GB2614109A

GB2614109A - Base for a luminaire

Info

Publication number: GB2614109A
Application number: GB2210064.8A
Authority: GB
Inventors: Leck Alexander
Original assignee: John Cullen Lighting Ltd
Current assignee: John Cullen Lighting Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-06-28
Anticipated expiration: 2042-07-08
Also published as: GB2614109B; GB202210064D0

Abstract

The base 100 for a luminaire (e.g., a downlighter, wallwash light or uplighter), comprises an optic component 120 with a protrusion 122, and an outer component 140 with a hole 146 located in a groove 149. When the optic component is inserted into the outer component the protrusion fits into and moves along the groove. Inserting a retaining member (e.g., grub screw 170-1) into the hole blocks passage of the protrusion along the groove. The base may include a mounting component 110 for mounting a luminaire head, with a recess for the protrusion. There may be a single groove and/or protrusion, or a plurality of protrusions, preferably arranged asymmetrically. There may be a louvre 130, optionally arranged to fit in a recess 147 of the outer component. The outer component may include a baffle and/or a bezel component, with respective holes for the retaining member. There may be coil springs 160-1, 160-2 to hold the base in a recess.

Description

Base for a luminaire

Field of the disclosure

The present disclosure relates to a base for a luminaire, to a luminaire comprising the base and to kits of parts for the base and the luminaire.

Background of the disclosure

For the purposes of lighting a room, or a building, it is desirable to use luminaires that are simple to manufacture, simple to install, simple to adjust, versatile and effective in providing a desired lighting output. Conventional luminaires typically fail to provide such features.

Summary of the disclosure

Aspects and embodiments of the present invention are set out in the appended claims. These and other aspects and embodiments of the invention are also described herein.

According to an aspect of the present disclosure, there is described a base for a luminaire, the base comprising: an optic component comprising a protrusion (e.g. an optic component arranged to direct and/or filter light passing through the luminaire base); an outer component comprising: a groove; and a hole for a retaining structure, the hole being located in the groove; wherein the protrusion of the optic component is arranged to fit into, and move along, the groove of the outer component so that the optic component can be inserted into the outer component; and wherein the hole is arranged so that, when the retaining structure is inserted into the hole, the retaining structure blocks the passage of the protrusion along the groove thereby enabling the optic component to be retained within the outer component by the insertion of the retaining structure into the hole.

The interaction between the protrusion of the optic component and the groove of the outer component ensures that these components are correctly oriented, with the retaining member then connecting the components together in this correct orientation.

Preferably, the base further comprises a mounting component, the mounting component comprising: a structure for mounting a luminaire head; and a recess for receiving the protrusion of the optic component.

According to an aspect of the present disclosure, there is described a base for a luminaire, the base comprising: an optic component comprising a protrusion; a mounting component comprising: a structure for mounting a luminaire head; and a recess for receiving the protrusion of the optic component; and an outer component comprising: a groove; and a hole for a retaining member, the hole being located in the groove; wherein the protrusion of the -2 -optic component is arranged to fit into, and move along, the groove of the outer component so that the optic component can be inserted into the outer component; and wherein the hole is arranged so that, when the retaining member is inserted into the hole, the retaining member blocks the passage of the protrusion along the groove thereby enabling the optic component and the mounting component to be retained within the first component by the insertion of the retaining member into the hole.

Preferably, the outer component comprises a single groove. Preferably, the optic component comprises a single protrusion. Preferably, the mounting component comprises a single recess.

Preferably, the recess comprises a hole.

Preferably, the retaining member comprises a screw. Preferably, the retaining member comprises a grub screw.

Preferably, the base comprises a further retaining structure arranged to pinch the optic component so as to hold the optic component in place within the outer component. Preferably, the further retaining structure is arranged on the opposite side of the base to the retaining structure.

Preferably, the luminaire base comprises the retaining member. Preferably, the retaining member is arranged to fit within and/or pass through the hole so as to retain the optic component in the outer component.

Preferably, the outer component comprises a baffle component, wherein the baffle component comprises a hole for the retaining member. Preferably, the baffle component is arranged to block the emission of light in one or more directions.

Preferably, the outer component comprises a bezel component, wherein the bezel component comprises a bezel, and wherein the bezel component comprises a hole for the retaining 25 member.

Preferably, the baffle component is arranged to fit within the bezel component.

