2497 results about "Triangular prism" patented technology

The purpose of the invention is to provide a light guide of a variety of forms having a uniform distribution of brightness in the plane and a planer light source device for a liquid crystal display device which uses such light guide. The light guide comprises a first surface which is a surface to which a natural polarization light is incident and a second surface other than the first surface which is an exit surface of a specific polarization light into which, said natural polarization light is modulated, wherein;said light guide has an interface of two materials of different indices of refraction oriented at an angle of thetaB+ / -alpha degrees relative to the primary propagation direction of said incident light, said thetaB being an angle satisfying Brewster's condition, more than two orientations of said interface exist in a single light guide, and the difference between the indices of refraction of the two materials of different indices of refraction is between 0.001 and 1.0. thetaB is typically about 45 degrees. The light guide comprises a first transparent member having a plurality of upwardly convex right angle isosceles triangles on a first surface thereof and a first index of refraction and a second transparent member having a plurality of downwardly convex right angle isosceles triangles on a second surface thereof and a second index of refraction, and said first surface and said second surface contact each other.

A display system includes light sources disposed at two different light input ends of a light guiding plate; a double-sided prism sheet disposed on a light emitting side of the light guiding plate, and having on a first surface facing the light guiding plate a triangular prism bank extending in a direction parallel to the light input ends of the light guiding plate, and on a second surface, opposite to the first surface, a cylindrical lens bank extending in a direction parallel to the triangular prism bank; a transmissive display panel disposed on a light emitting side of the double-sided prism sheet; and a synchronization driving section causing the transmissive display panel to display two different images in synchronization with the light sources, wherein light from the light sources is emitted through the transmissive display panel at angles corresponding to right and left parallax, producing a stereoscopic display.

An optical image stabilizer is used to compensate for an unwanted movement of an imaging system, such as a camera. The camera has a folded optics system using a triangular prism to fold the optical axis. Two actuators are used to rotate the prism around two axes in order to compensate for the yaw motion and pitch motion of the camera. The prism can be mounted on a gimballed system or joint and two actuators are operatively connected to the gimballed system in order to rotate the prism. Alternatively, the folded optics system uses a mirror to fold the optical axis, and two motors are used to rotate the prism.

This is directed to a case for securing and protecting an electronic device. The case can include a cover connected to a pouch by a hinge such that the cover can be overlaid over a device interface (e.g., a device display). The case can be constructed by layering and combining several types of materials, including for example materials having resistant outer surfaces, materials limiting the deformation of the case, materials providing a soft surface to be placed in contact with the device, and rigid materials for defining a structure of the case. In some embodiments, the case can include a tab that allows a user to fold open the cover of the case to form a triangular prism. The prism can be placed on any of its surfaces such that the device can be oriented towards a user at particular angles (e.g., a typing-specific orientation and a media playback orientation).

A display system includes respective light sources disposed at two opposed light input ends of a light guiding plate. A double-sided prism sheet is disposed on a light-emitting side of the light guiding plate and includes, on a first surface facing the light guiding plate, a triangular prism bank extending in a direction parallel to the light input ends of the light guiding plate. The double-sided prism sheet includes, on a second surface, opposite to the first surface, a cylindrical lens bank extending in a direction parallel to the triangular prism bank. A transmissive display panel is disposed on a light-emitting side of the double-sided prism sheet. A synchronization driving section alternatively illuminates the respective light sources so the transmissive display panel displays two different images. The light from the light sources is emitted through the transmissive display panel at respective divergent angles producing two images corresponding to right and left parallax images, producing a stereoscopic display.

A white beam with high color-rendering index is formed by uniting a collimated red beam and a collimated blue−green beam, the latter having as its source a blue LED with a green phosphor. The white beam is formed by a prism with an amber low-pass dichroic filter. The prism cross-section can be either a square or an equilateral triangle. The triangular prism can have one third of its mass reduced by stepped facets. Both types of prism can be elongated to accommodate multiple collimators. Switching between white, red, and blue−green allows application to police vehicles.

