NIDEK Co.

Wendelstein, Germany

NIDEK Co.

Wendelstein, Germany
SEARCH FILTERS
Time filter
Source Type

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).


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).


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.


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).


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: 2017-06-14

A subjective optometry apparatus (1) includes: a subjective measurement means including a light projecting optical system (30), a corrective optical system (60) including a right-eye corrective optical system and a left-eye corrective optical system, and an optical member for guiding the target light flux corrected by the corrective optical system (60) to an examinees eye (E), the subjective measurement means subjectively measuring an optical characteristic of the examinees eye (E); and an objective measurement means including a measurement optical system (10) for emitting measurement light to a fundus of the examinees eye (E) and for receiving reflected light from the fundus, the objective measurement means objectively measuring the optical characteristic of the examinees eye (E) via the optical member disposed on an optical path of the measurement optical system (10).


Patent
Nidek Co. | Date: 2017-06-07

The present invention addresses the problem of providing an optometry apparatus and optometry program with which, when an open-field monocular examination is performed, a fogging state suitable to the examinee can be easily set. The optometry apparatus includes: a pair of right and left lens units disposed in an optical path of a target light flux projected onto an examinees eye, for changing an optical characteristic of the target light flux; a drive means for driving the lens units; a control means for controlling driving of the drive means; and an acquisition means for acquiring a targeted visual acuity value at the time of fogging. The control means determines an amount of fog for fogging the examinees eye on the basis of the targeted visual acuity value acquired by the acquisition means.


A shaft alignment apparatus sets a shaft alignment position (45), which is a mounting position with respect to an eyeglass lens (LE), of a lens holding shaft that holds the eyeglass lens (LE) interposed therein during the processing of the eyeglass lens (LE). A controller of the shaft alignment apparatus sets a shaft alignment position (45), other than at a geometric center (GC)of a target lens shape (60) to be processed, at which a processing inappropriate region (50) in the vicinity of the shaft alignment position (45) and the position of a hole (43) to be formed do not overlap each other, in at least a portion of cases where the shaft alignment position (45) is set with respect to the eyeglass lens (LE) having a hole formed through a lens surface thereof.


Patent
Nidek Co. | Date: 2017-04-26

A terminal device for assisting operation of a plurality of eyeglass manufacturing apparatuses which are used for performing different processes in manufacturing eyeglasses, includes: a communicating device configured to communicate with the plurality of eyeglass manufacturing apparatuses; a processor; and memory storing computer readable instructions, when executed by the processor, causing the terminal device to execute: a setting instruction for setting, according to a process, a specific eyeglass manufacturing apparatus from the plurality of eyeglass manufacturing apparatuses as an eyeglass manufacturing apparatus of which the operation is assisted; and a controlling instruction for controlling the communicating device to send an operating signal input in the terminal device to the specific eyeglass manufacturing apparatus set by the setting instruction or controlling the communicating device to receive an input signal input in the specific eyeglass manufacturing apparatus set by the setting instruction.


An ophthalmic analysis device for analyzing OCT motion contrast data including blood vessel information of a subject eye acquired by an ophthalmic OCT, includes: an analysis processing means configured to analyze the OCT motion contrast data to acquire a measurement result related to a capillary area of the subject eye, wherein the analysis processing means executes an alleviating process for alleviating the influence of great blood vessels having blood vessel diameters larger than those of capillaries on the measurement result to acquire the measurement result related to the capillary area.

Loading NIDEK Co. collaborators
Loading NIDEK Co. collaborators