Preferably, the hole of the bezel component is arranged to align with the hole of the baffle component.

Preferably, the hole of the bezel component is arranged to align with the hole of the baffle component at only a single relative orientation of the baffle component and the bezel component. -3 -

Preferably, one of the bezel component and the baffle component comprises a ledge and the other of the bezel and the baffle component comprises a cut-out so that the bezel component and the baffle component can be placed together only at a single orientation at which the ledge is aligned with the cut-out.

Preferably, the method comprises one or more coil springs arranged to hold the base in place when the base is located in a recess. Preferably, the coil springs are attached to the outer component. Preferably, the coil springs are attached to the outer component using coil spring screws.

Preferably, the optic component comprises one or more of: an opaque portion arranged to block light; one or more holes to enable the passage of light in a desired direction; a blocking component arranged to reduce the emission of light in a direction; a reflective component arranged to reflect light in a desired direction; and a lens.

Optionally, the optic component comprises a plurality of protrusions. Preferably, the protrusions are arranged asymmetrically about the optic component.

Preferably, the luminaire base comprises a louvre, wherein the louvre is arranged to reduce and/or prevent the emission of light from the luminaire base in one or more directions. Preferably, the louvre is arranged to reduce the emission of light along a first axis and to allow the emission of light along a second axis, wherein the first axis and the second axis are perpendicular.

According to another aspect of the present disclosure, there is described a base for a luminaire, the base comprising: an optic component; a mounting component comprising a structure for mounting a luminaire head; and a louvre, wherein the louvre is arranged to reduce and/or prevent the emission of light from the luminaire base in one or more directions, preferably wherein the louvre is arranged to reduce the emission of light along a first axis and to allow the emission of light along a second axis, wherein the first axis and the second axis are perpendicular.

Preferably, the outer component comprises a recess for a/the louvre. Preferably, the outer component comprises a ledge with a recess, wherein the louvre is arranged to fit into the recess of the ledge.

Preferably, the louvre comprises a fabric.

Preferably, the louvre comprises a plurality of, optionally angled, slats arranged to reduce the emission of light in a first direction. -4 -

Preferably, the louvre is arranged to be retained between the optic component and the outer component.

Preferably, the louvre is arranged to abut a/the retaining member.

Preferably, the base comprises a further retaining member arranged to pinch the optic component so as to hold the optic component in place within the outer component. Preferably, the further retaining member is arranged on the opposite side of the base to the retaining member.

According to another aspect of the present disclosure, there is described a luminaire comprising the base of any preceding claim and a luminaire head. Preferably, the luminaire head comprises a lighting element and/or a heat sink.

Preferably, the luminaire comprises one or more of a wallwash light, a downlighter, and an uplighter.

According to another aspect of the present disclosure, there is described a kit of parts comprising the aforesaid luminaire base and a plurality of luminaire heads. Preferably, each of the luminaire heads comprises a different lighting element.

According to another aspect of the present disclosure, there is described a kit of parts for a base of a luminaire, the kit of parts comprising a: an optic component comprising a protrusion; and an outer component comprising: a groove; and a hole for a retaining member, the hole being located in the groove; wherein the protrusion of the optic component is arranged to fit into, and move along, the groove of the outer component so that the optic component can be inserted into the outer component; and wherein the hole is arranged so that, when the retaining member is inserted into the hole, the retaining member blocks the passage of the protrusion along the groove thereby enabling the optic component and the mounting component to be retained within the outer component by the insertion of the retaining member into the hole.

Preferably, the kit of parts comprises a mounting component, the mounting component comprising: a structure for mounting a luminaire head; and a recess for receiving the protrusion of the optic component.

Preferably, the kit of parts comprises the retaining member.

According to another aspect of the present disclosure, there is described an installation comprising one or more of: the aforesaid base; and the aforesaid luminaire. Preferably, the installation is an installation in a building or vehicle. -5 -

According to another aspect of the present disclosure, there is described a method of operating the aforesaid luminaire, preferably a computer-implemented method.

According to another aspect of the present disclosure, there is described a system comprising: one or more of the aforesaid luminaires; and a computer device arranged to control the luminaires.

According to a further aspect, there is provided a computer program product comprising computer implementable instructions for causing a programmable computer device to carry out the method as described.

The invention extends to methods and/or apparatus substantially as herein described with reference to the accompanying drawings.

