Abstract: A computer controlled perimetry system, which is easily operated even by an unskilled operator, for accurately measuring a visual field, and with which many patients can be effectively examined, has a dome having a hemispherical inner surface; a projector projecting a light spot onto the inner surface of the dome; an arm for horizontally moving the projector so as to trace a semicircle along the surface of a virtual hemisphere opposite to the dome; a first motor for driving the arm; a second motor for changing the projecting direction of the projector; a liquid crystal display for displaying the light spot projected onto the inner surface of the dome; a monitor display for observing a patient; and a computer storing a program for controlling the rotation of the first and second motors. Thus, the light spot projected by the projector can be swept to any point on the inner surface of the dome.

Abstract: A projection-type display device which is used in a projector device for projecting optical images spatially modulated by reflection-type liquid crystal panels onto a screen to display an image, wherein a wavelength separation mirror is arranged so that an angle exhibited by an optical axis of light incident on the wavelength separation mirror and the optical axis of reflected light becomes smaller than 90 degrees or polarization filters or polarization separation elements are arranged on an incident facet side or an emission facet side of optical separation elements.

Abstract: A projection apparatus includes a polarizing converter which converts a light beam from a light source to a polarized beam; a color separator which separates the polarized beam into color beams based on wavelength; first through third optical path modifiers each of which modifies an optical path associated with a corresponding one of the color beams; first through third polarized light separators, each of which receives a corresponding one of the first through third color beams from the optical path modifiers; first through third reflective image display elements, each of which receives a corresponding one of the first through third color beams from the corresponding polarized light separator and provides a reflected beam to the corresponding polarized light separator; a color combiner which combines the reflected beams from the reflective image display elements of the polarized light separator; and a projection lens which projects a color image.

Abstract: An overhead projector is provided which eliminates disturbing light on a projection screen (12) from parts of a picture plate (2) of the projector which surround a projected document (10) as well as light on the screen (12) which arises when documents are being changed on the picture plate (2). The picture plate (2) is covered with a first polarizing layer (3) which is a supporting surface for the document, by placing a second polarizing layer (9) in the path of the light close to a projector head (6, 7) and by arranging the polarization directions of the first and second polarizing layers (3, 9) perpendicular to each other so that light which first passes the first polarizing layer (3) where no document is placed and thereafter passes the second polarizing layer (9) is absorbed.

Abstract: A display apparatus of the type which forms a color image by modulating a plurality of lights different from each other in color by one or more display elements, includes a device for changing the color purity of at least one light by inserting or extracting a wavelength selection element into or out of the optical path of at least one of the plurality of lights, or changing the attitude of the wavelength selection element, and a device for supplying information as to whether the wavelength selection element is in the optical path of the at least one color light or information on the attitude of the wavelength selection element in the optical path of the at least one color light.

Abstract: A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.

Abstract: An imaging optical system includes at least one ghost image prevention element. Ghost images are prevented even when the imaging optical system includes an optical element that has at least one planar surface that is generally orthogonal to an optical axis of the imaging optical system, and is located in a light flux area with at least a central portion of the light flux area being generally parallel to the optical axis. The ghost image prevention element is especially useful in video cameras and digital cameras that use an image sensor having a planar surface that exhibits a high coefficient of reflection. The ghost image prevention element includes one planar surface, that is “tightly bound” to the planar surface of the optical element, and another surface that is curved so as to satisfy a given condition. The curved surface diffuses light that would otherwise contribute to a ghost image.

Abstract: A communication system for allowing a user (1) located in an observation zone to communicate with a person using a remote system at a remote location is provided. The communication system comprises a projector (6), a front projection screen (7), a two-way mirror (2), and a camera (3). The projector (6) is adapted to output a projected image along an image beam path. The front projection screen (7) has a downward-facing projection surface located in a plane above the projector (6). The image beam path impinges upon and illuminates the downward-facing projection surface of the screen (7) during use of the system. The two-way mirror (2) is located adjacent to and at an angle relative to the projection surface such that when the projected image is displayed on the projection surface, the projected image is reflected to the observation zone. The camera (3) is located behind the two-way mirror (2), such that the two-way mirror (2) is located between the camera (3) and the observation zone.

