Abstract: An image projection system having a reflective imaging device and a projection device, characterized in that a quarter wave plate is provided between the reflective imaging device and projection lens in such manner as to suppress reflections from the projection lens from reaching the reflective imaging device while minimizing reflections from its own surface reaching the reflective imaging device. Preferably, the quarter wave plate is laminated to a polarizing beamsplitter exit face or to an optional linear polarizer sheet, to eliminate an air interface.

Abstract: A projection arrangement for projecting an image onto a projection surface, said arrangement comprising a light source (26), a film stage (2), arranged following said light source, for holding a positive image recorded on a carrier medium, and projection optics (3) for projecting a illuminated positive image, is provided with a control unit (25), a light modulator (10) controllable by said control unit in order to generate an additional image on the basis of predetermined image data, said light modulator being followed by an optical device (11) for projecting the additional image onto the projection surface (34), and with a beam splitter (6) arranged between the light source (26) and the film stage (2) so as to split the light from the light source (26) into a first partial beam directed to the film stage (2) in order to illuminate the positive image and into a second partial beam which may be directed to the light modulator (10).

Abstract: The present invention provides a technique that reduces color non-uniformity in a color image projected and displayed by a projector. The projector that projects and displays the color image includes an illumination optical system, a color light separation optical system, first through third electro-optical devices, a color light synthesizing optical system, and a projection optical system. The projector generally has one or a plurality of light bundle adjustment optical systems provided in one or some of three optical paths, which respectively connect the color light separation optical system with the first through the third electro-optical devices. Each light bundle adjustment optical system regulates size of a light bundle of a selected color light.

Abstract: The present invention relates to an image projection system whereby a display position of a pointer on a projected image can be easily controlled from a location separated from the main control means. The system comprises a liquid crystal projector, a personal computer for controlling the liquid crystal projector to display a pointer on a projected image in accordance with an operation signal from a main operating section and a predetermined program, and a remote controller for the liquid crystal projector. The remote controller comprises a pointing device and a light emitting portion for wirelessly transmitting an operation signal. The liquid crystal projector comprises a light receiving portion for receiving wirelessly transmitted signals. The personal computer controls the liquid crystal projector to transfer the received signals to the personal computer and further controls the display position of the pointer according to the transferred pointing device operation signals.

Abstract: The present invention is a projection type projector apparatus which is provided with a light source portion, a light bulb and a cooler for cooling at least the light source portion, with a silencer which takes exhaust air from the cooler once to damp exhaust sound, and a mounting portion for attachably/detachably mounting the silencer to a projection type projector.

Abstract: The invention provides a projector capable of cooling a light-source lamp efficiently and suppressing noises as well. In a first cooling system, the base side of a light-source lamp, which reaches a high temperature, is intensively cooled by a first sirocco fan. An axial-flow exhaust fan is provided close to the light-source lamp so that cooling air is allowed to quickly flow while cooling the light-source lamp. Therefore, even when the first sirocco fan, in which the air pressure of cooling air is liable to be reduced, is used, heat generated in the light-source lamp can be smoothly radiated, thereby efficiently cooling the light-source lamp. Since the first sirocco fan is remarkably quiet as compared to an axial-flow fan, noises are suppressed to a low level.

Abstract: Projection display device which comprises a light source for generating a light beam, integrator means for converting the light beam into a uniform rectangular beam, modulator means for modulating the rectangular light beam with the information to be displayed, and projection means for projecting the modulated rectangular light beam on a display plane. The integrator means comprises a triangular prism and an integrator device positioned between the light source and the triangular prism. The triangular prism is arranged for total internal reflection on at least one or more of its non-folding planes or, for best optical performance, on all of its non-folding planes.

Abstract: Highly detailed image data from an input terminal is divided by an input image divider in accordance with projectors. The divided image data are subjected to compensation processing by an image compensator, using compensation data for the respective characteristics of the various types of output characteristics. The output characteristics are subjected to compensation processing using the compensation data for the various types of output characteristics stored in the compensation data memory unit. The image data for each projector subjected to compensation processing, after D/A conversion, are sent to respective projectors.

