41 results about "Cone of light" patented technology

A Catadioptric Light Distribution System is disclosed. The system collects and collimates the hemispherical pattern of light emitted by a Lambertian light emitting diode (LED) into a collimated beam directed essentially parallel to the optical axis of the LED. The system comprises a circular condensing lens having a center axis that is aligned with the optical axis of the LED and which is configured to receive an collimate a portion of the light from the LED defined by a central cone of light centered around the optical axis. A parabolic reflector having circular opening formed therethrough is centered on the center axis of the parabolic reflector and is positioned around the LED to receive and redirect the light which does not form the cone that impinges upon the condensing lens in a collimated annular beam in a direction away from the condensing lens. The light reflected and culminated by the parabolic reflector is directed onto a circular annular double bounce mirror which is configured and positioned to receive the annular beam from the parabolic reflector and reflect that beam of light 180° so that it is collimated in an annular beam which passes around the edge of the condensing lens. Thus, substantially all the light emitted by the LED is culminated into a beam of light that is substantially parallel to the optical axis of the LED by either the condensing lens or by the combination of the parabolic reflector and the double bounce mirror.

The invention relates to an LED illumination module having an LED (23) and a rotationally symmetrical, integral, light-transparent auxiliary optic (10) having an inner converging lens part (14) and an outer reflector part (16). The auxiliary optic (10) has an opening (11) in the form of a blind hole which is arranged at the rear and in which the LED (23) can be displaced longitudinally and axially along the optical axis (20) such that, owing to the displacement, a change in the cone of light from a cone of light having a cone angle < 12° to a cone angle >20° can be produced and, in at least one LED position with respect to the opening (11) of the auxiliary optic (10), an inner region of the cone of light is illuminated homogeneously over a cross-sectional area at right angles to the optical axis (20).

The invention discloses a single-core and multi-core fiber coupler and fiber access into rafah cone coupling method. It peels the ending coating layer of a single-core optical fibers and a multi-core fiber, direct financial with the fiber welding machine in stripping department, received and in the implementation of solder joint heating department fused biconical taper, monitoring optical power, when cone waist rafah small cone of light power distribution to the target, spectrophotometer stopping widening cone. The method is the technical characteristics of single-core fiber and multi-core fiber fusion welding, the solder joint implemented fused biconical taper, thus forming a cone of light energy distribution, optical power of distribution. The method can be single-core optical fiber distribution of power coupled multi-core optical fiber to each core, or multi-core fiber coupling of light waves to single-core fiber, to achieve optical spectrophotometer and cooperation functions.

A display system is disclosed that includes a light source, an integrator rod receiving a light beam from the light source and producing an integrated light beam, a beam splitting device splitting the integrated light beam into at least a first cone of light and a second cone of light, the cones of light having complementary intensity distributions, and at least a first spatial light modulator and a second spatial light modulator, wherein the first spatial light modulator is capable of selectively reflecting portions of the first cone of light in an ON direction and the second spatial light modulator is capable of selectively reflecting portions of the second cone of light in an ON direction. The display system further includes a combining device for combining the selectively reflected portions of the cones of light in the ON direction and projection optics for projecting the combined reflected cones of light.

A lighting device with variable angle of emission includes a light source, and a lens system comprising two lenses, a primary lens and a secondary lens. The two lenses and the light source are arranged along an optical axis and the distance between the primary lens and the secondary lens is variable, in order to vary the angle of emission of the cone of light rays generated by the lighting device. In one example, the primary lens has a numerical aperture of at least 0.7, the primary lens is an aplanat, and the secondary lens is designed so as to image to infinity, at a certain distance of the secondary lens from the primary lens, a virtual image of the light source generated by the primary lens. According to a second aspect, the illumination factors are distinguished by the fact that the primary lens has a numerical aperture of at least 0.7, and that the secondary lens may be moved by a distance extending in a range in which the secondary lens does not capture the whole of the cone of light rays generated by the primary lens.

