Patents Examined by Ronald M. Kachmarik
  • Patent number: 4968123
    Abstract: Helmut mounted display apparatus configured for simulator use includes a pair of visual image sources and a pair of optics arrangements, including relay optic and eyepiece portions thereof, that optically present the image source images into the wearer's forward visual field, a first eyepiece type optimized for daytime luminance conditions, a second type optimized for nighttime luminance conditions, a single eyepiece being releasably engageable to and rotatable about the corresponding relay optic portion, wheeby said eyepiece rotation allows a varying binocular field of view to be displayed to the wearer.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: November 6, 1990
    Assignee: United Technologies Corporation
    Inventors: Joseph T. Fournier, Jr., Stephen J. Smith, Harry R. McKinley
  • Patent number: 4964711
    Abstract: The present invention provides a viewing device, said device being positioned within the outer and inner surfaces of an entry door, to ascertain the identity of prospective entrants from within the confines of a dewlling. The device includes on the outer surface of the door a turret wherein at least four ports retain a like series of wide angles lenses. One of said ports and its lens is situated axially along a line from the eyepiece for straight ahead viewing, while the three ports and complimentary lenses are situated radially at right angles in relation to said axial port so as to give complete views of the area below and to the right and left of the doorway. A mirror, being positioned by a cam means, transmits the light and hence the image from each port to the user within the dwelling. By repositioning the mirror, the user may ascertain the presence and identity of visitors within a complete one hundred eighty degree field before the door.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: October 23, 1990
    Inventor: Donald E. Degnan
  • Patent number: 4962997
    Abstract: A structure is provided which receives light from a single source, separates the light into components, modulates the components with image information, and recombines the resultant image beams in order to form a multi-colored image. A small optical path length is provided for each of the separated beams, and small physical size is realized, without the use of crossed beamsplitters, with their attendant cost and performance limitations.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: October 16, 1990
    Assignee: Hewlett-Packard Company
    Inventor: Richard R. Baldwin
  • Patent number: 4961626
    Abstract: Helmet mounted display apparatus for use in aircraft and rotorcraft includes an first image source for generating images comprising pilotage symbol information, a second image source for sensing and generating images of the exterior scene, and relay optical components that optically superimpose the two images together and subsequently project the superimposed image into the observer's forward field of view.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: October 9, 1990
    Assignee: United Techologies Corporation
    Inventors: Joseph T. Fournier, Jr., Stephen J. Smith, Harry R. McKinley, William E. McLean
  • Patent number: 4961636
    Abstract: A description is given of a rotating turret device, which has a number of optical components, for example, lenses, condensors, filters and stops, which may be brought into operating position individually in each case. Apart from a motor drive device (1-4), an encoding device (12a-12c; 24a-24c) for the indexing or pre-selection of a specific optical component to be brought into operating position, and locating means (7, 7a; 8) for positioning the optical component in operating position, the rotating device has, in additiion, marking and control means (13; 13a), with the aid of which the speed of the turret can be controlled as a function of its particular relative position. In particular, it is possible with the device described to bring a high-speed motor-driven turret (5) into a set location, there taking place shortly before attainment of this operating position a controlled braking of the rotational speed of the turret (5).
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: October 9, 1990
    Assignee: Ernst Leitz Wetzlar GmbH
    Inventors: Norbert Gaul, Guenter Reinheimer, Peter Weimar
  • Patent number: 4960325
    Abstract: A light protection apparatus receives a beam of light having both a harmless light component and a harmful light component. The apparatus includes a housing having a forward end and a rear viewing end. A view aperture is located near the viewing end and receives the beam of light. An objective lens passes light onto a reflective device within the housing. The reflective device reflects the beam of light onto a partially reflective surface. The partially reflective surface includes an absorbing portion and a reflective pellicle surface. The reflective pellicle surface reflects the harmless light component to an eye piece lens. The harmful component, however, destroys the pellicle surface and the harmful light is transmitted to the absorbing portion and thus no reflection occurs. A cartridge carries the pellicle surface and is threadably removable with respect to the housing for replacement of the cartridge. In addition, a laser detector detects the presence of laser light and signals the user accordingly.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: October 2, 1990
    Inventor: Frank A. Witt, III
  • Patent number: 4958894
    Abstract: Beam sweeping apparatus for use in a scanning device. The apparatus comprises a mirror mounted on a pivot arm and arranged to be oscillated about an axis in an arc for sweeping a beam of light in a predetermined path. A pair of resilient are located adjacent the pivot arm to establish the limits of the excursion of the arm and mirror. A reversible electromagnetic motor is provided when energized for causing the pivot arm to move in alternate rotational directions until a portion of it engages a respective one of the bumpers, whereupon that bumper prevents further excursion of the arm in that direction and bounces the arm back in the opposite rotational direction. The energization of the electromagnetic motor is coordinated with the engagement of the bumpers by the pivot arm.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: September 25, 1990
    Assignee: Metrologic Instruments, Inc.