Abstract: A cabinet accommodates therein a discharge lamp 13, an ignitor module 7 applying a high voltage to the discharge lamp 13 for igniting the same, a lighting device 8A which is connected to the ignitor module and applies a discharging voltage to the discharge lamp so as to keep the discharge lamp turned on, a signal processing unit 9 providing an image signal in accordance with an input signal, an image display which, in response to the image signal from the signal processing unit, produces an image to be projected by use of a light of the discharge lamp 13, and a power supply supplying electric power to the above parts. At least a high voltage generating unit of the ignitor module 7 is arranged to be separated from the lighting device 8A and is disposed away from the signal processing unit 9 and close to the discharge lamp 13 for restraining malfunction of the signal processing unit.

Abstract: A projection-type image display device includes a light source, converging optics, a rod integrator having a first optical axis, a light deflecting structure, and a light beam separating structure. The light beam separating structure directs light to a digital micromirror device and modulated light from the digital micromirror device along a second optical axis of a projection lens that projects an image formed by the modulated light on a screen. The rod integrator is between the light beam separating structure and the projection lens in the direction of the second optical axis and is outside the optical path of the modulated light beam from the digital micromirror device. The rod integrator may include a solid rod member and a leaky ray shielding member at least at one of the entrance end, the exit end, and around the solid rod member. The converging optics may include a parabolic reflector and an aspheric lens.

Abstract: A light collection for an arc lamp includes a parabolic reflector having primary and secondary parabolic reflector sections, the secondary parabolic reflector section divided into subsections, resulting in multiple arc images. The light collection system combines high efficiency and etendue preserving aperture shaping, and is particularly useful in projection display systems.

Abstract: A stage lighting apparatus includes a lamp and a first light valve, which cooperate to project a first image and a second image wherein the second image is created by applying a function to a plurality of pixels of the first image. The plurality of pixels of the first image may be arranged in a straight line. Applying the function to the plurality of pixels of the first image may cause first, second, third, and fourth sets of the plurality of pixels to deviate from the straight line in first, second, third, and fourth directions, respectively.

Abstract: A system and method of displaying identification information for a projector system are disclosed. The method includes projecting a display onto a viewing surface with the projector system, and projecting an identification image onto the viewing surface over at least a part of the display with the projection system, wherein the identification image is configured to convey the identification information to a viewer.

Abstract: A first surface mirror includes a reflective layer (e.g., Al or Ag), at least one dielectric layer and at least one protective layer of or including high density diamond-like carbon (DLC). The high density DLC enables the protective layer to be applied at a relatively small thickness which enables undesirable color often associated with DLC to be prevented or minimized, while at the same time good protective characteristics (e.g., scratch resistance) can be realized.

Abstract: A light guide 1 is provided at the reverse side thereof with triangular uneven surfaces 1b at a predetermined pitch. The uneven surfaces 1b are integrally formed with the light guide 1 when the latter 1 is injection-molded. Incident light from a light incident plane is caused to be scattered at uneven surfaces 1b within the light guide and to spread in a main scanning direction. The light scattered is emitted from an emission plane. Intensity of light in the main scattering direction can be made uniform by lengthening the uneven surfaces 1b as the uneven surfaces extend from the light incident plane. A position where the light intensity becomes maximum in a sub-scanning direction can be changed by adjusting an angle between the ridgeline of the uneven surfaces 1b and the sub-scanning direction, and distributed characteristics of the light intensity in the sub-scanning direction can be also changed.

Abstract: The present invention discloses a cup trophy structure, including: a base; a figure object and at least one luminous object disposed on the base, and such luminous object being rotary and coupled to a control circuit by a circuit, and the control circuit being coupled to a switch for the user to turn on/off the control circuit in order to control the luminous object, such that the luminous object follows the instructions to produce different variations of lights and provide the best projection angle to project the light on the figure object by controlling the rotation of the luminous object to the figure object more prominent and produce an overall different light effect.

