Abstract: A measurement system includes a measurement device including a light source, and a first power meter, and one or a plurality of connection members each configured to optically connect a pair of optical fiber lines of the plurality of optical fiber lines. A first optical fiber line of the pair of optical fiber lines includes a first end and a second end, a second optical fiber line of the pair of optical fiber lines includes a third end and a fourth end, the one or plurality of connection members optically connect the second end to the fourth end, the light source causes testing light to be incident on the first end, and the first power meter measures first intensity of first output light output from the third end by causing the testing light to propagate through the pair of optical fiber lines.

Abstract: In a fiber connection structure with optical connectors according to one embodiment, among m first connector port groups, arrangement orders of colors of a plurality of the optical fibers in (2×j?1)th (j is a natural number satisfying 1?j and 2×j?m) first connector port groups are the same, and among the m first connector port groups, arrangement orders of the colors of the plurality of optical fibers in (2×j)th first connector port groups are the same. The arrangement order of the colors of the plurality of optical fibers in the (2×j)th first connector port group is a reverse order of the arrangement order of the colors of the plurality of optical fibers in the (2×j?1)th first connector port group.

Abstract: A conjugate fiber includes two or more types of polymers, and having a fiber cross section in which a plurality of interfaces is formed, in which the conjugate fiber has a value, which is obtained by dividing a sum of lengths of interfaces between two types of the polymers by an area of the fiber cross section, of 0.0010 nm?1 or more, and each of the interfaces is continuous in a fiber axis direction.

Abstract: A gear device includes an outer cylinder; an internal member at least partially housed in the outer cylinder and configured to rotate relative to the outer cylinder about a predetermined rotation axis; a first main bearing fitted into an annular space formed between the outer cylinder and the internal member; and a second main bearing fitted into the annular space and configured to define the rotation axis in cooperation with the first main bearing. A distance between a first intersection where a load action line of the first main bearing intersects with the rotation axis and a second intersection where a load action line of the second main bearing intersects with the rotation axis is set to fall within a range expressed by a predetermined inequality expression.

Abstract: One aspect of the present disclosure provides a speed reducer including a casing, a speed reduction mechanism provided in the casing, where the speed reduction mechanism is configured to reduce rotation input thereto from a drive source and output the reduced rotation, and a display unit shaped such that the display unit is attached onto a surface of the casing, where the display unit is configured to display notification information. The speed reduction mechanism includes a transmitting unit rotatably provided on the casing.

Abstract: The present application discloses a gear device provided with: an outer cylinder; an internal member at least partially housed in the outer cylinder and configured to rotate relative to the outer cylinder about a predetermined rotation axis; a first main bearing fitted into an annular space formed between the outer cylinder and the internal member; and a second main bearing fitted into the annular space and configured to define the rotation axis in cooperation with the first main bearing. A distance between a first intersection where a load action line of the first main bearing intersects with the rotation axis and a second intersection where a load action line of the second main bearing intersects with the rotation axis is set to fall within a range expressed by a predetermined inequality expression.

Abstract: A gear device includes an outer cylinder; an internal member at least partially housed in the outer cylinder and configured to rotate relative to the outer cylinder about a predetermined rotation axis; a first main bearing fitted into an annular space formed between the outer cylinder and the internal member; and a second main bearing fitted into the annular space and configured to define the rotation axis in cooperation with the first main bearing. A distance between a first intersection where a load action line of the first main bearing intersects with the rotation axis and a second intersection where a load action line of the second main bearing intersects with the rotation axis is set to fall within a range expressed by a predetermined inequality expression.

Abstract: The present application discloses a gear device provided with: an outer cylinder; an internal member at least partially housed in the outer cylinder and configured to rotate relative to the outer cylinder about a predetermined rotation axis; a first main bearing fitted into an annular space formed between the outer cylinder and the internal member; and a second main bearing fitted into the annular space and configured to define the rotation axis in cooperation with the first main bearing. A distance between a first intersection where a load action line of the first main bearing intersects with the rotation axis and a second intersection where a load action line of the second main bearing intersects with the rotation axis is set to fall within a range expressed by a predetermined inequality expression.

Abstract: A surface lighting assembly emitting light from a surface by making light from a light source incident to an incident end surface of a light guide plate is provided. The surface lighting assembly has a laminated body overlapping a diffuser sheet and an opaque plate on a surface of the light guide plate, a frame member arranging along an end edge of the laminated body, and a fastening member fixing the laminated body and the frame member in the thickness direction. The frame member is formed with U-shaped in cross section. In the first and second side surfaces, through holes are formed so as to insert the fastening member and guide it along the longitudinal direction of the frame member.

Abstract: A fixing device includes: a non-contact heating portion that includes at least one non-contact heating unit which heats a toner image on a sheet; and a pressurizing and heating unit that is provided downstream in a sheet transport direction with respect to the non-contact heating portion and that pressurizes and heats the toner image. A time from a first point of time when the toner image reaches a toner melting temperature by heating of the non-contact heating portion to a second point of time when the toner image enters the pressurizing and heating unit is set equal to or more than a predetermined time. The predetermined time is a time when a ratio between the weight of the toner in the toner image before the entrance and the sum of the weight of the toner and the weight of the carrier liquid is equal to or more than 70%.

Abstract: A fixing device includes: a non-contact heating portion that includes at least one non-contact heating unit which heats a toner image on a sheet; and a pressurizing and heating unit that is provided downstream in a sheet transport direction with respect to the non-contact heating portion and that pressurizes and heats the toner image. A time from a first point of time when the toner image reaches a toner melting temperature by heating of the non-contact heating portion to a second point of time when the toner image enters the pressurizing and heating unit is set equal to or more than a predetermined time. The predetermined time is a time when a ratio between the weight of the toner in the toner image before the entrance and the sum of the weight of the toner and the weight of the carrier liquid is equal to or more than 70%.

