Abstract: A laser surgery apparatus is provided to minimize a burden on a patient and to obtain a good result of a surgical operation. The laser surgery apparatus for performing surgery on a patient's eye by irradiating a laser beam thereonto comprises an irradiation device provided with an irradiation optical system for irradiating the laser beam onto the patient's eye, a control device for controlling the irradiation device, and an informing device for informing the patient of at least either a first period of a laser irradiation period or a second period of the laser irradiation period or both.

Abstract: An ophthalmic apparatus for measuring a characteristic of an eye to be examined, the apparatus comprising a moving device for relatively moving a measurement unit with respect to the eye, wherein the measurement unit includes a measurement system for measuring the characteristic of the eye, a position detecting device for detecting a relative position of the measurement unit with respect to the eye at the time of measurement, a storing device for storing detected position data, and a processing device for performing a predetermined processing based on a plurality of position data stored in each measurement.

Abstract: An ophthalmic apparatus comprising an input unit with which data on eye refractive power distribution of an eye to be examined at far vision, which is an unaccommodated state of the eye, and data on eye refractive power distribution of the eye at near vision, which is an accommodated state of the eye are inputted, a display, and a calculation and control unit which obtains data on distribution of difference between both the inputted data on distribution, so as to display at least one of the following data on the display: the data on the eye refractive power distribution at far vision; the data on the eye refractive power distribution a t near vision; and the obtained data on the distribution of difference.

Abstract: An ophthalmic apparatus comprising a first input unit with which plural measurement data concerning an eye to be examined are inputted, a second input unit with which images of the eye including an anterior eye segment are inputted, each of the image is photographed at the time of measuring each of the inputted measurement data, and a calculation and control unit which detects and corrects two-dimensional displacement or deviation between each of the measurement data based on each of the inputted images of the eye.

Abstract: An ophthalmic apparatus comprising a detecting device for detecting information of an eye to be examined, a first memory which is capable of storing a plurality of calibration information which is used for calibrating a result detected by the detecting device, and a second memory for storing the eye information, with associating the calibration information at the time of detecting with the eye information which is detected by the detecting device.

Abstract: An ophthalmic measurement apparatus for observing or measuring an eye to be examined by positioning the apparatus so as to have a predetermined positional relationship with the eye, the ophthalmic measurement apparatus comprising an alignment target projecting device for projecting an alignment target onto a cornea of the eye, an alignment device provided with a photographing optical system for photographing an image of the projected alignment target by photoelectric imaging elements to perform an alignment based on condition of the alignment target image photographed by the photoelectric imaging elements, a measurement target projecting device for projecting a target for measurement onto the cornea of the eye, a measurement device for measuring a corneal shape of the eye based on an image of the projected target for measurement photographed by the photoelectric imaging elements, a focal depth varying device for making a focal depth of the image photographed by the photoelectric imaging elements variable and

Abstract: An ophthalmic apparatus for calculating ophthalmic information of an eye to be operated, then determining an amount of corneal ablation for use in surgery for correcting ametropia, based on the calculated ophthalmic information, the apparatus comprising a first input device for inputting data of a pre-operative corneal shape obtained by corneal shape measurement, a second input device for inputting data of a pre-operative refractive power obtained by objective refractive power measurement, a first calculating device for calculating data of equivalent emmetropia corneal surface refractive power which is equivalent to cause the eye to be emmetropia, based on the data of the corneal shape and the data of the refractive power, a second calculating device for calculating estimation data of a post-operative corneal shape, based on the data of the equivalent emmetropia corneal surface refractive power, a third calculating device for calculating data of the amount of corneal ablation, based on the data of the pre-ope

Abstract: An ophthalmic measurement apparatus for measuring a refractive power of an eye to be examined, the apparatus comprises slit projecting optical system for scanning a fundus of the eye by a slit light bundle, detecting optical system for detecting the slit light bundle reflected by the fundus of the eye which is scanned by the slit projecting optical system, the detecting optical system includes plural pairs of photo-receiving elements which are disposed along the meridian direction corresponding to the slit scanning direction of the slit light bundle, and respective pairs of photo-receiving elements are disposed so as to be symmetric with putting an optical axis therebetween at approximately conjugate position relative to a cornea of the eye, and refractive power calculating device for calculating the refractive power of the eye which is varied at the meridian direction, based on respective phase difference signals outputted by respective photo-receiving elements of the detecting optical system.