Abstract: An illumination optical system has a light source, an integrator for making the intensity distribution of the light from the light source even, and a relay optical system for imaging the light from the integrator on a plane conjugate with the exit surface of the integrator. The relay optical system includes a rear lens unit of which the refractive power is asymmetrical in one direction so that the plane on which the light is imaged is inclined relative to the optical axis of the relay optical system. This makes it possible to direct light to an inclined surface with an even intensity distribution and with minimum loss of the illumination light.

Abstract: A method of fabricating a display system includes bonding a silicon substrate to a second substrate with an insulating layer. The silicon substrate is thinned to form a thin film silicon-on-insulator (SOI) structure. A matrix display circuit is formed with the SOI structure. A light shield pattern is formed over regions of the matrix display circuit. A light source, the matrix display circuit and a magnifying lens are positioned within a display housing such that light from the light source is directed onto the display and an image on the display is magnified by the lens for viewing by a user.

Abstract: This invention relates to retroreflective sheeting which has an image, such as an image. More specifically, the image has varying appearance at different angles of view. The retroreflective sheeting has a layer of transparent microsphere lenses, a transparent polymeric spacing layer underlying, contacting, and conforming to the bottom of the lenses, the spacing and conformation of which is critical to the optimal performance of the retroreflective article, a reflective layer having a top surface in contact with the back surface of the spacing layer and a topcoat and/or cover sheet overlying and conforming to the top surfaces of the lenses and having a flat top surface or face. In another embodiment, the retroreflective sheeting includes a pressure sensitive adhesive underlying and in contact with the reflective layer. The retroreflective sheeting has an image whose proportions are determined by a non-conformity of the reflective and spacing layer to the bottom of the lenses.

Abstract: An attaching part of a reflecting mirror is fixed to a guardrail of a road. A solar cell device of a solar-powered light emitter accumulates electricity produce by sunlight of the daytime, and a light emitting diode emits light at nighttime. When a front panel is irradiated with light from a headlight of an automobile running at nighttime, the light is reflected off a diamond cut of a rear surface, in particular, then the light is reflected off the surface of an inner panel on which reflecting surface work is made, and the reflected light is irregularly reflected by the diamond cut surface, thereby functioning as a driving sign in combination with the emitted light from the light emitting diode. Dirt adhered to the front surface of the front panel peels off because of a self purification effect of titanium oxide on the front surface.

Abstract: The present invention provides a reflective marker such as is used to delineate the location of a road, driveway or parking area. A reflective marker according to the invention includes a support post and a head fastened to the support post. The head includes a top portion and a bottom portion that are spanned by a generally cylindrical shell portion, which is preferably multi-faceted. Means are disposed on the shell portion for reflecting incident light directed thereat over a 360° range. Preferably, the reflective means comprises reflective tape having a width of from about 1.5 to about 3.5 inches. In the presently most preferred embodiment of the invention, the head is constructed of a polymeric material, and the support post is constructed of fiberglass.

Abstract: A fixation device for fixing a mirror cover to a command set has at least three fixation sets uniformly spaced from one another and each including a flange disposable in an edge of an opening of the mirror cover for supporting a ring-shaped base of the command set, the flange having a cuneiform projection which is couplable in a groove of the ring-shaped base a stop projecting from the mirror cover and radially aligned with the flange at a spaced relationship to the latter, a seat defined by gutters in front faces of the flange and the stop and a hole provided in a region of the mirror cover that remains in a space between the flange and the stop, and a pin which is received under pressure in a seat and presses the cuneiform projection against the groove of the ring-shaped base.

Abstract: The invention relates to a light-emitting key with multiple independently-illuminated messages for fitting to an equipment front panel, in particular for aviation equipment, the key comprising a bearing rim and a hollow key body terminated by a front, drive face covered by a mask etched with messages to be illuminated, said key body being connected to said bearing rim by means of a peripheral ligament, said body, said ligament, and said rim being made as a single piece of flexible material. According to the invention, a slab of translucent material subdivided into blocks by at least one opaque partition extending substantially perpendicularly to the front face is received inside the key body so as to extend as far as the front, drive face of the key.