A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured rooms. The alert system includes a voice signal, such as “EXIT LOCATED HERE,” to signal that the location of the voice is also the location of the exit. A white noise signal generator is used to supplement the voice signal and produces a sound that is particularly localizable by the human ear. A strobe light and a laser are used to produce a visual guide to the location of the exit. The strobe light is flashed when the word “HERE” is used in the voice signal. The laser is used to produce a cone of light that points towards the fire exit alert system.

An optical system design for measuring the velocity of fluids flowing through pipes or other conduits is disclosed. The optical system is comprised of a means for delivering two beams through a window in the wall of the pipe, focused to two points aligned along an axis of the pipe and separated by a known distance, and means for detecting light that is scattered by particles carried in the fluid stream through a second window, that is disposed on the opposite side of the pipe. By measuring the time delay between detected signals, the velocity of the fluid can be determined. The delivered light beams are focused in a shallow cone of light and are blocked by an obstruction disposed behind the second window. The scattered light passes through an aperture behind the second window that surrounds the obscuration, and is focused on to a detector surface.

Method and systems for improving resolution of imaging systems, such as a microscope or a medical ultrasonic scanner, are provided. The resolution of the microscope is improved by reducing direct illumination of unrelated regions of an object under examination. According to an aspect of the present invention, a method is provided to reduce the direct illumination of the unrelated regions in a detectable region such as a cone of light that otherwise could generate substantial noises. In another aspect of the invention, a method is provided that focuses the illumination beams such that the width of the projected beam spot is narrowed, preventing the generation of a large amount of noise. In particular, the width of the illumination beam is narrowed such that the size of the projected illumination beam is smaller than the field of view of the microscope.; In another aspect of the invention, a system according to the principles of the present invention is provided, wherein the illumination beam of light is such arranged that the overlap of the path of the illumination beam of light and the detectable region is reduced.

A device for the large-screen projection of digital images onto a projection screen having a light source and a reflector for producing a cone of light and for projecting the light emitted by the light source through an image generator and an object lens onto the projection screen and having a 3D-sectored polarization wheel which can be driven by a motor and which comprises polarizing sectors in the optical path of the light emitted by the light source, wherein the motor of the polarization wheel is configured such that it can drive the wheel in increments, and an electronic control unit is provided which synchronizes the motor of the polarization wheel and synchronizes with the image sequencing of the image generator such that each individual image is projected through the polarizing sector associated with its polarization.

The invention discloses a line light spot optical lighting system based on a cylindrical surface array. The wall faces of closed space for containing a light source O include a saddle-shaped incidence face (4) located right in front of the light source, a first semicircular cone face incidence face (5) and a second semicircular cone face incidence face (6), and the first semicircular cone face incidence face (5) and the second semicircular cone face incidence face (6) are located above and below the light source. A half-cylindrical-face emitting face (1) located right in front of the closed space, a first total reflection camber surface (2) and a second total reflection camber surface (3) are arranged on the periphery of the closed space, wherein the first total reflection camber surface (2) and the second total reflection camber surface (3) are located at the upper portion and the lower portion of the closed space. The emitting face (1) is formed in the manner that a plurality of strip-shaped cylindrical mirror units are distributed along the half cylindrical face in an array manner one by one, and the strip-shaped cylindrical mirror units have the gathering function on light rays. Obtained line light spots are fine and narrow in distribution; and in addition, the margin sharpness is good, light bands are evenly distributed, and the line light spot optical lighting system is suitable for indoor and outdoor decorative lighting occasions.

