Matches 251 - 300 out of 389 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
4355867 Spherical segment insertion apparatus  
An apparatus is provided for enabling selected structure to be joined to a pherical segment, such as a segment employed as a lens, viewing port or radiation transmissive housing. The apparatus...
4343534 Simulated camera viewer for video productions  
This invention is concerned with a device for simulating the view of a television or movie camera to assist the technical picture taker in selecting the size of the frame of the scenes to be...
4306716 Electronic game having light guide array display  
An electronic amusement apparatus having control electronics selectively energizing one or more of the segments of an array of illuminatable segments, with a unitary light control member having an...
4260220 Prism light guide having surfaces which are in octature  
The prism light guide is a longitudinal hollow structure made of transparent dielectric material. The structure has substantially planar inner and outer surfaces which are in "octature". The hollow...
4257670 Optical peephole device insertable in thick walls for panoramic viewing therethrough  
An optical device insertable through a peephole in the thick wall of a chamber such as a bank vault, making it possible for an observer to obtain a panoramic view of objects dispersed within the...
4251127 Wide-angle door viewer  
A wide-angle door viewer providing a large wide-angle outdoor view which can be zoomed and is readily perceptible without closely approaching the eyepiece, which comprises an optical lens barrel...
4245890 Gradient index of refraction for missile seekers  
A missile having a sensor in the nose thereof. The nose is in the shape of transparent ogive window which has an index of refraction that assumes different values at different positions on the...
4234857 Centrifugal gasdynamic window  
An unimpeded optical path across a low-pressure supersonic stream of a high-power laser is achieved by rotating a window assembly at a predetermined constant speed. The centrifugal gasdynamic...
4221470 High pressure sightglass for fluid flow tube  
Disclosed is a sightglass assembly of particular application for use with a laser flowmeter to measure flow velocities of high pressure fluid flowing through a tube. A short, thick-walled glass...
4215916 Submerged meter reading device  
For convenience, speed and economy in the reading of submerged water meters, as illuminated reading scope is provided which is extendable to draw in water. The scope is compressed after being...
4213029 Radiation transmissive housing having a heated load bearing gasket  
Apparatus for protectively housing radiation transmitting or receiving eqment is provided with a window in the form of a spherical segment, which is formed of material transmissive to radiation of...
4206537 Method of making a sight glass assembly  
A method of making a sight glass assembly generally including forming a housing having an opening therethrough provided with an annular wall, forming a lens having an annular peripheral wall...
4207542 Multiple shock aerodynamic window  
A multiple shock aerodynamic window for use within a laser system. The aerodynamic window provides separation between the pressure within the laser cavity and the ambient pressure adjacent thereto....
4201952 Gas laser aerodynamic window  
The aerodynamic window is formed of a contiguous pair of gas jet streams driven at subsonic velocity across the entire cross-sectional area of an annular laser beam. One of the jet streams has a...
4178078 Aerodynamic window  
An apparatus adapted for providing an aerodynamic window having a cylindrical configuration with an annular cross section capable of enveloping annularly a cavity therein is disclosed. The...
4172428 Scavengeable fluid for a flow pipe optical window  
A device for constituting in the wall of a pipe an optical pick-up window which may be scavenged by a protective fluid. A chamber is provided with an inlet for said fluid and an outlet for said...
4171400 Shaped press-forged normally frangible inorganic crystals  
A polycrystalline shaped article useful as a light-transmitting body or scintillation phosphor is formed from an essentially moncrystalline melt-grown macrocrystal ingot by pressing the ingot...
4162826 Sight glass assembly and method for its production  
A high impact sight glass assembly and production method are described, in which the glass lens is fused into an enamel coated metal ring such that the glass lens is fused to the enamel coating and...
4152049 Spatial filter having aerodynamic windows  
An improved spatial filter for operation with high power laser beams is provided wherein a first gas flow system and a second gas flow system cooperate to enclose a cavity therebetween capable of...
4150875 Pressure-resistant housing  
In a housing which is transparent to light of selected wavelength, a hypemispherical window of selected dimensions is formed of material which is transparent to light of the selected wavelength,...
4137540 Camera matte box  
A matte box for mounting on a camera and serving as a lens shade and as a support for filters, special effects, masks and the like. A shell for mounting on a camera and slidingly receiving a tray...
4121175 Gas bearing suspended rotating laser window unit  
A gas bearing suspended rotating laser window unit having a supporting structure adapted for mounting adjacent the aperture of a laser. The supporting structure rotatably suspends therein a laser...
4116529 Wide-angle spyglass  
An optical spyglass of a compact dimension to be mounted in a house door or the like for providing to an interior viewer a substantially 180° wide-angle outdoor view. Its optical system comprises...
4112388 Aerodynamic window method and apparatus  
A laser aerodynamic window with different inside and outside gas stream components having effective stagnation indices of refraction corresponding to the indices of refraction of the gases on the...
4075385 Anti-reflective coating for high energy optical components  
A sodium chloride or potassium chloride laser window is rendered anti-reftive by depositing, in order, an As 2 Se 3 layer, a NaF layer and an As 2 Se 3 layer. Near optimum thicknesses to permit...
