Abstract: An eyeball movement detection device (1) detects an eyeball movement of an eye in a side-to-side direction on the basis of a time shift in difference between an output from a far-infrared sensor (11) having directivity to an edge of an exposed surface of an eyeball on the side of the inner corner of the eye and an output from a far-infrared sensor (12) having directivity to an edge of the exposed surface of the eyeball on the side of the outer corner of the eye. This makes it possible to detect an eyeball movement in a noncontact manner, with a light weight, and with low power consumption.

Abstract: An eyeball movement detection device (1) detects an eyeball movement of an eye in a side-to-side direction on the basis of a time shift in difference between an output from a far-infrared sensor (11) having directivity to an edge of an exposed surface of an eyeball on the side of the inner corner of the eye and an output from a far-infrared sensor (12) having directivity to an edge of the exposed surface of the eyeball on the side of the outer corner of the eye. This makes it possible to detect an eyeball movement in a noncontact manner, with a light weight, and with low power consumption.

Abstract: A jack (10) of the invention includes a holding body (9) having an insertion hole (15) into which an optical plug is able to be inserted, a window material (6) through which infrared radiation passing through the insertion hole (15) is transmitted, and a light reception unit (2) which detects infrared radiation of 6 ?m or more and 15 ?m or less transmitted through the window material (6). The window material (6) is provided in the holding body (9) so as to prevent water from intruding into the light reception unit (2), and arranged at a bottom of the insertion hole (15). Thereby, it is possible to give a waterproof property to an element which receives infrared radiation without limitation to design or aesthetic appearance of an electronic apparatus.

Abstract: A jack (10) of the invention includes a holding body (9) having an insertion hole (15) into which an optical plug is able to be inserted, a window material (6) through which infrared radiation passing through the insertion hole (15) is transmitted, and a light reception unit (2) which detects infrared radiation of 6 ?m or more and 15 ?m or less transmitted through the window material (6). The window material (6) is provided in the holding body (9) so as to prevent water from intruding into the light reception unit (2), and arranged at a bottom of the insertion hole (15). Thereby, it is possible to give a waterproof property to an element which receives infrared radiation without limitation to design or aesthetic appearance of an electronic apparatus.

Abstract: There is provided an image display device which is kept from wastefully consuming electric power while an eyelid is closed by blinks in a waking state. A signal from an FIR sensor (14) is inputted to a positive (+) terminal of a comparator (32) via an amplifier (31) while a threshold (Th) is inputted to a negative (?) terminal of the comparator (32). When an eyelid (1) is closed more than necessary to block all the field of view, a level of the signal inputted from the FIR sensor (14) to the positive (+) terminal of the comparator (32) is higher than the level of the threshold (Th). Thus, a high-level signal is outputted from the comparator (32) and a low-level signal is inputted to a driver (34) via an inverter (33), so that the driver (34) turns off a backlight (12).

Abstract: At least a plurality of light-receiving regions for receiving remote control signals, respectively, in a form of incident light and performing photoelectric conversion of the signals are provided in one common mold package. The remote control receiver includes a first signal processing circuit for adding up signals outputted by the plurality of light-receiving regions and, based on a resulting signal, demodulating and outputting the remote control signal. The remote control receiver also includes a second signal processing circuit for calculating a difference between the signals outputted by the plurality of light-receiving regions to obtain and output a directional signal representing a direction in which the incident light has been incident on the plurality of light-receiving regions.

Abstract: A device unit 46 is constituted by including a lead frame 50 on which a light-emitting mold portion 48 and a light-receiving mold portion 49 are mounted. Moreover, an exterior casing for housing the device unit 46 is constituted of two parts dividable into an upper casing 45 and a lower casing 47. Thus, by holding the device unit 46 by the upper casing 45 and the lower casing 47, external connection terminals 43 constructed of one end portion of the lead frame 50 can be fixed to the exterior casing and positioned in a connector portion 42. Therefore, by reducing the parts count to three and allowing the device unit 46 to be fixed to the exterior casing by a fixed fitting mechanism of the upper casing 45 and the lower casing 47 without performing welding, soldering, thermal caulking or the like, the assembling becomes easy.

Abstract: A device unit 46 is constituted by including a lead frame 50 on which a light-emitting mold portion 48 and a light-receiving mold portion 49 are mounted. Moreover, an exterior casing for housing the device unit 46 is constituted of two parts dividable into an upper casing 45 and a lower casing 47. Thus, by holding the device unit 46 by the upper casing 45 and the lower casing 47, external connection terminals 43 constructed of one end portion of the lead frame 50 can be fixed to the exterior casing and positioned in a connector portion 42. Therefore, by reducing the parts count to three and allowing the device unit 46 to be fixed to the exterior casing by a fixed fitting mechanism of the upper casing 45 and the lower casing 47 without performing welding, soldering, thermal caulking or the like, the assembling becomes easy.

Abstract: At least a plurality of light-receiving regions for receiving remote control signals, respectively, in a form of incident light and performing photoelectric conversion of the signals are provided in one common mold package. The remote control receiver includes a first signal processing circuit for adding up signals outputted by the plurality of light-receiving regions and, based on a resulting signal, demodulating and outputting the remote control signal. The remote control receiver also includes a second signal processing circuit for calculating a difference between the signals outputted by the plurality of light-receiving regions to obtain and output a directional signal representing a direction in which the incident light has been incident on the plurality of light-receiving regions.

