| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 600168000 | Magnifying | 8 |
| 20080249367 | ENDOSCOPE OBJECTIVE LENS AND ENDOSCOPE - An endoscope objective lens includes, in order from an object side, a negative first lens, a first cemented lens, an aperture diaphragm, a positive fourth lens and a second cemented lens. The negative first lens has a concave surface directed to an image side. The first cemented lens is formed by cementing a second lens and a third lens. One of the second and third lenses is positive and. The other is negative. The positive fourth lens includes a flat surface or a surface having a larger absolute value in radius of curvature, directed to the object side. The second cemented lens is formed by cementing a positive fifth lens and a negative sixth lens in order from the object side. The second cemented lens has a positive refractive power as a whole. The endoscope objective lens satisfies the following conditional expressions (1) and (2). | 10-09-2008 |
| 20080262315 | Inspection method with endoscope - An endoscopic inspection method includes staining step and super magnified observation step. In the staining step, a distal end surface of a distal end portion of an endoscope which includes a distal end opening of a channel and a first lens that forms a super high-power observation optical system is held in contact with the tissue surface of the observation subject region such that the staining fluid supplied via the channel penetrates to the gap between the distal end surface and the tissue surface to eliminate the mucus on the tissue surface. The tissue surface having the mucus eliminated is stained with the staining fluid. In the super magnified observation step, the first lens which forms the super high-power observation optical system provided at the distal end portion is brought into contact with the tissue surface that has been stained with the staining fluid such that the observation at the cellular level is performed. | 10-23-2008 |
| 20090076332 | ACTUATOR AND IMAGE PICKUP DEVICE - An actuator has a magnet moved together with a moving lens frame, an SMA wire capable of extending and contracting in a moving direction I of the moving lens frame with execution or non-execution of energization thereof, a fixing member made of a magnetic material attached to a distal end of the SMA wire, a pressing spring which urges the fixing member toward the magnet along the moving direction I, and a stopper member and a stopper portion which limits the movement of the magnet along the moving direction I at a first position or a second position. | 03-19-2009 |
| 20100063361 | ENDOSCOPIC IMAGE PICKUP UNIT - An endoscopic image pickup unit includes: a first fixed lens frame which holds a first objective lens group; a second fixed lens frame which, being fitted over the first fixed lens frame, holds a second objective lens group; a movable lens frame which, being installed in the second fixed lens frame so as to be able to move forward and backward along a photographic optical axis, holds a movable lens; and a deformation preventing member which, being interposed between a distal end body and the second fixed lens frame, prevents the second fixed lens frame from being deformed by fixing force of the fixing member when the endoscopic image pickup unit is fixed to the distal end body. | 03-11-2010 |
| 20100305405 | OBJECTIVE LENS FOR ENDOSCOPE AND ENDOSCOPE - In an objective lens for an endoscope, the full angle of view exceeds 120 degrees, and a most-object-side surface of the objective lens is spherical. Further, the following condition formulas (1) and (2) are satisfied: | 12-02-2010 |
| 20110237894 | ENDOSCOPE APPARATUS - To provide an endoscope apparatus in which the observation image can be varied continuously as the observation magnification is varied by a zoom magnification varying manipulation so that an observation image suitable for an endoscope diagnosis is obtained at each observation magnification, and to thereby prevent the operator from feeling uncomfortable and increase the accuracy of a diagnosis. An endoscope apparatus is equipped with illuminating unit having plural light sources which generate light beams having different spectra, for illuminating an observation subject; imaging unit for imaging the observation subject; observation magnification varying unit for varying observation magnification of the imaging of the imaging unit; and light quantity ratio varying unit for continuously varying an emission light quantity ratio between the plural light sources according to the observation magnification that is set by the observation magnification varying unit. | 09-29-2011 |
| 20130137930 | OBJECTIVE LENS FOR ENDOSCOPIC DEVICE, ACTUATOR FOR FOCUSING, AND ENDOSCOPIC SYSTEM - An objective lens for an endoscope, an actuator for focusing the objective lens, and an endoscope system including the objective lens are provided. The objective lens for an endoscope includes a plurality of lenses and a stop, and an optical element disposed adjacent to the stop, wherein a focal length may be varied by moving the optical element in a direction different from an optical axis. | 05-30-2013 |
| 20130184530 | ENDOSCOPE APPARATUS AND BRIGHTNESS CONTROL METHOD - An endoscope apparatus includes an objective optical system that is configured so that an observation magnification in at least a center part of an observation range is variable, a magnification control section that controls the observation magnification, and a brightness control section that performs a photometric process that attaches weight to a center part of an image that corresponds to the center part of the observation range when the observation magnification is a second magnification that is higher than a first magnification as compared with a case where the observation magnification is the first magnification, and adjusts the brightness of the image based on the result of the photometric process. | 07-18-2013 |
