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Class 351/218 - Hand held type


Subclass of Class 351 - Optics: eye examining, vision testing and correcting
Definition: Subject matter includes test instruments with rotatable
No. of patents: 58
Last issue date: 01/03/2012


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NumberTitleIssue Date
8087780High precision visual field tester with unprecedented detailed results
A visual field testing apparatus for scanning the visual field of a human eye in great detail, precision, and clarity so as to detect the smallest blind area whereby allowing users the ability of early detection of glaucoma and other eye diseases of visual loss. The...
01/03/2012
7963653Digital imaging ophthalmoscope
An ophthalmoscope. Implementations include a handle coupled to a head where the head includes a front section coupled with a diopter wheel and the front section includes a view window. A back section fixedly attached to the front section includes a diopter number vi...
06/21/2011
7954949Hand-held ocular fundus imaging apparatus
A lightweight and compact hand-held ocular fundus imaging apparatus is provided wherein alignment can be easily performed while ensuring a working length. An examiner takes hold of a grip by hand and secures a face pad against part of the face of a patient. The exam...
06/07/2011
7862173Digital imaging ophthalmoscope
An opthalmoscope. Implementations include a handle coupled to a head where the head includes a front section coupled with a diopter wheel and the front section includes a view window. A back section fixedly attached to the front section includes a diopter number vie...
01/04/2011
7794086Digital imaging ophthalmoscope
An opthalmoscope. Implementations include a handle coupled to a head where the head includes a front section coupled with a diopter wheel and the front section includes a view window. A back section fixedly attached to the front section includes a diopter number vie...
09/14/2010
7422328Sterile hand held slit lamp cover and method
A sterile barrier is provided for use with a slit lamp. The slit lamp has a proximal handle and a distal light slit transmitting window. The sterile barrier comprises a flexible tubular membrane having a first end, a second end, and an opening therebetween. The open...
09/09/2008
7364297Digital documenting ophthalmoscope
The invention is an eye viewing device having an eyepiece at an observer end thereof and an imaging element at an observation port thereof. Light that is reflected from an imaged eye of a patient is provided to either or both of the eyepiece and the imaging element....
04/29/2008
7338170Lens systems for vitreoretinal surgery
An ophthalmoscopy lens system includes a contact lens and an image forming lens. The contact lens and the image forming lens are in a spaced-apart arrangement such that an open air space exists between the contact lens and the image forming lens and the inner surfac...
03/04/2008
7338166Image-based system to observe and document eye responses having a reflective protractor for measurement of stimulus position
The image-based system is used to observe and document eye responses which can be used to implement the procedures defined in the Standardized Field Sobriety Test as well as the Drug Recognition Expert Program. These eye responses include pupil movement, as well as ...
03/04/2008
7338169Slit lamp for ophthalmic use
A slit lamp for illuminating an eye comprises several LEDs electrically coupled to an LED driver. A user input accepts input for a length, a width and an intensity of a shaped beam of light. An LED driver selectively drives a set of LEDs of an LED array to form a sh...
03/04/2008
7331672Sterile hand held refractive surgery slit lamp illumination system
A sterile hand held slit lamp for laser refractive surgery includes a charging base that charges a battery while a hand held slit lamp is positioned thereon. A sterile supple cover is positioned over a slit lamp handle while supported by the charging base. A sterile...
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
7325923Ophthalmic examination and treatment system
An ophthalmic examination and treatment system including ophthalmic medical instruments, wireless imaging devices mounted on the ophthalmic medical instruments, and one or more display devices for displaying images captured with the imaging devices. Each imaging dev...
02/05/2008
7290882Hand held device and methods for examining a patient's retina
A hand held device for examining a patient's retina. In one example, the device generates visible or non-visible illuminating beams having desired spectral content. The illuminating beams are then polarized to generate polarized light beam(s) that are directed towar...
11/06/2007
7284863Device and method for viewing ocular media
An ophthalmic device for the examination and detection of opacities in the ocular media comprising a cylindrical housing, a reflecting means located in the housing adapted to reflect light through an illuminating through-hole in the housing, and a viewing port in th...
10/23/2007
7255441Pupil measuring device
A pupil measuring device includes a portion that is positioned adjacent to a subject's eye and which includes a plurality of concentric circles on a lens as well as an opaque film that moves to cover the circles. Each circle is marked and the film is aligned with th...
08/14/2007
7252381Ophthamoscope
An ophthalmoscope has illuminating optics (10) for projecting a beam of light into an eye under examination and imaging optics (14) for creating an image of said eye for viewing by a user. The imaging optics comprises an objective lens system (16
08/07/2007
7253974Method for trimming a spectacle lens
The invention relates to a method for carrying out the precise trimming of a lens (1), whereby the lens is held between two clamping plates (2, 3) in a given position and the grinding of the periphery of the lens (1) is controlled along a trajec...
08/07/2007
7237896Ophthalmoscope with integral printer
An ophthalmoscope (800) includes a lens (802) and an eyepiece (801) by which an optometrist, ophthalmologist or general medical practitioner can examine the interior of a patient's eye. The ophthalmoscope includes a handle (803) within wh...
07/03/2007
7224822System for capturing an image of the retina for identification
A system for capturing an image of the retina includes an alignment system that aligns the eye along a predetermined axis of the system and at a predetermined distance from the system to illuminate a predetermined area of the retina and to capture an image thereof. ...
