Abstract: At least one exemplary embodiment is directed to a four-group zoom lens system including, in order from the object side to the image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power and including a negative first lens sub-unit and a positive second lens sub-unit in order from the object side to the image side, and a fourth lens unit having positive refractive power. During zooming, the second and fourth lens units can be moved along an optical axis and the second lens sub-unit can be moved substantially orthogonal to the optical axis. When f1 represents the focal length of the first lens unit, f3a and f3b represents the focal length of the first and second lens sub-units, respectively, satisfy 0.4<f3b/f1<0.70 and 0.5<|f3b/f3a|<0.8.

Abstract: The present invention provides a tetrazoyloxime derivative which is less likely to cause chemical injury to useful plants and is also superior in chemical efficacy to a conventional hetero ring-substituted oxime derivative. A tetrazoyloxime derivative represented by the general formula (1): X represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a cyano group, a methanesulfonyl group, a nitro group, a trifluoromethyl group, or an aryl group; A represents a 1-alkyltetrazoyl-5-yl group or a 5-alkyltetrazoyl-1-yl group; and Het represents a pyridyl group having a substituent or a thiazoyl group having a substituent, and a plant disease controlling agent containing the same as an active ingredient are disclosed.

Abstract: At least one exemplary embodiment is directed to a zoom lens system, which includes, in order from an object side to an image side, a first lens unit of positive optical power, a second lens unit of negative optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power. During zooming, each of the lens units moves.

Abstract: At least one exemplary embodiment is directed to a zoom lens system which includes a first lens unit having a positive optical power, a second lens unit having a negative optical power and positioned on the image side of the first lens unit, a third lens unit having a positive optical power and positioned on the image side of the second lens unit, a fourth lens unit having a positive optical power and positioned on the image side of the third lens unit, and an F-number determining member. The F-number determining member can be positioned between a vertex of an object-side lens surface of a lens that is nearest to an object side in the third lens unit and an intersecting point of the object-side lens surface and a peripheral portion of the lens in a direction of an optical axis.

Abstract: The present invention provides a tetrazoyloxime derivative which is less likely to cause chemical injury to useful plants and is also superior in chemical efficacy to a conventional hetero ring-substituted oxime derivative. A tetrazoyloxime derivative represented by the general formula (1): X represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a cyano group, a methanesulfonyl group, a nitro group, a trifluoromethyl group, or an aryl group; A represents a 1-alkyltetrazoyl-5-yl group or a 5-alkyltetrazoyl-1-yl group; and Het represents a pyridyl group having a substituent or a thiazoyl group having a substituent, and a plant disease controlling agent containing the same as an active ingredient are disclosed.

Abstract: At least one exemplary embodiment is directed to a four-group zoom lens system including, in order from the object side to the image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power and including a negative first lens sub-unit and a positive second lens sub-unit in order from the object side to the image side, and a fourth lens unit having positive refractive power. During zooming, the second and fourth lens units can be moved along an optical axis and the second lens sub-unit can be moved substantially orthogonal to the optical axis. When f1 represents the focal length of the first lens unit, f3a and f3b represents the focal length of the first and second lens sub-units, respectively, satisfy 0.4<f3b/f1<0.70 and 0.5<|f3b/f3a|<0.8.

Abstract: A zoom lens system capable of correcting a secondary spectrum is disclosed. The zoom lens system includes a first lens unit with a positive optical power, a second lens unit with a negative optical power, an aperture stop, and a rear lens component including at least one lens unit in an order from an object side to an image side. In the zoom lens system, during zooming from a wide angle end to a telephoto end, an interval between the first lens unit and the second lens unit increases, and an interval between the second lens unit and the aperture stop decreases. Then, a material satisfying the following conditions: ?d1n<35 ?gF1n <?0.0027?d1n+0.680 is used for the negative lens in the first lens unit. Herein, ?d1n represents an Abbe number, and ?gF1n represents a partial dispersion ratio.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein the zoom lens satisfies the following conditions: ndp3<1.5 and ?dp3>70.0, where ndp3 and ?dp3 are a refractive index and Abbe number, respectively, of material of the positive lens in the third lens unit.