Abstract: A direct-type back light device includes a plurality of luminescent lamps, a rectangular frame having holes formed along opposing sides with the luminescent lamps inserted into the holes, a reflecting plate formed at a bottom surface of the rectangular frame, and at least one lamp holder attached to the reflecting plate and supporting the luminescent lamps.

Abstract: A small or size-reduced lighting apparatus for an inspection is disclosed. The lighting apparatus for an inspection comprises a lighting portion 3 having a large number of light emitters 2 provided circularly, and a guide member 5 including a large number of reflecting portions 6 for reflecting a part of lights emitted from the light emitters 2 and guiding the same light to an inspection object provided in a lower position, wherein the light for inspection which has been applied on and reflected by the inspection object can be fetched through the apertures among the reflecting portions.

Abstract: A portable message sign having a housing and a front surface angled with respect to a rear surface and an array of light emitting devices (such as LEDs) being angled so that the LEDs are parallel to the horizon. The LEDs are mounted at an angle to a printed circuit board (PCB), which is mounted between the front and rear surfaces. In one embodiment, the pins of the LEDs are of different lengths so that when mounted to the PCB the lens of the LED directs light at an angle with respect to the PCB. In another embodiment, a strip of hard material is laid down next to the holes in the PCB that through mount LEDs are inserted, which cause the LED to mount at an angle.

Abstract: An apparatus for recreating and simultaneously illuminating the visual features of a substantially planar visual image using illumination devices, the United States flag being a visual image utilized in one embodiment.

Abstract: An infrared LASER diode based high intensity light (100) for use as an aircraft landing light or searchlight in conjunction with night vision imaging systems. The high intensity light (100) uses infrared LASER diodes (110) installed into a heat sink (112) for temperature stability. The infrared light emitted from the LASER diodes (110) is transmitted to an optical positioning plate (106) by optical transmission means (108). The optical positioning plate (106) combines the emissions of the individual LASER diodes (110) to a single infrared light beam, which is collimated by an aspheric lens (102).

Abstract: An optical assembly for architectural illumination which includes a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented, off axis, parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a ring reflector, the segments of which designed to gather beams from both the collimating ring lens and the off axis reflector and the direct them in substantially the same direction.

Abstract: A light fixture is described. The light fixture includes a socket housing and a reflector housing. The socket housing includes a socket for receipt of a lamp, and a reflector housing mounting surface. The reflector housing includes a direct reflector for providing direct light onto a target lighting area and an indirect reflector for providing indirect light onto the target lighting area. The direct reflector includes a direct reflector first end, a direct reflector second end, and a direct reflector body extended between the first end and the second end. The direct reflector body extends sufficiently far to provide a cut off angle between a lamp provided in the socket and the direct reflector second end of less than about 50°. The indirect reflector extends from the direct reflector around a circumference of the direct reflector in an amount sufficient to shield a lamp provided in the socket. A facility having a plurality of ceiling mounted light fixtures, and a reflector housing are described.

Abstract: An adjustable reflector device is disclosed. The device consists of an adjustable double parabolic reflective skin with an adjustable lamp mount, incorporating a V-shaped perforated heat shield, attached. The two part reflective skin forms a double parabolic shape when flexed back against a reinforced spine. This flexible shape is secured by lengthwise adjustable chain retainers attached a both ends of the skin. The lamp mount slides onto a pair of threaded bolts secured to the skin and adjustment is achieved by tightening or loosening the appropriate nuts. The heat shield slides onto the lamp fitting and is positioned appropriately to deflect incident heat and light. This device can be used to provide variable conditions of artificial illumination.

Abstract: A Surface-Mounted, Billet-Formed Ball-Type Headlight Mount is disclosed. Also disclosed is a headlight mount that includes a ball dome member that attaches to the outside surface of the headlight housing. The mount further includes a plurality of attaching bolts extending outward from the inside of the housing to engage threaded apertures formed in an annular face. Furthermore, the mount assembly includes a carriage bolt having a flat-sided head.