Any apparatus feature as described herein may also be provided as a method feature, and vice versa.

Any feature in one aspect of the invention may be applied to other aspects of the invention, in any appropriate combination. In particular, method aspects may be applied to apparatus aspects, and vice versa. Furthermore, any, some and/or all features in one aspect can be applied to any, some and/or all features in any other aspect, in any appropriate combination.

It should also be appreciated that particular combinations of the various features described and defined in any aspects of the invention can be implemented and/or supplied and/or used independently.

The term 'comprising' as used in this specification and claims preferably means 'consisting at least in part of'. When interpreting statements in this specification and claims which include the term 'comprising', other features besides the features prefaced by this term in each statement can also be present. Related terms such as 'comprise' and 'comprised' are to be interpreted in a similar manner.

Brief Description of the Figures

One or more aspects will now be described, by way of example only and with reference to the accompanying drawings having like-reference numerals, in which: Figures la and lb show, respectively, an assembled view and a disassembled view of a luminaire.

Figure 2 shows a view of the luminaire from below.

Figure 3 shows a view of the luminaire when installed. -6 -

Figures 4a and 4b show exploded views of a base of the luminaire. Detailed Description Referring to Figures la, 1b, and 2, there are shown assembled and disassembled views of a luminaire. The luminaire comprises a luminaire base 100 (e.g. a lamp holder) and a luminaire head 200 (e.g. a lamp).

The luminaire head 200 is inserted into the luminaire base 100 so that a lighting element of the luminaire head (e.g. a light emitting diode) is able to output light through the luminaire base. The luminaire base typically comprises an opaque section 102 that is arranged to block the passage of light through a section of the lighting element and an emitting section that is arranged to allow the passage of light. This emitting section may, for example, comprise a transparent or translucent material. Equally, the emitting section may be an open section (with no componentry that could block or reduce the emission of light). The luminaire base can then be used to provide a directional light output without requiring a specialised luminaire head.

Typically, the luminaire head 200 comprises a heat sink that is arranged to absorb the heat produced by a lighting element. The luminaire head may also comprise a power input that is arranged to supply power to the lighting element (e.g. from a battery or from a mains power source). It will be appreciated that such components could equally be provided in the luminaire base 100.

Typically, the luminaire is used as a downlighter and/or an uplighter and/or a wall lighter (e.g. a wallwasher light). The luminaire is typically used to illuminate a wall, where the luminaire is oriented so that the opaque section 102 blocks the passage of light towards the centre of a room. Light is then able to pass through the emitting section so as to cast light along a wall. This provides a pleasing environment without the risk of glare.

It will be appreciated that other methods of directing, blocking, and/or reflecting light may be used. For example, a luminaire head 200 may be used that has an adjustable lighting element so that the direction of the light output by the luminaire head is adjustable.

Referring to Figure 3, there is shown a view of the luminaire when installed. The luminaire may be installed in a recess of a panel 300 (e.g. a ceiling panel) so that light is emitted from the recess. This enables the luminaire head 200 to be located behind the panel so that it is obscured from view.

To ensure accurate positioning of the luminaire in the recess, the luminaire base 100 typically comprises a first coil spring 160-1 and a second coil spring 160-2. Such a luminaire can be placed in the recess 300 so that a bezel 104 of the luminaire rests against an outer surface of the panel 300 and the coil springs rest against an inner surface of the panel. The coil springs exert a force on the panel that acts to push the luminaire away from the panel (e.g. to move the luminaire into a ceiling); the bezel rests on the outer surface of the panel and resists the force of the coil springs to keep the luminaire in place. With this arrangement, the bezel rests on the outer surface of the panel without a visible gap between the bezel and the panel.

The coil springs are typically arranged (e.g. sized) so that when a user wishes to remove the luminaire from the panel 300, the user is able to pull on the luminaire such that the coil springs 160-1, 160-2 uncoil and the luminaire can be removed. Therefore, the coil springs enable the luminaire to be held in a desirable position against the panel 300 while still enabling the luminaire to be removed (or installed) without the need for tools.

It will be appreciated that the use of the coil springs 160-1, 160-2 is optional. Alternative structures may be used to hold the luminaire in place when it is installed (e.g. an adhesive, a retaining pin, or screws).

Referring to Figures 4a and 4b, there are shown exploded views of the luminaire base 100.

