Patent Description:
The statements in this section merely provide background information related to the present disclosure and does not constitute prior art.

When installing recessed luminaires (<CIT>, <CIT>, <CIT>), maintaining its position easily and reliably is important. Luminaires use various types of torsion springs, screw clamping mechanisms, ball plungers, knife-edge sheet metal pieces, slide out tabs and torsion springs in slots that are used to hold the fixture tight against the surface into which it is mounted. Many of the mechanisms for securing the luminaire against the mounting plane may not over passage of time hold the luminaire flush against the mounting surface and sag in part, which is unsightly and objectionable to the market. Additionally, such mechanisms may interfere with component operation near the mounting position. In the instance of the present disclosure, a small hole is drilled in the mounting surface to accommodate the luminaire. It is desirable to make the hole as small as possible so that the flange of the trim piece around the luminaire is small and covers the hole. Many designers find a small design aesthetically pleasing so as not to call unnecessary attention to luminaires set against the mounting plane. The extra space around the hole may be referred to as a goof allowance. It is desirable to have the smallest amount of goof allowance possible to minimize the diameter of the luminaire. By providing a small retention mechanism, the goof allowance may be minimized. However, existing luminaire designs and technology usages may require larger holes and trim covers to be made which is unnecessary and unsightly to designers.

Another issue with the installation of luminaires is all mounting areas are not uniform in thickness. Many retention mechanisms do not allow or accommodate various ceiling or wall thicknesses. Additionally, many luminaires utilizing an LED lamp require power supplies driving the lamp to be installed remotely elsewhere in the building interior because the opening through which the luminaire assembly is received cannot be accessed following first install for replacement of the power supply (the driver of the LED) if it should fail and require replacement. This adds to installation cost and is not desirable to the designer specifying lighting for the building interior.

The redirection of light from a luminaire is also important in some applications. That is, instead of light distribution being sculpted to highlight features of interior furnishings or sculpture for example, it can be adjusted with concealed optics to zoom in or out of focus. Some recessed luminaires, for example, use gear drive mechanisms, multiple-bar kinematic chain mechanisms and jackscrews to make adjustments. Many of these mechanisms only allow adjustment in discrete increments.

Further, many adjustment mechanisms are high in cost because the components require high tolerances and thus are more expensive to manufacture.

Luminaires also emit light with a certain amount of beam spread from the optical axis. In many luminaires, the amount of light spread is fixed by the optics of the lens through which the light is directed. The adjustability of the light distribution from a luminaire is important in many designs. Allowing an end user to adjust the light distribution in a cost effective design is important.

In wall-wash applications, the introduction of hardware within the recessed luminaire can be configured to blanket a wall plane uniformly with light, for example to light artwork or wall murals. It may be desirable to wash the wall in light from the ceiling plane down to the wall evenly with minimal scalloping or shadowing effects. Commonly, a kick-reflector is used to direct the light extensively from the surface or the ceiling (or plane to which it is mounted) down the adjacent wall. However, when the kick reflector extends a significant distance from the plane on which it is mounted, the result is less aesthetically pleasing because it draws unwanted attention to the mounting plane.

Adjustability of the beam width and direction can also be important. Previous attempts for all of these features have proven either unreliable or not cost effective.

Another issue associated with luminaires is serviceability or component replaceability, applicable to LED and power supplies driving the LED's which fail in operation on occasion Oftentimes, light assemblies are difficult to remove without causing damage to the surface into which they are mounted which can require unnecessary outside contractor cost to make sightly again. Further, allowing easy adjustment or accessibility for replacement of components is typically not found in prior luminaires of the scale of the present disclosure. It is therefore an object of the invention to provide a recessed luminaire assembly which overcomes at least in part the above-described problems.

This object is achieved by providing a recessed luminaire assembly according to the appended claim <NUM>. Preferable embodiments are disclosed in the dependent claims. The present disclosure provides a recessed luminaire that is one or more of easily and reliably retainable within a recess with spring assembly retainer, tiltable relative to the surface into which the luminaire is recessed, and has an adjustable beam spread that is angularly adjustable.

In one aspect of the disclosure, an assembly for an opening through a member is set forth. The assembly also includes a body; and a first spring retention assembly coupled to the body, said first spring retention assembly includes a first coil spring at least partially disposed within a first spring housing, said first coil spring having a first end extending through the first spring housing and coupled to the body, said first coil spring extendable from and retractable into the first spring housing.

Implementations may include one or more of the following features. The assembly where the body may include a flange, where said flange is adjacent an outer surface of the member and the first spring housing is disposed adjacent to an inner surface of the member. The body may include a trim piece. The assembly may include an inner recess disposed on an inner surface of the body. The first end may include an opening and where the inner recess may include a retainer received within the opening of the first end. The body may include an outer recess receiving the first coil spring, said inner recess and the outer recess having a slot therebetween receiving the first coil spring therein. The first spring housing may include a first position adjacent a longitudinal end of the body during insertion into the opening. The longitudinal end may include an heat sink subassembly. The first spring housing is disposed adjacent a trim piece after insertion into the opening. The first spring housing includes a first portion and a second portion that together form an outer annular wall and a first end wall and a second end wall, said outer annular wall includes a slot, said first end extending from the slot. The first portion includes the first end wall and a receiver extending from the first end wall and where the second portion includes the second end wall and a retainer extending from the second end wall. The first portion where the receiver includes an inner wall receiving the retainer. The inner wall may include a pair of slots and the retainer may include a pair of tabs engaging the pair of slots. The coil spring is disposed around the inner wall. The first end wall includes a first O-ring channel and a first O-ring disposed therein, and the second end wall includes a second O-ring channel having a second O-ring disposed therein. The outer annular wall may include a plurality of outer annular wall portions forming a discontinuous wall having the slot therein. The first portion may include at least one of the plurality of annular wall portions and the second portion may include at least one of the annular wall portions. The slot is disposed between two annular wall portions of the plurality of wall portions disposed on either the first portion or the second portion. The first spring housing may include a high friction surface disposed thereon. The assembly the body may include a trim piece coupled to a tilt mechanism subassembly, said tilt mechanism subassembly coupled to a heat sink subassembly. The assembly may include a second spring retention assembly coupled to the body, said second spring retention assembly may include a second coil spring and a second spring housing, said second coil spring having a first end extending through the second spring housing and coupled to the body, said second coil spring may include a coil portion disposed within the spring housing, said spring extendable from and retractable into the spring housing. The body is coupled to a component may include a speaker, a sensor or a wall controller. A light assembly may include: the assembly includes a light source coupled to the body; a first lens optically coupled to the light source; a first lens holder coupled around the light source holding the first lens in a fixed position relative to the light source; a second lens optically coupled to the first lens; and a second lens holder rotatably coupled to the first lens holder and holding the second lens optically adjacent to the first lens, said second lens holder and the second lens rotatable relative to the first lens and the first lens holder. An assembly may include: the assembly ; a lower body may include a flange; and said lower body may include a first lateral edge disposed within or flush with the flange and a second lateral edge disposed within or flush with the flange, said lower body may include a first surface extending below the flange and forming a retainer, a first wall extending from the first lateral edge defining a second retainer, said lower body may include a lens extending between the first retainer and the second retainer. The assembly may include: a tilt assembly may include a first arm coupled to a second arm, said second arm rotatably coupled to the first arm at a pin defining an axis of rotation defined by at least a first pin; and an adjustment mechanism rotatably coupled to the first arm adjacent to the pin and moving the second arm. The adjustment mechanism may include a threaded fastener rotatably coupled to the first arm. The threaded fastener is disposed at an angle relative to a longitudinal axis of a trim piece. The threaded fastener may include a ball end and where the second arm may include a slot, said ball end disposed within the slot.

