Abstract: An image capture device including: a light-receiving element; a casing enclosing the light-receiving element; a space temperature sensor measuring a temperature of a space, which is part of an inside portion of the casing; a light-receiving-element temperature sensor measuring a temperature of the light-receiving element; cooling means for cooling the light-receiving element so that the temperature of the light-receiving element will be a predetermined temperature; temperature-information storage means for storing information concerning an association between a temperature of the space and a preset temperature, the information being used for maintaining the temperature of the light-receiving element at a constant value; and control means for obtaining, on the basis of the temperature of the space, the preset temperature corresponding to the temperature of the space by referring to the temperature-information storage means, and for controlling the cooling means so that the temperature of the light-receiving el

Abstract: Specifying defective pixels can be done with higher precision. With the imaging apparatus 1, defective pixels are specified after NUC process with respect to initial good pixels, as well as correction with respect to initial defective pixels, has been done, and therefore it is possible to specify defective pixels with higher precision as compared with the case where defective pixels are specified without carrying out the NUC process and correction with respect to initial defective pixels. In addition, captured-image data acquired by defective pixels other than the initial defective pixels can be corrected in the controlling means 40, because pixels in which defect other than the initial defect is caused can be specified by specifying defective pixels after corrected captured-image data has been generated in a manner such that captured-image data which is acquired by the image capturing unit 10 is corrected on the basis of information for specifying an initial defective pixel.

Abstract: An image processing apparatus includes an image data storage unit, an operation unit, a generation unit, a display unit and a control unit. The image data storage unit stores plural pieces of image data. The operation unit allows a user to input an instruction. The generation unit outputs one of a first list of the stored image data in a first display form and a second list of the stored image data in a second display form according to the instruction. The control unit controls the display unit to display the one. When the generation unit switches from outputting the one to outputting the other in accordance with the input instruction, the control unit controls the display unit to display the other so that image data, which is displayed at a particular position in a previous display form, is displayed at a particular position in a current display form.

Abstract: A foreign matter detector and a foreign matter detecting method are provided, with which foreign matter detection performance can be improved. The foreign matter detector comprises: a means for irradiating first inspection light and second inspection light to an inspection area such that their incident planes are perpendicular to each other; a measuring means for measuring the spectrum of reflected light, the reflected light being a reflection of the inspection light at the inspection area; and a means for determining, by analyzing the spectrum of the reflected light, whether any foreign matter is intermingled or not.

Abstract: A vital tissue discrimination device, which includes infrared spectrum acquiring section (1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13 and 14) for acquiring infrared spectrum information from a vital tissue and an operating section (11) for discriminating normal from abnormal of the vital tissue based on the infrared spectrum information obtained by the infrared spectrum acquiring section, wherein the operating section (11) calculates a micro-cycle fluctuation component of the infrared spectrum information and discriminates normal from abnormal of the vital tissue based on the micro-cycle fluctuation component of the infrared spectrum information.

Abstract: In menu operating method and device and an image processing apparatus using the same, a setting frame for operating a setting menu is constructed by a setting menu display area and a hierarchical menu display area. A setting menu to be operated is displayed in the setting menu display area, and menu item buttons corresponding to setting menus on respective layers contained in a hierarchical menu are displayed in a listing style according to its hierarchical structure in the hierarchical menu display area. At this time, an operator can obtain information such as the hierarchical structure of menus and the position of a setting menu being operated on each setting frame, and the operability of the hierarchical menu is enhanced.

Abstract: An image processing apparatus includes an image data storage unit, an operation unit, a generation unit, a display unit and a control unit. The image data storage unit stores plural pieces of image data. The operation unit allows a user to input an instruction. The generation unit outputs one of a first list of the stored image data in a first display form and a second list of the stored image data in a second display form according to the instruction. The control unit controls the display unit to display the one. When the generation unit switches from outputting the one to outputting the other in accordance with the input instruction, the control unit controls the display unit to display the other so that image data, which is displayed at a particular position in a previous display form, is displayed at a particular position in a current display form.

