Abstract: Provided is a light guide member rod-like in shape and usable in a static elimination device for eliminating static electricity from a static elimination object with light. The light guide member includes a facing surface that is a surface facing the static elimination object when viewed in cross section and has an invariable protruding shape in a protruding surface shape area as a first predetermined area of at least a part in a longitudinal direction, and a diffused reflection surface provided at a position inside the light guide member within a predetermined distance from an opposite surface to the facing surface in a diffused reflection surface area as a second predetermined area of at least a part in the longitudinal direction, the second predetermined area being identical to or different from the first predetermined area.

Abstract: A gas decomposition filter unit (10A) of the present invention includes: a housing (1A) including gas decomposition pellets (3) and having a mesh (5) as a side surface vertical to a direction in which gas flows, which mesh (5) having a mesh size smaller than each of the gas decomposition pellets (3); and a light guide member 4A for causing light having entered from a light source (2) to exit toward the gas decomposition pellets (3), which light guide member 4A is provided along at least one direction so as to extend over a spatial range in which the plurality of gas decomposition pellets (3) are provided along the side surface of the housing.

Abstract: The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5??log {(A/C)/(B/C)}?2.5??(1) wherein A represents a volume resistance value (?/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (?/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (?/cm) of the carrier core in an electric field of 1000 V/cm.

Abstract: Provided are a lighting apparatus capable of improving heat-releasing performance while maintaining structural strength, subduing luminance unevenness due to uneven heat distribution, and allowing the device to be thinner, and an image display apparatus including the lighting apparatus. A heat-conducting member (6) includes: a light-source supporter having a plane facing a light-incident plane; and a plate section having a plane facing a light-emitting plane and a plane facing a heat-releasing member (5), the light-source supporter being adjacent to the plate section. On the light-source supporter, a light source (7) is positioned on the plane facing the light-incident plane so as to face the light-incident plane, the plane of the plate section which faces the heat-releasing member (5) contacts a plane of the heat-releasing member (5) which faces a light guide member, and a centroid of the plate section deviates along a direction parallel to both the light-incident and light-emitting planes.

Abstract: An electron emitting element (1) includes a substrate (2), an upper electrode (3), and a fine particle layer (4) sandwiched between the substrate (2) and the upper electrode (3). The fine particle layer (4) includes metal fine particles (6) with high resistance to oxidation, and insulating fine particles (5) larger in size than the metal fine particles (6). The electron emitting element (1) can steadily emit electrons not only in vacuum but also in the atmosphere. Further, the electron emitting element (1) can work without electric discharge so that harmful substances such as ozone, NOx, or the like are scarcely generated. Accordingly, degradation of the electron emitting element (1) due to oxidation does not occur. Therefore, the electron emitting element (1) has a long life and can steadily work continuously for a long period of time even in the atmosphere.

Abstract: A charging device (10) includes electrospray means for inducing electrospraying through application of a voltage to an incoming liquid (11), in order to produce charged liquid droplets (13). The device (10) charges a photoreceptor drum (1) by means of the liquid droplets (13). Hence, the invention provides a charging device capable of reducing ozone production while preventing the charging device and the electrostatic latent image carrier from degrading or wearing out from friction between the device and the carrier and provides also an image forming device incorporating the charging device.

Abstract: A heat exchanger (1) includes: a heat sink (3) which is in contact with a heating element (2); and an electron emitting element (4) which is provided so as to be separated from the heat sink (3) by a space and which provides electrons to the heat sink (3) via air in the space. The electron emitting element (4) includes: an electrode substrate (7); a thin-film electrode (9); a power supply (10) which applies a voltage between the electrode substrate (7) and the thin-film electrode (8); and an electron acceleration layer (8) which accelerates the electrons inside itself in response to the voltage applied by the power supply (10) so that the electrons are emitted from the thin-film electrode (9). The electron acceleration layer (8) is made at least partially of an insulating material. As a result, the heat exchanger (1) has a heat exchange capability which can be maintained and improved independently of a structure in which electric field concentration tends to occur.

Abstract: An electron emitting element (1) includes a substrate (2), an upper electrode (3), and a fine particle layer (4) sandwiched between the substrate (2) and the upper electrode (3). The fine particle layer (4) includes metal fine particles (6) with high resistance to oxidation, and insulating fine particles (5) larger in size than the metal fine particles (6). The electron emitting element (1) can steadily emit electrons not only in vacuum but also in the atmosphere. Further, the electron emitting element (1) can work without electric discharge so that harmful substances such as ozone, NOx, or the like are scarcely generated. Accordingly, degradation of the electron emitting element (1) due to oxidation does not occur. Therefore, the electron emitting element (1) has a long life and can steadily work continuously for a long period of time even in the atmosphere.

Abstract: The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5??log {(A/C)/(B/C)}?2.5 ??(1) wherein A represents a volume resistance value (Q/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (?/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (?/cm) of the carrier core in an electric field of 1000 V/cm.

Abstract: A charging device (10) includes electrospray means for inducing electrospraying through application of a voltage to an incoming liquid (11), in order to produce charged liquid droplets (13). The device (10) charges a photoreceptor drum (1) by means of the liquid droplets (13). Hence, the invention provides a charging device capable of reducing ozone production while preventing the charging device and the electrostatic latent image carrier from degrading or wearing out from friction between the device and the carrier and provides also an image forming device incorporating the charging device.