The invention provides a bionic anti-sticking lyophobic and oleophobic pasting film and belongs to the technical field of a polytetrafluoroethylene product. The surface of a thin film layer is provided with a first-grade convex hull type structure and a second-grade convex hull type structure, wherein each convex hull type structure is formed by convex hull structure units; the bottoms of the convex hull structure units are circular, regularly triangular, regularly quadrilateral or regularly hexagonal; and a convex hull is in a bowl shape, a cylinder shape, a cone shape, a triangular prism shape, a quadrangular shape or a hexagonal prism shape. The bionic anti-sticking lyophobic and oleophobic pasting film can be randomly bent, and is used on an irregular surface to convert a previous hydrophilic and oleophilic surface into a lyophobic and oleophobic surface, so that the bionic anti-sticking lyophobic and oleophobic pasting film can be widely applied to fields including automobiles, kitchen utensils, electronic products and the like.

A multifocal lens system to be used for digital cameras for setting any one of a plurality of lenses in a picture taking (image capturing) position comprising a wide-angle lens (shorter focal length lens) mounted in front of an image sensor in a picture taking (image capturing) position, a telephoto lens (longer focal length lens) mounted alongside the wide-angle lens, a parallelogram prism (rhombic prism) or a pair of triangular prisms removably arranged between the two lenses at the rear of them. When the wide-angle lens is to be used, the parallelogram prism or one of the two triangular prisms is to be removed from the rear of wide-angle lens so that the wide-angle lens can be focused on the sensor enabling light to pass therethrough. The telephoto lens is so positioned that it may be focused on the image sensor through the parallelogram prism or being reflected by the triangular prisms enabling light to pass therethrough when a part of the parallelogram prism or one of the two triangular prisms is placed in front of the image sensor to cover the imaging area of the sensor and to shut the light through the wide-angle lens to the sensor. By moving the prism from the rear of each lens, one of the two lenses can be positioned for picture taking (image capturing).

A process for cost-effectively and rapidly insulating a desired surface with spray foam insulation is described which includes the application of a polyurethane foam dispensed through heated conduits into a dispensing gun having a nozzle with essentially planar divergent lips having a triangular prism opening, the lips of the nozzle diverging at an angle of between about 5 and 35° inclusive, more preferably between 8 to 15° inclusive, most preferably 10 to 12° inclusive, thereby achieving application rates which are in excess of 70 Ft2 / min, and optimally in excess of 100 Ft2 / min.

A backlight unit includes a light guide panel where a holographic pattern is formed. A point light source emits light to an edge of the light guide panel. A refractive member is provided between the point light source and the light guide panel and reduces an azimuth angle of light incident on the light guide panel. The refractive member includes, from an optical axis of the point light source, a light transmission zone transmitting light as it is, a blaze zone where a blaze pattern having a saw-toothed shape in which one surface near the optical axis and substantially parallel to the optical axis is formed, and a prism zone where a triangular prism pattern is formed. The backlight unit may further include a diffusive member diffusing light emitted from the point light source to be incident on the refractive member.

A light guide includes a first incident portion at an end side thereof near a light source, a stepped portion disposed on a rear surface side thereof in an axial direction and wholly reflects a portion of guided light, and a radiating portion disposed on a front surface side thereof in the axial direction that radiates the wholly reflected light forward. The light guide guides light that is incident through the first incident portion from front to back within the light guide. The stepped portion is a plurality of generally triangular prisms formed continuous in an extension direction, and has, in a cross section that follows an extension axis of the light guide and is parallel to a lamp optical axis, a long first projection surface that extends in the extension direction and a short second projection surface that forms an apex angle with the first projection surface.

Disclosed is an illuminating device which, as a light source for a backlight device, mixes the colors of light rays of three prime colors radiated by light emitting diodes to emit white light. The illuminating device includes a first light source (22R) radiating light rays of the first prime color, a second light source (22G) radiating light rays of the second prime color, a third light source (22B) radiating light rays of the third prime color, optical units (23R), (23G) and (23B) which refract divergent light rays contained in the light rays of the first prime color, emitted by the first light source (22R), the light rays of the second prime color, emitted by the second light source (22G) and in the light rays of the third prime color, emitted by the third light source (22B), to form collimated light rays, and triangular prisms (24) and (25) or a dichroic prism (26) mixing the light rays of the first, second and third prime colors, emitted by these optical units, by selective transmission and reflection, based on optical properties of the light rays of the respective prime colors.

