Abstract: An ink jet printer has a carriage equipped with a recording head. The carriage is disposed downstream in a feeding direction of a recording medium. The carriage has an optical sensor for measuring dirt on a supply roller. When the supply roller is dirty, a cleaning operation is started to rotate the supply roller as being pressed onto a separation pad. The dirt on the supply roller is measured with the optical sensor, and the cleaning operation lasts until the dirt is removed from the supply roller.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects a liquid onto a liquid ejection surface of an ejection target member; a scanning unit which scans the liquid ejecting head relative to the ejection target member; and a driving force transmission mechanism which transmits driving force of a rotary driving force source to the scanning unit through a belt, wherein a liquid absorbing material which absorbs and retains mists of a liquid floating in an inner space of the liquid ejecting apparatus is disposed on the belt.

Abstract: A print assembly (14) for a wide format pagewidth inkjet printer (10) includes an elongate carrier (187) that is mountable on a support structure (12) of the printer and is positioned an operative distance from a platen (106) of the printer (10). A number of printhead chips (186) are provided in a number and configuration such that the printhead chips define a printing zone (120) between the carrier (187) and the platen (106), the printing zone (120) having a length of at least 36 inches (914 mm). Each printhead chip (186) is of the type that incorporates a plurality of nozzle arrangements (210) and being in the form of a micro electromechanical system to achieve the ejection of ink from the nozzle arrangement (210). Control circuitry (190) is positioned on the carrier (187) and is operatively connected to the printhead chips (186) to control operation of the printhead chips (186).

Abstract: A printhead assembly includes a molded ink manifold, a plurality of printhead integrated circuits, and an adhesive film sandwiched between the ink manifold and the printhead integrated circuits. A manifold bonding surface of the molded ink manifold includes a polymer coating. The polymer coating plugs fissures resulting from a molding process used to mold the ink manifold.

Abstract: An imaging method is disclosed for realizing full color printing using an ink head configured to discharge black ink and a plurality of color inks. The imaging method involves printing a monochrome image portion by printing a plurality of first rasters using black ink and an arbitrary number of the color inks, and printing a second raster in between the first rasters using pseudo black ink that is realized by the remaining number of the color inks.

Abstract: An inkjet printhead includes a plurality of inkjet nozzles arranged in nozzle rows. Each nozzle row has a respective row of drive transistors. Drive transistors corresponding to one nozzle row are interleaved with drive transistors corresponding to an adjacent nozzle row.

Abstract: An inkjet printer with a printhead assembly and at least one replaceable ink cartridge, has an ink inlet valve on the printhead assembly for sealed connection to an outlet on the ink cartridge. The inlet valve has an inlet opening and a movable valve member biased into sealing engagement with the inlet opening. The outlet has a complementary member for depressing the movable valve member out of engagement with the inlet opening to open the valve. The inlet opening has an external formation about its periphery for sealing against the outlet before the complementary member depresses the movable valve member.

Abstract: A liquid droplet transport apparatus, which is provided on a nozzle plate of an ink-jet head, including a first electrode and a second electrode which are arranged on a lower surface of the nozzle plate, a driver which applies electric potentials to the first electrode and the second electrode respectively, a resistor layer which is arranged on the lower surface of the nozzle plate and which makes electric conduction to both of the first electrode and the second electrode, and an insulating layer which covers the first electrode, the second electrode, and the resistor layer. Accordingly, the liquid droplet transport apparatus is provided, which makes it possible to transport liquid droplets over a long distance, while simplifying the arrangement for the liquid droplet transport.

Abstract: An inkjet printhead is provided having a substrate defining inlet passages, sidewalls extending from the substrate, and a nozzle plate supported by the sidewalls and defining nozzle apertures. The nozzle plate, the sidewalls and the substrate define chambers. The printhead further has a heater element suspended within each of the chambers. The heater element has a planar structure parallel to the plane of the nozzle plate, and a spacing between the heater element and each sidewall of the chamber is between 0.1 microns and 20 microns. The heater element heats a liquid in the chamber to form a gas bubble. The gas bubble causes the ejection of a drop of the liquid through the nozzle aperture.

Abstract: A plurality of pressure generating chambers being formed of a silicon substrate, in which a crystal face orientation of a surface is a (110) plane, and each pressure generating chambers communicating with nozzles in parallel. Piezoelectric elements are formed on one surface of the substrate with a vibration plate interposed therebetween and include a lower electrode film, a piezoelectric layer, and an upper electrode film. In each of the pressure generating chambers, an end surface is formed of a first (111) plane perpendicular to the (110) plane and an end surface in a longitudinal direction is formed of a second (111) plane inclined by a predetermined angle with respect to the first (111) plane.

