Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 5726734 | Hard/soft superposition progressive lens design A progressive ophthalmic lens is presented which is a linear composite of a hard lens design and a soft lens design resulting in a composite lens which combines features of the visual utility of a hard lens design with the visual comfort of a soft lens de... | 03/10/1998 |
| 5272332 | Laser discrimination device A laser discrimination filter based on temporal coherence is presented. This filter comprises a multilayer device with "thick" layers such that the optical thickness of each layer is greater than the coherence length of the ambient light, but still much s... | 12/21/1993 |
| 5235357 | Spectacle lenses having an inside-out conicoidal front surface and method for forming same Plus and minus power ophthalmic spectacle lenses for the correction of distance vision incorporating a convex aspherical front surface are provided. The front surface of the invention is described mathematically as an inside-out conicoid. the inside-out c... | 08/10/1993 |
| 5212585 | Laser protective device A laser sensor protector is provided comprising a nonlinear dynamic device which has a flat broad band reflectance covering the entire visible range in the on-state and allows for good optical quality and high transmittance (80-90) in the off-state. The d... | 05/18/1993 |
| 5198911 | Holographic optical notch reflectors A new method for making holographic notch filters in the near infrared spectral region is disclosed. This method utilizes lthe nonlinearity in the response function of holographic materials. When a holographic medium is exposed to two laser beams at diffe... | 03/30/1993 |
| 5137341 | Prescription lens carrier A protective optical device is disclosed. The device includes a transparent shield for protecting a portion of the wearers face and a device for mounting an ophthalmic lens in the transparent shield. The mounting device includes an aperture through the tr... | 08/11/1992 |
| 5123725 | Progressive addition spectacle lens Lenses are presented in occupational, dynamic activity and general purpose configurations, len lenses all being of compatible polar or bipolar progressive power design to form a series of progressive power lenses.... | 06/23/1992 |
| 5116113 | Laser eye protective devices Laser protection is provided by utilizing certain organic polymers with carboxylic or sulfonic acid groups which exchange their protons with cupric or ferrous metal ions to form cupric or ferrous ion-containing polymers. In addition, laser protection is a... | 05/26/1992 |
| 5100232 | Apparatus and method for detecting hidden marks on progressive aspheric ophthalmic lenses A device for detecting hidden marks on progressive aspheric ophthalmic lens is disclosed. The device includes a housing, a light source within the housing, a magnifying lens mounted above the housing and a target element mounted within the housing between... | 03/31/1992 |
| 5000878 | Photochromic articles with thermally stable photocolorability Spirooxazine compounds are incorporated into a plastic host comprised of copolymers of poly(vinyl alcohol) and poly(vinyl acetate). This combination results in a photochromic composite which exhibits significantly improved temperature stability relative t... | 03/19/1991 |
| 4977627 | Protective goggle A flexible mask goggle is presented comprising a flexible housing which receives an optically transparent lens. The housing includes a novel ventilation structure along the upper and lower surfaces thereof. On the upper surface, this ventilation structure... | 12/18/1990 |
| 4968129 | Eyeglass frame structures and method of assembling same Disclosed is an eyeglass frame and method of assembling such a frame which provides for quick and easy assembly. The eyeglass frame includes a lens supporting structure and at least one temple. For each temple the lens supporting structure includes a temp... | 11/06/1990 |
| 4942696 | Blocking shim and method for prescription-laboratory processing of aspheric progressive-addition lenses A thin sheet of flexible material shaped like an inverted "T", is applied to the aspheric distance portion of a progressive-addition ophthalmic lens, to provide stable three-point contact for blocking the lens prior to second-side surfacing in the prescri... | 07/24/1990 |
| 4921512 | Filter element A snap-on filter for chemical cartridges is presented which includes a filter element comprising a perforated fiberglass prefilter bonded to a felt filter. The filter element is contained within a filter housing which snaps onto the chemical cartridge of ... | 05/01/1990 |
| 4872749 | Lens for video terminal screen A method and lens are disclosed for improving the visual comfort and perceived vision of a person viewing an image transmitted from a video display terminal. The use of a lens tint complementary to the image color on the terminal screen is employed to imp... | 10/10/1989 |
| 4861153 | Progressive addition spectacle lens In the embodiments of the bipolar progressive power ophthalmic lens described in the specification, the constant power distance portion and reading portion regions of the progressive power surface are reduced to mathemtical points and the surface astigmat... | 08/29/1989 |
| 4856109 | Face protective device A transparent faceshield for protecting the face and eyes from impact and the like is detachably connected to an arcuate visor or crown using detents integrally molded to the crown and corresponding through-holes in the faceshield which receive and engage... | 08/15/1989 |
| 4848893 | Spectacle frame with lockable custom fitting nosepiece A spectacle assembly kit with a lockable custom fitting nosepiece is disclosed wherein a wearer is able to select an appropriately sized nosepiece, manually attach it to the spectacle frame without tools, check for correct fit, then lock the nosepiece in ... | 07/18/1989 |
| 4832478 | Spectacle hinge assembly Disclosed is a hinge assembly for an eyeglass frame which comprises a male hinge member to which a female hinge member is pivotally interconnected. The female hinge member includes a pair of parallel hinge leaves which are joined by a connecting wall in t... | 05/23/1989 |