One general aspect includes a method of installing an assembly within an opening through a member may include a first side and a second side. The method also includes extending a first coil spring from within a first spring housing while a first end of the first coil spring is coupled to a body of the assembly, extending a second coil spring from within a second spring housing while a first end of the second coil spring is coupled to the body of the assembly; inserting the first spring housing and the second spring housing into the opening; thereafter, inserting the body of the assembly into the opening; and generating a force, by the first coil spring and the second coil spring, on the body in a longitudinal direction.

Implementations may include one or more of the following features. The method may include, after inserting, retracting the body at least partially from the opening while the first coil spring housing and the second coil spring housing are disposed against the first side of the member. The method may include replacing a portion of the assembly while the body extends at least partially from the opening. Extending the first coil spring may include extending the first coil spring from within the first spring housing while the first end of the first coil spring is coupled to a trim piece of the assembly. Inserting the body may include inserting a heat sink subassembly followed by an optic subassembly into the opening. Inserting the body may include inserting a heat sink subassembly followed by an optic subassembly followed by a tilt mechanism subassembly. Generating the force may include retaining a flange of a trim piece on the first side of the member with the force while the first spring housing and the second spring housing are disposed adjacent the second side of the member.

One general aspect includes an assembly also includes an upper body; a tilt assembly may include a first arm coupled to a second arm, said second arm rotatably coupled to the first arm at a pin defining an axis of rotation defined by at least a first pin; and an adjustment mechanism rotatably coupled to the first arm adjacent to the pin and moving the second arm.

Implementations may include one or more of the following features. An assembly where the adjustment mechanism may include a threaded fastener rotatably coupled to the first arm. The threaded fastener is disposed at an angle relative to a longitudinal axis of a trim piece. The threaded fastener may include a ball end and where the second arm may include a slot, said ball end disposed within the slot. The slot is curved. The slot is disposed between a first portion of the second arm and a second portion of the second arm. The second arm may include a first portion coupled to the upper body and a second portion coupled to the pin. The first portion is perpendicular to the second portion. The second portion may include an extension received within a recess in the first arm. The recess defines a rotational limit for the second arm. An assembly may include a spring coupled between the first arm and the second arm, said spring resisting rotation of the second arm relative to the first arm. The spring may include a torsion spring may include a first end coupled to the first arm and a second end coupled to the second arm. The second arm rotates relative to the first arm at the axis of rotation, where the torsion spring is coupled adjacent the axis of rotation. The lower body may include a trim piece. An assembly may include a baffle disposed within the trim piece. An assembly may include a heat sink subassembly and an optical subassembly coupled to the second arm. An assembly may include a heat sink subassembly coupled to the second arm and a spring coupled to the first arm and the heat sink subassembly resisting rotation of the heat sink subassembly relative to the first arm. The spring may include a constant force spring. The first arm is circular and is disposed inside a trim piece. The second arm is partially circular. The second arm may include a plurality of retainers extending in a longitudinal direction coupling the second arm to a base of a heat sink subassembly. Plurality of retainers is received within respective recessed in the base. The first arm is coupled to a lower body.

One general aspect includes a light assembly having a light source; a first lens; a first lens holder coupled round the light source holding the first lens in a fixed position relative to the light source; a second lens; and a second lens holder rotatably coupled to the first lens holder and holding the second lens optically adjacent to the first lens, said second lens holder and the second lens rotatable relative to the first lens and the first lens holder.

Implementations may include one or more of the following features. The light assembly where the first lens holder may include a plurality of recesses on an outer surface and where the second lens holder may include fingers having a tab, said tab adjacent to a surface of a base of a heat sink subassembly, said fingers disposed within respective recesses. The light assembly may include a mount coupled to a heat sink subassembly and a retainer extending longitudinally from the first lens holder, said mount may include a retainer slot receiving the retainer. The first lens holder may include an outer cylindrical wall having a slot therethrough and the second lens holder may include a finger may include a tab, said tab received within the slot, where the slot and tab define a maximum beam spread and a minimum beam spread of the first lens and second lens. The light assembly where in the outer cylindrical wall further may include a second slot, said second slot receiving a second tab disposed on a second finger extending longitudinally from the second lens holder. The first lens holder is cylindrical may include a first diameter and the second lens holder may include a second diameter greater than the first diameter. The first lens hold fits partially within the second lens holder. In the first lens holder may include a plurality of detents on an outer wall thereof, said detents engaging a detent finger extending longitudinally therefrom, said detent finger engaging one of the detents. The second lens may include an extension extending radially therefrom, said second lens holder may include a notch on an inner surface of the outer wall, said extension received within the notch. The second lens holder may include an accessory holder.

One general aspect includes a wall wash light assembly having a light source generating light, a lower body comprising a lower surface defining a plane and a lens coupled to said lower body extending from the plane defined by the lower body. Implementations may include the lower body comprising a flange, said flange defining the plane; the lower body comprising a first lateral edge disposed within or flush with the flange and a second lateral edge disposed within or flush with the flange, said lower body comprising a first surface extending below the flange and forming a retainer, a first wall extending from the first lateral edge defining a second retainer, said lens extending between the first retainer and the second retainer; a first lateral edge disposed within or flush with the flange and a second lateral edge disposed within or flush with the flange; the lens comprising one point or partial surface below the plane of the lower surface; the lens being planar; the lower body being rectilinear; the lower body comprising a baffle and a trim piece; a sealing ring coupled between the baffle and the trim piece; the baffle comprising a side wall having a triangular portion extending below the flange of the trim piece; an optic subassembly coupled at an angle relative to a base of an heat sink subassembly; the light source disposed off of a longitudinal axis; the light from the lens is directed to an adjacent wall; the light from the lens is directed to a mounting surface and an adjacent wall; the light from the lens being directed to a mounting surface, an adjacent wall and a corner therebetween; the lower body comprising a square cross-section.

In another aspect of the disclosure a wall wash light assembly coupled to a mounting surface has a light source generating light, a lower surface proud of the mounting surface and a lens with one point or a partial surface below a plane of the lower surface.

Further areas of applicability of the teachings of the present disclosure will become apparent from the detailed description, claims and the drawings provided hereinafter, wherein like reference numerals refer to like features throughout the several views of the drawings.

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.

Referring now to <FIG>, a partially exploded view of a first example of a light assembly or luminaire <NUM> is illuminated. The luminaire <NUM> has a longitudinal axis <NUM> along which the subassemblies are illustrated. The luminaire <NUM> has an heat sink subassembly <NUM> that acts as a heat sink. Heat is generated by a light source <NUM> and/or a power source <NUM>. The power source <NUM> may be coupled to an external power supply through a connector <NUM>. The power source <NUM> may include an AC to DC converter and a driver circuit used for driving the LEDs of a light source <NUM>.

The heat sink subassembly <NUM> in the present example comprises a plurality of heat sink fins <NUM>. Although in this example, the heat sink subassembly <NUM> generally forms a cylinder, other shapes such as but not limited to rectangular solids may be used. The size and shape of the heat sink subassembly <NUM> are only limited by the size of the aperture into which they are installed. The heat sink fins <NUM> are disposed around a circumference of base <NUM>, which is circular in cross-section. In this example, the heat sink fins <NUM> are rectangular and extend radially inward. Also in this example, the heat sink fins <NUM> form a cylindrical opening or volume in which a second group of heat sink fins <NUM> are disposed. In this example, the second group of heat sink fins <NUM> are disposed radially around the axis <NUM> and spaced apart radially from the first group of heat sink fins <NUM>. In this example, twenty-three fins are disposed around the circumference. Four fins <NUM> are disposed within the center at <NUM> degree angles to each other. The number, shape and positions of the heat sink fins may vary depending on various design considerations and applications.

