Abstract: A single focus lens and a photographing apparatus including the single focus lens are provided. The photographing apparatus includes a single focus lens comprising: a first lens group having a positive refractive power, the first lens group including a first negative lens and a second negative lens arranged in succession at a most object side of the first lens group; a second lens group having a negative refractive power; and a third lens group having a positive refractive power and including a positive lens and a negative lens. The first to third lens groups are sequentially arranged in a direction from an object side to an image side.

Abstract: A rear conversion lens, which may include a plurality of lenses may be disposed at a side of master lenses facing an image side for varying a focal length, and may include: a first lens having a positive refractive power; a second lens having a biconcave shape; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. The first to fifth lenses may be sequentially arranged in a direction from an object side to the image side.

Abstract: A single focus lens and a photographing apparatus including the single focus lens are provided. The photographing apparatus includes a single focus lens comprising: a first lens group having a positive refractive power, the first lens group including a first negative lens and a second negative lens arranged in succession at a most object side of the first lens group; a second lens group having a negative refractive power; and a third lens group having a positive refractive power and including a positive lens and a negative lens. The first to third lens groups are sequentially arranged in a direction from an object side to an image side.

Abstract: A rear conversion lens, which may include a plurality of lenses may be disposed at a side of master lenses facing an image side for varying a focal length, and may include: a first lens having a positive refractive power; a second lens having a biconcave shape; a third lens having a positive refractive power; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power. The first to fifth lenses may be sequentially arranged in a direction from an object side to the image side.

Abstract: A wide angle lens system and an electronic apparatus including the same are provided. The wide angle lens system includes a first lens group having a negative refractive power, and a second lens group having a positive refractive power. The second lens group is spaced apart from the first lens group by a maximum air gap. The first lens group and the second lens group are sequentially arranged from an object side toward an image side. The second lens group includes a positive 2-1 lens group, a negative 2-2 lens group, and a positive 2-3 lens group, and focusing is performed by moving the 2-2 lens group along an optical axis.

Abstract: An inner focusing telephoto lens system and a photographing apparatus including the inner focusing telephoto lens system includes a relatively larger diameter lens and a lightweight focus lens group. The inner focusing telephoto lens system includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having the positive refractive power. The first lens group, second lens group and the third lens group are arranged sequentially from an object side to an image side. The inner focusing telephoto lens system performs focusing by moving the second lens group along an optical axis.

Abstract: The present invention provides a solid pharmaceutical composition containing compound (I) having an angiotensin II receptor antagonistic action and defined in the specification and a pH control agent, which composition is superior in the stability and dissolution property of compound (I).

Abstract: A telephoto lens system includes a first lens group having a positive refractive power, and comprising at least three positive lenses and one negative lens; a second lens group having a negative refractive power, and which moves along an optical axis to perform a focusing operation; a third lens group having a positive refractive power, and comprising a cemented lens in which a positive lens having a convex surface toward the object side and a positive lens having a convex surface toward the image side are bonded to each other, a bi-convex positive lens, and a negative lens having a concave surface toward the object side, and the first through third lens groups are disposed sequentially from the object side to the image side.

Abstract: A wide angle lens system and an electronic apparatus including the same are provided. The wide angle lens system includes a first lens group having a negative refractive power, and a second lens group having a positive refractive power. The second lens group is spaced apart from the first lens group by a maximum air gap. The first lens group and the second lens group are sequentially arranged from an object side toward an image side. The second lens group includes a positive 2-1 lens group, a negative 2-2 lens group, and a positive 2-3 lens group, and focusing is performed by moving the 2-2 lens group along an optical axis.

Abstract: A telephoto lens system including a first lens group having a positive refractive power and including at least three positive lenses and one negative lens; a second lens group having a negative refractive power and for performing focusing by moving along an optical axis; and a third lens group having a positive refractive power and including a 3a sub-lens group with positive refractive power and a 3b sub-lens group), wherein the 3a sub-lens group includes a negative lens and a positive lens sequentially arranged from an object side d, the 3b sub-lens group includes a positive lens and a negative lens sequentially arranged from the object side, and the telephoto lens system satisfies a condition, 0.17<fb/f<0.

