Abstract: The disclosure relates to a planetary roller screw drive comprising a threaded spindle nut, a horizontal threaded spindle, a plurality of planetary rolling elements having a planetary rolling element profile, and at least two planetary guide rings. The threaded spindle is arranged concentrically in the planetary guide rings and the spindle nut. The planetary guide rings can be rotated relative to the threaded spindle and the planetary rolling elements are mounted so as to be rotatable about their associated planetary rolling element axis in the planetary guide rings and inside the spindle nut. The planetary rolling element profile of the planetary rolling elements meshes with the threaded spindle. The planetary guide rings are connected to a housing case for conjoint rotation, and the housing case has a housing case lateral surface on which a toothing is formed for coupling in a geared manner to with a continuous traction mechanism.

Abstract: Disclosed is a linear actuator, including a drive motor, a transmission assembly, a rotary screw, a transmission nut, a clutch device, a self-locking device and a hand-pull release assembly. The clutch device is arranged between the transmission assembly and the rotary screw. The self-locking device is configured to generate frictional resistance to the rotary screw when the rotary screw rotates reversely, and the self-locking device includes a release torsion spring. The hand-pull release assembly includes a first driving member connected with the clutch device and a second driving member connected with the self-locking device, and has an initial state and a fully released state. During the process from the initial state to the fully released state, the first driving member drives the clutch device to disconnect power, and the second driving member drives the release torsion spring to extend.

Abstract: Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission system includes a hydrostatic assembly and a mechanical assembly coupled in parallel to a first and second planetary gear sets. The transmission system further includes a plurality of clutches designed to shift between two drive ranges in a set of drive ranges that includes a reverse drive range and two forward drive ranges to adjust the input to output speed ratio of the transmission.

Abstract: Segmented sprocket systems and methods for installing the segmented sprocket systems for use in numerous different applications such as, but not limited to, industrial sprockets. The present invention may be a segmented sprocket system including two or more relatively thin sprockets (100) that are installed together on a common hub (200) such that the two or more sprockets form a composite sprocket having a width approximately equal to the sum of the width of the individual sprockets. A segmented sprocket system may include a hub; at least two sprockets having the same outer diameter and an interior opening having a diameter approximately equal to the outer diameter of the hub; wherein the at least two sprockets are positioned on the hub such that each sprocket abuts a neighboring sprocket, thus resulting in a composite sprocket structure.

Abstract: The invention relates to a gear wheel for a transmission, comprising: including: a rim on which a toothing with a plurality of teeth is provided; a support point; and a web via which the rim is connected to the support point; wherein, on a side of the rim opposite the toothing and next to the web, a periodic variation of the geometry is formed that is aligned with the teeth of the toothing.

Abstract: A three-row roller slewing bearing-gearbox integrated structure, including a three-row roller slewing bearing and a gearbox. The three-row roller slewing bearing includes an outer ring, a first inner ring, and a second inner ring. The first inner ring and the second inner ring are connected to each other. The outer ring is sleevedly provided outside the first inner ring and the second inner ring. The gearbox includes a housing, an inner ring gear, and a first-stage planet carrier. The inner ring gear is fixedly connected to the housing. The first-stage planet carrier is provided in the housing. The first-stage planet carrier is rotatable relative to the housing. The outer ring is connected to the inner ring gear, and the first inner ring is connected to the first-stage planet carrier.

Abstract: A lid component is arranged to face an electric oil pump. The lid component includes an accommodation groove that accommodates at least a part of the electric oil pump on a surface side from which a lid-side connector protrudes.

Abstract: A pump stage assembly for supplying lubricating oil, comprising: at least two pump suction stages and at least one pump pressure stage. The pump suction stages and the pump pressure stage are spaced apart from one another in a pump housing PG and have a common drive shaft. The pump suction stages are formed by a first assembly of at least three intermeshing external gearwheels and wherein the pump pressure stage is formed by a second assembly of two intermeshing external gearwheels. Here at least two respective tooth center points of the first external gearwheel assembly and the respective tooth center points of the second external gearwheel assembly are arranged in a common plane E-E which intersects the pump housing PG in a longitudinal direction.

Abstract: A gear portion of a power transmission device is connected to one side in an axial direction of a first shaft rotatable about a first axis extending along a horizontal direction. The first shaft is supported by a first bearing. The gear portion includes a second shaft rotatable about a second axis below the first axis. A lubricant is provided in a first bearing holding portion of the first bearing. A gear housing that houses the gear portion includes an oil passage below the first bearing. A first end of the oil passage is connected to the first bearing holding portion through the first bearing. A second end of the oil passage is connected to a second bearing holding portion of a second bearing that supports the second shaft through an opening below the first bearing.

