Abstract: The invention relates to a glass for at least one signalling lamp, in particular for a motor vehicle. The glass includes a plurality of non-catadioptric elements that have the appearance of catadioptric needles but without performing the same function. At least a portion of the non-catadioptric elements have conical ends on the inside face of the glass. This makes it much easier to make a mold for mass-producing such a glass.
Abstract: The invention comprises a camper shell corner reinforcement device for mounting the corner of a camper shell, trim, and base mounting of the camper shell together and for reinforcing their connection in the corner. The device has two brackets. One bracket has an elongated frame with a curved end and with an inclined wall extending about the curved end. The elongated frame portion is inserted in the end of the tubular portion of the base mounting for the shell which base mounting and its tubular portion extends along the bottom outer edge of the shell, along the opposing sides to the rear corners of the shell with the curved portion extending around the corner of the shell with the inclined curved wall providing a curved inside backing or reinforcing wall for the shell for the portions of the shell extending around the corner.
Abstract: An ion vapor deposition (IVD) apparatus includes an IVD chamber, a vacuum pump for creating a vacuum in the chamber, and a source of ionizing gas. One or more target materials are mounted in the chamber and a holder is provided for holding the object to be coated. An electrical power source electrically biases the target materials. A mask covers the target materials and is movable relative to the target materials for selectively exposing respective target materials.
Abstract: An adjustment device for adjusting a moving portion of a motor vehicle headlight relative to a fixed portion, in particular a reflector relative to an intermediate part of the headlight, the device being of the type comprising a screw that includes a ball member received in a seat connected to one of the portions and a thread engaging in tapping connected to the other portion, wherein the ball seat and the tapping are respectively provided on two elements each including assembly means enabling it to be assembled to corresponding assembly means provided on said respective portions merely by relative displacement.
Type:
Grant
Filed:
July 20, 1993
Date of Patent:
June 27, 1995
Assignee:
Valeo Vision
Inventors:
Jean Salmon, Jean-Pierre Loiselet, Vincent Demarcq
Abstract: An apparatus for protecting the eyes of a dental or medical practitioner from exposure to ultraviolet radiation during the illumination of a surgical site or other area of interest includes first and second carrier lenses positioned within a suitable frame. The first carrier lens comprises first and second regions wherein the first region is adapted to transmit substantially all visible light incident thereon and wherein the second region is adapted to absorb or reflect all ultraviolet light incident thereon and at least some light incident thereon having a wavelength above 400 nm. At least a portion of the second carrier lens is also adapted to absorb or reflect both ultraviolet light and at a portion of light incident thereon having a wavelength above 400 nm.
Abstract: A keratorefractive surgical blade has opposing sides and first and second edges which intersect each other to form a point. The first edge is shaped to form a sharp cutting edge extending from the point a predetermined distance shorter than the distance from the base of a surgical incision to Bowman's membrane, a portion of the first edge adjacent to the sharp cutting edge being dull relative to the cutting edge.
Abstract: A motor vehicle headlamp has a device for generating a headlamp beam, together with a cover glass. A series of projecting elements is provided in the vicinity of the cover glass for location of a beam adjusting apparatus. At least one of these projecting elements is constituted by a portion of a movable member which is displaceable between a first or retracted position and a second position, in which this portion of the movable member occupies a predetermined locating position with respect to the cover glass.
Abstract: A partially elastic protective sheath surrounding the insertion tube of an endoscope. The sheath is partially inflated while being installed on the endoscope and remains partially inflated during endoscopy. The sheath has an end cap with a gasket shaped to provide a seal around the insertion tube during installation and endoscopy. The sheath is provided with a window near its distal end positioned in front of the viewing window of the endoscope. The sheath may have one or more channels extending along its length to accommodate one or more biopsy or fluid tubes of the endoscope. The sheath may be used with either end-viewing endoscopes or side-viewing endoscopes.
Type:
Grant
Filed:
November 3, 1992
Date of Patent:
May 30, 1995
Assignee:
Vision Sciences, Inc.
Inventors:
James J. Frassica, Robert E. Ailinger, Mary L. DeBaryshe, Robert Herrington, James S. Surette, Alan I. West
Abstract: Described is an apparatus and method for removing a molded ophthalmic lens from between the mold portions in which it is produced. A source of intense electromagnetic radiation, preferably a carbon dioxide (CO.sub.2) laser of about 80 Watts at a wavelength of 10.6 .mu.m, is applied to at least one of the mold portions. The exposure of the mold portion to the laser is between one half and one second. Differential expansion of the heated mold polymer relative to the cooler polymer shifts one surface with respect to the other, and the shear force breaks the polymerized lens/polymer mold adhesion and assists in the separation of mold portions. The greater the temperature gradient between the surfaces of the mold portions, the greater the shearing force and the easier the mold portions separate. The heated back mold portion is promptly removed so that very little energy is transferred to the polymer lens, avoiding the possibility of thermal decomposition of the lens.
