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Class 351/208 - Having means to detect proper distance or alignment (i.e., eye to instrument)


Subclass of Class 351 - Optics: eye examining, vision testing and correcting
Definition: Subject matter including means for indicating when the photographing
No. of patents: 257
Last issue date: 02/23/2010


1              
NumberTitleIssue Date
7665846Determining optimal positioning of ophthalmic devices by use of image processing and autofocusing techniques
A system or method of positioning an ophthalmic device relative to an eye is provided. The method first obtains a series of images of an eye. In these series of images, the distance between the ophthalmic device and the eye is varied while the region of the eye imag...
02/23/2010
7654670Electric joystick mechanism for an ophthalmic apparatus
An electric joystick mechanism for an ophthalmic apparatus which is capable of improving manipulation performance of a joystick and is simple in structure comprises a base, a joystick having a shaft, a driving unit having a motor for moving an ophthalmic examination...
02/02/2010
7651223Fundus camera
A fundus camera capable of preferably photographing the periphery of a fundus irrespective of the state of an eye includes a photographing optical system having a photographing optical axis for photographing the fundus, a fundus observation optical system for pickin...
01/26/2010
7641340Fundus camera
A fundus camera of which the operability in alignment when photographing a fundus is enhanced includes a photographing optical system having a photographing optical axis which photographs the fundus, a fundus observation optical system picking up a fundus observatio...
01/05/2010
7588336Ophthalmic apparatus
An apparatus that includes an intraocular pressure measurement part having a blowing unit, an optical characteristics measurement part, a main body having the above measurement parts, a measurement part shifting unit bringing one of the measurement parts to a measur...
09/15/2009
7575322Auto-alignment and auto-focus system and method
A patient positioning system for use with a patient comprises an optical image sensor. The optical image sensor measures an optical image of a tissue structure of an eye of the patient. An image sensor support supports the image sensor. A patient support supports th...
08/18/2009
7572010Cornea imaging apparatus
A cornea imaging apparatus comprising: an illumination optical system having an illumination source; an imaging optical system having a photoelectric element for receiving a reflected light beam from a cornea of an eye under examination; actuating means for moving t...
08/11/2009
7549748Fixation light indicator for slit lamp
A slit lamp includes a rest for receiving a patient's face such as the patient's forehead. The slit lamp further includes an optical portion for observing the patient's eye. A fixation light is positioned near the optical portion to direct the patient's view toward ...
06/23/2009
7533989Sight-line detection method and device, and three-dimensional view-point measurement device
Method and device for detecting a line-of-sight of a subject and a three-dimensional view-point measurement device. The method uses a first camera, that measures the position of a pupil relative to a coordinate system, a second camera having a light source arranged ...
05/19/2009
7533990Ophthalmologic apparatus
An ophthalmologic apparatus is disclosed. In one aspect, the apparatus includes ocular fundus photographing systems for forming an ocular fundus image of the examined eye, based on a reflective beam from the ocular fundus of the examined eye, and a light receiving e...
05/19/2009
7524063Ophthalmic apparatus
An ophthalmic apparatus capable of performing smooth examination. The apparatus includes a chin rest on which a chin of an examinee is placed, a chin rest moving unit which puts the chin rest into up/down movement, an examination unit which has an examination optica...
04/28/2009
7478909Opthalmologic apparatus
In an ophthalmologic apparatus, the coordinates of three illuminated spots on a cornea-reflected image calculated from a front eye part image picked up by a two-dimension image pickup element and a pupil diameter are calculated, and the position of the centroid of t...
01/20/2009
7434933Device and method for determining geometric measurement values of an eye
A device for determining geometric measurement values of an eye, in particular a human eye, comprises a light projector for projecting a beam of rays through a section of the eye and image capturing means for capturing two images of a partial region of the section i...
10/14/2008
7431457Methods and systems for tracking a torsional orientation and position of an eye
Methods and systems for tracking a position and torsional orientation of a patient's eye. In one embodiment, the present invention provides methods and software for registering a first image of an eye with a second image of an eye. In another embodiment, the present...
10/07/2008
7413305Ophthalmologic apparatus and related positioning method
An arrangement and method for positioning an ophthalmologic device with respect to the patient's eye to be examined in x-, y- and/or z-coordinates. The device includes a controllable illumination unit, an observation system, an image recording unit, a central contro...
08/19/2008
7407288Eye-flow guiding level calculating system, eye-flow guiding level calculating program, and eye-flow guiding level calculating method
Exemplary embodiments of the invention provide an eye-flow guiding level calculating system which can plan miniaturization and low cost of a device and surely obtain a suitable eye flow. A layout device, first, detects each vertex of an image object as guiding refer...
08/05/2008
7402159System and method for positioning a patient for laser surgery
A system for positioning the eye of a patient, relative to a stationary surgical laser unit, includes a chair for moving the patient. An eye stabilizing element is held against the eye, with a tapered receptacle extending outwardly therefrom. Also, an alignment devi...
07/22/2008
7393102Eyesight improving device
This patent provides an eyesight improving device which improves ocular imaging adjustment functions and is easy to use. A user puts the eyes on eyepiece parts 10, and sees a figure displayed on a target 12 by both eyes or one eye by opening or closing...
07/01/2008
7390089Device and method for aligning an eye with a surgical laser
A device for establishing a desired alignment between a patient's eye and a laser system to facilitate an engagement therebetween includes a light source to illuminate the eye. A moveable platform is provided to move the patient relative to the laser system. To esta...