Abstract: An overhead industrial light fixture suspended by a hook from a support assembly having a suspension stabilizer that engages the hook and is attached to the support assembly. The suspension stabilizer has two slots sized to receive and frictionally hold the upward and downward portions of the hook individually. A method for stabilizing the orientation of a suspended overhead industrial light fixture.

Abstract: A trailer hitch assembly (10) includes a frame member and a hitch receiver box (14). At least one mounting bracket (28) is carried on the frame member for securing the frame member to a vehicle. A utility light (40) is also carried on the hitch assembly (10) for lighting an area including the hitch receiving box (14).

Abstract: A light fixture with a light is electrically controlled by a magnetic switch positioned about the juncture between a door or movable cap and the frame such that the light may be switched on when the door or cap is away from the frame and the light may be switched off when the door or cap is closed next to the frame.

Abstract: An indicator lamp for a motor vehicle includes a plurality of light sources, and a plurality of linking elements. The lamp includes components that straighten out the light emitted by the light sources so that the light is propagated in a direction essentially parallel to a general direction of emisssion. These components include multiple first elements and a second element. East first element corresponds to one of the plurality of light sources. The first elements are able to distribute the light in a plane essentially perpendicular to the general direction of emission, in an essentially uniform way onto the second element. The second element is able to straighten out the incident light towards the general direction of emission.

Abstract: According to this invention, a side-emitting illumination device for uniformly distributing light is composed of an LED light source, a light-transmitting rod which permits total internal reflection, and outcoupling material affixed to an outer surface of the rod. Light enters the rod at one end and travels along the rod by total internal reflection. Light that hits the outcoupling material is angularly distributed based on the width of the outcoupling material.

Abstract: A twin-screw extrude having a novel fractional element has been invented that can provide different tip angles. The twin-screw extruder is suitable for processing thermo plastic, thermo set and other material. It has a barrel with two parallel intersecting bores, two sets of co-rotating fully intermeshed extruder elements that are linked to each other in non rotary manner forming continuous chain, each element operating in one of the bores and each screw being provided with multi lobbed elements that has special geometry.

Abstract: A rotary dispergator comprises a rotor (4) set on a shaft (5) of a stator (2) having a coaxial row of teeth (7) and an outer concentric row of straightening blades (8), encompassing the rotor (4) from the outside, the width of radial cuts between the straightening blades (8) of the stator (2) being several times smaller than their length. The rotor (4) has an impeller comprised of straight or curved blades (10), as well as a coaxial row of blades (11). A method of producing food products consists in that with the help of the dispergator a mechano-acoustic effect with an intensity of 100-500 W/kg of product is produced on the material to be comminuted placed into a container. With the use of rotary dispergator, various food products based on a vegetable material are produced: a soybean paste, a mayonnaise.

Abstract: A disc tribometer for measuring tribological, mechanical and thermal phenomena including at least a first rotary support for receiving a test sample, a second rotary support for receiving a second test sample, means for measuring torque applied to each of the supports, and at least one induction coil positioned to heat one of the test samples.

Abstract: A method for detecting and locating foreign inclusions in a drilled cylindrical shaft includes the steps of positioning at least one logging tube within the drilled shaft in parallel relation to a longitudinal axis of the drilled shaft, providing a temperature sensing means, identifying a plurality of temperature locations along the extent of the logging tube, pouring concrete into the drilled shaft, covering the at least one logging tube and monitoring in real time the temperature at various depths and radial directions within the logging tube during the hydration phase of the concrete curing. Temperature readings that differ from expected readings are deemed positioned in the vicinity of an anomalous inclusion. The range over which these anomalous readings are detected, the magnitude of the variance, and the orientation are used to predict the size and location of anomalies prior to the full curing of the concrete.

Abstract: A device for measuring temperature of a semiconductor integrated circuit includes first and second current mirror circuits, an N channel transistor connected to an output terminal of the second cur rent mirror circuit, an npn transistor connected to an output terminal of the first current mirror circuit and the N channel transistor, and an operational transistor connected to a node between the second current circuit and the N channel transistor. Currents that flow from the second current mirror circuit to the N channel transistor and from the N channel transistor to the npn transistor have different temperature coefficients. The operational amplifier corrects the difference in the temperature coefficients of these currents to output a voltage of ground electric potential standard.