Abstract: A droplet discharging head comprises: a cavity substrate including a discharge chamber having a bottom wall serving as a vibration plate; and an electrode substrate including an individual electrode that faces the vibration plate with a gap and drives the vibration plate, and a driver integrated circuit (IC) that couples with the individual electrode and applies a voltage to the individual electrode. The cavity substrate includes a first opening that penetrates the cavity substrate and serves to house the driver IC, and an insulation film formed on a wall face of the first opening.

Abstract: A droplet ejecting apparatus, including: a head unit having a generally planar shape and including nozzles through which droplets are ejected, a holder holding the head unit, a reinforcing plate via which the head unit is held by the holder and which has an adhesion surface as at least a part of one of opposite surfaces thereof to which an adhesion surface of the head unit as at least a part of one of opposite surfaces thereof is adhered with an adhesive layer interposed between the adhesion surfaces, and an adhesion portion constituted by the adhesion surfaces and the adhesive layer, wherein the adhesion portion has a special region in which (a) first sections in each of which respective parts of the adhesion surfaces are opposed to each other with a part of the adhesive layer interposed therebetween and are adhered to each other and (b) second sections in each of which a part of the adhesion surface of one of the head unit and the reinforcing plate is opposed to a space and is not adhered to the adhesion su

Abstract: A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, a portion of the fluid control surface being moveable; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device by moving the moveable portion of the fluid control surface while the fluid is in contact with the fluid control surface such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device depending on the position of the moveable portion of the fluid control surface.

Abstract: A liquid ejection device ejects liquid droplets from a liquid ejection head. The liquid ejection device includes a liquid feeding member that feeds liquid to the liquid ejection head. The liquid feeding member is connected to a liquid ejection head to feed liquid to a common liquid chamber of the liquid ejection head, which liquid ejection head includes the common liquid chamber that supplies the liquid to plural individual liquid chambers communicating with plural nozzles that eject liquid droplets. The liquid feeding member includes a liquid circulation path through which the liquid circulates in a direction parallel to a direction in which the nozzles of the liquid ejection head are aligned.

Abstract: A valve assembly for a printhead cartridge includes an inlet valve for engaging with an outlet valve of an ink cartridge, the inlet valve having a conical structure defining an inlet opening at a top thereof; a valve seat defined on an inner surface of the conical structure; a depressible valve member provided within the inlet valve, the depressible valve member being normally biased against the valve seat to form therewith a fluidic seal; a skirt engaging portion defined on the inner surface of the conical structure above the valve seat, the skirt engaging portion for engaging a resilient skirt of the ink cartridge, and a pressure regulator provided below the depressible valve member, the pressure regulator having a diaphragm and a regulator inlet defined through the diaphragm, the regulator inlet for facilitating flow of ink from a valve-side of the diaphragm to a printhead-side.

Abstract: An ink cartridge loading device has: a casing, a door, and a guiding member. The casing has a chamber that accommodates an ink cartridge, and an opening communicated with the chamber for loading and unloading the ink cartridge therethrough. The door is provided at the casing and is movable between a first position and a second position. The door closes the opening at the first position. The door opens the opening at the second position. The guiding member is provided on the door and partially guides the ink cartridge from the chamber through the opening to outside when the door moves from the first position to the second position. The guiding member supports the ink cartridge together with the door when the door is at the second position. The guiding member guides the ink cartridge into the chamber when the door is closing.

Abstract: An ink tank provided with a supply port for supplying the ink contained therein and an electric contact for information transmission is smoothly and securely attached to an attachment section of a printing apparatus while achieving secure connection of an electric contact section at the same time. The ink tank is configured to be attachable to the attachment section by positioning a first engagement section at a first fitting section on the attachment section, and then by rotating the ink tank around the positioned first engagement section to lock a second engagement section to a second fitting section on the attachment section. The supply port and a positioning section for the contact are disposed on the bottom face of the ink tank so as to be on the respective two sides of the center line in the width direction of the ink tank therebetween.