Figure 4b shows a view in which the components of the luminaire are rotated as compared to those of Figure 4a.

The luminaire base 100 comprises: a mounting component 110; an optic component 120; a mesh component 130 (or louvre 130); a baffle component 140; a bezel component 150; and the coil springs 160-1, 160-2.

The mounting component 110 comprises an attachment structure 112 for mounting the luminaire head 200 onto the luminaire base 100. This mounting structure may, for example, comprise a plurality of protrusions that are arranged to retain the luminaire head. With such a structure, the luminaire head can be located on the mounting component before being rotated so that a portion of the luminaire head is located beneath the protrusions (and thus the luminaire base and the luminaire head cannot be pulled apart). It will be appreciated that numerous mounting structures are known in the art.

Typically, the mounting component 110 is formed from a black material and/or a low-glare material to improve the visual comfort of users near the light. Similarly, any of the other components of the luminaire may comprise anti-glare material to improve visual comfort.

Typically, the attachment structure 112 is arranged so that the luminaire head 200 can be mounted without the need for tools. This simplifies installation and repair of the luminaire.

In some embodiments, a kit of parts is provided that comprises a plurality of luminaire heads (e.g. with different lighting elements) so that a user is able to select a desired luminaire head -8 -and to mount this desired luminaire head to the mounting component 110. This increases the versatility of the luminaire base 100.

The optic component 120 is arranged to direct light from a lighting element through the remainder of the luminaire base 100 so that it can pass through the emitting section (the lighting element is typically located in the luminaire head 200). For example, the optic component may comprise a series of holes through which light can pass. In some embodiments, the optic component comprises a blocking or reflective element that is arranged to prevent the passage of light in an undesired direction and/or to reflect light in the intended direction.

In some embodiments, the optic component 120 comprises a lens (or a diffuser) that is located between the lighting element and the output of the light so that light passes through this lens before being emitted from the luminaire. The lens may, for example, comprise a translucent lens that diffuses light emitted by the lighting element, and/or a coloured lens.

In some embodiments, the optic component 120 comprises an opaque portion that is arranged to block the passage of light in a certain direction. The opaque portion is typically perpendicular to the blocking or reflective element (so that the opaque portion may be used to channel light through holes in the opaque element in the direction of emission of light from the luminaire whereas the reflective element may be used to reflect light perpendicular to the direction of emission of light from the luminaire).

The optic component 120 comprises a protrusion 122 that is arranged to fit within a recess 114 (e.g. a hole) of the mounting component 110. This enables the optic component part to be attached to the inner part. Furthermore, the use of a protrusion and a recess ensures that the optic component and the inner part can only be attached at a desired orientation.

The louvre 130 comprises a plurality of (optionally angled) slats that are arranged to block the passage of light in at least one direction. Typically, when the luminaire is installed in a ceiling, the louvre is arranged to block the passage of light parallel to a wall (but to allow the passage of light perpendicular to the wall. Therefore, the louvre is useable to ensure that a wall is well lit, while reducing or eliminating glare when a user is located in line with the luminaire along that wall.

More specifically, the louvre 130 is arranged to reduce (and/or prevent) the emission of light from the luminaire in one or more direction, e.g. along a first axis, and to allow the emission of light in a different direction, e.g. along a second axis. Typically, the first axis and the second axis are perpendicular, so that the louvre enables light to pass directly towards a wall, but blocks light from passing along a wall. -9 -

Typically, the louvre 130 is formed of metal slats and/or a mesh of metal slats. More specifically, the louvre may comprise interwoven strands of flat metal strips. The slats of the louvre are typically arranged in parallel so as to block the emission of light in a particular direction along the entire diameter of the luminaire. In some embodiments, the slats may be arranged in a curved pattern so as to block the emission of light from the luminaire towards a specific point in a room. In some embodiments, the louvre comprises a fabric mesh.

The optic component 120, the louvre 130, and the baffle component 140 are arranged (e.g. sized) so that when the luminaire is assembled the louvre is held in place between the optic component and the baffle component. Typically, the baffle component comprises a recess 147 that is arranged to receive the louvre. In the embodiment of the figures, the baffle component comprises a ledge around its inner circumference and this ledge comprises a recess into which the louvre is arranged to fit. The recess ensures the correct placement of the louvre during assembly and results in the louvre being held in the recess between the optic component and the baffle component when the luminaire is assembled.

