Abstract: Disclosed is an engine piston structure including an outer peripheral portion (6) formed along an outer shape of a piston (1), and having a predetermined thickness, a pair of piston pin supporters (7) having peripheral walls (7b) having a predetermined thickness, and couplers (8) each coupling the pair of the piston pin supporters (7) to the outer peripheral portion (6). The outer peripheral portion (6) and the peripheral walls (7b) of the piston pin supporters (7) are solid. Each of the coupler (8) is porous. The outer peripheral portion (6), the piston pin supporters (7), and the couplers (8) are made of a metal material and are integrally formed together.

Abstract: A piston ring for a piston of an internal combustion engine may include a body composed of a ferrous material. The body may have an upper portion, a lower portion opposed to the upper portion, an internal portion configured to face towards a piston groove and an external portion opposed to the internal portion. An upper chamfer may be disposed between the upper portion and the external portion. A lower chamfer may be disposed between the lower portion and the external portion. The upper portion, the lower portion and the internal portion may each have a nitrided layer. The external portion, the upper chamfer and the lower chamfer may include at least one ion plated coating layer. The nitrided portion in at least a superficial layer may have a hardness of 700 HV or less.

Abstract: A piston ring in which carbon films with film qualities optimized to be adapted to required performance are formed on an outer circumferential sliding surface and top and bottom surfaces thereof with good productivity is provided, and a high-performance engine which employs the piston ring is also provided. In the piston ring, a carbon film is formed on an outer circumferential sliding surface and top and bottom surfaces. The carbon film contains a stacking of at least two types of carbon film layers with different film qualities, and a thickness ratio of the two types of carbon film layers is different between the outer circumferential sliding surface and the top and bottom surfaces.

Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.

Abstract: An improved multi-layer gasket assembly is provided. The gasket assembly includes a plurality of metal gasket layers which have at least one set of axially aligned openings. The plurality of layers includes at least two functional layers, at least one distance layer and at least one stopper layer. Each of the functional layers has at least one embossment bead that is spaced radially from the openings, and the distance and stopper layers are sandwiched between the functional layers. At least one of the stopper and the distance layer has a polymeric coating applied to at least a portion of an exterior surface thereof, and the stopper and distance layers are laser welded together through the polymeric coating.

Abstract: Dual sealing assemblies for mating and isolating a wire chamber from an electronics chamber within an electrical device enclosure is disclosed. The dual sealing assemblies include a dual chamber housing, wherein the dual chamber housing includes an electronics chamber and a wire chamber, and wherein the dual chamber housing isolates the electronics chamber from the wire chamber. The electrical device enclosure includes an electronics chamber cover mateable with the dual chamber housing for enclosing the electronics chamber; and, a wire chamber cover mateable with the dual chamber housing for enclosing the wire chamber. The wire chamber includes a compressible stubbed gasket having at least one locating stub corresponding to a receptacle in the dual chamber housing for positioning and holding the gasket within the top section during assembly.

Abstract: It is an object of the present invention to provide a seal ring which has small oil leak and low torque generation performance for improving fuel consumption in a favorable balance as originally intended by the present invention. A seal ring (1) is mounted on an annular groove formed on one member consisting of either a housing having a shaft hole or a rotary shaft inserted into the shaft hole, contacts a surface of other member consisting of either the housing or the rotary shaft, and slidably contacts a side wall surface of the annular groove at a non-sealed fluid side thereof. V-shaped concave portions (3) which do not contact the side wall surface of the annular groove are formed on at least one portion of an end of an inner diameter side of a side surface (2) of the seal ring (1).

Abstract: A seal ring (100) makes contact with a low-pressure-side (L) side wall surface of an annular groove (510) and slides against an inner circumferential surface of a shaft hole of a housing (600) through which a shaft (500) is inserted. The seal ring includes a pair of recessed portions (130) extending in a circumferential direction on an outer surface, wherein a distance between a side surface on one side of a protruding portion (120) that is disposed between the pair of recessed portions (130) and a side surface on another side of the seal ring (100), and a distance between a side surface on another side of the protruding portion (120) and a side surface on one side of the seal ring (100) are set to be shorter than a distance between an inner circumferential surface of the seal ring and an outer circumferential surface of the protruding portion (120).