Abstract: A seal part for an ink cartridge of an inkjet printer including a seal end for sealing an ink outlet port of the ink cartridge is provided. The seal part is column-shaped, a cylindrical cavity exists inside the seal part, and a diameter of the cavity is greater than a diameter of an ink supply needle of the printer. The seal end for sealing the ink output port of the ink cartridge is a cylindrical surface, or is a cylindrical surface having at least a circle of sealing flange. One end surface is a closed plane for preventing the ink from flowing out from the ink outlet port after the ink cartridge is detached from the printer, and the other end surface is a plane with an aperture in the center. The size of the aperture is adequate to seal the ink supply needle of the printer. The seal part seals the ink supply needle of the printer after the ink cartridge is installed in the printer, and prevents the ink leakage after the ink cartridge is detached from the printer.

Abstract: A liquid container includes a liquid chamber, a liquid supply chamber, a liquid introduction portion, and a particular liquid path. The liquid chamber is at least partially defined by at least one first wall, the liquid supply chamber is defined by at least one second wall having a first opening and a second opening formed therethrough, and the liquid introduction portion is defined by at least one third wall having a third opening formed therethrough. The particular liquid path extends from the third opening to the second opening, and the liquid introduction portion is configured to introduce fluid from an exterior of the liquid container to the liquid supply chamber via the particular liquid path. The particular liquid path is positioned externally from the liquid chamber.

Abstract: Systems, methods and structures for remanufacturing inkjet printer cartridges and inkjet printer print heads by removing the print head and adhesive holding the print head to a used inkjet printer cartridge, preparing the cartridge housing for a new print head by routing out the used print head and used adhesive to create a new mounting surface for new adhesive and a new print head, placing the adhesive and new print head on the new mounting surface, curing the adhesive and assembling a re-manufactured cartridge from the cartridge housing having a new print head positioned thereon.

Abstract: Liquid packs 34 provided with liquid leading members 42 are stored in a container case 31 that is constituted by fitting a case main body portion 32 and a lid case 33 in fitting portions 27 and 28, support portions 13, which positions the liquid leading members 42 so as to be opposed to liquid introducing members 71 attached to a cartridge inserting portion 13, are provided on a front surface 32a of the container case 31, the fitting portions 27 and 28 are arranged in a state in which the fitting portions 27 and 28 traverses the support portions 43, and space portions 29 and 30 having a gap larger than a gap formed in the fitting portions 27 and 28 are formed near the support portions 43 in the fitting portions 27 and 28. In this way, liquid flowing through the fitting portions 27 and 28 due to the capillarity is retained by the space portions 29 and 30 and never flows to the fitting portions 27 and 28 further extending from the space portions 29 and 30.

Abstract: An inkjet printer is provided. The printer comprises an inkjet printhead having a plurality of nozzles; at least one ink reservoir; and an ink supply system for supplying ink from the reservoir to the plurality of nozzles, the ink supply system comprising at least one pressure-dampening structure for dampening pressure fluctuations experienced by the nozzles. A distance between the pressure-dampening structures and at least one of the nozzles is less than 100 microns.

Abstract: An azo dye represented by formula (1): wherein, R11 represents a monovalent substituent, R12 represents a hydrogen atom or a monovalent substituent, Ar1 represents a specific heterocyclic group such as a group such as a group shown below, and X represents atoms necessary to form a ring; wherein, in the heterocyclic group, R61 to R63 each independently represents a hydrogen atom or a substituent.

Abstract: An ink set includes a red ink and a magenta ink. The red ink includes an effective amount of a red pigment having a predetermined red/green lambda cutoff, and the magenta ink includes an effective amount of a magenta pigment having a predetermined red/green lambda cutoff that is substantially similar to the predetermined lambda cutoff of the red pigment.

Abstract: The present invention provides an inkjet-recording ink set including multiple kinds of liquid including at least first and second liquids, wherein the first liquid contains a metal compound dissolved therein, and at least one of the multiple kinds of liquid contains a polymerizable compound. The invention also provides an inkjet-recording ink including at least a high-boiling-point organic solvent and a metal compound. The multiple kinds of liquid contain substantially no water and no low-boiling-point organic solvent.

Abstract: An ink set includes a combination of a first ink and a second ink, the first ink containing a self-dispersion pigment having at least one hydrophilic group directly or through another atomic group bonded to the surface of the pigment particle, and ammonium ions, the second ink containing a pigment, a polymer having an acid value of 160 mg KOH/g or less, and alkali metal ions, wherein the first ink further contains a compound (A) selected from nonionic surfactants and/or a compound (B) selected from the group consisting of polyethylene glycol with an average molecular weight of 600 to 2,000, ?,?-alkanediol having six carbon atoms, and an imidazolidinone derivative.