Abstract: A system for determining congruence of a light field and a radiation field includes acquisition of first electronic image data representing a phantom as illuminated by light emitted by a light emitter, acquisition of second electronic image data representing the phantom as irradiated by treatment radiation emitted by the treatment radiation emitter, and determination of congruence of a light field produced by the light emitter and a treatment radiation field produced by the treatment radiation emitter based on the first electronic image data and the second electronic image data.

Abstract: A reclosable package has a slider-operated zipper and a flexible inner funnel bag that can be turned inside out to provide a spout for dispensing the package contents. Initially, the funnel bag is tucked inside the filled package in an unopened state. The funnel bag can be accessed by moving the slider in the opening direction to open the zipper and then reaching inside the funnel bag. The consumer then grasps a pull-out flap and pulls the funnel bag inside out. Then the tip of the funnel is snipped, cut or torn to provide a opening for dispensing product. The funnel directs the package contents, especially fine powders, away from the reclosable zipper profiles during dispensing so that one or both profiles do not become clogged with matter that might interfere with interlocking. The pull-out flap is formed by inverting and folding a distal portion of the funnel bag. The pull-out flap is preferably spot-sealed in position.

Abstract: A standup bags made of a flexible material and methods of producing these standup bags. In particular, the standup bags have at least one substantially flat surface which is free of seams and folds. When the bag is filled with a flowable substance, the pressure exerted by the fluid upon the flat surfaces allows the bag to be self-standing. Additionally, the standup includes at least one contour structure that defines the geometry of the bag and also contributes to the standup bag's ability to be self-standing when even partially filled with a flowable substance.

Abstract: Three rows of ball rolling grooves 23A to 23C are formed in each side of a guide rail 21, while being vertically arrayed. Three rows of ball rolling grooves 25A to 25C are also formed on the inner surface of each of the legs of a slider 22. The ball rolling grooves 25A to 25C are respectively disposed in opposition to the ball rolling grooves 23A to 23C to thereby form ball sliding passages 26A to 26C. In either of the upper or lower ball rolling passage 26A or 26C, each ball contacts, at four points, with the surfaces of the ball rolling groove 23A or 23C of the guide rail 21 and the ball rolling groove 25A or 25C of the slider 22. In the remaining ball rolling passages, each ball contacts at two points with the surfaces of the ball rolling grooves. One of lines L1 and L4, each of which connects two opposite contact points of those four ones in the upper or lower ball rolling passage is oriented in the same direction as of lines L2 and L3 connecting the contact points in the remaining ball rolling passages.

Abstract: A window-type cage for an angular contact ball bearing. Lubricant pockets are provided in the spherical pocket surfaces which are provided for guiding the balls. These lubricant pockets are all arranged in regions which lie outside the bearing points between the ball and the cage in both the circumferential direction and the axial direction, such that the wall thickness of the cage at the bearing points is not reduced by the position and design of the lubricant pockets.

Abstract: A connector for a fiber optic cable includes: a sliding actuator; an inner housing having a first end and an inner channel, the sliding actuator is engaged with the inner housing; and a ferrule assembly having a first side and a second side, the first side is mounted to the first end of the inner housing, the ferrule assembly includes a fiber stub extending from the second side, the fiber stub extends within the inner channel.

Abstract: An optical fiber converter is adapted to interconnect a first and a second optical connector together, each connector being of a different type. The optical fiber converter has a ferrule subassembly (3), a sleeve (5), a spring (4), a plug housing (2) and a receptacle housing (6). The ferrule subassembly has a first ferrule (32) having a first central hole, a second ferrule (33) having a second central hole, and a ferrule holder (34) holding the first and second ferrules together. An optical fiber (31) is retained in the first and second central holes, which are coaxially aligned. The sleeve coaxially retains the second ferrule and engages with the second optical connector. The plug housing retains the ferrule holder and is adapted to engage with the first optical connector. The receptacle housing engages with the plug housing, and is adapted to engage with the second optical connector.