4064826 Refrigerant liquid indicator  
A sight glass device for liquid line is provided which clearly demonstrates to an observer the state of the fluid in the line, and which magnifies even small bubbles of gas. The device includes a...
4065059 Repair gun for coke ovens  
A gun for repairing the refractory walls of a coke oven comprising an air-cooled, pressurized, insulated tube which contains an internal pipe for conveying refractory repair material. The tube is...
4063803 Transmissive end seal for laser tubes  
Transmissive crystalline materials, such as sapphire and quartz, are used as end members for laser tubes. Crystalline quartz end windows are hard sealed to a metal end bell of special construction...
4059347 Optical instrument and viewing method  
A see-through zone is provided of a shape and size so that the horizontal end portions of the zone will merge as an image defining a target frame into which the user can center a stationary or...
4057332 Peripherally cooled laser lens assembly  
A fluid cooled lens assembly is provided which comprises a housing mounting a lens or window where a window is a lens with infinite radius of curvature therein and a cooling passage included in...
4052608 Inspection glass light  
The present invention relates to an inspection glass light for the illumination and simultaneous observation of working operations in closed spaces having a lamp housing, an intermediate housing...
4050792 Observation port assembly  
An observation port assembly, arranged to be attached to a door and to permit a panoramic view with a maximum field of view of the area outside the door, including a boxshaped part, attachable to...
4037945 Indirect reflective window  
A reflective window for providing an indirect optical path to an object including an array having a plurality of reflective elements, each being disposed at an acute angle to the plane of the...
4018513 Optical window used in device for monitoring clarity of a fluid  
The measurement and reference photocells of an optical detector for a smokestack are disposed adjacent each other on one side of the stack. The measurement photocell and its light-accepting window...
3989360 Optical device  
Optical device comprising two optical elements made of germanium arranged parallel to each other and intended to have a high-power CO 2 laser beam crossing through them; helium at low temperature...
3976369 Alpha meter attachment for underwater optical systems  
An improved viewing port for underwater oceanographic vehicle provides for establishing a standard length optical test path in the underwater environment with no modifications or additional...
3973835 Security viewing device  
A security viewing device which provides a viewer on one side of a door with a view of a caller whether he is standing directly outside the door or concealing himself to one side. The device...
3954342 Optical device for monitoring clarity of a fluid  
The measurement and reference photocells of an optical detector for a smokestack are disposed adjacent each other on one side of the stack. The measurement photocell and its light-accepting window...
3942009 Directional radiation detector  
A directional radiation detector having a pyroelectric sensing medium for responding to radiation and a directional screen formed of a panel with a plurality of axial passages that restrict the...
3941460 Quick-opening sight glass assembly  
A sight glass assembly generally including a first housing section having an opening therethrough, mountable on a container wall having an opening communicating with a fluid contained therein so...
3936771 Subsonic flow aerodynamic window for high energy laser  
A subsonic flow aerodynamic window in a high energy gas laser, which seals off the laser optical cavity from the ambient gas, while minimizing the degradation of the laser output beam. Since the...
3935545 Method and apparatus for reducing diffraction-induced damage in high power laser amplifier systems  
Self-focusing damage caused by diffraction in laser amplifier systems may be minimized by appropriately tailoring the input optical beam profile by passing the beam through an aperture having a...
3922999 Sight glass with wear indicating device  
A means for detecting wear of the exposed surface of a transparent member such as a sight glass, forming at least a portion of the wall of an enclosure such as a vessel or a conduit, containing a...
3924246 Ultraviolet-transmitting window  
An ultraviolet-transmitting glass window assembly comprising a metalic mounting ring containing an ultraviolet-transmitting glass is made by placing a preformed ultraviolet-transmitting glass...
3922073 Light diffuser system  
A light diffuser system suspended from a ceiling below a light source includes a framework of T-bar members depending from the ceiling and defining rectangular openings. Secured in each opening is...
3918800 Impacting jet aerodynamic window  
An impacting jet aerodynamic window structure for use in systems where passage of a distortion free light beam is desired. Specifically this window structure is highly effective for use in subsonic...
3910676 Viewing device  
A first tubular member extends through a door. A second tubular member has a smaller diameter than the diameter of the first tubular member and is coaxially positioned inside the first tubular...
3907409 Aerodynamic window  
An improved aerodynamic window is provided for laser systems where the pressure in the lasing cavity is lower than ambient pressure. An opening is located in the system to permit a laser beam to...
3899243 Arrangement for viewing the interior of a pressure vessel  
A housing has an interior provided with two axially spaced and aligned openings, and is connectable in sealing relationship with a wall of the pressure vessel, so that one of the openings is in...
3894795 Plural element window construction for an opening of a laser cavity  
A window construction for a laser cavity comprising a plurality of monocrystalline elements transparent to a laser beam assembled in a common plane in fixed, sealed relation by a support...
Matches 251 - 300 out of 389 < 1 2 3 4 5 6 7 8 >