Abstract: An epicyclic step-down gear for an electric parking brake, this step-down gear comprising a drive shaft, at least one step-down stage and a cylinder which forms a screw/nut system with an outer planet gear of this step-down gear. This step-down gear comprises at least one axial force transmission component which is positioned between a bearing ring of the drive shaft and the cylinder so as to transmit axial forces applied via either the bearing ring or the cylinder to either this bearing ring or this cylinder. Such an axial force transmission component prevents the drive shaft from buckling by defining an axial force transmission path which is radially eccentric.

Abstract: A planet carrier ring sun gear assembly for a transmission device with at least two planetary gears of a wheel hub drive for a vehicle is described. The planet carrier ring sun gear assembly may include a planet carrier ring of a first planetary gear. The planet carrier ring may be configured to support a plurality of planet gear wheels of the first planetary gear and a sun gear of a second planetary gear. The planet carrier ring and the sun gear may form a monolithic unit.

Abstract: A control apparatus includes a controller that switches a transmission mode of a transmission of a vehicle between an automatic shift mode and a temporary manual shift mode; and a storage unit storing maps each representing a relationship between a vehicle speed and an accelerator operation amount that are parameters for switching the transmission mode, and that are set for individual gradients of road on which the vehicle drives. The maps each include a cancellation region, a first maintenance region, and a second maintenance region, which are set to be different from each other according to the gradients. The controller includes a processor(s) and a memory(ies) coupled to the processor(s). The processor(s) executes a process including: selecting a map corresponding to a gradient of road on which the vehicle is driving; and switching the transmission mode based on the selected map, the vehicle speed and the accelerator operation amount.

Abstract: A vehicle with continuously variable transmission operational modes is provided. The vehicle includes a motor to provide engine torque; a driveline; a continuously variable transmission (CVT), an actuator, a memory and a controller. The CVT is configured to couple torque between the motor and the driveline. The actuator is in operational communication with the CVT to selectively set operating characteristics of the CVT. The memory stores operating instructions including operational mode. The controller is in communication with the memory and the actuator. The controller configured to control the actuator based on one or more of the operational modes.

Abstract: A transmission comprises a moving mechanism to generate axial force to move the one rotary member and releases the axial force according to generation of coasting torque, an urging mechanism to urge the one rotary member with force being poorer than the axial force being generated by the moving mechanism so that the meshing teeth mesh, the contact body of the urging mechanism arranged in a supporting hole formed on the torque transmission member in a radial direction, and an urging and converting part provided to receive the contact body being urged in the radial direction by the urging functional part and convert a direction of the urging to the axial direction to urge the axial movement of the one rotary member.

Abstract: A parking lock system for a motor vehicle transmission includes a latch pivotingly movable from a locking position engaged in a cavity of a locking wheel rotatably linked to an output of the transmission, to an unlocking position disengaged from the cavity. A carriage is mounted at the end of a rod and slides to a locking position. The carriage forces the pivoting of the latch in the locking, or the unlocking position. A first lever is connected to the rod, and pivots to push or pull the rod. A second lever pivots via an actuator. A spring positioned between the levers has a return force being less than the force to make the second lever pivot, such that the pivoting of the first lever leads to either: pivoting of the second lever and engagement of the latch when it is facing a cavity, or compression of the spring.

Abstract: An assembly actuates two fork shafts of a gearbox which includes two rotating actuators and a system for interlocking with a first lever which supports a drive finger of a first fork and a cam the profile of which comprises a notch for locking the first lever; a second lever which supports a drive finger of a second fork and a cam the profile of which comprises a second notch for locking the second lever; and a pivoting interlocking rocker which supports a locking pin that is able to interact with one or other of the two locking notches in order to angularly lock the associated lever when the other lever is actuated in order to engage a gear ratio.

Abstract: A piston-crankshaft connector for an internal combustion engine can comprise a main connecting rod connected with its big end bore to a crankpin and at least one auxiliary connecting rod connected to off-axial surfaces made on the crankpin. On the piston side, the at least one auxiliary connecting rod can be attached to an upper crankpin nested within the main connecting rod, where the crankpin carries off-centred piston pin bore. Such construction can modify a piston pin bore distance relative to a main journal central axis during their rotation, which can improve the internal combustion stroke-to-stroke performance. A compression ratio can additionally or alternatively be adjusted by hydraulics acting on an entire segmented eccentric ring relative position within connecting rod bearing space via crankpin oil channels.

