Patent application number | Description | Published |
20090147380 | OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING THE SAME - An optical system in which a maximum value of a height from an optical axis of a paraxial marginal ray closer to an expanded side than a point of intersection between an optical axis and a paraxial chief ray, includes a lens unit Lr including at least one refractive optical element Gn of a negative refractive power. In the optical system, νd (Gn) as an Abbe number of a material of the refractive optical element Gn, θgF (Gn) as a partial dispersion ratio regarding g and F-lines, FGn as a focal lengths of the refractive optical element Gn, and Fr as focal lengths of the lens unit Lr are set appropriately. | 06-11-2009 |
20090207501 | ZOOM LENS AND IMAGING DEVICE HAVING THE SAME - A zoom lens including, in an order from an object side to an image side, a first lens group having a positive refracting power, a second lens group having a negative refracting power, a rear group including at least one lens group, the zooming operation being performed by changing a spacing of the lens groups, wherein the zoom lens has an aperture stop and, when the second lens group is taken as a first focus group and a sub-lens group constituting a portion of one lens group of the rear group is taken as a second focus group, the lens structure and the movement amount of the first and second focus groups are set appropriately. | 08-20-2009 |
20130342732 | IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS - The image processing method disclosed includes acquiring an input image produced by image capturing through an image capturing optical system, storing image restoration filters to be used for an image restoration process to a memory, acquiring information showing an image capturing state that is a state of the image capturing optical system for the image capturing, and determining whether or not to perform the image restoration process on the input image depending on the image capturing state. The method further includes acquiring the image restoration filter corresponding to the image capturing state from the memory only when a determination to perform the image restoration process is made, and performing the image restoration process on the input image by using the acquired image restoration filter. | 12-26-2013 |
20140022417 | OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS - The optical system capable of performing zooming includes a first lens unit and a second lens unit and satisfies conditions of |(ΔTMyu+ΔTMyl)/(ΔWMyu+ΔWMyl)|<0.67 and 0.75<|(ΔWMyu+ΔWMyl)|/2P<16.0. ΔWMyu represents a lateral aberration amount for a d-line of a 70 percent upper ray reaching an 80 percent image height at a wide-angle side middle focal length, ΔWMyl represents a lateral aberration amount for the d-line of a 70 percent lower ray reaching the 80 percent image height at the wide-angle side middle focal length, ΔTMyu represents a lateral aberration amount for the d-line of the 70 percent upper ray reaching the 80 percent image height at a telephoto side middle focal length, ΔTMyl represents a lateral aberration amount for the d-line of the 70 percent lower ray reaching the 80 percent image height at the telephoto side middle focal length, and P represents a pixel pitch of the image sensor. | 01-23-2014 |
20140176782 | Imaging Optical System and Image Pickup Apparatus Including the Same - An imaging optical system includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, an aperture stop, and a third lens unit having a positive refractive power. The second lens unit moves toward the image side during focusing from a far object to a near object. The third lens unit includes, in order from the object side to the image side, two lenses having concave surfaces that face each other with a largest air gap in the third lens unit provided therebetween, and a positive lens. A focal length of the entire imaging optical system and a focal length of the second lens unit are appropriately set. | 06-26-2014 |
20150097994 | IMAGE PROCESSING APPARATUS, IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - An image processing apparatus ( | 04-09-2015 |
20150205080 | OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS HAVING THE SAME - An optical system includes, a front lens unit having a positive refractive power, an aperture stop, and a rear lens unit having a positive refractive power, wherein the front lens unit includes an FB lens system, and an FA lens system, the FB and FA lens systems being configured to move appropriately, when shifting a focus from an object at a long distance to an object at a short distance. A focal length fFB of the FB lens system and a focal length f of the entire optical system are appropriately set. | 07-23-2015 |
20160065924 | IMAGE PICKUP APPARATUS, CAMERA SYSTEM, AND IMAGE PROCESSING APPARATUS - An image pickup apparatus includes a controller configured to adjust a position of an image pickup plane from a position of a focal plane by correcting amounts based on image pickup environmental information, an image pickup element configured to capture an image on an adjusted position of the image pickup plane, and an image processor configured to restore the captured image utilizing an image restoration filter corresponding to the position of the image pickup plane. | 03-03-2016 |