Patent application number | Description | Published |
20130027666 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes an optical system configured to illuminate a subject's eye with light generated by a light source, a first reflection portion including a reflection surface for reflecting the light generated by the light source and a transmission portion, and a light amount detection unit configured to detect an amount of light generated by the light source via the transmission portion. The first reflection portion is disposed in a direction opposite to a direction of the light generated by the light source toward the subject's eye. | 01-31-2013 |
20130301005 | FUNDUS CAMERA AND CONTROL METHOD FOR THE FUNDUS CAMERA - An apparatus including an illumination unit for illuminating an eye to be inspected with light from an observation light source or light from a photographing light source; an photographing unit for guiding reflected light from the eye to an photographing element, to record an image thereof; a calculation unit for calculating an appropriate observation or photographing light intensity based on an illumination light intensity of the illumination unit and an image signal of the photographing element; an automatic light intensity adjustment unit for causing one of the observation and photographing light sources to emit light at the calculated light intensity; and a control unit for controlling the adjustment unit according to a selected one of a mode of acquiring the fundus image and a mode of acquiring the anterior ocular image. | 11-14-2013 |
20140118687 | OPHTHALMIC APPARATUS AND CONTROL METHOD THEREFOR - An ophthalmic apparatus includes an illumination optical system which projects an illumination light beam from an illumination light source onto the fundus of the eye to be examined and an imaging optical system which guides reflected light from the fundus to imaging part. The ophthalmic apparatus calculates the contrast value of the fundus image formed by the imaging part, and focuses the imaging optical system on the fundus by moving a focus lens in the optical-axis direction of the imaging optical system based on the contrast value obtained by the calculation. The apparatus adjusts the contrast value obtained by the above calculation based on the position of the focus lens in the optical-axis direction. | 05-01-2014 |
20140118689 | FUNDUS IMAGING APPARATUS AND CONTROL METHOD - A fundus imaging apparatus selects a focal position detection method in accordance with whether a diopter correction lens is inserted in an optical path of an imaging optical system that includes an imaging unit; and detects a focal position based on a signal from the imaging unit according to the selected focal position detection method. | 05-01-2014 |
20140160429 | OPHTHALMIC IMAGING APPARATUS, CONTROL METHOD OF OPHTHALMIC IMAGING APPARATUS AND STORAGE MEDIUM - An apparatus comprises: a projection unit arranged in an illumination optical system for projecting illumination light onto a fundus of an eye and to project a focus index onto the eye; a focus lens arranged in a light-receiving optical system for guiding reflected light from the fundus to an image sensor and to focus the image sensor on the fundus; a first unit to detect an approximate focus position using the focus index in a first mode; a second unit to detect a focus position in a second mode by evaluating a luminance-contrast of a fundus image formed on the image sensor based on the approximate focus position; and a control unit to control positions of the focus lens and the projection unit in association with each other in the first mode, and control them independently in the second mode. | 06-12-2014 |
Patent application number | Description | Published |
20130252154 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer that is provided on the conductive substrate, a charge generation layer that is provided on the undercoat layer, a charge transport layer that is provided on the charge generation layer, and a protective layer that is provided on the charge transport layer and has volume resistivity of 2×10 | 09-26-2013 |
20130288169 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; and a single-layer photosensitive layer that is provided on the conductive substrate and includes a binder resin, at least one kind of charge generation material selected from hydroxygallium phthalocyanine pigments and chlorogallium phthalocyanine pigments, a hole transport material represented by Formula (1), and an electron transport material represented by Formula (2): | 10-31-2013 |
20130288170 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; a single-layer photosensitive layer that is provided on the conductive substrate and includes a binder resin, a charge generation material, a hole transport material, and an electron transport material, wherein a half decay exposure during positive charging is less than or equal to 0.18 μJ/cm | 10-31-2013 |