Abstract: An apparatus for processing a substrate is disclosed and includes, in one embodiment, a twin chamber housing having two openings formed therethrough, a first pump interface member coaxially aligned with one of the two openings formed in the twin chamber housing, and a second pump interface member coaxially aligned with another of the two openings formed in the twin chamber housing, wherein each of the pump interface members include three channels that are concentric with a centerline of the two openings.

Abstract: A sliding component having an annular shape is disposed in a place where relative rotation is performed in a rotary machine, in which a plurality of dynamic pressure generating mechanisms are provided in a sliding surface of the sliding component, each including a deep groove portion that communicates with an outer diameter side, and at least one shallow groove portion that communicates with the deep groove portion and extends in a circumferential direction, and the deep groove portion is provided with a trap portion that suppresses a sealed liquid in the deep groove portion from leaking to a leakage side.

Abstract: Balanced plug assemblies and pressure regulators having balanced plug assemblies are described herein. A pressure regulator disclosed herein includes a device body defining a fluid passageway between an inlet and an outlet. The device body defines a channel between the fluid passageway and a pressure sense chamber. The pressure regulator includes a seat in the fluid passageway, a stem having a flange, and a plug coupled to the stem. The pressure regulator also includes a stem guide disposed in the channel of the device body. The flange of the stem disposed in a balance chamber of the stem guide and divides the balance chamber into a first balance chamber portion and a second balance chamber portion. The stem guide at least partially forms a balance passage that fluidly couples the pressure sense chamber and the second balance chamber portion.

Abstract: The present invention addresses to a device that allows the control of the gas pressure at the outlet of a fixed bed adsorption equipment operated at high pressures, by means of the actuation of a micrometric valve (6), wherein the valve must be located downstream of the equipment. The valve actuation takes place by means of a stepper motor (1), controlled by a microcontroller board (22), which connects to the valve shaft by means of a system of pulleys (2, 5) and belt (3). The present invention is applied in adsorption units, in which other gases are present, by altering the tuning parameters of the PID controller or even being used in a liquid medium or gas-liquid two-phase flow.

Abstract: A sub-surface safety valve (SSSV) advisory system is disclosed. The SSSV advisory system includes a memory and a computer processor connected to the memory and that generates at least one control signal to perform an open and close sequence for testing a SSSV in a well environment, measures, during the open and close sequence of the SSSV, an open and close sequence signature of the SSSV, compares the measured open and close sequence signature to a normal open and close sequence signature of the SSSV to generate a comparison result, and generates, based on the comparison result, an integrity measure of the SSSV.

Abstract: A refrigerant pipe that constitutes a refrigerant circuit of a refrigeration apparatus includes: a first pipe; and a second pipe. The first pipe includes: a first pipe body, made of stainless steel; and a first connection, made of a material different from stainless steel, disposed at an end of the first pipe body in a pipe axial direction of the first pipe body. The second pipe includes: a second pipe body, made of stainless steel; and a second connection, made of a material identical to the material of the first connection, disposed at an end of the second pipe body in a pipe axial direction of the second pipe body. The first connection is connected to the second connection.

Abstract: A method of installing a 3-piece pipe coupling to connect a first pipe element to a second pipe element includes the steps of bringing the 3-piece pipe coupling into engagement with a first connection groove located proximate a first pipe element end of the first pipe element and with a second connection groove located proximate a second pipe element end of the second pipe element, the 3-piece pipe coupling comprising three pieces; and tightening the 3-piece pipe coupling about the first and second pipe element ends with a fastener extending through a first fastener pad and through a second fastener pad formed at respective distal ends of two pieces of the three pieces comprising the 3-piece pipe coupling.

Abstract: An improved hose clamp is provided which incorporates a ratchet lever functionable to lock down and secure the clamp in place on a hose without need for use of screwdrivers or other implements. The ratchet lever presses forward a slider block which travels above a distal end of a collar and is affixed to a proximal end of the collar.

Abstract: A fluidic connection device (10) for a fluid circuit, in particular of a vehicle, this device comprising a first pipe (12), a tubular end-piece engaged in the first pipe (12), a first flange (16) mounted around the first pipe (12), a second flange (18) mounted around the end-piece, at least one element (20) for attaching the first and second flanges (16, 18) one against the other, and a non-return insert valve (100) mounted within the first pipe (12).