Abstract: An illustration illuminator has a leg arrangement and a frame connected to the leg arrangement and extending upwardly and at a slant rearwardly away from the leg arrangement. A support surface is arranged at the front side of the frame for supporting an illustration to be illuminated. A light assembly is connected to the frame remote from the leg arrangement for illuminating the support surface. The light assembly has lamps emitting light rays and further has a front end with an outlet via which the light rays exit and impinge on the support surface. The light assembly has a reflector arranged relative to the lamps such that the light rays emitted by the lamps pass through the outlet only after having been reflected at least once on the reflector.

Abstract: A lamp assembly for general illumination and/or ornamentation has a base with a support member bearing both a lamp-bulb receiving socket and a lamp shade. The lamp shade, or other ornamental element of the lamp assembly is formed at least in part of an electroluminescent material and, in the disclosed form, the inner surface of the shade is reflective. The lamp assembly, accordingly, includes two sources of illumination, namely the electroluminescent material and a lamp-bulb received in the bulb-receiving socket. A conventional line cord is provided to connect the lamp to any ordinary source of electrical power, and a four-position electrical switch coupled to the line cord permits a user to direct power selectively to the lamp socket, or to the electroluminescent shade, or to both simultaneously. In its fourth position, all electrical power is cut-off so that the lamp is not illuminated.

Abstract: A motorcyclist garment with illuminated traffic signals for providing better and more visible rear lighting for motorcyclists. The motorcyclist garment with illuminated traffic signals includes a garment having a back side, a neck opening, and arm openings; and further includes a light-emitting assembly including light-emitting members being disposed in the back side of said garment, and also including wires and a power cord being connected to the light-emitting members, and further including a connector plug being attached to an end of the power cord and being adapted to plug into a power jack of a motorcycle.

Abstract: A modular lighting system for illuminating products supported upon various vertically arranged shelves of a display unit includes a housing attached to a first shelf, with the housing including at least one transparent panel which permits an internal illumination source to light products supported upon at least one of the first shelf, a shelf arranged directly above the first shelf and a shelf disposed directly below the first shelf. Most preferably, the light illuminating from the housing is directed so as to effectively, entirely illuminate product support surfaces associated with both the first shelf and the shelf directly below such that the display of products supported anywhere from the front to the back of these shelves is enhanced. This front-to-back lighting function can be achieved in various ways, such as by employing direct, reflective and refractive lighting techniques.

Abstract: Vehicle light apparatus for removably mounting on an elongate member of a vehicle such as a stroller or bicycle has its own battery power supply mounted on a rectangular web of pliant material that has opposed long sides. The long sides are provided with fasteners so that the web may be wrapped around an elongate member of a vehicle and the two long sides then joined together to hold the apparatus in place. The battery may be rechargeable, and a built-in battery charger may be incorporated into the apparatus. Light emitters are powered by the battery and positioned to emit light from opposed sides of the member. The lights may be light emitting diodes (LEDs), electroluminescent strips (EL), or incandescent bulbs. The lights may be flashing sequencing for safety and decoration.

Abstract: A less costly bulb-shaped fluorescent lamp with improved assembly efficiency is provided which prevents the impairment of product quality due to the change in color of a holder or the slipping off of a fluorescent tube from the holder decreased in resin strength. The fluorescent lamp includes a set of fluorescent tubes, filament coils disposed at both ends of each fluorescent tube, a starter circuit for activating the fluorescent tubes, a holder for retaining the fluorescent tubes, and a case containing the starter circuit. The holder includes holes for receiving the fluorescent tubes, and a recess defined in a central portion of the holder and extended in the opposite direction of the fluorescent tubes.

Abstract: A flat reflector lamp for fluorescent bulbs is described. The lamp has a self-supporting reflector with an enclosed hollow portion for mounting an electronic ballast. Electrical sockets on a pair of lamp end plates function as mounts for fluorescent lamps. A circuit board mounted on guide strips within the enclosed hollow portion of the lamp has spring contacts in electrical contact with at least one of the electrical sockets.

Abstract: A light emitting diode module for attaching to a surface of a sign, which includes a mounting plate having top and bottom surfaces, a plurality of light emitting diodes mounted to the top surface of the mounting plate, a housing having top and bottom surfaces, a first electrical connector attached to the bottom surface of the mounting plate and electrically connected to the plurality of light emitting diodes, a second electrical connector attached to the top surface of the housing for engaging with the first electrical connector, a third electrical connector attached to the housing and electrically connected to the second electrical connector, and a power supply for providing a voltage to the third electrical connector. As the bottom surface of the mounting plate is placed on the top surface of the housing, the first electrical connector engages with the second electrical connector for electrically connecting the plurality of light emitting diodes to the third electrical connector.