Abstract: A optical fiber connector cord capable of being detachably attached to a receptacle fixed to an optical apparatus includes an optical fiber having at least one hole which extends along an optical axis, a plug having a fiber hole through which the optical fiber extends and which is capable of being fitted into the receptacle, a first sealing member which is provided on an outer peripheral surface of the plug and which seals a gap between the plug and the receptacle along the outer periphery of the plug, and a second sealing member which seals a gap between an inner surface of the plug's fiber hole and the optical fiber along the outer periphery of the optical fiber, so that holes in the optical fiber are effectively prevented from communicating with the atmosphere. In addition, an optical coupling set includes the optical fiber connector cord and the receptacle.

Abstract: A drawing apparatus 1 comprises a drawing furnace 11, a heating furnace 21, and a resin curing section 31. An optical fiber 3 drawn upon heating in the drawing furnace 11 is sent to a heating furnace 21, where a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The temperature of a heater 22 of the heating furnace 21 at the furnace center is set to a temperature within the range from 1200 to 1600° C. Thereafter, the optical fiber 3 is coated with a UV resin liquid 52 by a coating die 51, and the UV resin 52 is cured in the resin curing section 31, so as to yield a coated optical fiber 4.

Abstract: The present invention provides a method of elongating a glass preform having holes extending in the longitudinal direction while suppressing excess shrinkage of the holes. In the method of elongating a glass preform of the present invention, both ends of the glass preform having the holes extending in the longitudinal direction are held by a first holding member and a second holding member, respectively; and the glass preform is successively heat-melted from one of the ends by a heating means while the distance between the first holding member and the second holding member is increased in the longitudinal direction, to elongate the glass preform. The glass preform is elongated by heat-melting with the heating means in a manner such that the temperature T of the softened portion satisfies a relation represented by 11[° C./mm]·D+860[° C.]<T<17[° C./mm]·D+880[° C.

Abstract: A optical fiber connector cord capable of being detachably attached to a receptacle fixed to an optical apparatus includes an optical fiber having at least one hole which extends along an optical axis, a plug having a fiber hole through which the optical fiber extends and which is capable of being fitted into the receptacle, a first sealing member which is provided on an outer peripheral surface of the plug and which seals a gap between the plug and the receptacle along the outer periphery of the plug, and a second sealing member which seals a gap between an inner surface of the plug's fiber hole and the optical fiber along the outer periphery of the optical fiber, so that holes in the optical fiber are effectively prevented from communicating with the atmosphere. In addition, an optical coupling set includes the optical fiber connector cord and the receptacle.

Abstract: The present invention provides a method of elongating a glass preform having holes extending in the longitudinal direction while suppressing excess shrinkage of the holes. In the method of elongating a glass preform of the present invention, both ends of the glass preform having the holes extending in the longitudinal direction are held by a first holding member and a second holding member, respectively; and the glass preform is successively heat-melted from one of the ends by a heating means while the distance between the first holding member and the second holding member is increased in the longitudinal direction, to elongate the glass preform. The glass preform is elongated by heat-melting with the heating means in a manner such that the temperature T of the softened portion satisfies a relation represented by 11[° C./mm].D+860[° C.]<T<17[° C./mm].D+880[° C.

Abstract: A drawing apparatus 1 has a drawing furnace 11, a heating furnace 21, and a resin curing section 31. The drawing furnace 11 has a muffle tube 13 to which an He gas supply passage 15 from an He gas supply section 14 is connected so as to supply He gas. The optical fiber 3 drawn upon heating by the drawing furnace 11 is fed to the heating furnace 21, whereby a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The heating furnace 21 has a muffle tube 23 to which an N2 gas supply passage 25 from an N2 gas supply section 24 is connected so as to supply N2 gas. Thereafter, the optical fiber 3 is coated with a UV resin 39 by a coating die 38, and the UV resin 39 is cured in the resin curing section 31, whereby a coated optical fiber 4 is formed.

Abstract: The present invention provides a method of producing an optical fiber having a decreased transmission loss and air holes extending in the axial direction of the fiber. The method of the present invention includes a first step of preparing an optical fiber preform having through holes for forming the air holes, a second step of drawing the optical fiber preform in a drawing furnace to form an optical fiber having the air holes, and a third step of heating the optical fiber at a temperature in the range of 900° C. to 1300° C. in an additional heating furnace provided downstream of the drawing furnace.

