Patent application number | Description | Published |
20100123872 | OPHTHALMOLOGIC APPARATUS - An opthalmologic apparatus changes the wavelength of index light, which is projected on an eye to be examined, by selecting the light emission of a visible LED and an infrared LED, and changes the position of a split unit along an optical axis based on the selection. | 05-20-2010 |
20110032481 | FUNDUS CAMERA - When a bright spot image A received by an imaging unit is extracted, in step S | 02-10-2011 |
20120057128 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - When an observation state by an infrared LED | 03-08-2012 |
20120327366 | FUNDUS CAMERA - An ophthalmologic apparatus including an index projection unit to project an index on a cornea of a subject's eye, an imaging unit to form an image on an imaging plane via an objective lens and capture an image of the index projected on the cornea, and a control unit to control a distance between the subject's eye and the object lens so that a size of the captured index becomes a predetermined size. | 12-27-2012 |
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 |
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 |
20140132918 | OPHTHALMOLOGIC APPARATUS AND METHOD - An ophthalmologic apparatus obtains a suitable defocus state early in split AF even immediately after the apparatus shifts to an fundus observation state. At the time of focus state detection immediately after the shift to the fundus observation state, the apparatus tarns the fundus observing illumination light off if a focus determination unit determines that the defocus amount is equal to or more than a predetermined value, and turns the fundus observing illumination light on if the focus determination unit determines that an in-focus state immediately before photographing is obtained, thereby allowing the examiner to check a fundus state immediately before photographing. | 05-15-2014 |
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 |
20150084509 | HIGH-FREQUENCY POWER SUPPLY DEVICE AND REFLECTED WAVE POWER CONTROL METHOD - In an RF power supply for supplying RF power to a plasma load, reflected wave power control is performed in which the reflected wave power of an RF generator is detected and the RF generator is controlled. For a short-time variation in reflected wave power, control is performed based on a peak value variation in the detection value of reflected wave power. For a long-time variation in reflected wave power, control is performed based on a variation in a smoothed value obtained by smoothing detection values of reflected wave power. A reflected wave power control loop system includes a reflected wave power peak value dropping loop system and an arc blocking system that perform control based on a peak variation in reflected wave power and a reflected wave power amount dropping loop system that performs control based on a smoothed power amount of reflected wave power. | 03-26-2015 |