Abstract: The present invention is an illumination system for use near a wall or surface for creating one or more images of light thereon. An important characteristic of the invention is the ability to produce coordinated images by passing radiant light through an at least one convergent refracting lens. The lens may have a decorative shape, and the surface of convergent refracting lens may be embellished with etched, drawn, painted or otherwise applied designs for projecting said images, or a prism for producing decorative rainbow spectra effects. The invention is capable of being used in common household lighting fixtures.

Abstract: A luminaire capable of providing up-lighting when suspended from above, or mounted from below, or wall lighting when mounted as a sconce, having a longitudinally extended tapered hollow shell body which is open in the direction of intended illumination, a lamp mounting assembly, a fixture mounting assembly, and a louver assembly which is positioned between a lamp mounted in the fixture and the surface to be illuminated. The louver assembly is an integral unit having a supporting member which carries longitudinally spaced light-transmissive louvers which project from the body opening toward the illuminated surface. Each louver is formed of a partial disk which may be arcuate (e.g. semi-circular or semi-elliptical) or polygonal, and may have a beveled peripheral surface.

Abstract: A method of making a casing of an image sensor is provided. The method includes the steps of preparing the casing, and applying a static electricity preventive to the casing. The casing is formed with a light passage configured to conduct light emitted from a light source. The static electricity preventive is applied to the inner surfaces of the casing defining the light passage. While the application of the preventive is performed, flashes formed at the light passage are removed.

Abstract: A method for restricting removal of a electrical lamp in a mounting bracket is provided. The mounting bracket including a first opening, a second opening and a mounting face. The method includes providing an electrical lamp including a lamp length and a plurality of lamp diameters and inserting the electrical lamp at least partly though the mounting bracket. The method further includes positioning the mounting bracket first opening adjacent a first surface such that the first surface is in close proximity to the first opening and securing the mounting face to a structure.

Abstract: A motor vehicle lamp assembly having a lamp bulb for emitting light and a bulb housing having a light transmissive portion for transmitting light from the lamp bulb to an illumination zone. The housing is coated with a coating material which covers a selected region of the light transmissive portion of the housing. The coating material is electrically energized to alter an amount of light transmitted from the bulb to the illumination zone. A drive circuit electrically coupled to the coating material energizes the coating material to control a light output from the lamp assembly.

Abstract: A buckle (10) for a vehicle seat belt system (12) comprises a latch mechanism (26) for connection with a tongue assembly (14) of the seat belt system. The latch mechanism (26) has a latched condition and a released condition. The buckle (10) also comprises a manually engageable pushbutton (40) connected with the latch mechanism (26). The pushbutton (40) is movable between a first position in which the latch mechanism is in the latched condition and a second position in which the latch mechanism is in the released condition. The buckle (10) contains an illumination mechanism (46) comprising an electroluminescent panel (50) which may or may not be movable with the pushbutton when the pushbutton moves between the first and second positions.

Abstract: A projector mounting system for use in a vehicle including a mounting housing that is capable of being attached to the ceiling of a vehicle, an illumination device that is connected to the mounting housing, and a projector that is mounted to the mounting housing.

Abstract: A light support apparatus is provided for use on a windshield oriented at a windshield slope angle with respect to the horizontal and includes a bracket member which has a top bracket portion and a bottom bracket portion. A horizontal support member is connected to the top bracket portion at a bracket-to-support angle. A vertical support member is connected to the horizontal support member, and a windshield supported foot member is connected to the vertical support member at a foot-to-vertical support angle. The horizontal support member includes a fastener reception channel. Preferably, the bracket-to-support angle is substantially supplementary to the windshield slope angle, and the foot-to-vertical support angle is substantially complementary to the windshield slope angle. A light assembly is connected to the horizontal support member. The light support apparatus of the invention is especially useful on the windshield of a boat.

Abstract: A motor vehicle headlight has a reflector with two focal regions, a light source in one of these focal regions producing a pool of reflected light in the other focal region, and a lens which converts the pool of light into a beam projected on the road. The headlight includes means for displacing the light source with respect to the reflector.