    Inventor: Carl H. Khowles
  • Patent number: 4958913
    Abstract: A magnifier lens assembly mounted within a lamp head including a barrel housing and a first, second and third lens, each of the lenses having a convex surface, an opposing substantially planar surface and a center axis of symmetry of the convex surface; the first, second and third lenses being mounted successively and coaxially within the barrel housing with the convex surface of the first lens facing the convex surface of the second lens, and the substantially planar surface of the second lens facing the convex surface of the third lens wherein the barrel housing includes means for securing the lenses in relatively fixed relation to each other and means for securing said magnifier lens assembly within said lamp head.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: September 25, 1990
    Assignee: Luxo Lamp Corporation
    Inventor: Irving Schaffer
  • Patent number: 4958920
    Abstract: Fast and versatile autofocusing for microscopes is achieved by the interaction of two known systems: a first, active autofocusing system (12) which projects at least one light dot on the object and develops a focusing signal dependent upon the character of a reflection of the dot; and a second, passive autofocusing system which creates a video signal representative of an image of the object and then uses the image contrast of that video signal as a focusing criterion. Provided for both systems is a joint control unit (45) to which the signals (g), (f) of both focusing systems are transmitted and which, successively, activates first the active and then the passive autofocusing system. The process can be used to focus on both covered and uncovered objects illuminated by transmitted as well as reflected light.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: September 25, 1990
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Reinhard Jorgens, Bernd Faltermeier
  • Patent number: 4958907
    Abstract: A holder for adjustably positioning a flatsheet magnifier proximate a visual display terminal comprises a mounting for retaining the magnifier and a support for extensibly positioning the mounting in a predetermined, spaced-apart relationship with the terminal. Disclosed are particular arrangements of mounts and supports including slidable members, telescopic legs and pivoting, scissor-action legs, all of which provide for the positioning of a magnifier proximate a display screen.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: September 25, 1990
    Inventor: Dale G. Davis
  • Patent number: 4957357
    Abstract: A reticle (10) permits the alignment of three orthogonal axes (X, Y and Z) that intersect at a common target point (30). Thin, straight filaments (12, 14 and 16) are supported on a frame (20). The filaments are each contained in a different orthogonal plane (S.sub.xy, S.sub.xz, and S.sub.yz) and each filament intersects two of the three orthogonal axes. The filaments, as viewed, along the frame axis (22), give the appearance of a triange (24) with a V (17) extending from each triangle vertex (25, 26, and 27). When axial alignment is achieved, the filament portions adjacent to a triangle vertex are seen (along the axis of interest) as a right-angle cross, whereas these filament portions are seen to intersect at an oblique angle when axial misalignment occurs. The reticle is open in the region near the target point leaving ample space for alignment aids such as a pentaprism 54 or a cube mirror 41.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: September 18, 1990
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Chris E. Barns, William D. Gunter
  • Patent number: 4957335
    Abstract: Microsphere-based retroreflective articles having exceptionally high retroreflective brightness, particularly at divergence angles of up to 0.5.degree. may be made by selection of microspheres having defined combinations of average diameter and average refractive index.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: September 18, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Clark G. Kuney, Jr.
  • Patent number: 4955690
    Abstract: A thin caliper retroreflective transfer comprising a monolayer of retroreflective elements in a support layer, the back stratum of which is a vulcanizable elastomer, and a premask releasably adhered to the front surface thereof to facilitate handling of the transfer and protect the retroreflective elements during handling and application to a substrate. Also a method for making such transfers.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: September 11, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Chester A. Bacon, Jr.