Abstract: An anti-extrusion ring including a ring body having a cross sectional shape, a radial contact surface making up a part of the cross sectional shape of the ring body the radial contact surface being configured to preferentially load a radial edge portion of the radial contact surface when the anti-extrusion ring is loaded, an axial contact surface making up a part of the cross sectional shape, the axial contact surface being configured to preferentially load an axial edge portion of the axial contact surface when the anti-extrusion ring is loaded, and an element load surface positioned between the radial edge portion and the axial edge portion and method for creating a seal.

Abstract: A protective ring for a sealing arrangement of a bearing bushing of a journal cross assembly. The protective ring has an annular sleeve segment, which is concentric to a longitudinal axis, an annular seat segment which extends radially inward at a rear axial end of the sleeve segment, and at least one protrusion, which protrudes radially inward at a front axial end region of the sleeve segment. The protective ring also has a plurality of webs, which are distributed over the circumference and which protrude axially from the seat segment and are arranged inside the sleeve segment.

Abstract: A proportional valve is provided wherein the valve has an actuating element, a compressed-air connection, a working connection, and an air-removal connection. The valve also has three valve elements arranged one after the other and each can be moved in an axial direction. A first valve element is actuated by the actuating element, a second valve element is actuated by the first valve element, and a third valve element is actuated by the second valve element. In a base position, the valve elements are spaced apart, and, within the valve, a first sealing seat effective between the first valve element and the second valve element and a second sealing seat effective between the third valve element and the housing are arranged such that by varying the position of the first valve element, different switching states can be set.

Abstract: An intake manifold with an internal check valve that operates in coordination with a Positive Crankcase Valve has a check valve retainer that is mounted within the manifold and contacts the check valve to maintains the check valve in position and avoid dislodgement.

Abstract: Guide vane check valve assemblies and poppets for guide vane check valve assemblies are disclosed. A guide vane poppet includes an elongate central core configured to form a fluid seal with a valve body of the check valve assembly. The guide vane poppet additionally includes an elongate outer skirt and at least one guide vane radially extending between the elongate central core and the elongate outer skirt. A check valve assembly includes a valve body with a central cavity, an inlet to the central cavity, an outlet from the central cavity, and a spring seat, and further includes a spring and a poppet. The spring is oriented to press against the poppet and to urge a poppet-side sealing surface of the poppet into sealing engagement with a body-side sealing surface of the valve body.

Abstract: A pressure relief valve assembly includes a rupture disc that is shaped to only be inserted into a particular rupture disc cavity in the correct way. The rupture disc includes a cylindrical rupture disc stem and a radially protruding upper lip. A relief valve body in the pressure relief assembly includes an internal radial shoulder at the entrance of the rupture disc that is narrower than the protruding upper lip of the rupture disc but that is wider than the rupture disc stem. The shoulder allows only the rupture disc stem to be inserted into the rupture disc cavity, not the protruding upper lip. Optionally, the relief valve body is marked with some indicia to indicating the direction of inserting the rupture disc stem and/or a shrapnel catcher for trapping shrapnel of the rupture disc upon rupturing.

Abstract: An attachment structure for an actuator-specific solenoid valve and an actuator-quipped valve. The attachment structure can be easily applied to or released from any actuator and a solenoid valve, and the solenoid valve can be easily attached to and removed from any position in a side-surface circumferential direction without impairing compactability of the actuator. The attachment structure for an actuator-specific solenoid valve includes a base body provided on a lower part of a cylindrical actuator and an attachment member removably attachable externally from a main body of the actuator, the attachment member having a fixing part formed as being extended at a position close to a side surface of the main body of the actuator and a solenoid valve for fluid control attached to the fixing part, and the attachment member fixing the solenoid valve being provided rotatably about a side surface of the main body of the actuator.

Abstract: Disclosed herein are a refrigeration cycle device and three-way flow rate control valve. In a refrigeration cycle device including a compressor, first and second coolers configured to cool first and second storage compartments at least, respectively, and a mixer configured to mix refrigerants that have passed through the first and second coolers, a refrigerant flow path is switched so that refrigerants of first and second flow rates are circulated to the first and second coolers, respectively, while the first and second storage compartments are being cooled, and a refrigerant flow path is switched so that a refrigerant of a specific flow rate, which is smaller than a first flow rate but is not zero, is circulated to the first cooler after cooling of the first storage compartment is completed.