Abstract: In a lighting system for motor vehicles, light from a HID or MPXL lamp is collected by a collector which surrounds the light source at least partly and is guided further to a separator of optical waveguide material, which separator forms a desired light beam via a specially shaped light outlet surface so as to obtain as high as possible a light output.

Abstract: In the conventional lighting equipment for vehicle using LED lamp, as the LED lamp irradiation angle is narrow, an optical irregularity making the luminescent surface spotted is generated, resulting in a feeling of wrongness of the viewer. Means to Solve the Problem. A LED lighting equipment 1 for vehicle of the present invention, comprising at least one light emitting unit 3 wherein an LED lamp 2 is disposed approximately at the focus of one hyperboloid, a reflection surface of hyperboloid 4 defined by the other hyperboloid comprising a transmission portion 4a disposed in an appropriate range near the optical axis is arranged in the LED lamp 2 optical axial direction, and a refection surface of paraboloid of revolution 5 having the approximate focus at the focus of said the other hyperboloid focus is arranged at the side of said LED lamp 2, allows to enlarge the irradiation angle at the reflection surface of hyperboloid 4, and to emit light in a larger area.

Abstract: The invention relates to a novel vibration proof lamp unit meant especially for demanding operating conditions. The invention relates also to a method for manufacturing the vibration proof lamp unit. The lamp unit embodiment according to the present invention can be utilized on vehicles, such as cars, busses, trucks, farm tractors, aeroplanes or on other mobile devices.

Abstract: Vehicle lamp housing assembly that uses a multiple-piece adhesive track to secure the components together. The assembly and seal can be formed in a single operation. The invention eliminates conventional fastening means such as welding, snaps, screws and nuts, as well as extra operations that would otherwise increase the cost of the finished product. In a preferred embodiment, the same adhesive that is used to seal the lens to the housing is also used for assembly of the components.

Abstract: An electric whisk is provided having an electric battery compartment (2) and a closure (40) for the compartment, with means (8) to ensure that the closure cannot be deployed to close the compartment without providing an electrical connection. In alternative aspects, the whisk includes a guard (20) to at least partially prevent liquid from entering the whisk housing (1) at the place at which the whisk axle (11) emerges from the housing. A method is also provided to electroplate the whisk housing whilst protecting the electric motor (10) from the electrolyte.

Abstract: An apparatus for sensing the temperature of a fluid being drawn from a well includes a pipe having a wall, a sensor mounted on the outer surface of the pipe wall, an insulator, and a housing attached to the pipe that encloses the sensor and the insulator. The fluid to be sensed is drawn from the well through the pipe. The thermal conductivity of the pipe wall is greater than that of the insulator.

Abstract: Self-standing bag, including a sack (1) of flexible material and a supporting structure for the sack (1). Said supporting structure for the sack (1) includes two stiffening members (4) of substantially rectangular shape, secured at opposite sides of the lateral wall of the sack (1) by means of at least two fastenings, one close to the bottom of the sack (1) and the other close to its top opening (2). A cover (7) consisting of a substantially tubular fabric member, preferably figured, is secured to the lateral wall of the sack (1) close to said top opening (2).

Abstract: A rolling guide device comprises: a track rail formed with a rolling member rolling surface extending along a longitudinal direction thereof; a movable rail formed with a loaded rolling member rolling surface extending along a longitudinal direction thereof so as to oppose to the rolling member rolling surface of the track rail; a track rail side rolling member circulation passage formed to the track rail so as to circulate the rolling members rolling between the track rail and the movable rail; a movable rail side rolling member circulation passage formed to the movable rail so as to circulate the rolling members rolling between the track rail and the movable rail; and a number of rolling members disposed and arranged in the track rail side rolling member circulation passage and the movable rail side rolling member circulation passage.

Abstract: A linear guide way structure. The structure utilizes spring strips to combine a sliding body assembly and end caps, instead of using screws or pins. The sliding body assembly and the end caps are combined together with an almost constant resilient force provided by the spring strips whose mechanical strength is greater than that of plastic material. The problem of exfoliation between two physically different materials such a metal and plastic never is avoided. Accordingly, the linear guide way is easy to fabricate, operate, and maintain with low cost.