Abstract: A conveying device includes a cylindrical first roller, a cylindrical second roller that has a surface hardness higher than a surface hardness of the first roller, and a belt placed in a state surrounding either the first roller or the second roller. the conveying device moves an object to be conveyed by bringing the first roller and the second roller in pressure contact with each other via the belt and making the object pass through a nip portion formed of the belt and the first roller or the second roller facing the belt. A length in a lengthwise direction of an outer peripheral portion of the first roller is shorter than a length in a lengthwise direction of an outer peripheral portion of the second roller.

Abstract: A fixing device includes a magnetic flux generating section having a coil which generates a magnetic flux when applying current, a fixing roller having a heat generating layer having a thickness of 100 ?m or less formed along an outer peripheral surface of the fixing roller for generating heat through electromagnetic induction by the magnetic flux, a capacitor connected in series to the coil to constitute a series resonant circuit, and high frequency power supply circuits for applying voltage having a certain drive frequency to the series resonant circuit so as to make the fixing roller generate heat through the magnetic flux generating section. An image is fixed onto a sheet, which is transported in a state of being in pressure-contact with the outer peripheral surface of the fixing roller, by heat from the heat generating layer of the fixing roller.

Abstract: The conveying device of the present invention comprises a cylindrical first roller, a cylindrical second roller that has a surface hardness higher than a surface hardness of the first roller, and a belt placed in a state surrounding either the first roller or the second roller. The conveying device moves an object to be conveyed by bringing the first roller and the second roller in pressure contact with each other via the belt and making the object pass through a nip portion formed of the belt and the first roller or the second roller facing the belt. A length in a lengthwise direction of an outer peripheral portion of the first roller is shorter than a length in a lengthwise direction of an outer peripheral portion of the second roller.

Abstract: A fixing device includes a magnetic flux generating section having a coil which generates a magnetic flux when applying current, a fixing roller having a heat generating layer having a thickness of 100 ?m or less formed along an outer peripheral surface of the fixing roller for generating heat through electromagnetic induction by the magnetic flux, a capacitor connected in series to the coil to constitute a series resonant circuit, and high frequency power supply circuits for applying voltage having a certain drive frequency to the series resonant circuit so as to make the fixing roller generate heat through the magnetic flux generating section. An image is fixed onto a sheet, which is transported in a state of being in pressure-contact with the outer peripheral surface of the fixing roller, by heat from the heat generating layer of the fixing roller.

Abstract: When a fixing roller 1 generates heat by a magnetic flux generating section 3 during a standby time, a control section 5 rotates the fixing roller 1. This prevents the fixing roller 1 from locally generating heat and being damaged. Moreover, the control section 5 rotates and heats a pressure roller 2 during the standby time, which makes it possible to keep the pressure roller 2 at a specified temperature and to reduce a time taken for a fixing device to recover from the standby state.

Abstract: While light of R, G and B is switched from one to another and directed to a plurality of light shutter elements made of PLZT, a voltage is applied in accordance with image data between individual electrodes for the respective light shutter elements and a common electrode for all the light shutter elements. While a half-wave voltage Vr for light of R is applied to the individual electrodes, the voltage applied to the common electrode is altered to 0V, Vr-Vg and Vr-Vb in synchronization with switch of the three primary colors so that half-wave voltages for the respective colors can be applied to the light shutter elements.

Abstract: A light shutter device including a group of light shutter elements 31a, 31b 31c and 31d formed on a light shutter chip 30 made of PLZT has a construction in which an electrode gap is set wider in a element in which an electric field acts more strongly to equalize half wavelength voltages of elements almost to the same level since electric fields acting on the elements are different in strength from each other even under a prescribed voltage applied between a common electrode 32 and each of individual electrodes 33. An electrode gap of an element 31c having a weaker electric field is comparatively set narrower, whereas an electrode gap of an element 31d having a stronger electric field is set comparatively wider. Moreover, a shape of electrodes of each element are altered so as to make half wavelength voltages of elements almost equal.

Abstract: In a light shutter device in which multiple light shutter elements are located on a substrate made of PLZT, and the ON/OFF control of light is carried out by having an electrical field operate on each light shutter element from a pair of electrodes, the cross-talk phenomenon occurs among adjacent elements on the PLZT substrate, i.e., the elements (13c), (13e) and (13g). In order to effectively prevent such cross-talk, driving is carried out such that an electrical field does not operate on such elements simultaneously as a practical matter. In other words, the one line cycle is divided into periods (a) and (b), and the element (13e) is turned ON during the period (a) while the other elements (13c) and (13g) are turned ON during the period (b). Through this operation, a light shutter device in which each element has a stable amount of pass-through light may be obtained.

Abstract: In order to attain a light shutter device capable of individually suppressing variations in quantity of transmitted light among light shutter elements regardless of differences in position of a light shutter element and pattern of electrodes around a light shutter element on a substrate, a light shutter device including a group of light shutter elements 31a, 31b, 31c and 31d formed on a light shutter chip 30 made of PLZT has a construction in which an electrode gap is set wider in a element in which an electric field acts more strongly to equalize half wavelength voltages of elements almost to the same level since electric fields acting on the elements are different in strength from each other even under a prescribed voltage applied between a common electrode 32 and each of individual electrodes 33.