Abstract: An ophthalmic apparatus including a measuring device for measuring or examining an eye to be examined utilizing reflection of a luminous flux projected into the eye through a pupil, the ophthalmic apparatus comprising a moving device for moving the measuring device relative to the eye, a target projecting device for projecting an alignment target onto a cornea of the eye, a target detecting device for detecting an image of the alignment target, a photographing device for photographing an image of an anterior part of the eye, a pupil position detecting device for detecting a position of the pupil by signals transmitted from the photographing device, a judging device for determining a reference point for alignment based on information on the position of the pupil detected by the pupil position detecting device and the image of the alignment target detected by the target detecting device and an instructing device for giving instructions for making the moving device move based on the reference point determined by

Abstract: An apparatus for measuring an optical characteristic of an examined lens, comprising a first measuring optical system for projecting a first measuring light flux on an examined lens, which is enlarged so as to cover a relative large area of the lens, via both a first grating and a second grating which has a predetermined positional relationship with the first grating, thereby forming moire fringes thereon, then detecting the moire fringes by a two dimensional photo detector, a first calculating device for calculating each principle point refractive power at each point of the lens by processing results detected by the first measuring optical system, a second measuring optical system for projecting a second measuring light flux on a small area of the lens, then detecting a position of an image of the second measuring light flux by a positional photo-detector, a second calculating device for calculating a back vertex power at the small area by processing results detected by the second measuring optical system, a

Abstract: An ophthalmic apparatus having an examining unit which examines an eye to be examined, the apparatus comprising an alignment device for aligning the examining unit with each of a right eye and a left eye, including a target optical system which forms an alignment target on one eye, a corneal reflex forming device including an emitting optical system by which a corneal reflex is formed on the other eye, in which the emitting optical system emitting a luminous flux on relatively wide area where is defined based on dispersion of an interpupillary distance of an examinee, and an optical axis of the emitting optical system and an optical axis of the examining unit being spaced at a predetermined distance, a detecting optical system for detecting a corneal reflection being in a direction intersecting with the optical axis of the emitting optical system, including a limiting device which limits incidence of the corneal reflection and a positional detecting device which detects a position of the limited corneal refle

Abstract: A lens meter having a measuring optical system comprises a device for measuring an optical characteristics continuously, a device for introducing the lens to the desired positional relation for a measuring optical axis in the measuring optical system on the basis of the measured data, a device for generating the alignment ending signal when the alignment is achieved to the predetermined standard level, a device for judging whether the measured data is stable within a predetermined permissible range of the variation, and a device for storing the measured data of the lens based on the judgment result. This apparatus further comprises a device for designating which the left or right lens should be measured, a device for generating the signal for reading-and-storing the measured data, a device for storing the measurement result, a device for detecting whether the lens exists on the measuring optical axis, and a device for judging the changing-over of the left or right of the lens.

Abstract: An ophthalmic apparatus in which a measuring part for inspecting-or-measuring an eye to be examined is disposed so as to move relatively against a fixation stand, the ophthalmic apparatus comprises light source for use in detecting a relative movement, which is disposed in the one between the fixation stand side and the measuring part side, photo detecting elements for detecting a light bundle emitted from the light source for use in detecting a relative movement, which is disposed in the other between the fixation stand side and the measuring part side, target forming device for forming at least two target-images, that are transmitted from the light source for use in detecting a relative movement onto the photo detecting elements plane, upon before and after the movement according to the relative movement by the measuring device against the fixation stand, and calculating device for calculating a relative position of the measuring part against the fixation stand based on a detecting information of the target

