EP2267356A1

EP2267356A1 - Light fitting arrangement

Info

Publication number: EP2267356A1
Application number: EP10166225A
Authority: EP
Inventors: Jagdish Tailor
Original assignee: Taison Lighting Ltd
Current assignee: Taison Lighting Ltd
Priority date: 2009-06-26
Filing date: 2010-06-16
Publication date: 2010-12-29
Anticipated expiration: 2030-06-16
Also published as: EP2267356B1; GB0911076D0

Abstract

The present invention relates to a light fitting arrangement (10) including which includes a first (110) and second reflector housing (110), the first reflector housing being pivotally movable relative to the second reflector housing. The reflector housings are pivotably attached along pivot axes (130) along their elongate edges (120). The light fitting (10) can be assembled by slidably engaging adjacent reflector housings along their respective complementary attachment portions. This arrangement allows a light fitting to be selectively adjusted for optimal distribution of light across an area.

Description

Field of the Invention

The present invention relates to light fittings. In particular, the invention relates to light fittings with linear reflector housings. More particularly, the invention relates to light fittings for tubular florescent lamps. The invention also relates to a reflector housing, a cable housing, a method of manufacturing the reflector housing, a method of manufacturing the light fitting arrangement, and a method of lighting an area.

Description of the Background Art

There is a widespread need for light fittings which provide a desired level of illumination across a wide area. There is a particular need, in such as factories, warehouses, shops, and the like, to minimise the number of light fittings whilst maintaining the desired level of illumination. Moreover, there is a requirement for an even distribution of light.
At present, light fittings in common use include standard florescent light fittings having multiple fixed reflector housings, where each reflector housing supports one or more regular tubular florescent lamps. An example of such fittings is the T2 SH Surface Florescent Range as supplied by the Applicant (Taison Lighting Limited). Such lamps are typically installed in such as sports halls, but are also applicable to factories, warehouses, and shops. A problem with such light fittings is that the area of illumination is relatively narrow, particularly for an even distribution of light.
Florescent light fittings are available which are similar to the standard florescent light fittings described above but with the outermost reflectors tilted outwards at certain fixed angles to allow illumination across a wider area. However, a problem is that these have to be custom built to a particular specification before installation, which leads to greater manufacturing costs. Sometimes, even after installation, such light fittings are still inadequate, particularly where minor calculation errors occur in a lighting design scheme, or where unforeseeable problems arise rendering the light fitting specification sub-optimal for the conditions.
Another problem inherent with light fittings of the prior art is that their reflector housings are relatively costly to produce owing to the multistep manufacturing process involved. For instance, firstly a housing is prepared without a reflector material, and later the reflector material has to be applied in a separate step.
It is an object of the present invention to solve at least one of the problems of the prior art.