Abstract: The present invention aims at providing an optical wavelength filter of band rejection type capable of reliably and stably blocking a light of a desired wavelength from passing through. To this end, the optical wavelength filter of the present invention comprises a plurality of optical filter sections each blocking the light corresponding to the selected wavelength from passing through, the respective optical filter sections being cascade connected to be in a multi-staged structure, wherein the selected wavelengths in the optical filter sections are deviated from one another, to form a blocking band having a wavelength band corresponding to a deviation amount.

Abstract: A connector of the invention is a connector capable of suppressing electrical crosstalk between optical devices, preferably performing the optical coupling of the optical devices and the electrical coupling by electric terminals. A first connector housing formed of a conductive resin is disposed with a first optical device accommodating part for accommodating a light receiving device. A second connector housing formed of a non-conductive resin is disposed with a second optical device accommodating part for accommodating a light emitting device and electric terminals. The coupling end faces of optical fibers are fixed to a plug connector and the plug connector is inserted into a plug connector fitting part. This insertion allows optical coupling of the optical fibers to the light emitting device and the light receiving device, and it allows electrical coupling of the above electric terminals to wires fixed to the plug connector.

Abstract: An optical for wavelength reference measurement has in essence an optical conductor with integrated fiber Bragg grating that has a transmission maximum at a desired wavelength. Arranged downstream of the fiber Bragg grating is a photoreceiver receiving the measuring radiation beam passing through the fiber Bragg grating. If desired, it is possible to use a beam splitter to produce a reference radiation beam that is detected in a further photoreceiver.

Abstract: An image viewing device is described which is capable of producing images comprising at least a 180° field of view, also referred to as fisheye images. The device employs an extremely small aperture in conjunction with an optical block comprised of a refractive material. The light rays from an image pass through the aperture whereupon they are compressed in angle by the optical block to produce the fisheye image. An optional image intensifier may be employed to enhance the image produced by the optical block. Additionally, optional filters, viewers, and recording devices may be employed to enhance the image produced as well as to provide a permanent record of any images produced. The image viewing device is capable of producing high resolution color, black and white, and monochromatic fisheye images under various weather and lighting conditions.

Abstract: A monitoring camera includes a camera housing, a camera body housed in the camera housing, a lens barrel protruding from the camera housing, and a lens housing mounted for protecting the lens barrel. The lens housing is detachably mounted on the camera housing by bayonet engagement.

Abstract: When the main power of a camera is turned on, a set member (14) is rotated from an initial position to a set position by an operation member (15) on the camera side and once stops at a midway position. At this time, a second blade group (19) retreats from an aperture (1a) and a first blade group (16) enters the aperture 1a to a position not covering an image pickup device (4), so that the aperture (1a) is opened and it is made possible to display a subject in an electronic viewfinder. When a release button is pressed, the set member (14) is rotated from the midway position to the set position and thus the aperture (1a) is covered with the first blade group (16). After this, when drive members (10, 12) are attracted to iron cores (8, 9) and the set member (14) is restored to the initial position, the drive members perform light exposure operation in order.

Abstract: When one print job is distributed and printed by a plurality of printing apparatuses, it is intended that a desired print result of the user can be certainly obtained. A virtual distribution printer 12 detects an attribute of the print job which is inputted from an application 11, sets the minimum division unit, in accordance with the detected attribute, in which even if the inputted print job is divided, the print result is not changed, divides the print job on the basis of the minimum division unit, and distributes and outputs the divided print jobs to a plurality of printers 13 to 16, thereby enabling the print result expected by the user to be certainly obtained.

Abstract: A print control apparatus including a disposing unit for disposing, on pages, document data described in a page description language; a detecting unit for detecting a page break allowable position in the document data on the basis of page break inhibition information related to the document data; a first storage unit for storing the page break allowable position detected by the detecting unit; a second storage unit for storing a disposition range in each page for the document data to be disposed by the disposing unit; and a determining unit for determining a page break position in the document data on the basis of the page break allowable position stored in the first storage unit and the disposition range in each page stored in the second storage unit, such that part of the document data to be disposed in each page does not overflow the page.