Abstract: A telephoto lens system includes a first lens group having a positive refractive power, and comprising at least three positive lenses and one negative lens; a second lens group having a negative refractive power, and which moves along an optical axis to perform a focusing operation; a third lens group having a positive refractive power, and comprising a cemented lens in which a positive lens having a convex surface toward the object side and a positive lens having a convex surface toward the image side are bonded to each other, a bi-convex positive lens, and a negative lens having a concave surface toward the object side, and the first through third lens groups are disposed sequentially from the object side to the image side.

Abstract: Granule, fine particle or tablet of excellent leaching property, comprising a drug active ingredient in high content realized by forming a layer containing drug active ingredient on core particles through a combination of a method of dispersing and adhering an active ingredient while spraying or adding a binder with a method of spraying or adding a solution or suspension wherein an active ingredient and a binder are contained so as to effect adhesion. Further, there are provided a drug composition containing such a granule, fine particle or tablet and a process for producing the same.

Abstract: A zoom lens includes, sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group. During zooming from a wide angle position to a telephoto position, the interval between the first lens group and the second lens group increases, the interval between the second lens group and the third lens group decreases, and an interval between the third lens group and the fourth lens group varies. The fourth lens group includes, sequentially from the object side, a first sub-lens group having a positive refractive power, a second sub-lens group having a negative refractive power, and a third sub-lens group. The second sub-lens group of the fourth lens group is moved along an optical axis to perform focusing.

Abstract: An auto focus (AF) adjusting apparatus and a camera system of a lens replaceable camera are disclosed. AF is performed by correcting a location error of a focus lens due to a difference between a frequency band for performing AF detection and a frequency band for determining an improved location of an image surface of an imaging lens, and/or a target region for detecting a focal point.

Abstract: A telephoto lens system including a first lens group having a positive refractive power and including at least three positive lenses and one negative lens; a second lens group having a negative refractive power and for performing focusing by moving along an optical axis; and a third lens group having a positive refractive power and including a 3a sub-lens group with positive refractive power and a 3b sub-lens group), wherein the 3a sub-lens group includes a negative lens and a positive lens sequentially arranged from an object side d, the 3b sub-lens group includes a positive lens and a negative lens sequentially arranged from the object side, and the telephoto lens system satisfies a condition, 0.17<fb/f<0.

Abstract: An auto focus (AF) adjusting apparatus and a camera system of a lens replaceable camera are disclosed. AF is performed by correcting a location error of a focus lens due to a difference between a frequency band for performing AF detection and a frequency band for determining an improved location of an image surface of an imaging lens, and/or a target region for detecting a focal point.

Abstract: A zoom lens includes, sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group. During zooming from a wide angle position to a telephoto position, the interval between the first lens group and the second lens group increases, the interval between the second lens group and the third lens group decreases, and an interval between the third lens group and the fourth lens group varies. The fourth lens group includes, sequentially from the object side, a first sub-lens group having a positive refractive power, a second sub-lens group having a negative refractive power, and a third sub-lens group. The second sub-lens group of the fourth lens group is moved along an optical axis to perform focusing.

Abstract: Provided is a telephoto lens system. The telephoto lens system includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power, which are arranged sequentially from an object side to an image side. Focusing is performed by moving the second lens group along an optical axis. The first lens group comprises (from object to image side) a positive lens having an object side surface whose radius of curvature is greater than that of an image side surface, a positive meniscus lens having a convex surface at the object side, a negative meniscus lens having a convex surface at the object side, and a positive lens having an object side surface whose radius of curvature is greater than that of an image side surface.

Abstract: The present invention provides a solid pharmaceutical composition containing compound (I) having an angiotensin II receptor antagonistic action and defined in the specification and a pH control agent, which composition is superior in the stability and dissolution property of compound (I).

Abstract: Provided is a telephoto lens system. The telephoto lens system includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power, which are arranged sequentially from an object side to an image side. Focusing is performed by moving the second lens group along an optical axis. The first lens group comprises (from object to image side) a positive lens having an object side surface whose radius of curvature is greater than that of an image side surface, a positive meniscus lens having a convex surface at the object side, a negative meniscus lens having a convex surface at the object side, and a positive lens having an object side surface whose radius of curvature is greater than that of an image side surface.