06/24/2008
7384144Apparatus and method for determining centering data for spectacles
An apparatus (3) for determining centering data for eyeglasses (2) comprises a fixation device (5) and a recording unit (4) that can be triggered by a computer, records electronic images, and is disposed behind a divider element (8...
06/10/2008
7377643Method and apparatus for eye imaging with position registration and constant pupil size
A method for capturing an image of an eye having an iris, including the steps of determining a plurality of measurement origins in the image; detecting an edge of the iris; determining a distance from each measurement origin to the edge of the iris; and, outputting ...
05/27/2008
7377644Fixation light indicator for slit lamp
A slit lamp includes a rest for receiving a patient's face such as the patient's forehead. The slit lamp further includes an optical portion for observing the patient's eye. A fixation light is positioned near the optical portion to direct the patient's view toward ...
05/27/2008
7370966Opthalmologic apparatus
The ophthalmologic apparatus 1 splits low coherence light LO into a signal light LS and a reference light LR, the interference light LC being generated by having the signal light LS overlap with the reference light LR, and detects this interference light LC. ...
05/13/2008
7367672Ophthalmic observation apparatus
An apparatus for observing an eye of an examinee by imaging the eye, includes an irradiation optical system; an imaging optical system; a monitor; and a display control part, wherein the imaging optical system includes a wavefront detector which receives the beam re...
05/06/2008
7366420Optical transmission device
An optical transmission device for providing stable communication with a partner device by reducing errors in optical axis misalignment. Such errors are caused by uneven distribution of the light intensity in a received light beam resulting from atmospheric microsco...
04/29/2008
7360895Simplified ocular fundus auto imager
An ocular fundus imager automatically aligns fundus illuminating rays to enter the pupil and to prevent corneal reflections from obscuring the fundus image produced. Focusing the produced fundus image is automatically performed using a pair of video sensors and is b...
04/22/2008
7347550Ophthalmologic image taking apparatus
Disclosed is an ophthalmologic image taking apparatus in which, when a processed medical image is read, an intended purpose of image taking can be intuitively and speedy understood, so that an image reading operation is accurately and efficiently conducted. The opht...
03/25/2008
7349583Global motion estimation image coding and processing
The invention provides methods for global motion estimation, determining a coarse estimation, and refining a coarse estimation. Embodiments of the invention provide a fast and robust global motion estimation algorithm based on two-stage coarse-to-fine refinement str...
03/25/2008
7347554Determining criteria for phakic intraocular lens implant procedures
One embodiment of the present invention is a method for determining whether to perform a phakic intraocular lens implant procedure, which method includes: (a) obtaining an image of an anterior segment of an eye; (b) determining a distance from a crystalline lens to ...
03/25/2008
7341346Ocular accommodative function examination apparatus
An ocular accommodative function examination apparatus for examining an accommodative function of an examinee's eye, comprises: a fixation target presenting optical system which presents a fixation target at a presenting position to the eye, the presenting position ...
03/11/2008
7338167Retinal imaging system
A retinal imaging system includes a light source and optics which receive light from the light source and which transmit the light to produce a beam that is substantially convergent. The beam penetrates a lens of an eye and diverges following penetration of the lens...
03/04/2008
7338172Ophthalmic apparatus
An ophthalmic apparatus comprises: a base; an examination part which includes an optical system for examining an eye of a patient and is placed to be movable horizontally on the base; and a fixing mechanism provided in the examination part and arranged to fix the ex...
03/04/2008
7334894Temporal vision modification
Various embodiments of methods and systems for improving and enhancing vision are disclosed. Adjustable lenses or optical systems may be used to provide adaptive vision modification. In some embodiments, vision modification may be responsive to the current state of ...
02/26/2008
7331670Fundus camera
A fundus camera that performs alignment easily and efficiently, and photographing a fundus favorably. A fundus camera has a photographing part in which a fundus photographing optical system is arranged, a fundus observation optical system having a first image-pickup...
02/19/2008
7331669Device for digital retinal imaging
A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. The scanning arrangement reduces the amount of target area illuminated at a time, thereby reducing the amount of unwanted light s...
02/19/2008
7331671Eye tracking method based on correlation and detected eye movement
An eye tracking method tracks a subject's eye template by correlation between successive video frames, and periodically updates the eye template based on detected characteristic eye or eyelid movement such as blinking, eyelash movement and iris movement. In the abse...
02/19/2008
7333636Funduscopic image processing unit and method
To determine the presence or absence of an aperture mask in a funduscopic image output by a fundus camera, and to combine the funduscopic image with an aperture mask image formed in an aperture mask-forming section so as to correspond to a determination result. When...
02/19/2008
7331929Method and apparatus for surgical operating room information display gaze detection and user prioritization for control
Certain embodiments of the present invention provide a method and system for using gaze detection to improve information display in a healthcare environment. Certain embodiments of a system include an eyewear headset for detecting a location of a user's gaze and a d...
02/19/2008
7329002Ophthalmic apparatus
An ophthalmic apparatus capable of providing a printout of measurement results on a plurality of different eye characteristics in a required format. An ophthalmic apparatus capable of measuring a plurality of different eye characteristics of an eye of an examinee si...
02/12/2008
7325924Ophthalmic photographic apparatus
An ophthalmic photographic apparatus comprises a photographic mask for defining a fundus photography range, a photographic stop for eliminating light reflected from an anterior portion of the eye, and a focusing lens for bringing the fundus into focus. The photograp...
02/05/2008
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