The optic component 120 is arranged to fit snugly within the baffle component 140 so that at certain orientations the insertion of the optic component into the baffle component is prevented, or resisted, by the protrusion 122 of the optic component abutting a perimeter of the baffle component. The baffle component comprises a groove 149 in the perimeter, which groove is arranged to receive the protrusion 122 of the optic component 120 so that the optic component can be inserted into the baffle component at a single orientation.

The protrusion 122 of the optic component 120 thus ensures that the optic component is correctly oriented in the mounting component 110 (by interacting with the recess 114 of the mounting component) and further ensures that both the optic component and the mounting component are correctly oriented in the baffle component 140 (by interacting with the recess 149 of the baffle component).

The baffle component 140 further comprises a (e.g. screw) hole 146 in the groove 149, which hole is arranged to receive a first screw 170-1. The hole is located in the groove such that, when the luminaire is assembled, the protrusion 122 of the optic component 120 is held in place by the first screw. More specifically, the first screw protrudes through the screw hole so as to form a barrier to the removal of the protrusion of the optic component from the groove 149. The screw may also be used to hold the louvre 130 in place, where the louvre may comprise a hole for receiving the screw and/or where the screw may abut the louvre to hold the louvre in place. In some embodiments, the screw is arranged to prevent axial movement of the louvre into and/or out of the luminaire base (e.g. where the louvre may be held between the screw and an inner surface of the bezel of the bezel component 150).

It will be appreciated that such a barrier could be provided by a different structure, such as a retaining pin so that more generally the baffle component 140 comprises a hole for receiving a retaining member. Where a screw is used, the screw is able to provide a retaining member for securing the optic component 120 (and the mounting component 110) in the baffle component and the screw is also able to connect (e.g. attach) the baffle component to the bezel component 150.

In this regard, the bezel component 150 comprises a screw hole 152-1 that corresponds to the screw hole 146 of the baffle component so that in order to assemble to luminaire the screw holes 152-1, 146 can be aligned and the first screw 170-1 is then able to pass through the screw holes 152-1, 146 in order to both connect the baffle component and the bezel component and hold the optic component 120 and the mounting component 110 in place.

Typically, the baffle component 140 comprises a further screw hole 142 that is aligned with a further screw hole 152-2 of the bezel component 150 so that a second screw 170-2 can be placed through these components to securely hold together each of the components of the luminaire. The screw holes 146, 152-1 and the further screw holes 142, 152-2 are typically arranged on opposing sides of the baffle component and the bezel component so that each side of the luminaire base is held in place by one of the screws 170-1, 170-2.

The screw hole 146 is typically arranged so that the first screw 170-1 can be passed through the hole so as to prevent the removal of the protrusion 122 of the optic component 120 from the groove 149 of the baffle component 140 (by providing a blockage in the groove). The further screw hole 152-1 is typically arranged so that the second screw 170-2 pinches the baffle component and/or the optic component 120 so as to hold the optic component in place within the baffle component and the bezel component 150 (e.g. via friction caused by the contact between the second screw and the optic component).

To ensure that the baffle component 140 and the bezel component 150 are located in the right orientation (particularly in embodiments with the further screw holes 142, 152-2), the bezel component typically comprises a ledge 156 that is arranged to interact with a cut-out 148 of the baffle component. More specifically, the ledge prevents the baffle component from being inserted into the bezel component unless the ledge of the bezel component is aligned with the cut-out if the baffle component. Equally, the baffle component may comprise the ledge with the bezel component comprising the cut-out.

The baffle component 140 and the bezel component 150 are connected via the first screw 170-1 and the second screw 170-2. These screws are typically grub screws so that the baffle component and the bezel component can be connected without the need for further componentry. The use of grub screws enables the baffle component and the bezel component to be connected and unconnected in a straightforward manner with only simple tools.

The grub screws 170-1, 170-2 (or more generally the retaining member for connecting the baffle component 140 and the bezel component 150) may be arranged to not protrude beyond the surface bezel component. This reduces the size of a cut-out required so that the luminaire can be placed into the panel 300.

The baffle component 140 is typically arranged to fit inside of the bezel component 150. This enables the baffle component to comprise a low glare, and/or reflective, material while the bezel component provides a decorative finish and/or a surface that simplifies the placement of the luminaire into the panel.