The invention is hollow structural members, a rail system based thereon and method of manufacturing such hollow structural members. Embodiments of the structural members may be hollow triangular prism-shaped with a cross-section that is triangular, isosceles, hexagonal or otherwise. Embodiments of rail systems based on hollow structural members are also disclosed. Embodiments of the rail systems disclosed herein may also include reaction assemblies for local dissipation of stresses due to thermal expansion of track materials.

A portable terminal is provided. The portable terminal includes first, second and third housings. The second housing is rotatably engaged with one portion of the first housing. The third housing has one end engaged to linearly move closely beneath the rear surface of the second housing and the other end rotatably engaged with the other portion of the first housing. The third housing is folded onto the first housing, interposed between the first housing and the second housing, and when the second housing and the third housing rotate away from the first housing, the first, second and third housings form a triangular prism.

To improve the use efficiency of materials and provide a technique of fabricating a display device by a simple process. The method includes the steps of providing a mask on a conductive layer, forming an insulating film over the conductive layer provided with the mask, removing the mask to form an insulating layer having an opening; and forming a conductive film in the opening so as to be in contact with the exposed conductive layer, whereby the conductive layer and the conductive film can be electrically connected through the insulating layer. The shape of the opening reflects the shape of the mask. A mask having a columnar shape (e.g., a prism, a cylinder, or a triangular prism), a needle shape, or the like can be used.

The invention is hollow structural members, a rail system based thereon and method of manufacturing such hollow structural members. Embodiments of the structural members may be hollow triangular prism-shaped with a cross-section that is triangular, isosceles, hexagonal or otherwise. Embodiments of rail systems based on hollow structural members are also disclosed. Embodiments of the rail systems disclosed herein may also include reaction assemblies for local dissipation of stresses due to thermal expansion of track materials.

A multi-colored illumination system comprising a beam combiner. The beam combiner comprises two triangular prisms and a filter for transmitting a first light and reflecting a second light, each light having a different wavelength. The beam combiner combines the transmitted first light and the reflected light to provide a combined beam. The six surfaces of each of the triangular prism of the beam combiner is polished, thereby combining the lights without increasing etendue of the multi-colored illumination system.

An infinity display device with autostereoscopic capability having one or more high lumen light sources 6, a transmissive spatial light modulator (SLM) 7, light collimating optics and a rectilinear light guide. Once the light has passed through the SLM 7 an objective 2 converges the image encoded rays toward a point 43 representing the entrance pupil 5 of said light guide. A second lens 1 then collimates the rays in one plane (Tangential) while a lenticular array 13 is used for collimating rays in the second plane (Sagittal). Next, a first surface mirror 9 reflects all said rays toward a triangular prism 10, where they undergo colour separation before entering the light guide. The light guide may itself consist of two, parallel, first surface mirrors 3&4 one of which is partially transmissive. Finally a Fresnel screen 11 tilts the light toward the observer.

The tray comprises five independent parts which with the suitable construction and attachment to each other define the base (1), side walls (2) and end pieces (3), with the part corresponding to the latter provided with extreme extensions provided in each case with the folding line which gives rise to sectors (8), (9), (10), (11) and (12) which fold so that they superimpose on each other in an enveloping manner, forming triangular-prism shaped reinforcements at the corners, which reinforcements are provided, on either side of the corner and in correspondence with the upper edge of the corners, with ridges (15) complementary of slits (5) of the bottom of the tray, in order to stack the trays on each other. Said reinforcements which are part of end pieces (3) are formed before the parts reach the assembly station of the tray itself, which is meant to contain fruit and similar products.

This is directed to a case for securing and protecting an electronic device. The case can include a cover connected to a pouch by a hinge such that the cover can be overlaid over a device interface (e.g., a device display). The case can be constructed by layering and combining several types of materials, including for example materials having resistant outer surfaces, materials limiting the deformation of the case, materials providing a soft surface to be placed in contact with the device, and rigid materials for defining a structure of the case. In some embodiments, the case can include a tab that allows a user to fold open the cover of the case to form a triangular prism. The prism can be placed on any of its surfaces such that the device can be oriented towards a user at particular angles (e.g., a typing-specific orientation and a media playback orientation).