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: The damper assembly includes a centering spring about a bearing for a rotating shaft. The centering spring is fixed to and spaced from a fixed component. One or more annular arrays of brush bristles project from the fixed component and have tips in engagement with the non-rotating, radially and orbitally movable centering spring. With the brush bristles engaging the centering spring, the vibrations and dynamic loadings of the shaft on the bearing and centering spring are damped.

Abstract: A bearing guided ferrofluid seal and seal carrier system that may be used with a bearing assembly with an outer annular ring surface. A seal carrier of the present invention has a carrier ferrofluid seal surface and a carrier bearing surface that includes a first carrier bearing surface and a second carrier bearing surface. A ferrofluid seal may be attached to the carrier ferrofluid seal surface and fixtured to the second carrier bearing surface. The second carrier bearing surface may be attached to the outer annular ring surface. In one preferred embodiment the first carrier bearing surface may be attached to the upper annular ring surface. In a separate preferred embodiment the ferrofluid seal may be attached to the carrier ferrofluid seal surface so that the seal inner diameter of the ferrofluid seal is fixtured to the second carrier bearing surface in order to minimize runout.

Abstract: Suspension thrust rolling bearing device of the type comprising a first ring 12, a second ring 13 made of thin sheet, a row of rolling bodies 14 arranged between the two rings, a cap 16 secured to the first ring and a plate 11 capable of forming a seat for a spring 10. The plate 11 comprises a means for securing it directly axially to the second ring 13 or to the cap 16.

Abstract: A simple optical fiber inner tube connector mainly includes a tubular body being divided into two receiving chambers by at least an annular rib in the tubular body. Each of the receiving chambers is provided around its inner wall surface with a spirally extended thread and at least an engaging tooth located between the annular rib and an inner end of the spiral thread. When two optical fiber inner tubes are to be connected to each other by means of the connector, they are separately screwed into the two receiving chambers so that the engaging teeth tightly engage into outer wall surfaces of the two optical fiber inner tubes for them to accurately align with each other and firmly locate in the connector. Waterstop sleeve members made of elastically deformable material may be put around outer wall surface of the tubular body near two ends thereof to fitly and tightly cover the joint of the connector and the optical fiber inner tubes and to align the inner tubes with the tubular body.

Abstract: The hybrid connector (1) is completed through first to third assembling steps. The first assembling step inserts sleeves (7, 7) into cylindrical holders (19, 19) to an intermediate insertion state thereof. The second assembling step presses optical element modules (8, 9) against the sleeves (7,7), which consistently further inserts the sleeves (7, 7) into the cylindrical holders (19,19) so that the sleeves (7, 7) are completely received in the cylindrical holders (19, 19). Whereby the second assembling step simultaneously completely assembles the sleeves (7, 7) and the optical element modules (8, 9) into the connector. This provides an effective assembling work thereof. The third assembling step causes a shield case (10) to hold the optical element modules (8, 9), while the shield case 10 engages with the cylindrical holders 19, 19.

Abstract: An optical wavelength multiplexer and/or demultiplexer is provided having mechanical strain relief. The mechanical strain relief is provided by mounting ears carried by a molded coupling module supporting the fiber optic cable receptacle. The mounting ears are engaged by a pair of mounting plates carried by a housing for the device. Loads applied to the fiber optic cable receptacle are transferred to the housing frame and do not adversely affect the optical pathway of the assembled device.

Abstract: A cold welding technique for securing a fiber optic cable (10) to a ferrule (26). The fiber optic cable (10) is inserted into a sleeve (12). The fiber cable and sleeve assembly is then slid into a sleeve bore (24) through one end of the ferrule (26) so that the fiber (14) extends out of an opposite end (40) of the ferrule (26). The sleeve (12) is then retracted from the ferrule (26). A cold electroplating process is performed so that a layer (50) of a suitable plating material is deposited over the end (40) of the ferrule (26) through which the fiber (14) extends so that the fiber cable (10) is held within the ferrule (26) and the ferrule opening is hermetically sealed. The sleeve (12) is then slid back into the ferrule (26) and is soldered to the ferrule to hold it in the desired location.

Abstract: An LD module having a spot-size conversion LD for emitting a beam of a small aperture angle, an optical fiber or a waveguide and a lens for converging the LD beam to the fiber or the waveguide.