Type:
Grant
Filed:
March 7, 1994
Date of Patent:
May 23, 1995
Assignee:
Johnson & Johnson Vision Products, Inc.
Inventors:
Denwood F. Ross, Craig W. Walker, Olin W. Calvin, Thomas G. Davis
Abstract: A night vision visor system that is compact, light in weight, and ejection-safe, and which provides the user with an unobstructed peripheral field of view and other structural and operational advantages. The night vision visor system includes a visor adapted to be mounted to a helmet to be worn by a user and to be positioned substantially in front of the user's face, and a night vision imaging apparatus mounted to the visor for receiving incoming visible and/or infrared light from an object, for converting the incoming light to an intensified visible light, and for presenting the intensified visible light to an eye of the user. The night vision imaging apparatus includes first and second night vision imaging devices mounted in openings in the visor and movable with the visor between a down position in front of the user's face when is use and a raised position away from the user's face when not in use.
Abstract: The leads of a QFP are examined by an optical system. The optical system includes a sensor head having two lasers, the outputs of the lasers being fed to a beam splitter which provides outputs at right angles to each other, and a ring-light which is disposed under the beam splitter and in actual alignment with the beam splitter. The sensor head is carried by a carriage in a single plane along two transverse directions. The carriage moves the sensor heads so as to examine one lead at a time along the peripheral edges of the QFP.
Abstract: A mobile laser surgical center includes a truck body in which the surgical center is housed and a truck cab which transports the surgical center from one location to another. The surgical center includes a laser, a control for the laser and a patient seat. The truck body includes a floor, side walls, and a top. The laser is secured to the floor such that substantially no realignment of the laser is needed when the center is transported between locations. The truck body is also stabilized so that the truck body floor will be maintained in a level condition during a surgical procedure.
Abstract: A combination flying toy/beverage can insulator comprising an insulating cylinder and weighted nose ring for fixing the center of gravity of the device at a point about 12% to 18% of the full length of the device distal from the leading edge of the device.
Type:
Grant
Filed:
February 3, 1994
Date of Patent:
March 14, 1995
Assignee:
Aero Visions Group
Inventors:
Douglas J. Malewicki, Robert M. Kubinski
Abstract: An ophthalmic lens pallet having wells for receiving one or more lens containers at the receiving point achieves the requisite uniformity of motion in the direction of motion, and stability when transporting the lens in the orthogonal, non-translating directions by restraining the pallet between rails. A spring-loaded roller ball located on the side walls of the pallet body cooperate with guide rails on the conveyor to compress the spring-loaded roller ball when the pallet is between the guide rails. Blind holes on the pallet engage a drive which transports the pallet from the lens receiving point to an inspection station then to a lens disposition mechanism. The pallet wells comprise holes that pass through the pallet. These holes along with the rail and transport system make possible an arrangement of a lamp and camera for capturing an image of a lens.
Type:
Grant
Filed:
December 20, 1993
Date of Patent:
March 7, 1995
Assignee:
Johnson & Johnson Vision Products, Inc.
Inventors:
Russell J. Edwards, James A. Ebel, Borge P. Gundersen, Thomas C. Ravn
Abstract: A method for molding a soft ophthalmic lens mates a male and a female portion, one having around the periphery of the optical surface a knife edge and one containing a rim bushing peripherally exterior to the knife edge so that the knife edge deformably penetrates the other portion. Excess material is expelled from the mold cavity and separated from the lens by a region of prepolymer discontinuity defined by the rim bushing is produced by using a cylindrical insert and an annular sleeve machined to have the rim bushing on the surface of one end.
Abstract: An image acquisition system is arranged to optimize the information in an acquired image. Parameters associated with the system, such as any of the lens aperture, the lens focus and image intensity, are adjusted. Incoming image data is processed to determine the entropy of the image and with this information the aperture can be optimized. By determining the dynamic range of the scene the black and white levels thereof can be identified and the gain and offset applied to the image adjusted to minimize truncation distortion. Specular highlights can be detected by calculating the ratio of changes in maximum and minimum intensities between different but related images.