Abstract: A valve device for liquids, especially for liquid plastic constituents of single- or multiple-constituent plastic mixtures, includes a valve housing with a liquid inlet and a metering valve, which has a discharge opening that can be closed by a closure element, a pressure control device acting on the liquid in the liquid inlet and comprising a control membrane which acts on the closure element. A shut-off diaphragm separates the pressure control device from the liquid inlet, and the pressure control device comprises a fluid-tight control chamber which is at least partially arranged in the valve housing, for storing a substantially incompressible fluid. A pressure generating device allows the control membrane to be subjected to pressure by the incompressible fluid arranged in the control chamber.

Abstract: The invention is directed to an indicator (22) of the opening and/or closing status of a device controlling the flow of a fluid, such as a tap or a pressure reducer for compressed gas, comprising a sleeve-shaped support (24) to rotatably engage with a protruding portion (18) of a body of the device and from which an actuating spindle (20) extends along a longitudinal axis of said device; an indicator sleeve (26) axially sliding along the support (24); a rotor (28) to be fixed to the spindle (20) and comprising at its periphery a least one track (32) with a curved profile; and at least one track follower (30) extending radially from the indicator sleeve (26) through a longitudinal slot (242) in the support (24) and engaging with the at least one track (32).

Abstract: A cable hanger assembly includes: a mounting substrate, the mounting substrate including a plurality of holes configured to receive clips; and a plurality of clips, each of the clips configured to receive a cable and mount in one of the plurality of holes of the mounting substrate.

Abstract: An packing has an annular shape. The packing includes: a plurality of first protruding portions that protrude in a direction of enlarging a diameter from an outer peripheral surface of the annular shape to be continuous along a circumference and are arranged in parallel in an axial direction; a plurality of second protruding portions that protrude in a direction of reducing a diameter from an inner peripheral surface of the annular shape to be continuous along a circumference and are arranged in parallel in the axial direction with a parallel width wider than a parallel width with which the first protruding portions are arranged; and axially-protruding portions that are provided positions to sandwich the first protruding portion and the second protruding portion from both sides in the axial direction and protrude in the axial direction from both ends in the axial direction of the first protruding portion.

Abstract: A separation duct for encompassing an elongate member. The duct includes longitudinal internal spacers extend longitudinally in a direction of a longitudinal axis of the duct. A longitudinal plane for each spacer is substantially parallel to the longitudinal plane of the other spacers. The spacers support the elongate member and resist slippage of the duct relative to the elongate member. The duct may be used to provide separation and protection for elongate members of a range of outside dimensions.

Abstract: A multidirectional runner assembly for positioning a carrier pipe within a surrounding casing pipe. Each multidirectional runner assembly has at least one ball transfer assembly at least partially protruding from the runner assembly, in order to contact an inner surface of a surrounding casing pipe. The ball transfer assemblies reduce static and/or kinetic friction forces during installation of a carrier pipe within the central bore of a casing pipe, permit multidirectional orientation of the runners within the casing pipe, and provide greater load support.

Abstract: An electrically isolating duct-connecting block for connecting two ducts, the duct-connecting block including a rigid, generally rectangular duct-like structure having upper and lower walls and side walls that match a cross-sectional size of a tie duct, the structure being made of an electrically nonconductive material. The block also includes a plurality of threaded fasteners embedded within the structure. Also disclosed is an electrically isolating nozzle-mounting block for mounting a nozzle to a tie duct, the nozzle-mounting block comprising a rigid flange-like structure having peripheral mounting holes and a central circular passage for conveying air to the nozzle, the structure being made of an electrically nonconductive material. The block also includes a plurality of threaded fasteners partially embedded within the structure. The blocks may be made of ultrahigh molecular weight polyethylene or any electrically and mechanically equivalent material.

Abstract: A system for connecting a first tube (1) and a second tube, the system comprising a clamping collar (10) suitable for being tightened around the abutted ends of the two tubes, and a washer (28) secured to the clamping collar by securing means. The washer (28) presents a blocking element (44) configured to co-operate with a corresponding positioning member (48) of the first tube (1) so as to block the washer (28) against turning relative to the first tube (1).