An optic subassembly <NUM> is coupled to the heat sink subassembly <NUM>. The optic subassembly <NUM> has the light source <NUM> such a plurality of light emitting diodes by way of example. Other light sources including but not limited to micro-LEDs, quantum dots, and OLEDs may also be used. The optic subassembly <NUM> also has a mount <NUM> that is used to mount or secure the light source <NUM> directly to the base <NUM>. In this example, the light source <NUM> is centered at the longitudinal axis <NUM>. The mount <NUM> is in this example is circular in shape and will be described in further detail below. Other shapes for the mount <NUM> may be used. The mount <NUM> is illustrated coupled to a holder <NUM>. The holder <NUM> is used to hold the optics of the optic subassembly <NUM>. In some examples, the holder <NUM> holds one single lens. In other examples, the holder <NUM> may hold a plurality of lens that may be adjusted to allow the light distribution angle to be changed. As will be described in more detail below, the mount <NUM> is mounted to the base <NUM> of the heat sink subassembly <NUM>. The holder <NUM> is coupled to the mount <NUM>.

A tilt mechanism subassembly <NUM> is disposed adjacent to the optic subassembly <NUM>. In this example, the tilt mechanism subassembly <NUM> is coupled to the base <NUM> of the heat sink subassembly <NUM>.

The optic subassembly <NUM> and the heat sink subassembly <NUM> form an upper body <NUM> that is pivotally mounted to a tilt mechanism subassembly <NUM>. The upper body <NUM> may include the light source <NUM> and/or a holder <NUM>, a lens or lenses, and/or the heat sink subassembly <NUM>. The tilt mechanism subassembly <NUM> has a first arm <NUM> that remains stationary relative to a second arm <NUM>. The second arm <NUM> may also be part of the upper body <NUM>. A cross-section of the first arm <NUM> is circular in shape. The second arm <NUM> pivots relative to the first arm <NUM>. Ultimately the first arm <NUM> is coupled to the components such as lower body <NUM> that are mounted within the opening. The lower body <NUM> may include the trim piece <NUM> and or the baffle sub-assembly <NUM> or merely the first arm <NUM>. The second arm <NUM> has a plurality of tabs <NUM> that are received within recesses <NUM> disposed around the circumference of the base <NUM>. Of course, screws, rivets, fasteners and adhesives maybe used to secure the second arm <NUM> to the base <NUM>. The width of the recesses <NUM> are sized to receive the width of the tabs <NUM>. The tabs <NUM> extend in a longitudinal direction and have a radial direction portion <NUM> that engages the upper surface 22A of the base <NUM> which is opposite the optic subassembly <NUM> and the second arm <NUM> adjacent to a lower surface 22B of the base <NUM>. In this example, four tabs <NUM> are received in four recesses <NUM>. As will be described in more detail below, when assembled, the lower surface 22B of the base <NUM> is disposed directly adjacent to the upper surface <NUM> of the second arm <NUM>. The first arm <NUM> and the second arm <NUM> are joined together and rotate about a pin <NUM>. In this example, two pins <NUM> are disposed on each side of the first arm <NUM> and share an axis of rotation <NUM>. The pin <NUM> may be integrally formed with the first arm <NUM>. The heat sink subassembly <NUM> and the optic subassembly <NUM> together with the second arm <NUM> rotate around the axis of rotation <NUM> that is perpendicular to the longitudinal axis <NUM>.

A trim piece <NUM>, which, in this example, is cylindrical in shape is coupled to the first arm <NUM>. The trim piece <NUM> may positions the tilt mechanism subassembly <NUM> relative to an aperture of opening. That is, the trim piece <NUM> and the first arm <NUM> may be fixed in place during operation after installation. However, the trim piece <NUM> may also move. When the second arm <NUM> tilts, the trim piece <NUM> and the first arm <NUM> may be maintained in position.

The trim piece <NUM> has a generally uniform internal diameter except for an annular ring <NUM>. Although an annular ring <NUM> is illustrated, the ring <NUM> may be discontinuous. The annular ring <NUM> extends inward toward the longitudinal axis to provide a stop for a flange <NUM> that extends radially outwardly from the first arm <NUM>. When the upper housing is inserted into the bottom of the trim piece <NUM> the annular ring <NUM> prevents further longitudinal movement. The flange <NUM> may be disposed around or partially around the bottom edge of the first arm <NUM>. In one constructed embodiment, two flanges <NUM> disposed on opposite sides of the first arm <NUM> that form about a quarter of the circumference of the first arm <NUM> respectively. In one constructed example, the trim piece <NUM> was formed of metal. Further, the annular ring may be also disposed on the first arm <NUM> and snap arm disposed at <NUM> for holding the arm <NUM> together with the trim piece.

The trim piece <NUM> has a flange <NUM> that extends therefrom. The flange <NUM> forms a planar surface and the upper surface of which rests against the surface to which it is mounted.

A baffle subassembly <NUM> is sized to be received within the trim piece <NUM> of the lower body <NUM>. That is, the outer diameter of the baffle subassembly <NUM> is less than the inner diameter of the trim piece <NUM>. The baffle subassembly <NUM> has an O-ring <NUM> disposed within a groove that is annular in shape. The O-ring <NUM> is compliant and therefore allows a snug fit within the trim piece <NUM>. Although a separate trim piece <NUM> and baffle subassembly <NUM> are illustrated, the components may be combined into one piece of the lower body <NUM>.

The trim piece <NUM> and the baffle subassembly <NUM> are illustrated as circular in cross-section. However, various other types of cross-sections, such as rectangular, square and other shapes, may be used. When using other shapes, the trim piece may still have a round cross-section at the top which changes to a square cross section toward the bottom of the luminaire <NUM>.

The luminaire <NUM> has a first body <NUM> defined by the upper body <NUM> (the heat sink subassembly <NUM>, the optic subassembly <NUM> and the holder <NUM>), the tilt mechanism assembly <NUM> and the trim piece <NUM>. The body <NUM> may also include the baffle subassembly <NUM>.

A spring retention assembly <NUM> is used to secure the body <NUM> luminaire <NUM> within an opening of a member as described in more detail below. The spring retention assembly <NUM> may allow not only easy assembly but removal of the luminaire or other component, or replacement or adjustments of portions of the luminaire or components. The spring retention assembly <NUM> comprises a coil spring <NUM> disposed within a spring housing <NUM>. In this example, the spring housing <NUM> comprises a first portion <NUM> and a second portion <NUM>, details of which are provided below. Of course, a one-piece housing and more than a two piece housing may be used. In general, the coil spring <NUM> is coupled to the trim piece <NUM>. Two spring retention assemblies <NUM> are used in the present example. However, one or more than two may also be employed. In general, the coil spring <NUM> is fixed to the trim piece <NUM>. The spring housing <NUM>, in this example, is formed by snapping together the first portion <NUM> and the second portion <NUM>.

Referring now to <FIG>, the first portion <NUM> of the spring housing <NUM> is illustrated in further detail. By way of example, the first portion <NUM> comprises an end wall <NUM> that is circular in shape. The end wall <NUM> has annular outer wall portions 212A, 212B and 212C that ultimately form the outer annular wall <NUM> (with wall portions 242A and 242B in <FIG>). A slot <NUM> is disposed between the annular wall portions 212B and 212C so that the end of the coil spring <NUM> extends therefrom. The slot <NUM> between two adjacent outer wall portions on the same housing portion facilitates assembly of the spring housing <NUM>.