Abstract: A sealant for an ink jet head includes at least an oxetane compound having a biphenyl skeleton, an alicyclic epoxy compound, and a cationic polymerization initiator.

Abstract: A liquid ejecting apparatus includes: a supporting member that supports a target; a liquid ejecting head that ejects liquid to a liquid ejecting surface of the target supported by the supporting member; an air blowing device that blows air to the liquid ejecting surface of the target supported by the supporting member; and a guide member that has an opposed surface which is closely opposed to the liquid ejecting surface of the target supported by the supporting member and forms a gap for passing the air, which is blown by the air blowing device as laminar flow along the liquid ejecting surface, between the opposed surface and the liquid ejecting surface.

Abstract: A drying system for a printer is provided. The printer feeds a media web along a media path past a printhead to an exit region. The drying system has a first chamber positioned on one side of the media web between the printhead and exit region, a heating element within the first chamber, a fan positioned to direct air past the heating element to produce heated air, and a second chamber positioned on the other side of the media web opposite the first chamber, the second chamber having an opening through which the heated air from the first chamber passes. The opening is configured so that the printed media web extends from the media path as a loop to hang within the second chamber through the opening from opposite sides of the opening.

Abstract: An embodiment of the present invention provides a method of forming an image, which allows a high quality image to be formed on an intermediate transfer body including a surface layer with an ink-repelling property, and then to be transferred at a high transfer rate, and provides an image forming apparatus therefor. In the embodiment of the present invention, an ink image is formed on the intermediate transfer body, on the surface of which an oil and a water-soluble surfactant having surface tension in a range between more than 0 times and not more than 1.1 times of that of the oil are present. Subsequently, the formed ink image is transferred to a recording medium.

Abstract: An elongate hand-held printer device for printing on a medium when a user moves said device over the medium. The device includes an upper and a lower moulding configured to complementarily receive each other to define a housing, said housing defining an ink ejection slot along, and a printhead module housed in the housing. The module has a plurality of micro-electromechanical ejection devices for operatively ejecting ink via the ink ejection slot. The device also includes an ink supply cartridge housed in the housing, the cartridge for supplying the printhead module with ink, as well as an optical encoder wheel to facilitate regulation of a printing rate of the printhead module as the device is moved along the medium.

Abstract: The hearing device connector for eyeglasses is a connector that attaches a hearing aid device or a hearing device ear hanger to eyeglasses. The hearing aid device can have a flexible elastic sound tube from the transmitter and the sound tube passes through the connector and the stem of the eyeglasses securing the hearing aid directly to the eye glasses. Other types of hearing devices like telephone or radio sound tube can also be attached to the connector and eyeglasses. Eyeglass holders or attachments that fit around a person's head can also be used to fasten the connector to hearing aids.

Abstract: Contact lenses, such as hydrogel contact lenses, are described. The present contact lenses include a lens body that is the reaction product of a polymerizable composition. The polymerizable composition includes one or more monomers and a crosslinker that crosslinks the one or more monomers during polymerization. The polymerization of the one or more monomers occurs in the presence of a hydrophilic polymer that is present in the polymerizable composition, which comprises a polymer of 2-methacryloyloxyethyl phosphorylcholine. The present lenses are capable of releasing the hydrophilic polymer from the contact lens for prolonged periods of time and also have a reduced surface friction compared to similar lenses without the hydrophilic polymer. The present invention also relates to packaging systems for use with such lenses and methods of producing such lenses.

Abstract: An optical measurement apparatus comprises an optical system. The optical system comprises a source and an image capture device. The source is arranged to generate, when in use, a beam of electromagnetic radiation. Further, the optical system is arranged to direct the beam of electromagnetic radiation to a location to be measured. The optical measurement apparatus also comprises a feedback arrangement arranged to receive a reflected beam from the location to be measured and to provide feedback information in response to receipt of the reflected beam, the feedback information being indicative of degree of alignment of the location to be measured with the optical system.

Abstract: Disclosed is a multiperspective backprojection system for autostereoscopically displaying three-dimensional representations. Said backprojection system comprises a backprojection screen (2) and an image generation unit (1) which is disposed behind the backprojection screen (2) and is provided with a projector (7a to 7p) for each perspective of the three-dimensional representations. The rear face (3) of the backprojection screen (2) is fitted with a first lenticular screen plate (8) while the front face (4) thereof is equipped with a second lenticular screen plate (9). The inventive backprojection screen (2) encompasses a third lenticular screen plate (10) between the first lenticular screen plate (8) and the second lenticular screen plate (9). The three lenticular screen plates (8, 9, 10) are provided with parallel cylindrical lenses.