Abstract: A duct coupler assembly includes a female duct coupler, where the female duct coupler is coupled to a first duct segment. The female duct coupler includes a female duct coupler body having an inner surface having an inner diameter and a bayonet slot formed therein. The duct coupler assembly further includes a male duct coupler. The male duct coupler is coupled to a second duct segment. The male duct coupler includes a male duct coupler body having an outer surface having an outer diameter, where the outer diameter is smaller than the inner diameter of the inner surface of the female duct coupler body. The male duct coupler has a bayonet post extending from an outer surface of the male duct coupler body, and the male duct coupler body is positioned within the female duct coupler body such that the bayonet post is positioned within the bayonet slot wherein the male duct coupler is coupled with the female duct coupler.

Abstract: A swivel joint for supplying and discharging various types of fluid between the top and bottom of a rotating platform includes an outer cylinder, an intermediate cylinder, and an inner cylinder that are arranged concentrically around a central axis. The intermediate cylinder can freely rotate with respect to the outer cylinder and the inner cylinder, and a hydraulic fluid flow channel is provided between the outer cylinder and the intermediate cylinder. A hot water flow channel between the lower portion of the inner cylinder and the intermediate cylinder includes an inner annular groove formed on the inner circumferential face of the intermediate cylinder. An air flow channel between the upper portion of the inner cylinder and the intermediate cylinder includes outer annular grooves formed on the outer surface of the inner cylinder.

Abstract: This transfer device includes at least one body defining at least partially a transfer conduit having a first orifice and a second orifice, and one heating member arranged at least partially in the body so as to heat the at least one transfer conduit. The first orifice and the second orifice are offset i) on the one hand, along a first direction, and ii) on the other hand, along a second direction, the second direction being perpendicular to the first direction.

Abstract: A pipe transporter traction wheel suitable for mounting on a pipe transporter travelable along an interior surface of a pipe may include a tractor portion configured to be attached to a pipe transporter, the tractor portion having a tractor surface configured to contact an interior surface of a pipe when the pipe transporter is driven in the pipe. The tractor portion may include a harder granular material and a softer matrix material embedding the granular material. The wheel may include a hub and/or a mounting interface. A kit may be provided including one or two adapters and a wheel.

Abstract: A removable pipe insulation system comprising one or more components, each component comprising insulation in a waterproof covering with at least one opening for air to exit the covering during use. The insulation in the covering may be surrounded by an inside skin with a plurality of holes formed through hot micro perforation. The inside skin may be surrounded by an outside cover, which may be edged in elastic binding and which may attach to itself by hook and loop fastener. The component may be wrapped around a pipe element and secured to provide insulation to the pipe element while protecting the insulation from moisture and protecting the pipe element from corrosion under insulation.

Abstract: A mounting apparatus for mounting a display or other unit and providing assisted motion when adjusting the height of the display is included in an electronic device. The mounting apparatus includes first frame, pushing member, and slidable connecting unit. The connecting unit includes a second frame and a rotatable pivot pin corresponding to the pushing member. When the connecting unit is moved along a predetermined adjusting direction, the first elastic member restores, and the rotating pivot pin deforms the second elastic member. The connecting unit stops at a position, itself adjustable, where respective restoring forces of the first elastic member and the second elastic member are balanced.

Abstract: A stand and a television apparatus capable of reducing limitations in design with respect to a base section are provided. A stand used for holding a display apparatus is provided. The stand includes a base section and a support section configured to rotate with respect to the base section and hold the display apparatus. The support section includes a drive unit configured to rotate a display screen of the display apparatus, and the drive unit is provided behind a back side of the display screen of the display apparatus. Preferably, the drive unit includes an electric motor and the display screen of the display apparatus is rotated by driving the electric motor.

Abstract: A monitor stand with a support portion supporting a monitor; a base contacting a placing plane; and a support pillar connecting the support portion and the base. The support pillar includes a plurality of support pillar members provided to overlap one another and the plurality of support pillar members being configured to be slidable one another. The support portion is provided in a first support pillar member which is one of the plurality of the support pillar members. The support pillar includes an interlocking portion configured to extend and shorten the support pillar by sliding the plurality of the support pillar members one another.

Abstract: A hanger element for one or more receiving bracket apertures that receives a hanging item. The hanger element includes a load bearing, concave shaped flange that attaches to the one or more receiving bracket aperture. A trailing concave shaped, curved hanging structure extends from the load bearing, concave shaped flange.

Abstract: An accessory hub joins accessories such as towel bars and robe hooks to a wall. In order to attach the accessory to the wall, a collet is fastened to the wall. The accessory hub may be joined to the collet with a spring-loaded button extending from the collet that is inserted into a receiver in the accessory hub. A first cleat portion on the collet mates with a second cleat portion on the accessory hub further securing the accessory hub to the collet. The accessory may then be attached to the accessory hub. The accessory hub may be detached from the collet without damaging the wall by depressing the button into the collet and disengaging the first and second cleat portions.

