Abstract:
The present invention relates to improved optical devices and reflection control techniques. In one aspect, the invention provides an optical device (40) comprising an array of substantially tubular elements (42) and one or more reflective surfaces (46) wherein at least one of the reflective surfaces positioned behind the tubular elements is tilted with respect to the optical path of the device. This orientation of the reflective surface results in incident light (48) from a source (50) in the field of view of the device being reflected from the tilted surface and captured by the array of the elements, rather than the reflected light being projected outward from the device where it is perceived by a viewer (52), particularly a viewer in the field of view.
Abstract:
A vision saver for use with a computer monitor (5) which relieves eye strain, reduces focusing problems, minimizes eye convergence, reduces the number of eye and head movements by an operator using a computer keyboard (12) with the computer monitor, and reduces glare. The vision saver comprises first and second reflecting surfaces (2, 3) and a supporting structure (6, 7) for supporting the reflecting surfaces in spaced relation in front of the computer monitor such that the first reflecting surface (2) faces the screen (11) of the monitor (5) and the second reflecting surface (3), and the second reflecting surface (3) faces the first reflecting surface and outwardly from the screen of the monitor whereby a person can visually observe the screen of the computer monitor by viewing the second reflecting surface which can advantageously be positioned closer to the computer keyboard than the screen of the monitor.
Abstract:
A mirror-type device for use in the range of X-rays and UV rays comprises the periodic stacking of a system of superposed layers on a support (10). The system comprises a bottom layer (11, 21) of a first heavy element which is reflective at the wavelengths at which the mirror is used, and a top layer (13, 23) of a light so-called spacer element which is optically unabsorbent at these wavelengths, and is characterized in that said system comprises, between said bottom layer and said top layer, an intermediate layer (12, 22) of a second heavy element which is reflective at the wavelengths used, thereby forming a three-layer system (S1, ..., Sn), in that the heavy elements are selected so that they form, with the spacer element, two couples one of which, said first couple, is more absorbent at the wavelengths used and has a lower real and complex index contrast ratio than the other couple, said second couple, and in that the heavy element of this first couple is selected so that it forms the bottom layer of the three-layer system, the intermediate layer being comprised of the heavy element of the second couple.
Abstract:
A condensation-free, self-supported shower mirror assembly is heated by water dispersed into a temperature-control space behind the mirror (211). The water is supplied by a supply tube connected from a showerhead pipe (200) to a dispenser which disperses the heated water in either liquid or spray form, preferably from holes in a tube mounted in such temperature-control space. Also the tube acts as a gasket to prevent the heated water from leaking through the front of the mirror (211). The back surface of the mirror (211) is thereby heated to raise the temperature of the front surface of the mirror (211) sufficiently to eliminate water condensation thereon. In one version, mirror adjustment is accomplished through a single flex-joint, such as a hinge of a ball joint which is physically separated from the supply tube. In a preferred version, mirror adjustment is accomplished through a flex-arm (206) which allows rotatable and translational movement. Preferably the supply tube is carried inside the flex-arm (206); the supply tube is mounted by friction fit in the ends of the flex-arm (206). The flex-arm is attached by break-away distal proximal joints so that the parts will not be damaged in case of trauma.
Abstract:
By providing a monitor (VDU) having a mirror (C), an operator (B) of the monitor can see (RV1, RV2) what is happening behind him or her without having to turn around or look over their shoulder. This has been found to considerably reduce distraction of, and improve the concentration of, the operator. The invention is applicable to computer monitors, security monitors, televisions and so on. The invention further relates to a mirror adapted to be mounted on a monitor to afford an operator a rear view.
Abstract:
A method of constructing a thin film mirror, which method comprises constructing the mirror from thin plastics film on a suction chamber (8) which has: (i) top and bottom edges (AA', BB') which lie on a required mirror surface; (ii) ends that each have a contact surface to the thin plastics film that lies on a required mirror surface which can be developed from a plane so that the thin plastics film is able readily to be attached; and (iii) no abrupt discontinuities in a mirror support edge part (ABC) of the suction chamber.
Abstract:
The invention concerns a reflector based on unsaturated polyester resins, the surface of the blank having an average surface roughness of less than 0.5 mu m. The reflector is produced by injection moulding a moulding compound based on unsaturated polyester resins and subsequently applying a reflective metal layer to the surface of the blank. The polyester moulding compound is fibre- and styrene-free.
Abstract:
A compact projection illumination system (6A) includes a low profile housing (20A) having an optical system (11A) for directing high intensity reflected light to an image forming display device (24A) mounted substantially horizontally in the housing (20A), a projection lens arrangement (22A) comprised of three groups of optical elements aligned along a common optical axis with a variable vertex length and wide field coverage angle, and a display control system (25A) coupled electrically to the image forming device (24A) includes a compression logic arrangement for compressing high resolution information by eliminating certain horizontal and vertical pixel image information during one frame cycle and by eliminating certain adjacent horizontal and vertical pixel image information during the next frame cycle.
Abstract:
A metallized polymer mirror construction having improved durability against delamination and tunneling, comprising: an outer layer (25) of polymeric material; a metal oxide layer (24) underlying the outer layer (23) of polymeric material; a silver reflective layer (23) of silver covering underneath the metal oxide layer; and a layer (20) of adhesive attaching the silver layer (23) to a substrate (20).
Abstract:
A dielectric interference mirror and a method for making same are described. A low-cost and laser flux resistant mirror is obtained by means of a plane polished substrate (2) of which the surface has been replicated with a thermoplastic resin (4), said substrate being coated with at least one colloidal layer (6) having a low refractive index, and at least one colloidal layer (8) having a high refractive index, said layers being arranged alternately.