Abstract: An image projection and detection apparatus including an illumination system, a digital micro-mirror device (DMD), an optical detector, and a total internal reflection (TIR) unit is provided. The illumination system provides an illumination beam. The DMD is disposed in an optical path of the illumination beam, and includes a plurality of micro-mirror structures switched between an on-state and an off-state. When at least a part of the micro-mirror structures are in the on-state, they reflect the illumination beam into an image beam transmitted to an object side. When at least a part of micro-mirror structures are in the off-state, they reflect an object beam from the object side to the optical detector. The TIR unit includes a first TIR surface and a second TIR surface. The first TIR surface totally reflects the illumination beam to the DMD. The second TIR surface totally reflects the object beam to the optical detector.

Abstract: An illumination system adapted for a projection apparatus is provided. The illumination system comprises a cooling air guiding apparatus, a lamp, and a cooling fan. The cooling air guiding apparatus comprises an air intake device and an adjustment device, while the adjustment device comprises an air-flow adjustment element and an air-flow guiding element. The cooling fan generates a cooling air, which flows from the exterior through the air intake device into the air-flow adjustment element. The air-flow guiding element guides the cooling air in the air-flow adjustment element out of an air-flow adjustment hole towards a specific direction. Since the adjustment device may move relatively to the air intake device, the air-flow adjustment hole is adapted to move from the first position substantially aligned with the opening to the second position constituting a substantial displacement with respect to the opening. The cooling air can cool the lamp no matter what angle the projection apparatus is disposed.

Abstract: A rear projection display includes a projector for projecting light from a light source as an optical image, an exterior cabinet for enclosing the projector, a projection screen provided for the exterior cabinet on which the optical image is projected, and two or more optical sensors provided in a region where the optical image is projected from the projector other than an image display region.

Abstract: An image display apparatus is provided that allows a user to check image content even in a place where there is no projection screen. A projector that is one mode of the image display apparatus includes a casing, a projection aperture provided in the casing, and an internal projection mirror and a built-in screen that are provided in a casing. When the projector is being folded, laser light emitted from the projection aperture is reflected by the internal projection mirror. The reflected light is projected onto the built-in screen, whereby an image is displayed.

Abstract: A light-filtering module includes a light-source module, a dichroic mirror and a first image unit. The light-source module outputs a light beam. The dichroic mirror divides the light beam into a first colored light and a dual colored light. The first image unit provides the first colored light with image information. The light-filtering module includes a light-filtering unit and a driving unit. The light-filtering unit is located between the dichroic mirror and the first image unit is located at a light path of the first colored light. The driving unit includes a coupling element coupled to the light-filtering unit and a driving element utilized to drive the coupling element. The driving element drives the light-filtering unit, switching between a first status and a second status by the coupling element. A wide-wavelength spectrum and a narrow-wavelength spectrum are provided when the light-filtering unit is in the first and second statuses, respectively.

Abstract: A lighting unit includes: a light source unit 10 having a plurality of solid state light sources, a liquid crystal panel 30 displaying an image in accordance with an image input signal, a light source controlling unit 260 controlling, in accordance with the image input signal, a light amount of color component lights emitted from light source unit 10, and a speckle degree calculating unit 250 calculating a speckle degree that indicates a degree to which the color component lights generate a speckle displayed in accordance with the image input signal. The light source controlling unit 260 changes a control ratio between a first control mode and a second control mode, in accordance with the speckle degree acquired by the speckle degree calculating unit 250.

Abstract: A telescope has an entrance pupil region; a first concave mirror (M1) belonging to a first rotationally symmetric aspheric surface and reflecting light passing through the entrance pupil region; a second convex mirror (M2) belonging to a second rotationally symmetric aspheric surface and reflecting light reflected by the first mirror; a third convex mirror (M3) belonging to a third rotationally symmetric aspheric surface and reflecting light reflected by the second mirror; a fourth concave mirror belonging to a fourth rotationally symmetric aspheric surface and reflecting light reflected by the second mirror to an exit pupil. The first, second, third and fourth rotationally symmetric aspheric surfaces are centered on the symmetry axis of the third mirror. The first, second and fourth mirrors are centered along the first direction perpendicular to the optical axis and off-centered in a second direction perpendicular to the symmetry axis and to the first direction.

