Patent application number | Description | Published |
20090021801 | LIGHT SCANNING APPARATUS AND SCANNING DISPLAY APPARATUS - A light scanning apparatus includes a scanner | 01-22-2009 |
20090040585 | OPTICAL SCANNING APPARATUS AND IMAGE DISPLAYING APPARATUS HAVING THE SAME - The object of the present invention is to provide an optical scanning apparatus which is not limited in the disposition of a scanning device, can reduce the adherence of dust to each member of the scanning device, and is enhanced in the reliability of the scanning device, and an image displaying apparatus having the same. The optical scanning apparatus includes a housing for containing and holding therein a scanning device provided with a movable mirror, an elastic supporting portion for supporting the movable mirror swingably about a swinging center, and a supporting base for supporting the elastic supporting portion, an optical member OE constituting a first optical system for directing a beam to the scanning device in the housing, and an optical member OX constituting a second optical system for emerging the beam passed through the scanning device. At least a part of the optical member OE and at least a part of the optical member OX constitute a part of the housing, and are provided so that a space in which the scanning device is contained in the housing configures a sealed space. | 02-12-2009 |
20090283238 | MANUFACTURING METHOD FOR OPTICAL ELEMENT - To obtain a positioning reference portion with good processing accuracy, which is formed of a newly-formed surface, a blank is press-molded by an upper mold, whereby a vertex portion abuts on an inner wall portion of a lower mold. In such a way, an oxide film that covers the vertex portion is broken by an internal pressure of the blank, and a raw material without oxide is moved by viscous flow from an inside thereof as illustrated by arrows. The raw material without oxide moved by viscous flow is thrust against the inner wall portion of the lower mold, whereby a newly-formed surface is formed, and this newly-formed surface serves as a positioning reference portion of an optical element. The newly-formed surface has surface roughness of the inner wall portion of the lower mold transferred thereto, and the positioning reference portion having good roughness is formed. | 11-19-2009 |
20110228369 | SCANNING IMAGE PROJECTION APPARATUS - The image projection apparatus includes a laser light source, and a scanning device scanning a light flux from the laser light source in horizontal and vertical directions at mutually different frequencies on a projection surface. A condition of | 09-22-2011 |
20120019937 | OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS USING THE SAME - An optical system includes a positive lens unit, wherein the positive lens unit includes an optical element containing a base material and minute particles that are mixed with the base material and have Abbe number that is lower than that of the base material, and the minute particles are higher in density at a peripheral portion of the optical element than on an optical axis of the optical element. | 01-26-2012 |
20130057962 | ZOOM LENS AND OPTICAL APPARATUS - A zoom lens includes an aperture diaphragm, and a plurality of lens units including a negative lens unit arranged on a light incident side of the aperture diaphragm, the zoom lens being configured to make variable a focal length by changing an interval in the plurality of lens units. The negative lens unit includes a negative lens having a radial type refractive index distribution and a concave surface on the light incident side. The negative lens has a wavelength dispersion distribution in which a differential value is negative on an optical axis of the zoom lens, and the differential value increases at a position that is more distant from the optical axis. | 03-07-2013 |
20130258490 | IMAGING APPARATUS - Provided is an imaging apparatus, including: an imaging optical system including a plurality of lenses; and an image plane which is disposed on an image side of the imaging optical system and is curved so that a concave surface thereof faces an object side of the imaging optical system. The imaging optical system includes an aperture stop. In the imaging optical system, a lens closer to the object side than the aperture stop and a lens closer to the image side than the aperture stop have different positive powers. A focal length of the imaging optical system is substantially equal to a distance from an exit pupil of the imaging optical system to the image plane. A radius of curvature of the image plane is substantially equal to the focal length of the imaging optical system. | 10-03-2013 |
20140055577 | DEPTH INFORMATION ACQUISITION APPARATUS, IMAGING APPARATUS, DEPTH INFORMATION ACQUISITION METHOD AND PROGRAM - A depth information acquisition apparatus acquiring depth information of a subject by using two real space images having different blur which are obtained by capturing a subject with different imaging parameters, comprises a conversion unit converting the two real space images to two frequency space images; a generation unit generating a frequency space phase image by dividing each frequency ingredient by the amplitude of each frequency ingredient of the frequency space images in two frequency space images; a calculation unit calculating frequency space correlation value information representing a correlation value for each frequency between the two frequency space phase images; a reverse conversion unit converting the frequency space correlation value information into real space correlation value information; and an acquisition unit acquiring the depth information, on the basis of characteristics of a peak of the real space correlation value information. | 02-27-2014 |
20150042839 | DISTANCE MEASURING APPARATUS, IMAGING APPARATUS, AND DISTANCE MEASURING METHOD - A distance measuring apparatus that calculates an subject distance from a plurality of images having different degrees of a blur, comprises an area setting unit configured to set ranging target areas in corresponding coordinate positions in the plurality of images, respectively; a feature value calculating unit configured to calculate, for each of the ranging target areas set in the plurality of images, a feature value of the ranging target area; and a distance calculating unit configured to calculate an subject distance in the ranging target area based on a plurality of feature values calculated for the ranging target areas. | 02-12-2015 |
20150043783 | DEPTH CALCULATION DEVICE, IMAGING APPARATUS, AND DEPTH CALCULATION METHOD - A depth calculation device for calculating depth information on an object from captured first image and second image with different blur, the depth calculation device comprising: an extraction unit configured to extract a first frequency component and a second frequency component from each of the first image and the second image, the first frequency component being a component of a first frequency band, the second frequency component being a component of a second frequency band, the second frequency band being lower than the first frequency band; and a depth calculation unit configured to calculate the depth information from the frequency components extracted by the extraction unit. | 02-12-2015 |
20150043808 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGING APPARATUS - An image processing apparatus comprising: an image acquisition unit configured to acquire an image; a depth map acquisition unit configured to acquire a depth map corresponding to the image; a refinement unit configured to detect a saliency region from the image and to refine the depth map on the basis of the saliency region, the saliency region being a region on which a person tends to focus; and an image processing unit configured to apply image processing to the image using the depth map refined by the refinement unit. | 02-12-2015 |
20150062399 | IMAGING APPARATUS AND METHOD FOR CONTROLLING IMAGING APPARATUS - An imaging apparatus, comprises an imaging optical system; a birefringent optical unit configured to separate a ray into an ordinary ray and an extraordinary ray; a light selection unit constituted by an ordinary ray selection element and an extraordinary ray selection element; an image sensor constituted by a first pixel group that receives an extraordinary ray, and a second pixel group that receives an ordinary ray; an image generation unit configured to generate an ordinary ray image based on signals acquired from pixels belonging to the first pixel group, and generate an extraordinary ray image based on signals acquired from pixels belonging to the second pixel group; and an image processing unit configured to calculate a subject distance, using the ordinary ray image and the extraordinary ray image. | 03-05-2015 |