05/29/2007
7216984Optometric apparatus
An optometric apparatus for a subjective examination of a visual function of an eye of an examinee includes a pair of right and left lens chamber units, each including, a test window and a rotating disk on which a plurality of optical elements are mounted in a circu...
05/15/2007
7154111Cornea characteristics measuring device
An apparatus for measuring characteristics of a substance is provided. The apparatus includes a light source to generate light to form an image. A splitter transmits the light from the light source to a first lens, which collimates the light. A second lens receives ...
12/26/2006
7147327Pupilometer with pupil irregularity detection, pupil tracking, and pupil response detection capability, glaucoma screening capability, intracranial pressure detection capability, and ocular aberration measurement capability
A pupilometer having a pupil irregularity or non-uniformity detection capability. The pupilometer may comprise an imaging sensor for generating signals representative of a pupil of an eye, a data processor; and a program executable by the data processor for enabling...
12/12/2006
6942343Optical device for intraocular observation
The gonioscope of the invention comprises a hollow tapered body with mirror surfaces formed on the inner side of the gonioscope or on the inserts placed into the recesses on the inner surface of the gonioscope. Several reflecting surfaces arranged at the same or dif...
09/13/2005
6869182Frame and lens system
A method for mass manufacturing of eye glasses includes steps of measuring the interpupillary distance of each eye; measuring the refractive error of each eye with a hand-held auto refractor; selecting a lens blank for each eye from among a stock of lenses; cutting ...
03/22/2005
6850631Photographing device, iris input device and iris image input method
The object of the present invention is to provide a photographing device, iris image input device and iris image input method capable of rapidly and accurately acquiring an iris pattern code of a person to be identified regardless of the height of the person to be i...
02/01/2005
6666555Ophthalmic refractor having retrofittable readout illumination
A subjective ophthalmic refractor is improved for operator visibility in a darkened examination room by forming a cylinder axis scale of the refractor as a light-transmitting component having opaque scale gradations and installing a polar array of illumin...
12/23/2003
6289113Handheld iris imaging apparatus and method
A compact, handheld imaging apparatus which can be used to capture high-quality iris images for identification of a person. The handheld iris imager is non-invasive and non-contacting and comprises a camera, a cold mirror, a lens, and an illuminator. The ...
09/11/2001
5892568Portable hand-held pupillometer with dynamic electronic image centering aid and method for use thereof
Portable hand-held pupillometers for characterizing a subject's pupil which are operated by a user. The hand-held pupillometer comprise optical units for dynamically imaging the subject's pupil, and centering units interfaced and operated by the user for ...
04/06/1999
5861939Portable fundus viewing system for an undilated eye
The system of the present invention allows the fundus of an undilated eye to be viewed extremely easily and without the need for the viewer to align a hand held unit with a head mounted unit. The system for viewing the fundus of an undilated eye in accord...
01/19/1999
5861938Portable scanning laser ophthalmoscope
A portable scanning laser ophthalmoscope with a wide field of view permits a clinician to directly view the interior of the patient's eye without the use of an external monitor or display. The portable scanning laser ophthalmoscope includes a housing that...
01/19/1999
5859687Bar skiascope beam fixable in parallel
A bar skiascope that has lens slide for displacing a condenser lens along a direction of a light beam also includes a stop slide that can be displaced up to a predetermined maximum position in a displacement path of the lens slide, wherein the condenser l...
01/12/1999
5841510Rotatable diagnostic lens for evaluation of the irido-corneal angle, retina and other portions of the eye
A lens device for examining portions of the human eye comprising inner and outer members each having opposed end portions, the outer member having a viewing lens adjacent one end portion thereof, the inner member being rotatably mountable within the outer...
11/24/1998
5838421Binocular direct opthalmoscope
A portable, binocular direct ophthalmoscope. A frame carrying a binocular optical system is suspended for rotation about a pivot axis from one end of a support beam; an opposite end of the support beam is attached to a handle. A beam splitter block mounte...
11/17/1998
5793468Automated hand-held keratometer
An automated portable keratometer includes a hand held housing and is battery powered. A projection system projects collimated light sources at equal converging angles to an optical axis which extends outside the housing. A camera, including an imaging de...
08/11/1998
5767942Hand-held slit lamp apparatus and associated methods
A hand-held slit lamp instrument has a substantially elongated handle that houses one or more batteries and that connects to a line filament lamp. A front knob is threaded to the handle so that it is rotatable about the elongated axis of the handle. The f...
06/16/1998
5754274Field of vision collimator
A field of view collimator for self-monitoring peripheral vision loss. The field of view collimator includes a hand-held housing having a viewing aperture for placement adjacent to the subject's eye. A lens projects an image to the eye. The image, in the ...
05/19/1998
5673097Portable scanning laser ophthalmoscope
A portable scanning laser ophthalmoscope with a wide field of view permits a clinician to directly view the interior of the patient's eye without the use of an external monitor or display. The portable scanning laser ophthalmoscope includes a housing that...
09/30/1997
5650839Retinoscope assembly with scale
Techniques and retinoscopic apparatus for measuring or determining a patient's optical error are disclosed. The techniques include overrefraction and can be performed from a fixed position, avoiding the practitioner's need to move back and forth relative ...
07/22/1997
5646709Portable hand-held pupillometer with dynamic electronic image centering aid and method of use thereof
Portable hand-held pupillometers for characterizing a subject's pupil which are operated by a user. The hand-held pupillometer comprise optical units for dynamically imaging the subject's pupil, and centering units interfaced and operated by the user for ...
07/08/1997
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