Wendelstein, Germany
Wendelstein, Germany

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Patent
Nidek Co. | Date: 2016-09-19

An ophthalmic laser treatment apparatus comprises: an observation optical system; first and second irradiation optical systems to irradiate first and second laser lights for treatment toward a patients eye; and first and second guide optical systems to irradiate first and second guide lights toward the eye. The second irradiation optical system displaces a condensing position of the second laser light to either one of a position far from of a reference plane on which the observation optical system is focused and a position short of the reference plane, so that a spot size of the second laser light on the reference plane is increased to a larger size than a spot size of the first laser light on the reference plane. The first and second guide optical systems respectively condense the first and second guide lights on the reference plane.


Patent
Nidek Co. | Date: 2016-09-29

An ophthalmic surgical apparatus supplies perfusion solution into a patients eye from a perfusion solution container stored with the perfusion solution. The ophthalmic surgical apparatus includes a perfusion passage, a non-positive displacement pump, a perfusion pressurizing motor, and a controller. The perfusion passage introduces the perfusion solution in the perfusion solution container to a surgical instrument which will be inserted in an eye. The non-positive displacement pump provided in the perfusion passage includes a blade-like rotor which is rotatable without shutting off the perfusion passage. The perfusion pressurizing motor applies pressure to the perfusion solution by rotating the rotor. The controller controls the drive to the perfusion pressurizing motor.


An intraocular lens injection system, a controller to control an intraocular lens injection device, a method for controlling an intraocular lens injection instrument, and a program therefor for preferably injecting an intraocular lens are provided. A push-out member including a drive part to push out a soft intraocular lens by the drive part, an observation member to obtain an observed image of the intraocular lens pushed out by the push-out member, and a determination member to determine a drive parameter of the drive part based on the observed image are provided. The intraocular lens includes an optical part and a support part to support the optical part in a patients eye, and the determination member determines the drive parameter according to at least a shape of the support part.


A terminal device to operate a plurality of ophthalmic apparatuses includes a communication unit to perform communication with the ophthalmic apparatuses, a selection receiving unit to receive a selection command to select at least one ophthalmic apparatus as an operation target to be operated from among the ophthalmic apparatuses, and a control unit to transmit a control signal to the operation target ophthalmic apparatus through the communication unit.


Patent
Nidek Co. | Date: 2016-09-02

An ophthalmic imaging device that captures an image of a test eye, the device includes: an OCT optical system configured to acquire an OCT signal by scanning a tissue of the test eye with measurement light, the ophthalmic imaging device configured to execute: receiving a designation of a wide area which is wider than a unit area which is an acquisition unit for acquiring motion contrast data indicating a motion of the tissue; acquiring a plurality of OCT signals for the same position at different timing in each of a plurality of unit areas, the plurality of unit areas being positioned in the designated wide area and being not completely overlapped with each other; and acquiring the motion contrast data of each of the plurality of unit areas by processing the plurality of OCT signals acquired for the same position.


Patent
Nidek Co. | Date: 2017-04-05

A fundus imaging device 100 includes a scanning optical system 1 that includes optical scanners 15 and 27 which change the travelling direction of light from light sources 11 and 21 so as to scan a fundus Er with the light; and an objective optical system 2 that is disposed between the optical scanners 15 and 27 and a subjects eye E, and guides light from the optical scanners 15 and 27 to the fundus Er. The fundus imaging device 100 forms an image of the fundus Er based on fundus reflected light. The objective optical system 2 includes a first mirror 50 that reflects light from the optical scanners 15 and 27, and thus forms a first pivot point r1 around which light turns in correspondence with the operation of the optical scanners 15 and 27, and a second mirror 60 that further reflects light reflected by the first mirror 50, and thus forms a second pivot point r2 around which light emitted to the subjects eye E turns. The swing angle of light incident to the first mirror 50 is smaller compared to the swing angle of light with respect to the second pivot point r2.


An ophthalmic apparatus (1) for examining an eye (E) of an examinee, comprises: optometry means (2) configured to examine the examinees eye; drive means (4) for relatively moving the optometry means three-dimensionally with respect to the examinees eye; first photographing means (3) configured to photograph a face of the examinee including at least one of right and left eyes of the examinee; and control means (70) configured to control the drive means. The control means is further configured to restrict a drive range of the drive means based on a two-dimensional position (P(x_(e), y_(e))) of the examinees eye on a first image (Pi) photographed by the first photographing means, the two-dimensional position being specified by image processing on the first image, and information on the first photographing means.


Patent
Nidek Co. | Date: 2017-03-08

Provided is a scanning laser ophthalmoscope (1) including: a light projecting optical system (10), including a light source (12), for projecting a line-shaped light flux to an examinees eye via an objective optical system (45); a light receiving optical system (20), including an optical detector (22), for receiving light from the examinees eye resulting from the line-shaped light flux via the objective optical system; an optical scanner (40) for scanning the examinees eye with the line-shaped light flux; and a focus adjustment unit including a drive mechanism (50) for moving the light source (12) and the optical detector (22) relative to the optical scanner (40) and the objective optical system (45).


Patent
Nidek Co. | Date: 2017-04-05

An ophthalmic surgical apparatus (1) supplies perfusion solution into a patients eye (E) from a perfusion solution container (17) stored with the perfusion solution. The ophthalmic surgical apparatus (1) includes a perfusion passage (5), a non-positive displacement pump (50), a perfusion pressurizing motor (51), and a controller (40). The perfusion passage (5) introduces the perfusion solution in the perfusion solution container (17) to a surgical instrument which will be inserted in an eye. The non-positive displacement pump (50) provided in the perfusion passage (5) includes a blade-like rotor which is rotatable without shutting off the perfusion passage (5). The perfusion pressurizing motor (51) applies pressure to the perfusion solution by rotating the rotor. The controller (40) controls the drive to the perfusion pressurizing motor (51).


The present invention relates to an optical equipment suitable for observation of at least a portion of an iridocorneal annular zone of an eye (100) comprising: an illumination assembly (201A, 201B), comprising at least one illumination electric device, for illuminating at least a portion of an iridocorneal annular zone of an eye (100), and having a plurality of illumination optical paths (251A, 251B) for one or more illumination light beams going to a corresponding plurality of sub - portions of said portion, an image capturing assembly (202A, 202B), comprising at least one image capturing electric device, for capturing images of at least a portion of an iridocorneal annular zone of an eye (100), and having a plurality of imaging optical paths (252A, 252B) for one or more imaging light beams coming from a corresponding plurality of sub-portions of said portion, and a front optical assembly (203) having a front surface (204) designed to be located close to the front surface of an eye (100), a rear surface (205) designed to be located far from the front surface of an eye (100), and comprising a central portion (206) located between the front surface (204) and the rear surface (205) and a lateral portion (207) located around the central portion (206); the front optical assembly (203) is stationary; all the imaging optical paths (252A, 252B) pass through the central portion (206) between the front surface (204) and the rear surface (205); the lateral portion (207) comprises a reflecting element (208) surrounding the central portion (206) and designed to provide a reflection along all the imaging optical paths (252A, 252B).

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