Abstract: In the optical distance measuring device of the invention, a second optical path is formed by a transparent resin formed in a region where a light emitting element and a second light receiving part are connected directly to each other. As the temperature increases, the length of the optical path increases while its refractive index decreases, so that the optical path length itself becomes generally constant. Therefore, the length of the second optical path can be kept generally constant independently of temperature. Further, a first light receiving part for a first optical path and a second light receiving part for the second optical path 18 are formed in one identical light receiving element. Therefore, characteristic variations of the first light receiving part and the second light receiving part due to temperature can be reduced. This optical distance measuring device can achieve high distance measuring accuracy even under environments of intense temperature changes.

Abstract: A rotation-sensored rotary connector includes: a rotary connector for electrically connecting an electrical component installed on a steering to a vehicle-body side; and a rotation sensor for detecting a rotational angle of the steering; wherein the rotation sensor includes a rotor to be directly mounted on a steering shaft, and the rotary connector includes a rotor to be rotated in compliance with the rotor of the rotation sensor, thereby allowing to detect the rotational angle of the steering with an excellent precision.

Abstract: In a rotation sensor including a rotor 10 mounted to a rotating shaft S and having a conductive sensing unit 12 whereof the width varies in the circumferential direction; and stationary cores 31, 32, 41, 42 each including an exciting coil for forming a magnetic circuit with respect to the sensing unit of the rotor by allowing AC exciting current to flow therein, and a core body formed of magnetic material and retaining the exciting coil, and being mounted to the fixed member and disposed so as to oppose to the sensing unit of the rotor at a distance in the axial direction of the shaft, the stationary cores are disposed at two positions each having a central angle with respect to the axis of the shaft other than substantially 180°, so that the rotation sensor which is superior in mountability, is low in cost, and is superior in detection accuracy over a wider range is provided.

Abstract: A rotation sensor comprising: a stator of the rotation sensor; a rotator arranged around the stator in a rotatable manner relative to the stator, so as to detect a rotated-angle variation of a detection target correspondingly to an overlapped state of the rotator with the stator; and a casing for accommodating the rotator therein; wherein at least a part of an outer peripheral surface of the rotator is slidable relative to an inner surface of the casing for accommodating the rotator and stator therein, so that the rotator is constantly smoothly rotated, to thereby accurately detect the rotated-angle variation of the measurement target.

Abstract: In a rotation sensor including a rotor 10 mounted to a rotating shaft S and having a conductive sensing unit 12 whereof the width varies in the circumferential direction; and stationary cores 31, 32, 41, 42 each including an exciting coil for forming a magnetic circuit with respect to the sensing unit of the rotor by allowing AC exciting current to flow therein, and a core body formed of magnetic material and retaining the exciting coil, and being mounted to the fixed member and disposed so as to oppose to the sensing unit of the rotor at a distance in the axial direction of the shaft, the stationary cores are disposed at two positions each having a central angle with respect to the axis of the shaft other than substantially 180°, so that the rotation sensor which is superior in mountability, is low in cost, and is superior in detection accuracy over a wider range is provided.

Abstract: In an optical transmission and reception module, a partitioning member separating a light emitting device and a light receiving device from each other includes a partitioning plate having a concave surface, an engaging portion to which the partitioning plate is fixed, a holding portion holding the engaging portion movably, and a leaf spring for pressing the engaging portion against an optical plug. An end surface of an optical fiber is convex and projects from a front end of the optical plug. When the end surface of the optical plug is in contact with an engaging surface of the engaging portion, a gap is generated between the end surface of the optical fiber and a surface opposed thereto.

Abstract: A rotation sensor comprising: a stator of the rotation sensor; a rotator arranged around the stator in a rotatable manner relative to the stator, so as to detect a rotated-angle variation of a detection target correspondingly to an overlapped state of the rotator with the stator; and a casing for accommodating the rotator therein; wherein at least a part of an outer peripheral surface of the rotator is slidable relative to an inner surface of the casing for accommodating the rotator and stator therein, so that the rotator is constantly smoothly rotated, to thereby accurately detect the rotated-angle variation of the measurement target.

Abstract: A rotation-sensored rotary connector includes: a rotary connector for electrically connecting an electrical component installed on a steering to a vehicle-body side; and a rotation sensor for detecting a rotational angle of the steering; wherein the rotation sensor includes a rotor to be directly mounted on a steering shaft, and the rotary connector includes a rotor to be rotated in compliance with the rotor of the rotation sensor, thereby allowing to detect the rotational angle of the steering with an excellent precision.

Abstract: In an optical transmission and reception module, a partitioning member separating a light emitting device and a light receiving device from each other includes a partitioning plate having a concave surface, an engaging portion to which the partitioning plate is fixed, a holding portion holding the engaging portion movably, and a leaf spring for pressing the engaging portion against an optical plug. An end surface of an optical fiber is convex and projects from a front end of the optical plug. When the end surface of the optical plug is in contact with an engaging surface of the engaging portion, a gap is generated between the end surface of the optical fiber and a surface opposed thereto.

Abstract: In an optical transmission and reception module, a partitioning member separating a light emitting device and a light receiving device from each other includes a partitioning plate having a concave surface, an engaging portion to which the partitioning plate is fixed, a holding portion holding the engaging portion movably, and a leaf spring for pressing the engaging portion against an optical plug. An end surface of an optical fiber is convex and projects from a front end of the optical plug. When the end surface of the optical plug is in contact with an engaging surface of the engaging portion, a gap is generated between the end surface of the optical fiber and a surface opposed thereto.

Abstract: In an optical transmit-receive module, an optical fiber plug connected with an optical fiber for optical transmission is removably inserted in a housing. Within the housing, there are provided a branching type light guide, and an optical semiconductor device giving an optical signal to the branching type light guide and receiving an optical signal from the branching type light guide. When the optical fiber plug is inserted in the housing, it is optically connected with the branching type light guide through a light-permeable member having a refractive index approximately equal to refractive indices of the optical fiber and the branching type light guide.