Abstract: A anchor is disclosed for suspending objects below a metal deck after concrete setting. The assembly includes an anchor body having a threaded opening, a sleeve mounted to the anchor body and defining a sleeve opening. The opening extends away from the anchor body. The sleeve also has a flexible portion that elastically flexes upon insertion of the sleeve through a hole in a metal deck. The sleeve is narrower than the width of the flexible portion. The anchor also includes a support defining a supporting channel through which the anchor body extends and that is configured to permit sliding movement, but restrict tilting movement, of the support relative to the anchor body. Also included is a spring for biasing the support along the anchor body towards the sleeve so that opposite sides of a metal deck are clamped between the support and the flexible portion of the sleeve.

Abstract: A harness may be configured to carry a piece of equipment and be worn by a wearer. The harness may comprise, for example, a central mounting plate, an equipment support member configured to support the piece of equipment, one or more vertical support members, and a belt. The equipment support member, the vertical support members, and the belt may be fixedly or removably attached to the central mounting plate. In some instances, an equipment bag may be removably attached to a portion of the harness. The equipment bag may weigh about 25 pounds, and the harness may be configured to be worn for approximately 12 hours at a time. The harness may be configured to transfer the weight of the piece of equipment from the shoulders and chest to the hips and lower back of the wearer.

Abstract: A gas supply system—includes a compressor unit, an accumulator unit, a pre-cooling system and a housing. In the gas supply system, the compressor unit is vertically arranged and the pre-cooling system is arranged above the accumulator unit in the housing. The compressor unit and the accumulator unit are covered by one rectangular parallelepiped housing.

Abstract: A system may automatically control a pipeline heating system to maintain a desired temperature and/or to provide flow assurance of process fluid along a pipeline. The system may identify the occurrence and location of the solidification of a given process fluid or the melting of the given process fluid by monitoring temperatures along the pipeline and identifying from the monitored temperatures the occurrence and location of a latent heat signature associated with the solidification or melting of the given process fluid. The system may determine a distribution of solidified process fluid along the pipeline. The system may determine the percentage of a given section of pipeline that is filled with solid and/or liquid process fluid on a meter-by-meter basis. The system may perform automated re-melt operations to resolve plugs of solidified process fluid that may occur in the pipeline.

Abstract: A light fixture includes a fixture housing. In some examples, an optic that includes silicone and is at least 5 inches in diameter is coupled to the fixture housing, and the light fixture is compliant with standard UL-844. In various examples, a top cap assembly is coupled to the fixture housing natively or as a retrofit kit. The top cap assembly includes a top cap and an interface ring, and allows for the light fixture to be attached to an existing top cap.

Abstract: A lighting device includes a translucent shell, a core stem, a base and a light bar module. The light bar module is composed of a plurality of light bars. The core stem extends upwardly from the base. The light bar module is composed of a plurality of light bars. The present invention also provides a method of manufacturing a lighting device including: making a light bar module, making a core stem, hanging the light bar module to the core stem, installing the bulb shell, and installing the driving piece and the lamp cap. The lighting device helps to obtain a better optical effect, and makes the light bar module get a better heat dissipation condition.

Abstract: In one embodiment, an LED lamp has a generally bulb shape. The LEDs are low power types and are encapsulated in thin, narrow, flexible strips. The LEDs are connected in series in the strips to drop a desired voltage. The strips are affixed to the outer surface of a bulb form to provide structure to the lamp. The strips are connected in parallel to a power supply, which may be housed in the lamp. Since many low power LEDs are used and are spread out over a large surface area, there is no need for a large metal heat sink. Further, the light emission is similar to that of an incandescent bulb. In other embodiment, there is no bulb form and the strips are bendable to have a variety of shapes. In another embodiment, a light sheet is bent to provide 360 degrees of light emission. Many other embodiments are described.