The invention relates to a reflector unit of an efficient low-glare LED lamp. An LED light source is arranged at an opening at one end of the reflector; the LED light source is pressed to the upper end surface of a heat dissipator; a convex lens is mounted at an opening at the other end of the reflector; the convex lens extends out from an outer side end surface of a housing mounted on the upper end surface of the heat dissipator; the inner diameter of the opening at one end is smaller than that of the opening at the other end; the inner wall, from the opening at one end to the opening at the other end, of the reflector is an arc-shaped surface which protrudes outward; the end surface, located at the opening at the other end of the reflector, of convex lens is an arc-shaped surface which is sunk toward the convex lens; the surface, located out of the reflector, of the convex lens is an arc-shaped surface which protrudes outward; and a connecting terminal for being connected to the LED light source is mounted on the heat dissipator. According to the reflector unit provided by the invention, the reflector is matched with the convex lens in structure, shape and dimension, thereby forming the shape, the light ray converging enhanced effect of which is the best. The light rays passing through the reflector and the convex lens form uniform conical light columns. The range, the uniformity of ground light rays and the illumination intensity on the ground of the reflector unit can satisfy the actual demands.

An apparatus for forming stereo image pairs is disclosed. The apparatus comprises a set of perspective apertures within a perspective aperture plate, separated within a stereoscopic horizon by an inter-aperture distance. An offset aperture is disposed inside an illuminator of the apparatus. The offset aperture is positioned to form a cone of illumination that is mirror symmetrical with respect to the two perspective apertures. The perspective apertures are adjustable both in size and in their position within the aperture plate in order to position them with respect to a cone of light produced at the perspective aperture plate. The offset aperture is similarly adjustable in size and position. The arrangement ensures that light illuminating an object viewed using the apparatus has a narrow cone of direction and angle of incidence, which ameliorates negative effects that occur in stereoscopic systems with objective lens systems having large numerical apertures.

An optical navigation module for receiving control from an object is provided. The optical navigation module includes a module surface above which the object is disposed; a light source located under the module surface and configured to project a first cone of light to the object along a first optical axis through a first optical construction; and a light sensor located under the module surface and configured to detect a second cone of light that is resulted from the first cone of light being reflected by the object along a second optical axis through a second optical construction, and thereby to collect a spatial intensity profile of the reflected light. The intersection of the first optical axis and the second optical axis is below the module surface.

A cone-of-light projection system projects a shell of laser light (or other electromagnetic radiation) using a fiber-optic bundle. Incidence optics directs a laser beam to be incident to the fiber-optic bundle at a predetermined angle of incidence, resulting in the projection of a conical shell of light. For the exemplary embodiment, the angle of incidence is non-orthogonal to the fiber-optic bundle, resulting in the projection of a conical shell of light. Thus, the laser projection technique converts a beam of laser light (or other electromagnetic radiation such as UV, visible, IR or microwave radiation) into a conically extending shell of light that in the exemplary embodiment is substantially conical. In one application, the laser projection technique can be used in industrial applications to assist in joining a cylindrical element to another surface.

The present invention provides a method for obtaining high energy density and high brightness converged light via the convergence of multi-level series confocal conic surface secondary reflection units. The light convergence system of the method comprises multi-level light converging layers, and may also comprise planar reflecting layers or light-reflecting channels. The multi-level converging layers are directly connected in series, or the multi-level converging layers, the planar reflecting layers and the light-reflecting channels are connected in tree form in series, to form the light convergence system. The total convergence ratio of the light convergence system is sum of products of the convergence ratios of all levels of the secondary reflection units. Each level of the light converging layers is composed of a plurality of confocal conic surface secondary reflection units having special light converging effect; non-converging planar reflecting layers or light reflecting channel layers may be disposed among light converging layers, and are used for transferring the light into the next level converging layer or for output; and new incident light may be arranged among the multi-level light converging layers. The method can be widely used in a variety of occasions that need to enhance light signals, light energy density, and brightness, and will play an important role in the field of optics, solar energy utilization, etc.

The present invention relates to a flashlight having a casing, a light source and a lamp head with a lens attachment that can be displaced longitudinally axially relative to the light source in order to focus the emitted cone of light. The object of the present invention is to provide a flashlight that, on the one hand, enables the reflector to be displaced smoothly relative to the light source and, on the other hand, prevents involuntary shifting of the focusing that has been set. According to the invention, the flashlight has a clamping device for fixing the lamp head in a selectable longitudinal axial position.