Johnson and Johnson Vision Care, Inc.

Johnson & Johnson Vision Products Inc.

Other

James A Ebel

Michael Francis Widman

Russell J Edwards

Peyman Dehkordi

John B Enns

Denwood F Ross, Iii

Allan W Kimble

Peter W Sites

Gregory A Hill

Timothy P Newton

Susan K Brown-Skrobot

Chandra Tan

Robert Lee Simmons

Jeffrey H Roffman

Richard W Abrams

Darren S Keene

Borge Peter Gundersen

Thomas Christian Ravn

Timothy R Poling

Timothy A Clutterbuck

John E Studer

Mary L Dolan

Kevin H Giles

Anthony J Dispenza

Douglas Ingram

A processes of sterilizing a contact lens, that is immersed in an aqueous liquid and hermetically in a container, using at least 284 mJ/cmof UV radiation in the range of 240-280 nm is disclosed herein.

Method and apparatus of sterilization using monochromic UV radiation source

This invention provides a process of sterilizing a medical device, and preferably the contents of a sealed container which comprises said medical device, comprising the step of exposing said medical device to monochromatic ultraviolet radiation whereby the Dof(ATCC 7953) is at least 23.7 mJ/cmmonochromatic ultraviolet radiation at 257 nm to the spore. Further, this invention provides a process of sterilizing a medical device comprising the step of subjecting said medical device to monochromatic ultraviolet radiation wherein the minimum total energy density of said monochromatic ultraviolet radiation at 257 nm which reaches the microorganisms present on said medical device is at least 284 mJ/cm. This invention further provides an apparatus for delivering UV radiation to a medical device for sterilization comprising a laser and a scanner for the laser such that at least 284 mJ/cmat 257 nm is applied to a treatment area for said medical device. This invention provides a process and apparatus in which sterilization can be achieved in less than 20 seconds, preferably less than 15 seconds, more preferably in less than 5 seconds. The process and apparatus are efficient and continuous.

Method and apparatus of sterilization using monochromatic UV radiation source

A system for determining the presence and optionally the position of an ophthalmic product such as a contact lens in a container is provided.

Missing lens detection system and method

The invention includes methods and apparatuses for inspecting optical devices, particularly contact lenses.

Method and system for inspecting optical devices

Contact lens package

A sterilization system comprising: radiation source; optical and/or electrical sensors; and timing means; wherein the measurement of radiation by the optical sensor is substantially synchronized based on the timing means to the start and end of each pulse of radiation from the radiation source or to the start and end of the exposure of a product to the radiation source.

Sterilization system

This invention provides a high energy radiation system which produces UV radiation comprising a selectively attenuating material which increases the ratio of desired to undesired radiation to reduce the radiation damage to a target by selectively attenuating at least 30 percent of the radiation from greater than 200 up to 240 nm which impinges upon said attenuating material, and directs greater than 50 percent of the radiation from 240 nm to 280 nm which impinges upon said attenuating material.

UV radiation system having materials for selectively attenuating radiation

A method for fitting and designing an ophthalmic lens for a presbyope that yields improved visual acuity in general, and takes into account individual fitting characteristics. More specifically, a method for fitting and designing a contact or intraocular lens which takes into account material properties of the lens by observing the &ldquo;print through&rdquo; associated with the lens as an indicator of the topography of the lens. The term &ldquo;print through&rdquo; is used to refer to any change in lens topography on the front surface of the lens as a result of changes in topography on the back surface of the lens. If a significant amount of &ldquo;print through&rdquo; is observed, this generally indicates that the multifocal function of the lens is properly being performed. In such a situation, the clinician can then adjust the add power to the desired level. If there is not a significant amount of &ldquo;print through&rdquo;, this generally indicates that the multifocal function of the lens is not properly being performed. In this latter situation, by observing the reduced &ldquo;print through&rdquo; associated with such a lens, the clinician can instead bias one lens of a lens pair for distance power and the other lens of a lens pair for near power. Alternatively, each lens of the lens pair can be biased for some combination of distance power and near power.

Method of designing and fitting multifocal lenses taking into account material properties of the lenses

A method for fitting and designing ophthalmic lenses that yields improved visual acuity and takes into account individual lens fitting characteristics is provided. More specifically, the method of the invention takes into account the materials properties of the lens by observing the print-through associated with the lens.

Method of designing and fitting contact lenses taking into account material properties of the lenses

A method and system for verifying the presence of a lens in a transparent package. The method comprises the steps of moving the package into an inspection position, and conducting a light beam through the package and onto an image plane to form an image of the package on the image plane. The method further comprises the steps of generating a set of signals representing the image on the image plane, and analyzing those signals to determine whether a lens is present in the package. This analyzing step, in turn, includes the steps of searching the package image for images of discrete objects; and for each object image found in the package image, identifying values for a plurality of parameters, and analyzing those identified values according to a predetermined procedure to identify the object as a lens or as not a lens. A lens present signal is generated if one object image found in the package image is identified as a lens; and a lens missing signal is generated if no object images are found in the package image, or if all object images found in the package image are identified as not lenses.

Method and system for inspecting packages

A system for providing diffuse illumination in the inspection of ophthalmic lenses for use in conjunction with a computer-based lens inspection apparatus. Below a package containing an ophthalmic lens in deionized water is an optical diffuser made of flashed opal and below that a light source such as a strobe light. The strobe lamp firing is initiated by the image processing system which is in turn triggered by a signal generated by the arrival of a package containing a lens to be inspected. In the preferrerd embodiment, an arc tube is employed wherein light output diminishes by darkening only in one end of the tube, that end placed outside the reflector.

Illumination system for ophthalmic lens inspection

A lens inspection method and apparatus comprising a pallet having wells for receiving one or more lens containers at the receiving point. A conveyor achieves uniformity of pallet motion when transporting the lens. The pallet wells includes holes that pass through the pallet. These holes, along with a side driven transport system, make possible an arrangement of a lamp and camera on opposite sides of the lens for capturing an image of a lens. A computer implemented algorithm processes the digitized image to determine the acceptability of the lenses. A lens disposition mechanism uses a signal generated by the computer and indicates lens acceptability to disposition the lens by physically separating a container with an acceptable lens from an unacceptable lens. After disposition of containers, the pallet is returned by conveyor to the lens receiving point.

Growing community of inventors

Jacksonville, FL, United States of America

James A Ebel