| Patent Number |
Title Of Patent |
Date Issued |
| D292526 |
Stand for mounting ophthalmologic instruments |
October 27, 1987 |
|
| 5165408 |
Gas jet shooting device for use with a non-contact tonometer |
November 24, 1992 |
| A gas jet shooting device for use with a non-contact tonometer, having a hollow head (19) with a nozzle (27) secured thereto, a cylinder (10) which communicates with the head, and a piston (11) reciprocatably mounted in the cylinder and defining a compression chamber (14) in the cylinder |
| 5092334 |
Noncontact type tonometer |
March 3, 1992 |
| A noncontact type tonometer projects a fluid toward an eye-to-be-tested and obtains a measured value of eye pressure from a relation between transfigurations of the eye due to the fluid projection and the pressure projecting of the fluid. A detecting circuit senses a pulse wave of the |
| 4984890 |
Method and an apparatus for aligning first and second objects with each other |
January 15, 1991 |
| A distance between a mask and a wafer is set such that exposure light beams emerged from the mask are converged by the projection lens to be focused on the wafer. Two light beams with same wavelength of the alignment light beam emerge from a first point (b) which is located far away from |
| 4941744 |
Integrated-photocircuit interferometer |
July 17, 1990 |
| An integrated-photocircuit interferometer (20) comprises a substrate (21) in which coherent light for measurement emitted from a light source (23) is directed through an exit waveguide (22) toward a corner cube prism (34) which can be movable with an object to be measured. The light refl |
| 4934812 |
Light detector |
June 19, 1990 |
| A light detector is disclosed which comprises a light-receiving section adapted to receive a measuring light beam at a front face thereof and to photoelectrically convert the light beam thus received and a display section adapted to display a measurement result on the basis of an output |
| 4932774 |
Illuminating system of ophthalmological instrument |
June 12, 1990 |
| An illuminating system of an ophthalmological instrument has a coaxial illuminating system for effecting a coaxial illumination by projecting an observation-use illuminating light toward an eye to be tested from a direction generally parallel with an optical axis of through an objective |
| 4916297 |
Code reader |
April 10, 1990 |
| A code reader comprising a scanner portion including an illuminating light source for illuminating a code in which all data are separated into at least two parts. A first partial code pattern and a second partial code pattern and a plurality of discriminating elements are arranged as suc |
| 4902133 |
Method and an apparatus for aligning first and second objects with each other |
February 20, 1990 |
| A distance between a mask and a wafer is set such that exposure light beams emerged from the mask are converged by the projection lens to be focused on the wafer. According to the present invention, two mask marks of diffraction gratings are formed on the mask and spaced at a predetermin |
| 4872460 |
Noncontact type tonometer |
October 10, 1989 |
| A noncontact type tonometer includes a fluid discharging device for discharging a fluid towards the cornea of an eye to be tested; an alignment detecting device for detecting an alignment between the axis of a fluid discharge of the fluid discharging device and the vertex of the corn |
| 4859051 |
Eye testing apparatus |
August 22, 1989 |
| An eye testing apparatus, in which a cornea reflecting image and a retina reflecting image formed by projecting each target mark image onto a cornea and a retina of an eye to be tested are projected to a slight receiving portion through a measuring optical system, and in which a corneal |
| 4858157 |
Apparatus and method for determining the coordinates of a three-dimensional object |
August 15, 1989 |
| A coordinates measuring apparatus comprising a detecting unit constituted by an optical system for obtaining an image of an object and a detecting system having a plurality of arrayed detecting elements disposed in such a manner that respective detecting signals are superposed at the pos |
| 4855875 |
Light source device for medical apparatus |
August 8, 1989 |
| A light source device for use in a medical apparatus has a turnable or linearly movable member or flange provided in a housing, and an actuator removably attached to the movable flange and carrying two light sources thereon. The actuator has two connector plugs provided thereon which are |
| 4854691 |
Laser beam scanning type eye fundus camera |
August 8, 1989 |
| A laser beam scanning type eye fundus camera has a laser beam generator for generating a laser beam; an illuminating system for illuminating the fundus of an eye to be tested by scanning the laser beam generated by the laser beam generator on the eye fundus; a first and a second light |
| 4852184 |
Method and system for spectacles frame image processing and recording |
July 25, 1989 |
| A spectacles frame image picked up by a TV camera is displayed on a TV monitor, and pattern data representing a frame and its image data are recorded in a spectacles frame data-base by setting an image region to be cut out using a cursor. At this time, a process for removing an enhan |
| 4848911 |
Method for aligning first and second objects, relative to each other, and apparatus for practici |
July 18, 1989 |
| According to this invention, a method and apparatus for aligning a mask and a wafer arranged to oppose each other, in a direction along their opposing surfaces, relative to each other, are arranged as follows. A first diffraction grating as a one-dimensional diffraction grating, bars of |
| 4848895 |
Automatic eye refractive power measuring apparatus |
July 18, 1989 |
| There is disclosed an automatic eye refractive power measuring apparatus for automatically measuring refractive power of an eye under test by means of objective measurement. It comprises a projection system for projecting a measuring target image to a retina of the eye under test by invi |