Abstract: In one embodiment, an LED lamp has a generally bulb shape. The LEDs are low power types and are encapsulated in thin, narrow, flexible strips. The LEDs are connected in series in the strips to drop a desired voltage. The strips are affixed to the outer surface of a bulb form to provide structure to the lamp. The strips are connected in parallel to a power supply, which may be housed in the lamp. Since many low power LEDs are used and are spread out over a large surface area, there is no need for a large metal heat sink. Further, the light emission is similar to that of an incandescent bulb. In other embodiment, there is no bulb form and the strips are bendable to have a variety of shapes. In another embodiment, a light sheet is bent to provide 360 degrees of light emission. Many other embodiments are described.

Abstract: An end cap for a retrofit LED lamp includes a transparent tube. An end cap is mounted to an end of the transparent tube. A pair of pins electrically and mechanically connects the LED lamp to a tube holder. The pair of pins extends through the end cap. A protective cap sits over the pair of pins thereby protecting the pair of pins from being touched by a user.

Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.

Abstract: The invention involves an LED tube lamp, which comprises a lamp tube, which includes a light transmissive portion, a reinforcing portion and an end cap. The LED tube lamp further includes an LED light assembly, which includes an LED light source and an LED light strip. The light transmissive portion is fixedly connected to the reinforcing portion. The LED light strip abuts against the reinforcing portion, which holds the LED light assembly in place. The LED light source is thermally and electrically connected to the LED light strip, which is in turn thermally connected to the reinforcing portion. The end cap is attached to an end of the lamp tube. A ratio of a cross-sectional area of the reinforcing portion to a cross-sectional area of the lamp tube is from 1:3 to 1:30.

Abstract: An LED lamp includes a shell, a holder, LED strings and a circuit board. The shell includes a top strip and two lateral strips each of which includes a curved section extending from the top strip, a hemi-circular section extending from the curved section, and a straight section extending from the hemi-circular section and including a reflective face. The holder is inserted in the shell and formed with a middle strip and two lateral strips each of which includes an upper section extending above the middle strip and a lower section extending below the middle strip. The lower section of each lateral strip of the holder is inserted in a groove defined by the hemi-circular section of a corresponding lateral strip of the shell. The LED strings are connected to the holder. The circuit board is connected to the holder.

Abstract: A retrofit assembly has a pan and a light emitting diode (LED) light source. The pan has a base extending along a longitudinal axis. The base is defined by a plurality of segments, including a seat, first and second legs, a first foot, a second foot, and retaining walls. The seat extends in a first plane. The first and second legs angle laterally and vertically away from opposite sides of the seat. The first foot extends away from the first leg within a second plane offset from and parallel to the first plane. The second foot extends away from the second leg within a third plane offset from and parallel to the first plane. The retaining walls extend vertically away from each of the first and second feet toward the first plane. The LED light source supports a plurality of LEDs coupled to the base.

Abstract: A light source is realized in a wall portion and a base portion forming a flexible structure, the wall portion having a plurality of inward facing LEDs, a bottom edge of the wall portion being adjacent to an edge of the wide portion. The resulting well is subsequently filled with a material to form an optical cavity, the height of the resultant optical cavity being matching a top edge of the wall portion. The top surface of the optical cavity is spin coated with a thin layer of quantum dots which serve to shift a wavelength of light emitted from the LEDs. Finally, a protective layer is applied to fix and protect the thin layer of quantum dots. Thus, a light source is realized which can reliably provide light at a specific wavelength defined by the interaction between the LEDs and quantum dots.

Abstract: An LED light source module includes a LED board, an optical reflector, a water-proof cover and a lamp pole. The optical reflector furnished above the LED board has a plurality of optical reflecting surfaces that are corresponding to those LED light sources making them irradiate upward. The waterproof cover, being in bowl shape, has its open end which is connected to the LED board. The optical reflector is furnished between the waterproof cover and the LED board. The lamp pole, being in hollow shape, has a power supply furnished therein. Both ends of the lamp pole are connected to the LED board and the power supply socket respectively.

Abstract: This luminous flux control member has: a plane of incidence having a first incidence plane and a second incidence plane; an emission plane; and a second concavity. The luminous flux control member satisfies the expression h1<h2+d×cot(?1+?2), where h1 is the space between the apex of the second concavity and a second imaginary line orthogonal to the center axis and that passes through the aperture edge portion, h2 is the space between the second imaginary line and the incidence position of light on the second incidence plane, d is the distance between the incidence position and the apex in the direction orthogonal to the center axis, ?1 is the angle of refraction of light in the incidence position, and ?2 is the angle of the tangent line at the incidence position in relation to the second imaginary line.