The first portion <NUM> also has an inner wall. Should the first portion be cylindrical the first portion <NUM> may be an annular wall. The inner annular wall <NUM> has a tapered cross section <NUM> that tapers inward and toward the end wall <NUM>. That is, the thickness of the inner annular wall <NUM> has a ramped edge of thickness. The ramped edge or thickness is discontinuous at the slots <NUM>. Two slots <NUM> are illustrated and terminate at an opening <NUM> that is adjacent to the end wall <NUM>. In this example, the first outer wall portion 212A, the second outer wall portion 212B and the third outer wall portion 212C, together with the slot <NUM>, form about half of the circumference of the annular wall <NUM>. The volume between the inner annular wall <NUM> and the outer annular wall <NUM> forms a cavity <NUM> to receive the spring coil <NUM> and the second end <NUM> thereof.

The end wall <NUM> has high friction surface <NUM> thereon. High friction means a higher friction than the material of the spring housing <NUM>. The high friction surface <NUM> is disposed on one or more surfaces of the spring housing <NUM>. The high friction surface <NUM> may be integrally formed in a manner such as over-molding or separate component such as a stick-on or O-ring <NUM>. The high friction surface <NUM> could include teeth or other means for engaging a surface. In the present example, an annular O-ring channel <NUM> is disposed on an edge of the housing <NUM>. The channel <NUM> is thus circumferential around the end of the end wall <NUM>. The channel <NUM> receives the O-ring <NUM> that partially extends from the channel <NUM>. The O-ring <NUM> may be formed of rubber or another type of material. Preferably, the material of the O-ring <NUM> is compliant and allows the spring housing <NUM> to better maintain its position or grip after assembly. The first portion <NUM> may be molded from a plastic material.

Referring now to <FIG>, the second portion <NUM> of the spring housing <NUM> is set forth. The second portion <NUM> has an end wall <NUM> and two outer annular wall portions 242A and 242B. In this example, the wall portions 242A, 242B are located on opposite sides of the second portion <NUM>. In this example, the first outer annular wall portion 242A and the second outer annular wall portion 242B may take up about <NUM>% (<NUM>% each) of the circumference end wall <NUM> and the overall annular wall <NUM>.

The end wall <NUM> has a pair of retainers 244A and 244B extending in an axial direction and spaced apart. The retainers 244A and 244B may be flexible so that during assembly they move. The retainers 244A and 244B have a tab 246A, 246B at the end thereof. The tabs 246A and 246B are formed of a ramped or angular surface 248A, 248B and a catch surface 250A and 250B, respectively. Upon insertion into the inner annular wall <NUM>, the ramped surfaces 248A, 248B cause the retainers 244A, 244B to flex inward toward each other. During assembly, the second portion <NUM> is rotated so that the tabs 246A, 246B are received within the openings <NUM> on either side of the inner annular wall <NUM>. In the present example, a snap fit sound and feel will be obtained when the tabs 246A, 246B are aligned with the opening <NUM>.

The second portion <NUM>, and the end wall <NUM> thereof, has a channel <NUM> disposed therearound for receiving an O-ring <NUM> or another high friction surface in a similar manner to that described above in <FIG>.

Referring now to <FIG>, the coil spring <NUM> is illustrated in further detail. The coil spring <NUM> has a first end <NUM> that has an engagement means such as an opening <NUM> extending therethrough. Other types of engagement mean may include but are not limited to a dimple, a slot of other means formed therein or thereon. The coil spring <NUM> has a number of turns and resists being uncoiled. The coil spring <NUM> is extendable from and retractable into the spring housing <NUM>. That is, the coil <NUM> has a tendency to remain in the coiled position. The coil spring <NUM> comprises a second end <NUM> that is disposed and is intended to stay disposed within the spring housing <NUM>.

Referring now to <FIG>, <FIG>, details of the assembly of the spring retention assembly <NUM> relative to the trim piece <NUM> are set forth. The spring retention assemblies <NUM> are shown in a partially extended position.

The first end <NUM> and the opening <NUM> are positioned within a retainer means such as but not limited to a slot <NUM> on either side of the trim piece <NUM> in this example. The engagement means engages the retainer means to hold the spring <NUM> in place. The slot <NUM> may be wide enough to accommodate the width of the first end <NUM>. A retainer <NUM> of the retainer means may extend inward from the inner surface of the trim piece <NUM> and engages the opening <NUM> of the first end <NUM>. The engagement means may be a dimple on the spring and a holder or recess on the trim piece.

The trim piece <NUM> has various outer diameters. In this example, the outer diameter is reduced at an outer recess <NUM> so accommodate the first end <NUM> of the coil spring <NUM>. The recess <NUM> may be integrally formed into the trim piece <NUM> during forming or molding. That is, the coil spring <NUM> is flat and fits flush or is itself recessed within the recess <NUM>. This allows the trim piece <NUM> to easily be accommodated within a standard round opening. During insertion, the spring retention assemblies <NUM> are moved out of position as will be described in further detail below and as illustrated in <FIG>. In this example, the retainer <NUM> is formed by a ramped surface 322A and a catch surface 322B perpendicular to the wall of the inner recess <NUM> to catch the edge of the opening <NUM>. The retainer <NUM> may be in the inner recess <NUM>. The inner recess <NUM> may allow the retainer <NUM> to extend inward but not further than the generally constant inner diameter of the trim piece <NUM>. The mismatch of the outer recess <NUM> and the inner recess <NUM> form the slot <NUM>. That is the slot <NUM> is formed between the outer recess <NUM> and the inner recess <NUM>.

In <FIG>, a cross section of the coil spring <NUM> having the first end <NUM> coupled to the retainer <NUM> at the opening <NUM> is set forth. The depth of the inner recess <NUM> is shown. <FIG> enlarges the cross-section at the recess.

Referring now to <FIG>, different stages of installing the luminaire <NUM> are illustrated. During assembly, a hole or opening <NUM> is placed into a member <NUM> such as a ceiling or a wall for recessing the luminaire <NUM> therein. The member has a first side 412A and a second side 412B. Retention in the opening <NUM> takes place using the spring retention assemblies <NUM> as described in further detail below. That is, retention uses the spring retention assemblies <NUM>.

More specifically, in <FIG>, the spring housings <NUM> are moved in an upward direction in this example. That is, the coil springs <NUM> of the spring housings <NUM> extend in a longitudinal direction while the end <NUM> of the coil spring <NUM> is maintained and assembled at the lower body <NUM> such as the trim piece <NUM>. The coil spring <NUM> extends out of the housing <NUM> through the slot <NUM> mentioned above. While a complete luminaire is illustrated, different types of assemblies may use the spring retention assemblies <NUM>. The spring housings <NUM> may be placed above the heat sink subassembly <NUM> of the body <NUM> during final insertion into the opening <NUM> (adjacent the longitudinal end <NUM> opposite the trim piece <NUM>). A tool or other device may be used to maintain the coil spring in a position during assembly. The body <NUM> (or at least a portion thereof) of the luminaire <NUM> is thus pushed up into the opening <NUM>. By way of example, the luminaire may have no heat sink subassembly <NUM> or an heat sink subassembly <NUM> that is installed within the opening and is not adjustable. This is illustrated in <FIG>. In this example, first the heat sink subassembly <NUM>, followed by the optic subassembly <NUM>, followed by the tilt mechanism sub-assembly, followed by the trim piece <NUM> up to the flange <NUM>. The order of assembly may be different. The trim piece of the lower body <NUM> is retained in the opening at some point with one or more spring retention assemblies <NUM>. In <FIG>, the luminaire <NUM> is held into position by the spring housings <NUM> and the force of the coil springs <NUM>. The O-rings <NUM> may contact the second side 412B of the member <NUM>. The coil spring <NUM> is biased to be retracted into the spring housing <NUM>. This provides a downward (longitudinal direction) force illustrated by the arrow <NUM> imparted by the spring housing <NUM>. The downward force pulls the trim piece <NUM> in an opposite direction so that the inner surface of the flange <NUM> rests against the bottom side 412A of the member <NUM>.