| 4838693 |
Method and apparatus for setting a gap between first and second objects to a predetermined dista |
June 13, 1989 |
| According to this invention, a method and apparatus for setting a gap to a predetermined distance between a mask and a wafer facing each other, are arranged as follows. First and second diffraction grating are formed on a mask and a wafer. The first diffraction grating is one-dimensional |
| 4838680 |
Optical system for retinal camera |
June 13, 1989 |
| An optical system for a retinal camera comprises objective lens adapted to be located toward a patient's eye. The retina of the patient's eye is illuminated and photographed through the objective lens, which has a first biconvex type lens means and a second biconvex type lens means with |
| 4834530 |
Shape measuring apparatus |
May 30, 1989 |
| A shape measuring apparatus is disclosed. It comprises a pattern portion having a pattern in which pattern elements are arranged in the pitch width direction according to a predetermined rule so that a plurality of N codes can be distinguished with respect to one another; a projecting po |
| 4834527 |
Working distance alignment optical system for ophthalmological instrument |
May 30, 1989 |
| A working distance alignment optical system for use in an ophthalmological instrument includes a target projecting optical system for projecting a target to a cornea of an eye to be tested, and a target image observing optical system for observing an image of the target in the cornea fro |
| 4828385 |
Autolensmeter |
May 9, 1989 |
| An autolensmeter for inspecting refracting power of optical systems is herein disclosed, which comprises a collimater lens for projecting light from a light source onto an optical system to be examined as a parallel luminous flux, a mask means having a mask pattern for selectively tr |
| 4821273 |
Wavelength/output power stabilizing apparatus of semiconductor laser |
April 11, 1989 |
| An apparatus for stabilizing the wavelength/output power of a semiconductor laser is disclosed. It includes an injection current supplying source for supplying an injection current to a single-mode semiconductor laser; an output power variation detecting portion for detecting the variati |
| 4820264 |
Infusion instrument |
April 11, 1989 |
| An infusion instrument comprises an infusion device for supplying intracular irrigating through an input end thereof, an infusion passage thereof and an insertion end thereof into an eyeball, an illumination unit including a light source for illuminating an inside portion of the eyeb |
| 4818068 |
Slit apparatus |
April 4, 1989 |
| A slit apparatus has a rotatable base plate and a rotatable cam driving plate which are rotated about the same axis of rotation, but independently. The base plate is provided with slit blades for forming a slit therebetween. The slit blades are rotated together with the base plate an |
| 4817620 |
Noncontact type tonometer |
April 4, 1989 |
| A non-contact type tonometer is disclosed. It includes a fluid discharging device for discharging a fluid from a nozzle towards an eye to be tested and transfiguring the eye, an eye pressure measuring device for measuring the eye pressure of the eye based on the pressure of the fluid, an |
| 4811062 |
Method for aligning first and second objects relative to each other and apparatus for practicing |
March 7, 1989 |
| In a method for aligning first and second objects relative to each other, according to this invention, the first and second objects are arranged opposite to each other, and are aligned in a direction perpendicular to their opposing direction. A grating pattern is formed, as an alignment |
| 4810085 |
Corneal configuration measuring apparatus |
March 7, 1989 |
| A corneal configuration measuring apparatus is disclosed. It comprises target projecting means for projecting target beams from a plurality of targets towards a cornea of an eye to be tested, light receiving means, measuring optical system for projecting the target beams reflected on the |
| 4810084 |
Retinal camera |
March 7, 1989 |
| A retinal camera of the present invention has an illumination optical system for projecting an illumination light to a retina of an eye to be tested and a photographing optical system for photographing a retinal image of the eye to be tested. The illumination optical system is provided |
| 4810083 |
Binocular indirect ophthalmoscope |
March 7, 1989 |
| The invention provides a binocular indirect ophthalmoscope in which light reflected from an eye under test is split and guided to left and right oculars (7, 8). Left and right mirrors (10, 11) for directing the split light to the left and right oculars being laterally movable about the |
| 4808002 |
Method and device for aligning first and second objects relative to each other |
February 28, 1989 |
| First and second objects are moved relative and parallel to each other, in order to be aligned. More specifically, a first mark formed on the first object has first and second light-passing sections. A second mark formed on the second object has first and second light-reflecting sections |
| 4804262 |
Automatic perimeter |
February 14, 1989 |
| An automatic perimeter comprising stimulus presentation unit for presenting stimuli to examine a patient's eyesight, an examination program memory for memorizing a plurality of examination programs which present stimuli under different presentation conditions, a selector for selecting a |
| 4803645 |
Method and apparatus for measuring coordinates |
February 7, 1989 |
| A coordinates measuring method in which the image information of the same point are derived as first, second and third information when viewed from at least three different directions, a first corresponding point is determined by deriving the correlation between the first and second |
| 4799489 |
Tonometer |
January 24, 1989 |