Abstract: A drawing apparatus 1 has a drawing furnace 11 for heating and drawing an optical fiber preform 2, and a carbon heater 13 is disposed in this drawing furnace 11. The carbon heater 13 has a heating portion the length of which in a drawing direction is set to not less than 280 mm. The carbon heater 13 heats the preform so that a maximum temperature on the surface of the optical fiber preform 2 in the drawing furnace 11 becomes below 1800° C. The optical fiber preform 2 is drawn in a state in which the temperature of the muffle tube 12 of the drawing furnace 11 is kept below 1800° C., so that atomic arrangement in the optical fiber preform 2 becomes relatively aligned in a state of reduced randomness of atomic arrangement. This permits the optical fiber 3 to be drawn as reflecting the reduced randomness state of atomic arrangement, whereby the optical fiber 3 can be obtained with reduced Rayleigh scattering intensity and lowered transmission loss.

Abstract: An optical fiber preform 2 having a viscosity ratio R&eegr;=&eegr;0/&eegr;t of 2.5 or less between the core average viscosity &eegr;0 and the total average viscosity &eegr;t is prepared, and is drawn by a drawing furnace 11 so as to yield an optical fiber 3, which is then heated to a temperature within a predetermined range so as to be annealed by a heating furnace 21 disposed downstream the drawing furnace 11. Here, upon annealing in the heating furnace 21, the fictive temperature Tf within the optical fiber lowers, thereby reducing the Rayleigh scattering loss. At the same time, the viscosity ratio condition of R&eegr;≦2.5 restrains the stress from being concentrated into the core, thereby lowering the occurrence of structural asymmetry loss and the like. Hence, an optical fiber which can reduce the transmission loss caused by the Rayleigh scattering loss and the like as a whole, and a method of making the same can be obtained.

Abstract: A drawing apparatus 1 has a drawing furnace 11, a heating furnace 21, and a resin curing section 31. The drawing furnace 11 has a muffle tube 13 to which an He gas supply passage 15 from an He gas supply section 14 is connected so as to supply He gas. The optical fiber 3 drawn upon heating by the drawing furnace 11 is fed to the heating furnace 21, whereby a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The heating furnace 21 has a muffle tube 23 to which an N2 gas supply passage 25 from an N2 gas supply section 24 is connected so as to supply N2 gas. Thereafter, the optical fiber 3 is coated with a UV resin 39 by a coating die 38, and the UV resin 39 is cured in the resin curing section 31, whereby a coated optical fiber 4 is formed.

Abstract: An optical fiber preform 2 having a viscosity ratio R&eegr;=&eegr;0/&eegr;t of 2.5 or less between the core average viscosity &eegr;0 and the total average viscosity &eegr;t is prepared, and is drawn by a drawing furnace 11 so as to yield an optical fiber 3, which is then heated to a temperature within a predetermined range so as to be annealed by a heating furnace 21 disposed downstream the drawing furnace 11. Here, upon annealing in the heating furnace 21, the fictive temperature Tf within the optical fiber lowers, thereby reducing the Rayleigh scattering loss. At the same time, the viscosity ratio condition of R&eegr;≦2.5 restrains the stress from being concentrated into the core, thereby lowering the occurrence of structural asymmetry loss and the like. Hence, anoptical fiber which can reduce the transmission loss caused by the Rayleigh scattering loss and the like as a whole, and a method of making the same can be obtained.

Abstract: In menu operating method and device and an image processing apparatus using the same, a setting frame for operating a setting menu is constructed by a setting menu display area and a hierarchical menu display area. A setting menu to be operated is displayed in the setting menu display area, and menu item buttons corresponding to setting menus on respective layers contained in a hierarchical menu are displayed in a listing style according to its hierarchical structure in the hierarchical menu display area. At this time, an operator can obtain information such as the hierarchical structure of menus and the position of a setting menu being operated on each setting frame, and the operability of the hierarchical menu is enhanced.

Abstract: A glass soot deposit is produced at a high deposition rate by blowing a gaseous glass-forming raw material together with a fuel gas from a combustion burner in a closed muffle, hydrolyzing the glass-forming raw material in a flame to generate glass soot, and depositing the glass soot on a tip end or a peripheral surface of a starting member which is rotated to form a glass soot deposit, in which a lowest surface temperature of the muffle tube is maintained at 50.degree. C. or higher and an average surface temperature of the muffle is maintained in a range between 50.degree. C. and 150.degree. C., whereby corrosion of the muffle is prevented.