Referring now to <FIG>, the member <NUM> may not be uniform in thickness or may have various thicknesses. The spring retention assemblies <NUM> allow different thicknesses or ranges of thicknesses in ceiling height because the coil springs <NUM> and the spring housings <NUM> operate independently allowing the spring housings <NUM> to be at different position relative to the end <NUM> of the coil spring <NUM>.

Referring not to <FIG>, the spring retention assembly <NUM> also allow for the retraction of the luminaire <NUM> from the opening <NUM>. Retraction may be used for replacing or adjusting components in the luminaire <NUM>. For example, replacing a light source or adjusting the lenses or the like. As is illustrated the spring retention assembly <NUM> push against the side 412B as the luminaire <NUM> is retracted. The coil springs resist the movement which is overcome by force. For complete removal the coil spring assembly can be moved into the opening. For partial retraction, the spring retention assemblies <NUM> may maintain their position. In the present example, many components are easily replaced. After retraction, the luminaire <NUM> may be pushed or allowed to return into place as in <FIG>. However, the spring retention assemblies <NUM> may be positioned as in <FIG>.

The tilt angle of the light is the central angle of light relative to the longitudinal axis (axis of insertion into the recess). The central angle of light is adjustable using the tilt mechanism subassembly. The central angle may be tilted and independently the beam spread or zoom of the light may be changed.

Referring now to <FIG>, the luminaire <NUM> and a first tilt mechanism subassembly <NUM> associated with the luminaire <NUM> is illustrated. However, <FIG> also illustrates the tabs <NUM> that secure the second arm <NUM> to the heat sink subassembly <NUM>. As mentioned above, the tabs <NUM> fit within the recesses <NUM>. The tabs <NUM> extend in a longitudinal direction and have a radial direction portion <NUM> that is secured around the upper surface 22A of the base <NUM>. The lower surface 22B of the base is directly adjacent to the upper surface <NUM> of the second arm <NUM>. Another way of stating this is that the distance between the radial direction portion <NUM> and the upper surface <NUM> is sized to fit the thickness C of the base <NUM>. Although tabs <NUM> are illustrated other securing means mentioned above such as screws, rivets, fasteners and adhesives may be used to secure the second arm <NUM> to the base <NUM>.

The second arm <NUM> has a first portion <NUM> that is partially circumferential about the luminaire <NUM>. The first portion <NUM> extends about one half the circumference and therefore is partially ring-shaped. The first portion <NUM> of the second arm <NUM> has a bottom surface <NUM> that when the second arm <NUM> is in an untilted position, is directly adjacent to an upper surface <NUM> of the first arm. In the present example, the optical axis of the light source corresponds to the longitudinal axis <NUM> of the luminaire <NUM>.

In this example, the second arm <NUM> has second portions <NUM> that extend generally perpendicular to the first portion <NUM>. The second portion <NUM> receives the pin <NUM>. The pin <NUM> forms a pivot point that may be constructed in various manners depending on the application. Each side of the second arm has one second portion <NUM>. The second portions <NUM> have an opening <NUM>, the diameter of which is sized to receive the outer diameter of the pin <NUM> to allow the second arm <NUM> to rotate relative to the first arm <NUM>.

The second portion <NUM> of the second arm <NUM> has an extension <NUM>. The extension <NUM> has first edge surface 524A and a second edge surface 524B. The extension <NUM> fits within a recess <NUM> in each side of the first arm <NUM>. The recesses <NUM> are radially inwardly from the outer surface of the first arm <NUM>. The recess <NUM> thus forms a first abutment surface 526A and a second abutment surface 526B. In the most upright position, the abutment surface 526A is adjacent to the extension surface 524A. This is best illustrated in <FIG>. In the most tilted position, the abutment surface 526B is directly adjacent to the extension surface 524B.

The second arm <NUM> has a slot <NUM>. The slot <NUM> may be curved as illustrated or straight. In one constructed example, a curved slot eased the ball head (described below) moving along the length of the slot without binding. The slot <NUM> extends between the first portion <NUM> of the second arm <NUM> and the second portion <NUM> of the arm <NUM>. The slot <NUM> is formed between an outer wall <NUM> and an inner wall <NUM>. The radial distance between the outer wall <NUM> and the inner wall <NUM> is sized to receive a member such as a shaft of a threaded fastener <NUM>. The threaded fastener <NUM> is secured within the first arm <NUM> by a threaded retainer <NUM>. In this example, the threaded fastener <NUM> has a ball head <NUM> that is received within the slot <NUM> as the threaded fastener <NUM> is rotated, the ball head <NUM> travels from the position illustrated in <FIG> to the position illustrated in <FIG>. The threaded fastener <NUM> may be a push rod, arm or member that engages the slot. The angular movement of the second arm <NUM> thus is defined by the length of the slot <NUM> and the distance that the threaded fastener <NUM> is allowed to travel. The threaded fastener <NUM> and the slot <NUM> are adjacent to the pin <NUM>. In this example, no springs are required because the threaded fastener maintains its position using the threads. Slot <NUM> may also be a rectangular slot <NUM>' rather than curved.

The tilt mechanism may also be used for non-lighting or other lighting applications. For example, a sound speaker may be employed rather than a light source.

Referring now to <FIG>, another example of a luminaire <NUM>' is set forth with a tilt mechanism <NUM>' different from that shown in <FIG>. In this example, the tilt mechanism subassembly <NUM>' has a modified second arm <NUM>'. In this example, the second portion <NUM>' of the second arm <NUM> is modified to not include the curved slot <NUM>. Further, a threaded fastener <NUM> without a ball head as illustrated in <FIG> is provided in a similar location. Of course, the other types of members, rods, or pins may be used in this example too. The retainer <NUM> retains the threaded fastener <NUM> therein. The threaded fastener <NUM> pushes against the bottom surface <NUM> of the first portion <NUM> of the second arm <NUM>. As the threaded fastener <NUM> is extended, the bottom surface <NUM> of the second arm <NUM> moves in an angular direction around the pin <NUM> as the axis of rotation <NUM>.

A resistance means such as a torsion spring <NUM> illustrated in an unbiased position in <FIG> is used. Other resistance means such as a living hinge or flat springs may be used. The torsion spring <NUM> has a first arm <NUM>, a second arm <NUM> and a retainer arm <NUM>. In this example, the torsion spring <NUM> is located on the opposite side of the second arm <NUM> from the threaded fasteners <NUM>. As is best shown in <FIG>, a receiver <NUM> receives the retainer <NUM>. The receiver <NUM> is a hole or channel that extends inward or in a radial direction into the first arm <NUM> or the tilt mechanism sub assembly <NUM>'. The first arm <NUM> of the torsion spring <NUM> is received within a channel <NUM>. In <FIG>, the torsion spring <NUM> is shown in an unbiased position. In <FIG>, the second arm <NUM>' is tilted when the threaded fastener <NUM> is extended upward so that the upper surface <NUM> pushes against the bottom surface <NUM> of the second arm <NUM>'. As the second arm <NUM> of the torsion spring <NUM> is moved by the second portion <NUM> by being engaged in the channel <NUM>, the torsion spring <NUM> is in a biased position and provides a counterforce to the threaded fastener <NUM> pushing the second portion <NUM> of the second arm <NUM>' into the tilted position. That is, the torsion spring <NUM> tries to move the second portion <NUM> of the second arm <NUM> in the direction illustrated by the arrow <NUM> and return the upper body <NUM> and therefore the heat sink subassembly <NUM> to a vertical position (when the luminaire <NUM>' is installed in a vertical position). In other words, the torsion spring <NUM> tries to align the second arm <NUM>' and the heat sink subassembly <NUM> toward alignment with the longitudinal axis <NUM> of the luminaire <NUM>'.