The invention provides a backlight device capable of irradiating in a front direction and in a left-right direction and a penetrating display device. A first light source (2) is disposed at an end side of a first light guiding plate (1), and a first prism sheet (3) is disposed at a light outgoing side of the first light guiding plate (1) with a manner that the surface opposite to the first light guiding plate (1) is provided as a triangular prism row. A second light source (4) is disposed at the side of the first light guiding plate (1) opposite to the first prism sheet (3) separated by a vision field angle adjusting membrane. Light emitting by the second light source (4) is controlled by the vision field membrane (5), so that angle of light emitting from the second light source (4) distributes narrowly, and directionality is provided in a normal direction on an exit surface of the first prism sheet (3).

The present invention provides a LCD panel with an isosceles triangular cross-section having a base angle of 50 to 55 degrees, and an incident angle equal to 10 to 24 degrees. Several triangular prisms are installed downwardly on a prism sheet by using the base angle as a vertex angle for controlling the light to be travel in a parallel direction, and incident in a direction perpendicular to an oblique surface of a smaller surface of the prism. The oblique surface of a larger surface of the prism reflects the incident light completely and projects the light perpendicular to the bottom of the prism. An optical system provides a backlight for a liquid crystal display apparatus and an anisotropic diffuser installed at an orthogonal direction of a prism has a diffusion function such that the light can be diffused by the LCD panel and the two orthogonally installed polarizers.

The invention discloses an unfolding mechanism of a flexible solar wing for a space station. The quality limitation of rigid solar cell arrays becomes a prominent problem. The unfolding mechanism comprises a bottom storage box, a storage barrel body, a storage barrel lid, an extension arm unfolding mechanism, a top storage box, a triangular prism extension arm, an airfoil and an airfoil tensioning mechanism, wherein a bottom tripod of the triangular prism extension arm is fixedly connected with a boss in the storage barrel body, and the top tripod is fixedly connected with the barrel lid; the top storage box is fixedly connected with the storage barrel lid, and the bottom storage box is fixedly connected with the storage barrel body; the extension arm unfolding mechanism is fixed at the bottom of the storage barrel body and controls an extension arm to be unfolded at the constant speed; the airfoil tensioning mechanism is fixed in the top storage box, guarantees tension to a solar wing during unfolding, tensions the solar wing after unfolding and keeps certain rigidity. The solar wing is small in mass, the airfoil and the extension arm occupy small size after being folded, and the extension arm can be reliably locked after being unfolded.

When an ultraviolet pasteurizer is used in a room free of a person, left and right light shield doors are opened to expose ultraviolet lamps outwardly. When an operation switch on a control panel is then turned on, an operation start timer is actuated, and the ultraviolet lamps are then energized to sterilize surrounding surfaces after elapse of 5 minutes. When the ultraviolet pasteurizer is used in a room occupied by a person, the left and right light shield doors are closed to direct the ultraviolet lamps inwardly until all light shield doors are brought into a substantially triangular prism. When the operation switch on the control panel is then turned on, the ultraviolet lamps and a fan are energized to draw external air from an air inlet. The drawn air passes through an inner radiation chamber defined inwardly of the light shield doors that have been combined into the substantially triangular prism. The air is sterilized by ultraviolet radiation emitted from the ultraviolet lamps and discharged from an air outlet.

The invention provides a ventilated moistureproof switch cabinet comprising a cabinet body, a base and a top cover, wherein the cabinet body is in a cuboid structure; the base is in a quadrangular frustum pyramid; the top cover is in a triangular prism structure; the cabinet body is arranged on the top of the base; the top cover is positioned on the top of the cabinet body; a hydraulic jacking device is arranged between the top cover and the cabinet body; a plurality of ventilation holes are formed in the top of the cabinet body and are distributed along a rectangular array; a double-opening door is formed in the front end of the cabinet body; two cooling fans are arranged on the left side surface of the cabinet body and are distributed in an up-down manner; a ventilation and cooling mechanism is arranged on the right side surface of the cabinet body; a control system is arranged in the cabinet body; a dust prevention filtering net is positioned at the inner side of the ventilation and cooling mechanism on the right side surface of the cabinet body; a plurality of cooling holes are formed between the two cooling fans on the left side surface of the cabinet body. The ventilated moistureproof switch cabinet is good in cooling and moistureproof effects, reliable to work, long in service life and capable of achieving automatic cooling and moistureproof effects.