Abstract: Flange for a hose (2), which flange comprises: —an annular flange body (4) having a central hose opening (5); —an annular locking element (9) for locking the annular flange body (4) in a circumferential groove (3) of a hose (2), which annular locking element (9) is composed out of at least two generally arc shaped locking element parts (9), wherein the annular locking element (9) is concentrically arranged in the central hose opening (5) of the annular flange body (4); and —couplings (7, 8) for each of the at least two generally arc shaped locking element parts (9), wherein each coupling (7, 8) has a first coupling part (7) arranged on the annular flange body (4) and a second coupling part (8) arranged on the respective arc shaped locking element part (9), which first coupling part (7) couples to the second coupling part (8).

Abstract: Disclosed is a fitting (1) for use with corrugated tubing (2) having a series of peaks (3) and valleys (4). The fitting (1) comprises a nut (5) having a passage (6) therethrough for receiving the tubing (2) and at least one retainer (7) arranged in the nut (5), wherein the retainer (7) has a retainer sealing surface (8) for placement in a valley (4) of the corrugated tubing (2). The fitting (1) further comprises a body (9) having a pointy annular body sealing edge (10) arranged so that the apex (11) of the body sealing edge (10) is pressed against the retainer sealing surface (8) when the nut (5) and the body (9) are forced toward each other. A method for connecting corrugated tubing (2) to a fitting (1) comprising a nut (5), a retainer (7) and a body (9) and use of a fitting (1) is also disclosed.

Abstract: A hose support includes: a body defining at least one concave surface configured to receive a concrete slurry hose, the body including at least one support surface configured to rest on pavement; where the at least one concave surface is displaced from the at least one support surface to support the concrete slurry hose above the pavement; and where: the at least one concave surface is configured to slidably receive the concrete slurry hose; or the at least one support surface is configured to slidably rest on the pavement while the body receives the concrete slurry hose; or a combination thereof.

Abstract: A connector apparatus featuring a main pipe with first and second opposed ends. Each has a corresponding male-threaded fastening section for mating with the complimentary female-threaded fastening section on a respective conventional pipe-locking ring or collar. A valve-housing for supporting a one-way flow valve assembly interiorly, and a riser mounted on and supported by the valve housing for ultimate connection to the output or exhaust nozzle of a medical scavenger device.

Abstract: A connector includes a connecting body with a fluid passage at least part way therethrough, and a seal is provided with an outer portion of a fluid tube. A cartridge proximate to the connecting body has a hollow portion therethrough. A grab part has at least one tooth to retain the fluid tube and is between the cartridge and the seal. A demount part within the hollow portion moves the teeth to allow release of the fluid tube. A latch is located on one of the connecting body or a sleeve covering at least part of the cartridge or the connecting body. A mating catch is located on the other of the sleeve or the connecting body, and engagement of the latch with the catch connects the sleeve to the connecting body and helps restrain cartridge movement.

Abstract: Fluid coupling devices can be used to provide fluid passage connections in fluid systems. Some fluid coupling devices are configured for use in fluid systems for the purpose of providing a sterile connection by which fluid can be transferred in a sterile manner. Such a sterile connection can be useful for the delivery and/or processing of therapeutic agents, or ingredients thereof, and other purposes.

Abstract: What is disclosed is an improved irrigation-system-coupling device, with a length-adjustment feature, that is designed to provide a coupling between polymeric irrigation-system hosing/tubing and a water-supply valve, such as solenoid-operated control/supply valves commonly used in automated irrigation systems. The length-adjustment configuration allows for easy installation in the field without the need to splice additional lengths of hosing/tubing in situations where various environmental conditions and/or necessitated repairs to or removal of sections of hoses/tubing has caused an extra gap between a supply-valve manifold housing and the end of the existing hose/tubing.

Abstract: Disclosed is a spirally heating submarine pipeline including: a conduit which transports a high temperature high pressure fluid from a submarine oil well; and a heating unit disposed in a spiral structure inside based on an outer circumferential surface of the conduit. The heating unit includes an electric heating wire that is installed along the spiral structure to generate heat; a heat insulator that is installed in the form of fully surrounding the electric heating wire and preserves the generated heat; and a heat insulating cap for isolating the heat insulator from the conduit or the heat insulating layer and is provided so as to increase the temperature of the flow in the pipe to prevent the production of a pipe flow interfering material when the fluid is transported in the conduit.