An adjustment tool (not shown), such as screwdriver or an Allen wrench, may be used to move the threaded fastener <NUM> in a clockwise or counterclockwise position to extend or retract the threaded fastener <NUM> from the retainer <NUM>.

Referring now to <FIG>, a constant force spring <NUM> is used in place of the torsion spring <NUM>. The constant force spring <NUM> may be formed by a coil spring as illustrated above with respect to the spring retention assembly <NUM>. The constant force spring <NUM> has a first portion <NUM> coupled to the heat sink subassembly <NUM> and a second portion <NUM> coupled to the first arm <NUM>. Of course, the second portion <NUM> may be coupled to the trim piece <NUM> or other stationary component. The constant force spring urges the tilted second arm <NUM> and the heat sink subassembly <NUM> toward the vertical position. The threaded fastener <NUM> illustrated in <FIG> may be used to move the second arm into the desired position. As the threaded fastener <NUM> is retracted, the second arm <NUM> is forced to maintain contact with the upper surface <NUM> of the threaded fastener <NUM> when the threaded fastener <NUM> is fully retracted, the constant force spring <NUM> is also retracted. The first portion <NUM> is fixedly mounted to the moving portion of the luminaire <NUM>'. The second portion <NUM> may comprises a connector or the like. A spring or retractor may be located in the first portion <NUM>, a connection member <NUM> couples the first portion <NUM> and the second portion <NUM>. The connection member <NUM> may be a cord or spring coil. The connection member <NUM> may be constantly in tension. The connection member <NUM> may also be the spring <NUM> itself.

Referring now to <FIG> and <FIG>, one example of the optic assembly <NUM> is illustrated. In this example, the optic assembly <NUM> comprises the mount <NUM>. The mount <NUM> is disposed around the light source <NUM>. The mount <NUM> is secured to the lower surface 22B of the base <NUM> using the threaded fasteners <NUM>. A lens holder <NUM> has a plurality of retainers <NUM> that extend radially inwardly. The retainers <NUM> engage a retaining slot <NUM> formed by a tab <NUM> disposed on the mount <NUM>. The tab <NUM> extends circumferentially to leave the slot <NUM> to engage the retainer <NUM>. The retainer slot <NUM> may be shaped and sized to provide an opening so the retainer <NUM> may be inserted in the vertical direction and rotated into the retainer slot <NUM> several degrees to be held against the tab <NUM>. In the present example, two slots <NUM> formed by two tabs <NUM> are used. However, more or fewer slots <NUM> and tabs <NUM> may be used.

A plurality of lens retainers <NUM> may be disposed on the opposite side as the retainer <NUM>. The lens retainers <NUM> are used to secure the lens <NUM> to the lens holder <NUM>. The lens <NUM> may have optics to provide a fixed amount of beam spreading. The lens retainer <NUM> fit within recesses <NUM> to maintain the lens <NUM> in a fixed position relative to the lens holder <NUM> so the lens does not rotate. Of course, recesses may be disposed on the lens holder <NUM> while the while the retainer is disposed on the lens <NUM>. Of course, other means to secure the lens and retainers may be used.

The lens holder <NUM> may also have a slot <NUM> disposed therein. The slot <NUM> is in a side wall <NUM> of the lens holder <NUM>.

A plurality of detents <NUM> may be formed in the side wall <NUM>. The detents <NUM> are formed as vertical recesses that are spaced apart. In the present example, five detents <NUM> are provided. The operation of the slots <NUM> and the detents <NUM> are further described below with respect to <FIG>. In this example, two sets of slots <NUM> and two sets of detents <NUM> are disposed on opposite sides of the side wall <NUM>. However, more or fewer slots and detents may be used. Of course, the detents and slots may be eliminated if only a fixed lens is desired. Other types of feedback devices may be uses besides detents. A rubber overmold on the holder sidewall <NUM> may be used to create an interaction with tab <NUM> to allow for infinite adjustment while ensuring lockability of the position.

When beam spreading is desired to be changed, the zoomable optics may be adjusted. Zoomable means changing the amount of beam spreading. Beam spreading refers to the angular width of the beam relative to a central axis of the beam direction. The amount may vary depending on the optics and the amount of rotation. Beam spreading is typically measured in degrees from the central axis or direction. Without tilting the central beam angle is the longitudinal axis.

Referring now to <FIG>, one problem with fixed optic distribution is that multiple unique optics have to be used to achieve different light distributions from a given source. For some products fixed optics are acceptable. In <FIG>, an adjustable optic subassembly <NUM>' is provided. The adjustable optic subassembly <NUM>' provides discrete indexing from a single optic assembly. Predetermined positioning allows a single optic to provide specified distributions for flexibility when needed and consistency across multiple luminaires if needed. The example also allows for the easy addition of other optical devices/accessories by an end user to further customize the output of the fixture. The present mechanism allows consistency when setting optical distribution across multiple luminaires. Of course, without the indexing features, infinite adjustments may be performed.

In <FIG>, the lens holder <NUM> is as described above in <FIG> and 7D. The light source <NUM> and the mount <NUM> are not illustrated in <FIG>. In the present example, the slots <NUM> and the detents <NUM> are used as described below. In this example, a lower lens holder <NUM> is used to hold a lower lens <NUM>. The lower lens <NUM> is optically coupled to the upper lens <NUM>. That is, the light from the light source <NUM> travels through and is changed by the lens <NUM>. The light from the first lens <NUM> then is changed by the lower lens <NUM>. The changes in this example allow the beam spread from the optical assembly to be changed within a certain range. Changing either or both lenses may allow other beam spreads to be achieved. The lower lens <NUM> has extensions <NUM> that extend outward in a radial direction. In the present example, four extensions <NUM> are used. However, more or fewer extensions may be provided. The extensions <NUM> engage notches <NUM> in the inner part of the outer wall <NUM> of the lower lens holder <NUM>. The extensions <NUM> and notches <NUM> are a securing mechanism. The notch <NUM> is a reduced thickness portion of the outer wall <NUM> that has a depth <NUM> to accommodate the extensions 814as is best illustrate in <FIG>. The interaction of the extensions <NUM> and the notch <NUM> prevent the lower lens <NUM> from rotating relative to the lower lens holder <NUM>. Of course, the notches and extensions may be reversed. The notches may be in the optics and the extensions on the lens holder.

The outer wall <NUM> may also include an accessory holder <NUM>. The accessory holder <NUM> may be used to hold an accessory such as color lens, a diffuser or the like. The accessory holder <NUM> may extend in a longitudinal direction from the outer wall <NUM> in a downward direction. The accessory holder <NUM> may be shaped to accommodate various types of accessories <NUM> as illustrated in <FIG>. The accessory holder <NUM> has a tab <NUM> that is used to secure the accessory <NUM> to the outer wall <NUM> of the lower lens holder <NUM>. The accessory holder <NUM> may be flexible to allow the tabs <NUM> to flex to accommodate the insertion of the accessory <NUM> therein. The accessory may also be held in place by other means such as a magnet, adhesives or fasteners. The accessory <NUM> be but not limited to a diffuser, a louver, a filter, an optical element, and a beam shaper.