Abstract: A light fixture can be affixed within a wall and powered using the same cable along which data signals are transmitted. The LED lights in the light fixture are sufficiently bright to be used for illumination and are powered by a voltage derived from power delivered via the data cable. The light fixture may be used in conjunction with a building automation system. The light provided by the LED lights may be modified based on control signals received via the data cable. Modifications may include changes to the perceived brightness and/or color of the light.

Abstract: A direct backlight module includes a light optical plate, a plurality of point light sources, and a reflective member. The optical plate includes a light input surface and a light output surface opposite to the light output surface. The point light sources are positioned between the optical plate and the reflective member. The reflective element forms a plurality of curved reflective surfaces corresponding to the point light sources. Each curved reflective surface is a substantially spherical depression, and each point light source corresponds to a center of each spherical depression defined by one of the curved reflective surfaces.

Abstract: A light source system and a display apparatus comprising the light source system are provided. The display apparatus comprises the light source system and an imaging system. The light source system is configured to provide a light for imaging. The light source system comprises a mirror wheel and at least two light source modules, configured to provide at least two light beams respectively. These light beams are lit up according to a predetermined sequence. After being reflected by or directly passing through the mirror wheel, the light beams form a continuous light, traveling into the imaging system for imaging on a screen.

Abstract: Boom-type barrier (1) comprising a boom (2) mounted on a bracket or stand (3) for movement between open and barring positions. The boom (2) is designed as a tubular member transmissive of light and has therein a band (7) on which are mounted light emitting diodes (6) extending substantially the full length of the boom (2). The light emitting diodes (6) are controlled by an electronics module (12).

Abstract: The invention relates to a halogen incandescent lamp for motor vehicle headlamps with two incandescent filaments (21, 22), which are arranged within a lamp vessel (10), wherein a first incandescent filament (21) is designed for operation with a higher electrical power than the second incandescent filament (22), wherein the incandescent filaments (21, 22) are constructed in such a way that their dimensions and/or their geometry are in each case matched to an operating voltage of at least 20 volts, and at least the second incandescent filament (22) is an incandescent filament in the form of a single coil. Preferably, both incandescent filaments (21, 22) are in the form of incandescent filaments with a single coil, wherein the first incandescent filament (21) is used, for example, for producing the upper beam or lower beam and the second incandescent filament (22) is used for producing the daytime driving light or foglight.

Abstract: An LED-based lighting system includes a printed circuit board (“PCB”) having conductors on a front-side thereof, one or more LEDs mounted with the conductors, and a structural element. The PCB is mounted with the conductors near to the structural element so that heat dissipation from the LEDs is primarily through the conductors and the structural element. A method of dissipating heat generated by an LED-based lighting system includes configuring a PCB with conductors on a front-side of the PCB, such that when one or more LEDs mounted to the conductors generates heat, the heat dissipates from the one or more LEDs to the conductors. The method also includes integrating a structural element such that at least portions of the conductors face the structural element, and the heat dissipates from the conductors to the structural element.

Abstract: The invention concerns a device for producing isotropic ambient light, comprising: at least one extended light source including several punctual light sources spaced apart along two orthogonal axes; a waveguide for propagating by total reflections in a propagating direction perpendicular to the plane, the light beams produced by the punctual light sources; and means for scattering the light in the waveguide output. The dimension of the waveguide along said propagating direction is further sufficient to allow the light intensity curve which is detected, for each light source, in the waveguide output along one of the two axes and in a detecting range corresponding to the waveguide output section along said axis, to have a maximum value (Imax) and a minimum value (Imin) which satisfy the following criterion of quasi-uniformity (Imax-Imoy) ?0.3Imoy and (Imoy-Imin) ?0.3Imoy, Imoy being the average value of the light intensity levels detected along said axis.

Abstract: A digital picture display is disclosed. In a particular embodiment, the device includes a main body, a removable decorative faceplate adapted to be secured to a front portion of the main body, and an internal casing seated within the main body. An annular sidewall extends frontward from a periphery of the internal casing and a plurality of notches are disposed in the annular sidewall of the internal casing to receive a plurality of light emitting diodes. A liquid crystal display is housed within the internal casing, wherein the liquid crystal display is in electrical communication with electronic circuitry. The internal casing also includes a non-volatile memory that stores digital images to view on the liquid crystal display. In addition, the decorative faceplate includes at least one latch to removably secure the faceplate to the main body.