The coil springs 160-1, 160-2 are connected to the bezel component 150 via coil spring screws 164-1, 164-2 that pass through spring holes 162-1, 162-2 of the coil springs, spring holes 1541, 154-2 of the bezel component, and spring holes 144 of the baffle component 140. In some embodiments, the spring holes of the baffle component do not extend through the walls of the baffle component so that the coil spring screws do not pass into the interior of the baffle component. Each of the spring holes may be threaded so that they hold the coil spring screws in place. Similarly, any holes mentioned elsewhere in this document may comprise threaded holes (e.g. the screw holes 146, 152-1).

It will be appreciated that other fixing structures may be used to attach the coil springs to the remainder of the luminaire.

The bezel component 150 comprises a bezel 151 that, as described with reference to Figure 3, holds the light in place in a panel. The bezel component also comprises the opaque section 102 and the emitting section.

The baffle component 140 and the bezel component 150 together prevent the spreading of light in unintended directions and direct light from the luminaire in a desired direction (through the emitting section).

The optic component 120 may comprise a plurality of protrusions 122, with the baffle component 140 comprising a plurality of grooves 149. This enables the use of multiple retaining members so as to ensure a tight fit between the components regardless of the size of the components. The use of multiple retaining member also provides redundancy and enables the use of components with greater dimensional tolerances. Where a plurality of protrusions and/or grooves are provided, the protrusions and/or grooves may be arranged symmetrically about the optic component or the baffle component; however, this can result in a plurality of assembly orientations being possible. Therefore, the protrusions and/or the -12 -grooves may be arranged asymmetrically about the optic component and the baffle component so that there is only a single orientation at which assembly of the components of the luminaire base 100 is possible.

Alternatives and Modifications Various other modifications will be apparent to those skilled in the art. It will be understood that the present invention has been described above purely by way of example, and modifications of detail can be made within the scope of the invention.

For example, in some embodiments the luminaire base comprises a waterproofing component such as an o-ring or a gasket. Such a waterproofing component may be located adjacent the optic component 120. Typically, the waterproofing component is compressible (so as to form a seal) and is held in place by being compressed between the optic component and the mounting component 110. In some embodiments, the waterproofing component comprises a recess that is arranged to receive the protrusion so as to hold the waterproofing component in place (e.g. the protrusion 122 may pass through the recess of the waterproofing component before passing through the recess 114 of the mounting component.

In some embodiments, the baffle component 140 and the bezel component 150 are combined, where this combined component comprises the groove 149 and the screw holes 146, 152-1.

More generally, the luminaire base 100 may comprise a first component (or an 'outer component) that is one or more of the baffle component 140 and the bezel component 150, where the optic component 120 and the mounting component 110 are connected to this first component using (one or more of) the screws 170-1, 170-2.

Similarly, the optic component 120 and the mounting component 110 may be combined in a single component that both directs the light from a lighting element and enables the luminaire base 100 to be attached to the luminaire head 200.

More generally, the luminaire base 100 may comprise a second component (or an 'inner component) that is one or more of the mounting component 110 and the optic component 120, where the baffle component 140, the bezel component 150, and/or the first component are connected to this second component using (one or more of) the screws 170-1, 170-2.

Each feature disclosed in the description, and (where appropriate) the claims and drawings may be provided independently or in any appropriate combination.

Reference numerals appearing in the claims are by way of illustration only and shall have no limiting effect on the scope of the claims.