The lower lens <NUM> is able to rotate relative to the upper lens holder <NUM>. This, in turn, rotates the lower lens <NUM> relative to the upper lens <NUM> to change the beam spread from a maximum beam spread to a minimum beam spread as is generally illustrated in <FIG> by the angle A. The amount of beam spread may change depending upon the optics within the lens <NUM> and the lower lens <NUM>. That is, the beam spread may be tuned to provide the desired optics. In this example, the movement of the lower lens holder <NUM> is restricted by the slots <NUM>. In this example, fingers <NUM> are associated with each of the slots <NUM>. A tab <NUM> at the end of each finger <NUM> extends radially inwardly into the slots <NUM>. This is best illustrated in the cross section of <FIG>. Thus, the extent of the movement of the lower lens holder <NUM> is restricted by the position of the tabs <NUM> within the slots <NUM>.

To provide feedback during positioning of the lower lens <NUM> relative to the upper lens <NUM>, the detents <NUM> on the upper lens holder <NUM> are used. Detent fingers <NUM>, as illustrated in <FIG>, have a tab <NUM> extending radially inwardly therefrom. The detent fingers <NUM> and the tab <NUM> engage the detents <NUM> during rotation of the lower lens holder <NUM> relative to the upper lens holder <NUM>. In one constructed embodiment, each detent <NUM> changes the beam spread by <NUM>°. Of course, other types or beam spreads may be accommodated depending on the optics of the lens <NUM>, <NUM>. The tabs <NUM> move in and out of the various detents <NUM> as the lower lens holder <NUM> is moved. The detents <NUM> are shaped to only mildly resist the movement and allow the tabs <NUM> to move from detent to detent while providing feedback to the person making the adjustment. It should be noted that the fingers <NUM>, the tab <NUM>, the detent finger <NUM> and the tab <NUM> may be formed of plastic so that the fingers are able to be moved and be assembled with some flexibility. Further, other types of dents or feedback mechanisms may be employed such as rods, slots, tangs or gears.

Referring now to <FIG> and <FIG>, the extent of the movement of the lower lens holder <NUM> is illustrated relative to the upper lens holder <NUM>. In <FIG>, the lower lens holder, when viewed in the downward direction, is at the counterclockwise-most position. In <FIG>, the lower lens holder is at the clockwise most position. The view "downward" is the direction the light travels through the lenses from the light source <NUM> in a generally longitudinal direction.

As the light rays are emitted from the light source <NUM>, Fresnel features on the lenses <NUM>, <NUM> provide the desired beam spread.

Guide walls <NUM> extend in an upward direction from the lower lens holder <NUM>. The inner diameter of the guide wall is the same or just larger than the outer diameter of the upper lens holder. In this manner, the guide walls <NUM> allow the lower lens holder <NUM> to move relative to the upper lens holder.

Referring now to <FIG>, a wall wash light assembly or luminaire <NUM>" is illustrated. For luminaires, it is desirable to illuminate the wall <NUM> from the ceiling <NUM> down to the floor. Traditional reflectors add cost and complexity and require large sizes in order to work. The present disclosure provides a relatively small and aesthetically pleasing luminaire <NUM>". The luminaire <NUM>" also allows the illumination of the plane of the ceiling <NUM> in the area between the luminaire <NUM>" and the wall <NUM>.

The luminaire <NUM>" is similar in construction to that illustrated above and therefore the same reference numerals would be used for the same components. In this example, a rectilinear (rectangular or square) lower body <NUM>' is illustrated. However, other shapes such as round may be used. The lower body <NUM>' may include a trim piece <NUM>' and or the baffle subassembly <NUM>". The lower body <NUM>" may be formed of a single piece including the baffle subassembly <NUM>" and the trim piece <NUM>'. The trim piece <NUM>' has a flange <NUM>. As mentioned above, the trim piece <NUM>' has a baffle subassembly <NUM>" disposed therein. The baffle subassembly <NUM>" is shown in an exploded view in <FIG>. In this example, the baffle subassembly <NUM>" has a first housing portion <NUM> and a second housing portion <NUM>. The first housing portion <NUM> and the second housing portion <NUM> have a lens <NUM> disposed therein. The first housing portion <NUM> and the second housing portion <NUM> may also be formed together as a unitary structure having the lens <NUM> therein. The lens <NUM> is disposed at an angle relative to the plane <NUM> of the flange <NUM> of the trim piece <NUM>' which, in this example, is parallel to the surface (e.g., ceiling or wall) into which the luminaire <NUM>" is mounted. Of course, other non-parallel positions or angles maybe used. That is, the plane of the lens <NUM> may be not normal to the longitudinal axis <NUM>. The lens <NUM> may be planar and contain various types of optics. In one example, the lens <NUM> was frosted to diffuse the light. The second housing portion <NUM> includes a retainer <NUM> disposed therein. The retainer <NUM> comprises a lip or edge that supports the lens <NUM> therein. A second retainer <NUM> is disposed at the opposite end of the lens <NUM> as the retainer <NUM>. When the first housing portion <NUM> is secured to the second housing <NUM>, the lens <NUM> maintains the angular position. Fasteners <NUM> may be used to secure the first housing <NUM> to the second housing portion. Other fastening means may also be used. For example, heat stakes, snaps and other methods may be used. The retainer <NUM> and fasteners <NUM> may be eliminated in favor of adhesives or, heat stakes, or snaps.

The first housing portion <NUM> has a light receiver <NUM> to accommodate the light source <NUM> and lens as will be described in more detail below.

The second housing portion <NUM> has a first lateral edge <NUM> and a second lateral edge <NUM>, both of which are flush with the bottom surface of the flange <NUM>. The lateral edges <NUM> and <NUM> are connected together with a first surface <NUM> and a second surface <NUM>. The first surface <NUM> extends angularly outwardly from the plane of the trim piece <NUM>'. A triangular portion <NUM> of the second surface <NUM> is proud of (extends below in this figure) the plane <NUM> of the trim piece <NUM>'. In one constructed embodiment, surface <NUM> extends proud of the plane <NUM>. The mounting surface <NUM> corresponds to the ceiling <NUM> adjacent to the wall <NUM>. The first surface <NUM> is only a few millimeters below the plane <NUM> of the flange <NUM> or trim piece <NUM>'. Of course, the final extension is determined by the end application. This allows the edge of the lens <NUM> to be below the edge of the trim piece <NUM>', and more specifically, below the plane <NUM> of the flange <NUM>. More specifically, one point or partial surface of the lens <NUM> is disposed below the lower body or the plane defined thereby. This allows light to wash the ceiling <NUM> adjacent the luminaire <NUM>" and the wall <NUM> (and the corner <NUM> thereof) by distributing light within the angle <NUM>.

Side <NUM> extends at an angle to form the retainer <NUM> for the lens <NUM>. The side <NUM> as illustrated is at a non-normal angle to both the lens <NUM> and the plane of the flange <NUM> of the trim piece <NUM>'. However, the side <NUM> may be normal to the lens and the plane of the flange <NUM>.