| 4810080 | Protective eyewear with removable nosepiece and corrective spectacle A universal fit protective spectacle and assembly kit therefor are disclosed. The protective spectacle is especially adapted for use by eyeglass wearers since it includes an inner spectacle that holds corrective lenses removably mounted to an outer protec... | 03/07/1989 |
| 4720356 | Photochromic composition resistant to fatigue An organic photochromic composition comprising spiro [indoline-2,3'-[3H]-naphth [2,1-b] [1,4] oxazine] dye (spirooxazine dye) and unconventional ultraviolet stabilizers. The ultraviolet stabilizers improve the light fatigue resistance of the spirooxazine ... | 01/19/1988 |
| 4711539 | Support structure for protective mask optical insert An optical lens carrying support structure for use with a protective face mask, comprising a pair of lens frames, each frame comprising an eyewire and a hinge portion, the lens frames being connected by a hinged nosepiece. The support structure attaches t... | 12/08/1987 |
| 4704015 | Device for attaching a replaceable nosepiece to an eyeglass frame A system for attaching a replaceable, customizable nosepiece to an eyeglass frame is disclosed where the eyeglass and nosepiece fit together through a snappable attachment. The eyewires of the eyeglass frame are provided with a notch and adjacent projecti... | 11/03/1987 |
| 4699479 | Eyeglass frame structure and method of assembling same Disclosed is an eyeglass frame and method of assembling the same in which a temple includes a pair of parallel ears which extend from one end of the temple. Each ear includes a pin receiving hole, and on the facing surfaces of the ears, a ramped slot exte... | 10/13/1987 |
| 4699473 | Trifluoromethyl substituted spirooxazine photochromic dyes The organic photochromic composition of this invention comprises trifluoromethyl substituted spiro (indoline-2,3'-(3H) napth-(2,1-b)(1,4)oxazine) (SO) dyes. This new class of (SO) photochromic compounds has a more neutral color when subjected to ultraviol... | 10/13/1987 |
| 4632527 | Anti-static ophthalmic lenses Organic polymeric plastic substrates of optical elements are made anti-static and abrasion-resistant by: applying a conductive layer to at least one surface of the plastic substrate; and overcoating the conductive layer with an abrasion-resistant layer.... | 12/30/1986 |
| 4600002 | Disposable respirator A multiple ply, fold-flat, disposable respirator having, as one ply, a layer of a toxic gas or vapor absorbing material. Another ply is an aerosol filter. The respirator has an inturned vertical seam covered with a strip of foamed elastomer.... | 07/15/1986 |
| 4592350 | Respirator This invention relates to a dual reusable filter respirator system. The respirator can be worn in dust, mist and fume environments for very long periods of time, while providing increased visibility, safety and comfort for the respirator wearer. A signifi... | 06/03/1986 |
| 4540534 | Apparatus and method for injection molding lenses An apparatus and method for molding polycarbonate lenses is disclosed in which the lenses are formed in a single injection molding operation. Polycarbonate is injected into a cavity between two movable dies which are forced apart by the injected polycarbo... | 09/10/1985 |
| 4530706 | Respirator cartridge end-of-service life indicator Visual indication of respirator cartridge end-of-service life is accomplished with color indicator means particularly designed for long term shelf life and an adaptability to respond to both water soluble and water insoluble organic vapors.... | 07/23/1985 |
| 4514061 | Progressive power ophthalmic lenses An ophthalmic lens for the correction of presbyopia having a progressive power surface generated by the line of intersection of an ordered sequence of intersecting spheres and cylinder surfaces, the cylinder surfaces being so chosen as to produce a unifor... | 04/30/1985 |
| 4505487 | Dead stop for collet chucks A dead stop for workpiece positioning in collet chucking machinery. A fixed length stop is provided within a machine collet for establishing workpiece position independently of the collet clamping function and workpiece diameter.... | 03/19/1985 |
| 4478873 | Method imparting anti-static, anti-reflective properties to ophthalmic lenses Novel anti-static and/or anti-reflective optical elements are produced by coating at least one surface of an organic polymeric plastic substrate with a protective organo-silica coating composition and then subjecting the coated plastic substrate to a glow... | 10/23/1984 |
| 4449477 | Liquid dispenser Apparatus for dispensing a liquid utilizing surface tension of the liquid for control of amount dispensed.... | 05/22/1984 |
| 4440672 | Photochromic composition resistant to fatigue The organic photochromic composition of this invention comprises spiro [indoline-2,3'-[3H]-naphth [2,1-b] [1,4] oxazine] (SO) dye and an unconventional ultraviolet stabilizer. The ultraviolet stabilizer improves the light fatigue resistance of the SO dye ... | 04/03/1984 |
| 4435079 | Apparatus for testing lenses by determining best focus A test lens and a photo-detector array are fixed in position along an optical axis a fixed distance from each other. Light is reflected by the front and rear surfaces of the test lens through an objective lens and is detected by the photo-detector array. ... | 03/06/1984 |
| 4425669 | Safety goggle A safety goggle including a one-piece wrap-around front with hinged temples continuing rearwardly therefrom. The goggle features improved anti-fogging ventilation and universal nasal area face fitting.... | 01/17/1984 |
| 4422861 | Aerosol filter cartridge A circular array of accordian pleated filter material is core and edge sealed, placed in a supporting shell, peripherally sealed thereinplace and capped. Core sealing of the array of filter material is accomplished with a fill of hot melt adhesive and edg... | 12/27/1983 |
| 4417790 | Finished ophthalmic lens comprising an optical smooth coating over a rough-surfaced base A cut and/or ground ophthalmic lens surface is finished to optical smoothness and clarity by direct coating with a transparent liquid material which is curable into a clear, tough and tenacious laminate.... | 11/29/1983 |
| 4414872 | Lens tape cutter A lens surface is taped for protection during second side finishing and excess tape is trimmed from the lens with a heated cutting wire.... | 11/15/1983 |
