lens and an objective lens of the optical finder. Light shielding walls are formed on the main frame, and light shielding walls are formed on the lens unit. When the lens unit is popped up, the light shielding walls and the light shielding walls slightly overlap each other, thus preventing a light from the optical finder from entering the CMOS image sensor. Thus, the digital camera has a lens unit popped up from a camera body and prevents unnecessary lights other than a subject light from entering an image pickup device.