Patent application number | Description | Published |
20130258492 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens consists of a negative first lens having a concave object-side surface, a positive second lens, a negative third lens, a positive fourth lens having a convex object-side surface, and a positive fifth lens, which are in this order from an object side. A stop is arranged between an image-side surface of the first lens and an object-side surface of the third lens. When the focal length of an entire system is f, and the focal length of the first lens is f1, and the focal length of the second lens is f2, the following formula is satisfied: | 10-03-2013 |
20130279026 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens includes negative first lens having a concave image-side surface, positive second lens having a convex object-side surface in a paraxial region, an aperture stop, and positive third lens having a convex image-side surface in the paraxial region, which are arranged in this order from an object side. The Abbe numbers of materials constituting the first lens and the third lens for d-line are greater than or equal to 40. The Abbe number of a material constituting the second lens for d-line is less than or equal to 40. When the focal length of an entire system is f, and the center thickness of the second lens is D | 10-24-2013 |
20140043699 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens consists of negative first lens, negative second lens of a biconcave shape, third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (11) is satisfied: | 02-13-2014 |
20140043700 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens includes a negative first lens, a negative second lens, a third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (4) is satisfied: | 02-13-2014 |
20140049842 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens consists of a negative first lens, a negative second lens, a third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (3) is satisfied: | 02-20-2014 |
20140055871 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens includes negative first lens, negative second lens, third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (6) is satisfied: | 02-27-2014 |
20140078604 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens consists of a negative first lens, a negative second lens, a third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (1) is satisfied: | 03-20-2014 |
20140204477 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. An object-side surface of the second lens is concave, and an object-side surface of the third lens is concave. A predetermined conditional formula about a combined focal length of the fourth lens and the fifth lens is satisfied. | 07-24-2014 |
20140204478 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. When a curvature radius of an object-side surface of the fourth lens is R8, and a curvature radius of an image-side surface of the fourth lens is R9, and an Abbe number of the material of the third lens for d-line is νd3, and an Abbe number of the material of the fifth lens for d-line is νd5, the following conditional formulas (1) and (6) are satisfied: | 07-24-2014 |
20140204479 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. An object-side surface of the second lens has a shape having negative refractive power at a center, and including a part having positive refractive power in an area between the center and an effective diameter edge, and having negative refractive power at the effective diameter edge (concave shape facing the object side), and the refractive power at the effective diameter edge being weaker than the refractive power at the center. Further, an object-side surface of the third lens is convex toward the object side. Further, a predetermined conditional formula about a combined focal length of the first lens, the second lens and the third lens is satisfied. | 07-24-2014 |