Abstract:
Se forma un espejo moldeable térmicamente, depositado por espurreo sobre una hoja tal como vidrio un revestimiento reflectante que utiliza una capa de base de silicio o una combinacion de películas de silicio y de acero inoxidable, una capa reflectante formada de una película metálica reflectante tal como titanio o aluminio y una capa protectora que comprende preferiblemente nitruro de silicio; el espejo resultante puede moldearse térmicamente a temperaturas elevadas para formar un espejo curvo que tiene un revestimiento reflectante libre de defectos inconvenientes.
Abstract:
Un concentrador de luz no formador de imagen; el concentrador tiene una forma definida por dR/dfi=R tan alfa, en donde R es un vector de radio desde un origen hasta un punto de reflexion de un rayo de borde de luz a partir de una superficie reflectora, y fi es un ángulo entre el vector R y una apertura de salida del concentrador, y las coordenadas (R, fi) representan un punto sobre la superficie reflectora, y alfa es un ángulo que forma el rayo de borde de luz desde un punto de origen con una normal, hasta la superficie reflectora.
Abstract:
@ The laser beam (2), once spread radially by a convex reflector (4) or by a concave lens, is made to converge linearly by means of a cylindrical-concave reflector (5). The line of light L obtained on an object is a constant and non-flickering one, unlike that obtained by a conventional apparatus which reflects a laser beam by means of a rapidly rotating polygonal-prismatic mirror to give an apparent line of light on an object. Various patterns of lines are obtainable by making the cylindrical-concave reflector (5) have a plurality of cylindrical-concave reflective surfaces curved about different axes. A line on a curved surface is produced by variation of the curvature of the concave reflector along the axis of curvature.
Abstract:
In a luminaire for illuminating signs, a reflector having segments for redirecting light to various areas of the sign so as to create a uniformly illuminated sign.
Abstract:
Disclosed are multi-stage systems (10) for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror (20) as a primary concentrative device and a non-imaging concentrator (30) as a secondary concentrative device with concentrative capabilities of primary and secondary stages (20, 30) selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for layer pumping and in other photothermal energy utilization processes.
Abstract:
A main mirror for a reflecting telescope comprises a plurality of individual polygonal reflecting elements (1 to 11) and positioning and adjusting elements (12) connected thereto. Prior art main mirrors of this type have a poor capacity for transmitting point images and for modulation and are unsuitable for use in the infrared region, because the positioning and adjustment elements, in particular the measurement sensors arranged in the region of the separating lignes between the individual polygonal reflecting elements (1 to 11) emit interfering thermal radiation. Furthermore, the polygonal reflecting elements (1 to 11) of prior art main mirrors (20) are expensive to manufacture. In order to remedy these drawbacks, the reflecting surface forms a complete circle by means of connecting reflecting elements (1 to 8) connected radially to the outer edges of the polygonal reflecting elements (9), the reflecting elements (1 to 11) are made from a lightweight preformed material, and the positioning and adjustment elements (12) are arranged below the reflecting elements (1 to 11).
Abstract:
A floodlight reflector which provides for the desensitizing of manufacturing imperfections and/or variations through the use of flutes the planes of which are spaced at least 15° away from a plane containing a linear light source.
Abstract:
A variable focal length mirror assembly incorporates a rigid circular structure (18) defining a hollow chamber (21) with a circular aperture (19). A flexible elastomer (12, 13) having a reflective coating (11) is disposed across aperture (19) with coating (11) outwardly facing. The elastomer (12, 13) is peripherally gripped and clamped by a circularly-extending clamp means (15,16) located radially outwardly of the structure (18). The clamp means (15,16) are mounted for movement axially of the structure (18) in order to render flat that portion of the elastomer (12, 13) covering the aperture (19) in the absence of any applied elastomer deformation force. Means (20) for applying elastomer deformation forces are provided.
Abstract:
Apparatus for projecting luminous lines by means of a laser beam. A laser beam from a generator (1) is spread by a concave lens (2) and passes through a condensing lens (3) for focusing the laser beam on the object. A reflector (6) located at a position subsequent to the condensing lens (3), has a cylindrical reflecting surface (5) from which the rays of the laser beam reflect unidirectionally at gradually decreasing angles with respect to the reflector, whereby the laser beam is reflected at different angles at different points across the reflecting surface (5), transversely of the laser beam thereby forming a fan or sector-shaped beam (7).
Abstract:
A reflector intended to be illuminated by a radiating source and to procedure, in response to this illumination, a discreet array of light points characteristic of the reflector and the position thereof with respect to the radiating source and forming an imager therewith. This reflector comprises a plurality of adjacent undulations each carrying a crest and a through, said undulations being arranged such that discreet array of points seen by the imager is distributed along a straight or curved line.