Abstract: A profile includes: a sidewall, a lumen for a fluid path, and an end, the profile including a thermoset material, wherein the profile includes a sealed end without an external bonding material, wherein the sealed end withstands a seal integrity pressure test of at least 1 psi, such as at least 5 psi, such as at least 10 psi, such as at least 15 psi, or even at least 20 psi air pressure for about 30 minutes under dry and wet conditions.

Abstract: An appliance includes a metallic outer wrapper having sidewalls, a wrapper backwall and a machine wall. At least one metallic inner liner has liner walls and a liner backwall, wherein the metallic outer wrapper and the at least one metallic inner liner are coupled together at a trim breaker to define a structural cabinet having a hermetically sealed interior cavity defined between the metallic outer wrapper and the at least one metallic inner liner. The trim breaker defines a front face of the structural cabinet. At least one trim breaker conduit extends through the wrapper and liner backwalls wherein the trim breaker conduit defines a conduit through the structural cabinet, and wherein the structural cabinet is hermetically sealed at the trim breaker conduit.

Abstract: A devise for adjusting the orientation of a display on a support. The devise has a first portion with a non-circular interior opening, and a second portion with a non-circular exterior shaped to nest within the non-circular interior opening of the first portion and aligns a display support in a desired orientation.

Abstract: An apparatus for securely displaying a product includes a cradle assembly including a base plate and a plurality of plates slidably engaged with the base plate, each plate of the plurality of plates including an arm to engage a respective side of the product, and a post supporting the cradle assembly, the post including first and second sections, one of the first and second sections being fixedly connected to the base plate. The first section includes a projection, and the second section includes a guide in which the projection is disposed to control rotation of the first and second sections relative to one another and re-orient the cradle assembly.

Abstract: A stand for supporting a printing device, the stand comprising: a first leg and a second leg, the legs having upper ends for vertically supporting a printing device to horizontally span the legs above a supporting surface; a crossbar fixed to the first leg at a first crossbar fixation point and fixed to the second leg at a second crossbar fixation point; and a linkage connected between the first and the second leg, the linkage comprising a first link, a second link and a third link connected in series, wherein: the first link is connected to the first leg in use at a first leg connection point; the second link is connected to the second leg in use at a second leg connection point; and the third link is connected to the crossbar to pivot about a third linkage pivot point and to the first and second links at first and second linkage connection points on opposite sides of the third linkage pivot point.

Abstract: A device for estimating a temperature of a lubricant in a transmission that transmits power from a motor to a robot joint includes a thermometer and a processor. The processor includes hardware configured to: receive, as input from the motor, a current value of the motor and calculate, as output, a motor heat value based thereon; receive, as input from the motor and the transmission, a rotating speed of the motor and a frictional torque of the transmission, and calculate, as output, a frictional heat value in the transmission based on the rotating speed of the motor and at least one of the frictional torque of the transmission and at least one coefficient of friction of the transmission; and receive, as input from the thermometer, the room temperature, the frictional heat value, and the motor heat value and estimate, as output, the estimated temperature of the lubricant based thereon.

Abstract: The invention relates to a device for lubricating a dynamic instrument holder (300), characterized in that it comprises a disposable lubricating set including: a container (100) containing a pre-dosed quantity of lubricant, said quantity corresponding to the quantity required for the lubrication of a single dynamic instrument holder (300); and a tubular end piece (200) preformed with a communicating hollow core (230) and comprising two ends, the first end (210) of said end piece (200) attaching to an open end of said dynamic instrument holder (300) in such a way as to allow the flow of a lubricant to the dynamic instrument holder (300), and the container being connected to the second end (220). The invention also relates to a method for lubricating dynamic instrument holders. The invention is applicable to the lubrication of surgical tools such as dynamic instrument holders.

Abstract: A pressure vessel assembly includes a pressure element storing compressed gas and a shell enclosing the pressure element and capture the compressed gas that permeates from the pressure element. The pressure vessel assembly includes an end fitting extending into a cavity of the pressure element and from the pressure element through the shell. The end fitting includes a stem that extends out from the shell in one direction and into the cavity of the pressure element in an opposite direction and a cap that surrounds the pressure element and the stem at a location external to the pressure element. The pressure vessel assembly includes a retention component sustaining engagement of the end fitting with at least one of the pressure element or the shell below a predetermined pressure threshold.