Abstract: A zoom lens, comprising, in order from an object side to an image side: (a) a first lens unit of negative optical power; (b) a second lens unit of positive optical power; and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied during zooming, and wherein, during zooming from a wide-angle end to a telephoto end, the first lens unit moves so that its motion comprises (a) moving toward the image side and (b) moving thereafter toward the object side, and the third lens unit moves so that its motion comprises (a) moving toward the image side and (b) moving thereafter toward the object side.

Abstract: At least one exemplary embodiment is directed to a zoom lens system which includes a first lens unit having a positive optical power, a second lens unit having a negative optical power and positioned on the image side of the first lens unit, a third lens unit having a positive optical power and positioned on the image side of the second lens unit, a fourth lens unit having a positive optical power and positioned on the image side of the third lens unit, and an F-number determining member. The F-number determining member can be positioned between a vertex of an object-side lens surface of a lens that is nearest to an object side in the third lens unit and an intersecting point of the object-side lens surface and a peripheral portion of the lens in a direction of an optical axis.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein the zoom lens satisfies the following conditions: ndp3<1.5 and vdp3>70.0, where ndp3 and vdp3 are a refractive index and Abbe number, respectively, of material of the positive lens in the third lens unit.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

Abstract: A zoom lens system is disclosed, in which the decrease of the peripheral light quantity at the wide-angle end is improved. The zoom lens system comprises, in order from an object side to an image side, a first lens unit having a positive optical power, a second lens unit having a negative optical power, an aperture stop, a third lens unit having a positive optical power and a fourth lens unit having a positive optical power. The four lens units and the aperture stop are moved during zooming. When MS represents movement amount of the aperture stop during zooming from the wide-angle end to the telephoto end and M3 represents the maximum movement amount of the third lens unit in the optical axis direction during zooming from the wide-angle end to the telephoto end, ?1.8<MS/M3<?0.5 is satisfied.

Abstract: A zoom lens system including, in order from an object side to an image side, a first lens unit of positive optical power, and a second lens unit of negative optical power, followed by a lens component having a lens unit, wherein at least one of the first lens unit and the second lens unit moves during zooming. One of the lens units of the zoom lens system includes a layer made of a material that satisfies the following conditions: 11<?IT<27 0.2<?IT<0.4. Wherein ?IT is an Abbe number of the layer, and ?IT is a partial dispersion ratio for the g-spectral line and f-spectral line of the layer. The layer has an optical power of a sign opposite to that of the lens unit including the layer.

Abstract: A zoom lens which has a high variable magnification ratio and high optical performance and an optical apparatus having the zoom lens are provided. A zoom lens according to an embodiment of the present invention comprises, in order from an object side, a first, second, third, and a fourth lens unit respectively having positive, negative, positive and positive optical powers. For zooming from the wide angle end to the telephoto end, the first lens unit is moved to an object side, the second lens unit is moved to an image plane side, the third lens unit is moved to the object side, and the fourth lens unit is moved to the object side. The third lens unit is movable in a direction perpendicular to the optical axis to correct an image blur.

Abstract: A sensor includes a sensor main body, first and second electrodes, an electrode extraction hole, and an interconnection member. A cavity is formed in the sensor main body by joining the outer peripheral portions of the first and second substrates made of an insulating material. The first and second electrodes are formed on the inner surfaces of the first and second substrates which face each other through the cavity. The electrode extraction hole is formed through the first substrate in correspondence with the second electrode. The interconnection member guides the second electrode outside the first substrate through the cavity and the electrode extraction hole. The interconnection member is formed by thermal spraying of metal powder into the cavity from outside the sensor main body through the electrode extraction hole. An electrode extraction structure and electrode extraction method are also disclosed.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

Abstract: An inner portion of a filter cleaning portion 300 arranged at an inner portion of an interior unit is respectively arranged with cleaning units 300A, 300B constituted by arranging upper brushes 344a, 344b brought into contact with one face of an air filter and lower brushes 322a, 322b brought into contact with other face of the air filter 5 opposedly to each other at filter inlet/outlet 350a, 350b of the filter cleaning portion 300. Further, a longitudinal frame 54 and a transverse frame 55 of an air filter 5 having a filter sheet 51 in a shape of a meshed sheet for catching dust and a frame 52 for supporting the filter sheet 51 are formed on a rear face side (side of heat exchanger 3) of the filter sheet 51.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

Abstract: A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, the first lens unit consisting of, in order from the object side to the image side, a negative lens and a positive lens, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.