  • Patent number: 4953961
    Abstract: A light deflection apparatus includes a pair of mirrors in confronting relationship, one of which is fixed in position and contains a central window, in which to input a laser light beam or in which to mount a suitable light beam generating source, such a diode laser. The other mirror is movably mounted so as to permit varying the degree of tilt between the mirrors and azimuthal location of the bisecting plane of symmetry and the spacing. The apparatus is adapted to permit targeting of light beams to different objects rapidly for use in communications systems and military systems. The apparatus also is adapted to function as the light positioning element of an optical spatial modulator.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: September 4, 1990
    Assignee: TRW Inc.
    Inventor: Shivadev K. Ubhayakar
  • Patent number: 4953927
    Abstract: A system for imaging a line comprises a laser for emitting a modulated laser-light beam, an image-receiving surface, and a reflective element between the laser and the surface for deflecting the beam in an x-direction of the line to be imaged onto the surface. A lens assembly including a cylinder lens is provided between the laser and the element for focussing the beam on the element and a telescopic lens system is provided between the reflective element and the surface and including an upstream lens spaced by its focal length downstream from the reflective element and a downstream lens focussed downstream. Another simple cylinder lens is provided between the upstream and downstream lenses having a refractive power perpendicular to the x-direction. A projecting lens between the downstream lens and the image surface receives the beam from the downstream lens and focusses it on the surface. The middle lens has a refractive power perpendicular to the beam traversing it.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: September 4, 1990
    Assignee: Agfa-Gevaert AG
    Inventor: Hans J. Vedder
  • Patent number: 4953963
    Abstract: An aviator's night vision system (10) includes a small, compact, portable battery pack (68) separate from, and unattached to, a helmet (12), but comprising a container housing a battery (78) with a goggle assembly receptacle of the type that is mounted on the helmet. The goggle assembly receptacle of the portable battery pack housing includes engaging means (86 & 88), electrical contacts (90 & 92), and an orientation ridge (106) of the same type found on the helmet mounted receptacle (14). With this small portable battery pack, a goggle assembly can be removed from the helmet mounted goggle-assembly receptacle, snapped onto the portable battery pack receptacle, and thereafter used by hand for enhancing night vision.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: September 4, 1990
    Inventor: Alan K. Miller
  • Patent number: 4953949
    Abstract: For forming a composite picture, at least two transparent constituent pictures (12, 13) are arranged on behind the other with the transmittances of the individual picture elements (21-25) being selected in such a way that the average value of the products of the transmittances of those picture elements of the constituent pictures which are disposed behind each other in the viewing direction, taken over a plurality of adjacent picture elements, yields the transmitttance of the composite picture to be formed. The two constituent pictures may be entirely independent of each other and of the picture to be generated, whereby only the range of transmittance values is limited to a specific extent. If the two constituent pictures are arranged one behind the other with a specific spacing it is also possible to obtain steroscopic pictures. In this particular case the two constituent pictures may be formed by LCD displays, which rotate the plane of polarization of the transmitted light (18a, 18b, 18c).
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: September 4, 1990
    Assignee: U.S. Philips Corporation
    Inventor: William J. Dallas
  • Patent number: 4952024
    Abstract: A three dimensional sight and sound reproduction apparatus for individual use is disclosed. The apparatus includes a headset having a central rib connecting an eye covering portion, a pair of depending lens and a rear portion. The eye covering portion substantially blocks ambient light from being viewed by the wearer of the headset and includes a first and second liquid crystal display screen spaced apart sideways. The images on the screens can be focused by use of lenses. Depending ear limbs are also provided containing a first and the second earphone adjacent to the ears of the wearer and being adjustable to suit the location of the individual wearer's ears.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: August 28, 1990
    Inventor: Thomas S. Gale
  • Patent number: 4952042
    Abstract: A missile seeker head comprises a telescope mounted on a gimbal apparatus in a forward end of a projectile, pivotal in the gimbal sufficient to search a field of regard of up to 60.degree., and a camera mounted further back in the projectile, connected to the telescope by a coherent fiber optic bundle.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: August 28, 1990
    Assignee: The Boeing Company
    Inventor: George T. Pinson
  • Patent number: 4946266
    Abstract: An object holder for use on a microscope exhibits a frame having a shaped-on, deeper-lying contact surface, in which air suction openings are disposed for the fixing of the respective object. An adjustable abutment strip with a shaped-on bearing surface is provided, in order to retain plate-shaped objects, especially wafers or masks of the most widely varying shapes and sizes.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: August 7, 1990
    Assignee: Ernst Leitz Wetzlar GmbH
    Inventors: Winfried Kraft, Volker Wuerfel, Wolfram Stebel, Heinz Maerzhaeuser