Abstract: An ophthalmic apparatus for measuring the shape of the cornea of the eye, capable of measuring the pupil in a natural state of vision is provided. An illuminating light source illuminates a cornea shape measuring pattern with red or infrared light to project an image of the cornea shape measuring pattern on the cornea of the eye, and a CCD camera picks up the image of the cornea shape measuring pattern formed on the cornea. A computer analyzes the image of the cornea shape measuring pattern to obtain data of the shape of the cornea and processes the data to calculate the regional curvatures of regions of the cornea. An intraocular illuminating light source illuminates the interior of the eye with red or infrared light, and the CCD camera picks up an image of a pupillary region illuminated by the light emitted by the intraocular illuminating light source and reflected by the interior of the eye.

Abstract: A lens meter having a measuring optical system comprises a device for measuring an optical characteristics continuously, a device for introducing the lens to the desired positional relation for a measuring optical axis in the measuring optical system on the basis of the measured data, a device for generating the alignment ending signal when the alignment is achieved to the predetermined standard level, a device for judging whether the measured data is stable within a predetermined permissible range of the variation, and a device for storing the measured data of the lens based on the judgment result. This apparatus further comprises a device for designating which the left or right lens should be measured, a device for generating the signal for reading-and-storing the measured data, a device for storing the measurement result, a device for detecting whether the lens exists on the measuring optical axis, and a device for judging the changing-over of the left or right of the lens.

Abstract: An ophthalmic apparatus comprises a first ophthalmic device and a second ophthalmic device. The first ophthalmic device is provided with a first examining part for examining optical characteristics of examinee's eye, a first memory device for memorizing data detected by the first examining part, and device for transmitting by wireless the detected data of the first memory device to the second ophthalmic device. The second ophthalmic device is provided with a second examining part for examining optical characteristics of examinee's eye, device for receiving the detected data of the first ophthalmic device transmitted by the wireless transmitting device, a second memory device for memorizing data detected by the second examining part, and device for outputting the detected data of the first and the second examining parts respectively in a predetermined format.

Abstract: An ophthalmic apparatus for measuring an eye of an examinee, includes a device for detecting whether the eye is located within a predetermined area with respect to the apparatus, an interval time producing device for producing a prescribed interval time, a power supply device for supplying power intermittently to the detecting device in accordance with signals for the interval time producing device, and power supply signal generating device for generating a signal to supply a power required by the ophthalmic apparatus when the detecting device judges that the eye exists within the predetermined area.

Abstract: An ophthalmic apparatus for use by an examiner in examining an examinee's eye includes an optical system for examining the examinee's eye, an observing optical path for observing the examinee's eye directly in binocular vision, a beam splitter disposed in the observing optical path, and a mark forming device for forming an aiming mark at a position conjugate to a predetermined portion of the anterior part of the eye, the light of the aiming mark being reflected by the light splitting member into the eyes of the examiner, wherein the positional relationship along the observing optical path between the anterior part of the examinee's eye and the aiming mark is perceived through the examiner's eyes and the suitability of the working distance of the apparatus can be judged.

Abstract: An ophthalmic apparatus is provided with a measurement unit that includes a measurement device that projects measurement light onto an examinee's eye and detects the measurement light reflected by the examinee's eye, a grip that supports the measurement device, so that the examiner can hold the device in his hand, a wireless transmitting device that transmits data about the examinee's eye to a receiving device separate from the measurement unit, the data being obtained based on light detected by the measurement device, and a signal generating device that generates a start signal to make the transmitting device start to transmit; the receiving device receives the transmitted data about the examinee's eye and has a holding device that detachably holds the measurement unit for transmission of measurement data.

Abstract: The present invention provides a lens meter capable of accurately measuring the optical characteristics of a lens including additive diopter and of providing highly reliable data representing the optical characteristics of the lens. The lens meter projects measuring light through a target mark on a lens, focuses an image of the target mark in a target image on a photo-detecting device, and determines the optical characteristics of the lens on the basis of a locus of the target image detected by the photo-detecting device.