Claims

Claims 1. A base for a luminaire, the base comprising: an optic component comprising a protrusion; and an outer component comprising: a groove; and a hole for a retaining member, the hole being located in the groove; wherein the protrusion of the optic component is arranged to fit into, and move along, the groove of the outer component so that the optic component can be inserted into the outer component; and wherein the hole is arranged so that, when the retaining member is inserted into the hole, the retaining member blocks the passage of the protrusion along the groove thereby enabling the optic component to be retained within the outer component by the insertion of the retaining member into the hole.
2. The base of any preceding claim, further comprising a mounting component, the mounting component comprising: a structure for mounting a luminaire head; and a recess for receiving the protrusion of the optic component.
3. The base of any preceding claim, wherein: the outer component comprises a single groove; and/or the optic component comprises a single protrusion; and/or the mounting component comprises a single recess.
4. The base of any preceding claim, comprising a louvre, wherein the louvre is arranged to reduce and/or prevent the emission of light from the luminaire base in one or more directions, preferably wherein: the louvre comprises a plurality of, optionally angled, slats arranged to reduce the emission of light in a first direction; and/or the louvre is arranged to reduce the emission of light along a first axis and to allow the emission of light along a second axis, wherein the first axis and the second axis are perpendicular.
5. The base of claim 4, wherein the outer component comprises a recess for the louvre, preferably wherein the outer component comprises a ledge with a recess, wherein the louvre is arranged to fit into the recess of the ledge.
6 The base of claim 4 or 5, wherein: the louvre is arranged to be retained between the optic component and the outer component; and/or the louvre is arranged to abut a/the retaining member.
7. The base of any preceding claim, wherein the retaining member comprises a screw, preferably a grub screw.
8. The base of any preceding claim, comprising a further retaining member arranged to pinch the optic component so as to hold the optic component in place within the outer component, preferably wherein the further retaining member is arranged on the opposite side of the base to the retaining member.
9. The base of any preceding claim, comprising the retaining member, preferably wherein the retaining member is arranged to fit within the hole so as to retain the optic component in the outer component.
10. The base of any preceding claim, wherein the outer component comprises a baffle component, wherein the baffle component comprises a hole for the retaining member, preferably wherein the baffle component is arranged to block the emission of light in one or more directions.
11. The base of any preceding claim, wherein the outer component comprises a bezel component, wherein the bezel component comprises a bezel, and wherein the bezel component comprises a hole for the retaining member.
12. The base of claim 11 when dependent on claim 10, wherein the baffle component is arranged to fit within the bezel component.
13. The base of claim 11 or 12 when dependent on claim 10, wherein the hole of the bezel component is arranged to align with the hole of the baffle component.
14. The base of claim 13, wherein: the hole of the bezel component is arranged to align with the hole of the baffle component at only a single relative orientation of the baffle component and the bezel component, and/or one of the bezel component and the baffle component comprises a ledge and the other of the bezel and the baffle component comprises a cut-out so that the bezel component and the baffle component can be placed together only at a single orientation at which the ledge is aligned with the cut-out.
15. The base of any preceding claim, comprising one or more coil springs arranged to hold the base in place when the base is located in a recess, preferably wherein the coil springs are attached to the outer component, more preferably wherein the coil springs are attached to the outer component using coil spring screws.
16. The base of any preceding claim, wherein: the optic component is arranged to direct and/or filter light passing through the luminaire base and/or the optic component comprises one or more of: an opaque portion arranged to block light; one or more holes to enable the passage of light in a desired direction; a blocking component arranged to reduce the emission of light in a direction; a reflective component arranged to reflect light in a desired direction; and a lens.
17. The base of any preceding claim, wherein the optic component comprises a plurality of protrusions, preferably wherein the protrusions are arranged asymmetrically about the optic component.
18. A luminaire comprising the base of any preceding claim and a luminaire head, preferably wherein the luminaire head comprises a lighting element and/or a heat sink.
19. The luminaire of claim 18, being one or more of a wallwash light, a downlighter, and an uplighter.
20. A kit of parts comprising the base of any of claims 1 to 17 and a plurality of luminaire heads, preferably wherein each of the luminaire heads comprises a different lighting element.
21 A kit of parts for a base of a luminaire, the kit of parts comprising a: an optic component comprising a protrusion; and an outer component comprising: a groove; and a hole for a retaining member, the hole being located in the groove; wherein the protrusion of the optic component is arranged to fit into, and move along, the groove of the outer component so that the optic component can be inserted into the outer component; and wherein the hole is arranged so that, when the retaining member is inserted into the hole, the retaining member blocks the passage of the protrusion along the groove thereby enabling the optic component and the mounting component to be retained within the outer component by the insertion of the retaining member into the hole.
22. The kit of parts of claim 21, comprising one or more of: a mounting component, the mounting component comprising: a structure for mounting a luminaire head; and a recess for receiving the protrusion of the optic component; and the retaining member.
23. A method of operating the luminaire of claim 18 or 19, preferably a computer-implemented method.
24. A system comprising: one or more luminaires according to claim 18 or 19; and a computer device arranged to control the luminaires.
25. An installation comprising one or more of: the base of any of claims 1 to 17; and the luminaire of claim 18 or 19, preferably wherein the installation is an installation in a building or vehicle.