| A tonometer comprising an eye pressure measuring device including a fluid discharge device for discharging a fluid toward an eye to be tested, a pulse wave phase detecting device for detecting a phase cycle of pulse wave due to pulse fluctuation of the eye to be tested, a pulse wave phas |
| 4796989 |
Opthalmological measuring apparatus |
January 10, 1989 |
| An ophthalmological measuring apparatus is disclosed. It comprises a projecting systems for projecting a target image to the cornea and retina of an eye to be tested, respectively, a measuring optical system for being introduced a corneal reflecting beam of light and a retina reflecting |
| 4793700 |
Gaze-fixing device for surgical microscope |
December 27, 1988 |
| A gaze-fixing device for a surgical microscope which is capable of providing a marking without an error at the time of a radial keratotomy operation. The device comprises a gaze-fixing target which can be disposed on the observation optical axis of a microscope, and light quantity-re |
| 4787800 |
Transfer machine in a surface inspection apparatus |
November 29, 1988 |
| A surface inspection apparatus is equipped with a transfer machine which includes a first storage unit for storing a plurality of wafers therein, a first transfer portion for receiving the wafers from the first storage unit one by one and transferring them along a horizontal plane, a fir |
| 4781457 |
Laser surveying equipment |
November 1, 1988 |
| A laser surveying equipment includes a laser beam luminous section, a suspending reflection member suspended in such a manner as to reflect laser beam radiated from the laser beam luminous section upward and always to direct the optical axis of such reflected light in the perpendicular |
| 4773749 |
Ophthalmologic photographing apparatus |
September 27, 1988 |
| An ophthalmologic photographing apparatus is disclosed. It comprises an observation light source for illuminating an eye to be tested; an observation optical system for forming an observation image of the eye to be tested and a corresponding image optically conjugate to the former; a |
| 4770181 |
Gas stream blower for non-contact type tonometer |
September 13, 1988 |
| A gas stream blower for non-contact type tonometer comprises a cylinder, a piston arranged in the cylinder to divide the interior thereof into an air open chamber and a compression chamber, a nozzle communicated with the compression chamber such that air in compression chamber is compres |
| 4761070 |
Eye refractometer |
August 2, 1988 |
| An eye refractometer is disclosed. It comprises a projection optical system including a light source portion and an objective lens disposed opposite to an eye under test, and a ring-shaped diaphragm or perforated mirror for forming a ring-shaped image pattern of the pupil of the eye and |
| 4758089 |
Holographic interferometer |
July 19, 1988 |
| A holographic interferometer comprising a source of laser beams, a condenser lens for converging a laser beam supplied from said laser-beam source, a pinhole which allows the passage of said converged laser beam, a collimator lens having a focal point which lies on said pinhole, a beam |
| 4756613 |
Eye fundus camera having viewing targets |
July 12, 1988 |
| An eye fundus camera for taking photographs of a patient's eye fundus. The camera includes a pair of viewing targets located at the opposite sides of the optical axis. A switch is provided for alternately energizing the targets so that an appropriate one of the targets emits light beams |
| 4753498 |
Optical reader |
June 28, 1988 |
| The present invention relates to an optical reader for scanning a surface to be scanned by using information beam ray such as laser beam ray and optically reading a recorded information such as bar code recorded in the surface to be scanned. The optical reader is constituted such that op |
| 4744648 |
Eye refractive power measuring apparatus |
May 17, 1988 |
| An improved eye refractive power measuring apparatus is disclosed. The apparatus includes a measurement system for projecting a measurement target image to the retina of an eye to be tested and measuring the refractivity of the eye to be tested by detecting the focussing state of the |
| 4740071 |
Subjective ophthalmic instrument |
April 26, 1988 |
| A subjective ophthalmic instrument has optotypes which are observed by the patient through a correcting lens system of adjustable refractive power. The subjective ophthalmic instrument further has a optotype examination system which includes an imaging optical system for producing an ima |
| 4737029 |
Photometer |
April 12, 1988 |
| A photometer is providing including light detecting means for detecting incident light and generating electric signals in response thereto as a measure of the incident light thereon, and optical means for guiding light to the light detecting means from a standard light source in a calibr |
| 4730924 |
Lens meter and method of measurement of progressive multifocal lens using the same |
March 15, 1988 |
| Lens meter and method of measurement of progressive multifocal lens using the same which is able to set the amount of movement of the lens and to simply position a far- or near-distance refraction characteristics-measuring portion of a progressive multifocal lens. In accordance with |
| 4712895 |
Ocular position measuring apparatus |
December 15, 1987 |
| An ocular position measuring apparatus comprising a pair of fixation marks capable of emitting visible flickering beams for being watched by patient, a first pair of half mirrors positioned between the patient's eyes and the marks and an observing system for observing images of the patie |
| 4712894 |
Ophthalmoscopic instrument having working position detecting means |
December 15, 1987 |
| Ophthalmoscopic instrument having working position detector. An object lens has an optical axis and is adapted to be positioned to confront a patient's eye at a working distance. The patient's cornea has a center of curvature. An observing optical system focuses a light beam reflected fr |