Abstract: Some embodiments of the disclosure disclose a lighting apparatus, which includes an end cover, at least two light-emitting modules and a cylinder body which are sequentially disposed, and further includes a telescopic sleeve rod, wherein the light-emitting modules are disposed in a surrounding manner, one end of each of the at least two light-emitting modules is hinged to the end cover while the other end of the each of the at least two light-emitting modules is detachably connected to the cylinder body, the telescopic sleeve rod penetrates through an inner space formed by the at least two light-emitting modules in a surrounding manner, and one end of the telescopic sleeve rod is connected with the cylinder body while the other end of the telescopic sleeve rod is connected to the end cover.

Abstract: An LED base module includes an LED lighting base and a supporting base. The LED lighting base includes an insulation housing and multiple conductive terminals fixed in the insulation housing. Each of the conductive terminals includes a chip fixing portion electrically connected to the chip assembly and a pin portion exposed outside the insulation housing. The supporting base includes multiple conductive portions and one or more avoidance through-holes. Each of the conductive portions includes a first terminal portion and a second terminal portion which are respectively exposed at two opposite surfaces of the supporting base. The first terminal portion is electrically connected to the pin portion, and the second terminal portion is electrically connected to a conductive line. The avoidance through-hole is provided for avoidance of stamp-cutting of one of the conductive lines.

Abstract: In an embodiment, an automotive solid-state lamp includes a lamp body extending along a longitudinal reference axis between a proximal base portion and a distal front portion, wherein the lamp body includes a support member having first and second opposed sides, and wherein each one of the opposed sides of the support member has arranged thereon a first array of solid-state light sources having a shield optically coupled therewith and configured to provide, when energized, an automotive low-beam, a second array of solid-state light sources located between the base portion and the first array of solid-state light sources, the second array of solid-state light sources spaced from the first array of solid-state light sources and configured to provide, when energized, an automotive high-beam, wherein the second array of solid-state light sources includes a first single row of solid-state light sources extending longitudinally of the lamp body and a second single row of solid-state light sources.

Abstract: A headlamp includes a plurality of first light sources for projecting a high beam, a plurality of second light sources for projecting a low beam, a first light guide, and a second light guide. The first light guide has a plurality of light entry surfaces arranged side by side for receiving light emitted from the first light sources and a first light exit surface. The second light guide has a plurality of light entry surfaces arranged side by side for receiving light emitted from the second light sources and a second light exit surface. At least a first one of the light entry surfaces of either the first light guide or the second light guide has a greater width in the direction in which the light entry surfaces are arranged than at least a second one of the light entry surfaces.

Abstract: Illumination device for a motor vehicle headlight, wherein the illumination device comprises at least one light source and a projection lens system, which projection lens system is designed to project the light in the form of light distribution in front of the illumination device in a main emission direction (X), and wherein the projection lens system consists of the following: a first lens (100) having a first focal point, which first lens (100) is aspherical and made from precision glass by means of precision glass moulding, wherein the first lens has a convex exit surface and a concave entry surface to increase the light entry, wherein the first lens has a refractive index of n?1.

Abstract: A light member includes a housing having an outer surface and an inner surface, a portion of the outer surface includes a lens. A light source is mounted in the housing. The light source is directed toward the lens. A plurality of light manipulating elements is arranged in the housing between the light source and the lens. Each of the plurality of light manipulating elements includes a body having a first side surface and a second side surface. Each of the first side surface and the second side surface is a light manipulating surface.

Abstract: An entry step lighting system for a deployable aircraft stairway. The system includes steps that having integrated light sources that direct and provide illumination to the steps. Some light sources illuminate strip lenses which indicate proximity to the step edges. Light emitted by a second group of light sources is directed into an angled face established on a riser wall between each step. The light bounces off of each angled face to illuminate the step below.

Abstract: Photoluminescence generated by excitation light emitted from an excitation light source can be effectively utilized. A vehicle lamp according to the present invention includes a lamp housing and a lamp lens forming a lamp chamber, an excitation light source disposed in the lamp chamber and emitting excitation light, and a luminescence unit fixed to the lamp lens on a side thereof closer to the lamp chamber and generating photoluminescence by the excitation light emitted from the excitation light source. The lamp lens is a lens that transmits the photoluminescence generated in the luminescence unit and emits the photoluminescence outside the lamp chamber. As a result, the present invention enables effective use of the photoluminescence generated by the excitation light emitted from the excitation light source.