An upper body <NUM>' is coupled to the lower body <NUM>'. The upper body <NUM>' may include the heat sink subassembly <NUM>, the upper lens holder <NUM>, an extension <NUM>, lens <NUM>, mount <NUM>, and light source <NUM>. The optic subassembly <NUM> is illustrated best in <FIG> and <FIG> may have an extension <NUM> to which the light source <NUM> is coupled. In this example, a single lens <NUM> is generally planar and is disposed at the same angle or similar angle with respect to the lens <NUM>. The upper lens holder <NUM> described above may be used to mount the lens <NUM> to the extension <NUM>. The lens holder <NUM> and the light source <NUM> may be mounted off the longitudinal axis <NUM> of the luminaire <NUM>". The extension <NUM> may be eliminated in favor of a shaped upper body heat sink subassembly <NUM>. In this manner, the light from the light source illuminates the wall <NUM> in a meaningful and even manner, including the portions closest to the plane that the fixture is mounted to <NUM>. The ceiling/mounting plane <NUM> may be slightly washed with light as well, although this is not the primary intended purpose of this specific end application. In some other instances this may be needed/intentional. This is achieved with a minimal reveal below the plane of the flange <NUM> of the trim piece <NUM> as illustrated by the optical angle range <NUM> illustrated in <FIG>.

In <FIG>, the lens <NUM> is tilted about a first axis <NUM> that is parallel to plane <NUM>. The lens holder <NUM> is tilted about the second axis <NUM> which is also parallel to the plane <NUM>.

A sealing ring <NUM> may be disposed around an exterior of the baffle subassembly <NUM>" to seal the baffle subassembly <NUM>" within the trim piece <NUM>'. The sealing ring <NUM> may be disposed in a sealing channel disposed around the baffle subassembly <NUM>'. The sealing ring <NUM> may conform to the shape of the baffle subassembly <NUM>'.

Features of the luminaire such as the spring retention, the tilting mechanism and the zoomable feature may be used together or separately in a luminaire. Different forms of tilting mechanisms are set forth. When tilting is desired, one of the tilting mechanisms may be used.

Referring now to <FIG>, a side cross-sectional view of a component <NUM> such as but not limited to a wall controller is set forth within a wall <NUM>. The component <NUM> is coupled to or has body <NUM> to which one or more spring retention assemblies <NUM> are coupled. The body <NUM> has flanges <NUM> formed therein or coupled thereto. The flanges <NUM> are forced against the outer surface 1012A by the action of the spring retention assemblies <NUM> that provide a force against the inner surface 1012B of the wall <NUM>. The housing <NUM> is pulled into the opening of the wall <NUM> but is prevented from moving further by the flanges <NUM>.

As illustrated the component <NUM> is an electrical component. The component <NUM> may have a power line <NUM> coupled thereto for controlling a device or power the component <NUM> or both. The component <NUM> may also have an antenna <NUM> for wirelessly communicating to another device. The component <NUM> may be powered by a battery. A user interface <NUM> such as a button, switch, dial, touch screen or touch pad may be part of the component.

Referring now to <FIG>, a side cross-sectional view of a component <NUM> such as but not limited to a sensor is set forth within a ceiling <NUM>. Of course, the sensor may be located within an opening of the wall <NUM> as well. The component <NUM> is coupled to or has body <NUM> to which one or more spring retention assemblies <NUM> are coupled. The body <NUM> has flanges <NUM> formed therein or coupled thereto. The flanges <NUM> are forced against the outer surface 1042A by the action of the spring retention assemblies <NUM> that provide a force against the inner surface 1042B of the ceiling <NUM>.

As illustrated the component <NUM> is a sensing component. The sensing component <NUM> may have a power line <NUM> coupled thereto for controlling a device or power the component <NUM> or both. The component <NUM> may also have an antenna <NUM> for wirelessly communicating to another device. The component <NUM> may be powered by a battery. Examples of a sensing component include but are not limited to a camera, a smoke detector, a vapor detector, a gas detector, a motion detector, a glass breakage detector, an alarm, and a thermal detector.

Referring now to <FIG>, a side cross-sectional view of a speaker <NUM> is set forth within a ceiling <NUM>. The speaker <NUM> may also be located within the wall <NUM> in a similar manner. The speaker <NUM> is coupled to or has body <NUM> to which one or more spring retention assemblies <NUM> are coupled. The body <NUM> has flanges <NUM> formed therein or coupled thereto. The flanges <NUM> are forced against the outer surface 1042A by the action of the spring retention assemblies <NUM> that provide a force against the inner surface 1042B of the wall <NUM>. The speaker <NUM> may be wired with a wire <NUM> or wirelessly connected through an antenna <NUM>.

Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those who are skilled in the art.

Terms such as "lighting," or light source as used herein, are intended to encompass essentially any type of lighting that a device produces light by processing of electrical power to generate the light. An artificial lighting device, for example, may take the form of a lamp, light fixture, or other luminaire that incorporates a light source, where the light source by itself contains no intelligence or communication capability, such as one or more LEDs or the like, or a lamp (e.g., "regular light bulbs") of any suitable type. The illumination light output of an artificial illumination type luminaire, for example, may have an intensity and/or other characteristic(s) that satisfy an industry acceptable performance standard for a general lighting application. Suitable light generation sources include various conventional lamps, such as incandescent, fluorescent or halide lamps; one or more light emitting diodes (LEDs) of various types, such as planar LEDs, micro LEDs, micro organic LEDs, LED on gallium nitride (GaN) substrates, micro nanowire or nanorod LEDs, photo pumped quantum dot (QD) LEDs, micro plasmonic LED, micro resonant-cavity (RC) LEDs, and micro photonic crystal LEDs; as well as other sources such as micro super luminescent diodes (SLD) and micro laser diodes. Of course, these light generation technologies are given by way of non-limiting examples, and other light generation technologies may be used.

The term "coupled" as used herein refers to any logical, optical, physical or electrical connection, link or the like by which signals, or light produced or supplied by one system element are imparted to another coupled element. Unless described otherwise, coupled elements or devices are not necessarily directly connected to one another and may be separated by intermediate components, elements or communication media that may modify, manipulate or carry the light or signals.

Spatially relative terms, such as "inner," "outer," "beneath," "below," "lower," "above," "upper," "downward," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures.

Claim 1:
A recessed luminaire assembly (<NUM>) for an opening (<NUM>) through a member (<NUM>) comprising:
a body (<NUM>);
a light source (<NUM>) coupled to the body (<NUM>); and
a first spring retention assembly (<NUM>) coupled to the body (<NUM>), said first spring retention assembly (<NUM>) comprising a first coil spring (<NUM>) at least partially disposed within a first spring housing (<NUM>), said first coil spring (<NUM>) having a first end (<NUM>) extending through the first spring housing (<NUM>) and coupled to the body (<NUM>), said first coil spring (<NUM>) extendable from and retractable into the first spring housing (<NUM>), wherein
the first spring housing (<NUM>) comprises a first portion (<NUM>) and a second portion (<NUM>) that together form an outer wall (<NUM>) and a first end wall (<NUM>) and a second end wall (<NUM>), said outer wall (<NUM>) comprising a slot (<NUM>), said first end (<NUM>) extending from the slot (<NUM>); wherein
the first portion (<NUM>) comprises the first end wall (<NUM>) and an inner wall receiver extending from the first end wall (<NUM>) and wherein the second portion comprises the second end wall (<NUM>) and a retainer (244A, 244B) extending from the second end wall (<NUM>), characterized in that
the outer wall (<NUM>) is an outer annular wall (<NUM>), and wherein
the first end wall (<NUM>) comprises a first O-ring channel (<NUM>) and a first O-ring (<NUM>) disposed therein, and the second end wall (<NUM>) comprises a second O-ring channel (<NUM>) having a second O-ring (<NUM>) disposed therein.