Disclosure of the Invention

According to a first aspect of the present invention there is provided a light fitting arrangement including a first and a second reflector housing the first reflector housing being pivotally movable relative to the second reflector housing.
In use the pivotable movement is preferably arranged to be about a first pivot axis.
An advantage of the present invention is that the reflector housings may provide a light fitting arrangement which is selectively adjustable to adjust a distribution of light. Moreover, such light fittings can be adjusted on site or in position to fine tune the distribution of light. This alleviates the need for custom manufactured fixed light fittings. Preferably the light fitting is for lamp(s) which emit visible light. Preferably at least 50% of the light emitted from the lamp(s) used with the present invention has a wavelength within the visible spectrum, preferably at least 60%, more preferably at least 70%, and most preferably at least 80%.
The second reflector housing may be substantially identical to the first reflector housing.
The first reflector housing may be pivotally attached to the second reflector housing and may be directly so attached.
Preferably a first pivotable attachment portion of the first reflector housing is arranged in use to engage a second pivotable attachment portion of the second reflector housing. Preferably the second pivotable attachment portion is complementary to the first pivotable attachment portion. The first and second attachment portions may be arranged to slidably engage each other.
The arrangement may comprise a third reflector housing that is pivotally movable relative to at least one of the first or second reflector housings, which may be about a second pivot axis. The first and second pivot axes may be substantially parallel to each other.
A reflector housing may comprise a first and a second pivotable attachment portion. Preferably the first is complimentary to the second, as with the pivotable attachment portions of adjacent reflector housings. The first pivotable attachment portion of one reflector housing may be arranged to engage the second pivotable attachment portion of another (adjacent) reflector housing. Preferably an attachment portion fits inside an adjacent attachment portion on one side and receives inside an attachment portion of another reflector housing on the other side, so that one may be male and the other may be female.
The first pivot axis is preferably along an edge of the reflector housing. As such the first pivotable attachment portion may be substantially along the edge of the reflector housing. The first pivot axis may be along an external edge of the reflector housing. Most preferably the attachment portion (and hence pivot axis) is at the extreme edge of the reflector housing. Preferably, where there is a second pivotable attachment portion, the corresponding second pivot axis is along a different edge of the same reflector housing, preferably an opposite edge.
The first pivotable attachment portion may be a hinge portion, preferably arranged to engage a complementary hinge portion. The hinge portion may have a substantially C-shape cross section. This allows a complementary hinge portion to fit within the C-shape cross section and pivot about within a gap in the C-shape.
The hinge portion preferably comprises a cavity (or female part). The cavity is preferably arranged to receive and accommodate the complementary hinge portion, which complementary hinge portion is preferably smaller than the cavity. The complementary hinge portion preferably comprises a male part. The male part is preferably smaller in diameter than the female part of the hinge portion. The male part is preferably linked to the reflector housing via a protruding piece (or spacer). In use, the protruding piece may abut each edge of the C-shape of the hinge portion at each extreme of the pivotable movement. The complimentary hinge portion may itself have a C-shape cross-section.
The pivotable movement allowed about the first pivot axis or second pivot axis or both is preferably greater than 3°, preferably greater than 10°, more preferably greater than 20°, and most preferably greater than 30°. Preferably the pivotable movement is less than 181°, more preferably less than 150°, most preferably less than 90°. Therefore, pivotable movement is preferably allowed within two extreme limits.
The arrangement preferably comprises an elongate reflector housing. Preferably the arrangement supports fluorescent tube lamps. Preferably each reflector housing is substantially an elongated trough. Preferably, each trough has a generally U-shaped cross-section. Preferably the or both attachment portion(s) is/are located at either or each end of the U-shape. The reflector housings preferably have a length of at least 0.3 meters (m), preferably at least 0.5m, and more preferably at least 1.0m. Preferably the reflector housings have a length less than 3.0m, more preferably less than 2.0m, most preferably less than 1.6 m.
The arrangement may comprise a lock mechanism arranged in use to selectively lock adjacent housings in a particular pivoted position. The lock mechanism may be partially or completely external to the reflector housings.
The arrangement may comprise a pivot restrictor facility to restrict pivotable movement in a given direction. The pivot restrictor facility may restrict pivotable movement beyond a certain point. The pivot restrictor may comprise the gap in the C-shape of the hinge portion, where the gap in a circle to form the C-shape defines the limits of pivotable movement. Preferably the pivot restrictor facility prevents inward pivoting that would result in the lamps pointing towards each other. The pivot restrictor facility may be partially or completely external to the reflector housings. The pivot restrictor facility may restrict pivotable movement in more than one direction.
The first pivotable attachment portion is preferably elongated, preferably substantially along the length of the reflector housing. Preferably the first pivotable attachment portion of the first reflector housing is arranged to slidably receive the second pivotable attachment portion of the second reflector housing along the length of the elongated first pivotable attachment portion. Where the hinge portion of the reflector housing is a C-shaped cross section, it may slidably receive the complementary hinge portion of the first additional reflector housing by accommodating the protruding piece in the gap within the C-shape as the two reflector housings are slid together. An advantage of such slidable attachment is that it is a very simple way to manufacture a reflector unit comprising a plurality of reflector housings. It also provides a quick and easy way to replace or repair a reflector housing.
The arrangement preferably comprises a plurality of pivotable attachment portions so as to allow a plurality of reflector housings to be linked together as a chain.
The reflector housings preferably comprise reflectors. The reflectors are preferably integral to the reflector housing. The reflector housing is preferably a single piece of extruded metal. Preferably the extruded metal comprises aluminium.
The arrangement may comprise a lamp, preferably a florescent lamp, most preferably a tubular florescent lamp. Preferably the arrangement comprises a plurality of lamps. Preferably a plurality of lamps are associated with each reflector housing. Preferably each lamp is a florescent lamp, preferably an elongated tubular florescent lamp.
Each reflector housing may comprise an end cap, preferably at each end. The end cap may comprise a curved groove, preferably two curved grooves. The curved groove(s) is preferably arranged to receive a curved plate. The end cap may comprise the curved plate. The curved plate is preferably associated with two end caps, where each end cap is associated with one of two adjacent reflector housings. Preferably the curved plate provides a bridge between the end caps of the two adjacent reflector housings. Therefore, preferably the curved plate has complementary grooves on adjacent end caps.
The pivot restrictor may comprise part of the end cap(s). The curved groove(s) and/or the curved plate(s) may be a part of the pivot restrictor, and pivotable restriction may depend on the extent to which a curved plate can move or be positioned within the curved grooves of adjacent end caps.
The lock mechanism may be comprised of the end cap(s), preferably of the curved plate and curved groove(s) of adjacent end caps. The curved plate may be selectively lockable in a certain position within the curved groove(s), preferably by a lock. The lock may comprise a screw, a plate screw hole, and a groove screw hole, such that the screw may be screwed through both the plate and groove screw holes to lock the plate in place relative to the groove. Preferably there are multiple screw holes in both the curved plate and curved groove(s) to allow the plate to be locked within the groove(s) in various pivoted positions.
In an alternative embodiment, the curved plate can move freely within its complementary grooves and pivotable movement is locked by another mechanism.
The arrangement may comprise a pivotable adjustment facility to allow selective pivotable adjustment of adjacent reflector housings. The pivotable adjustment facility may comprise the lock mechanism, described above, whereby the curved plate is selectively unlockable from within the curved grooves, e.g. by unscrewing the screw(s) - and selectively lockable in an adjusted pivoted position.
The light fitting may comprise a pivotable adjustment facility for adjusting the orientation of one or more reflector housings. This allows distribution of light to be adjusted. The pivotable adjustment facility may allow for manual adjustment. Alternatively the pivotable adjustment facility may allow for automated adjustment. Such an automated pivotable adjustment facility may also incorporate the lock mechanism. Alternatively the automated pivotable adjustment facility may comprise a motor operable to selectively pivot the one or more reflector housings. Automated adjustment may be via remote control. Such adjustability may allow the light fitting to be adjusted when installed within position, permitting fine tuning for optimal light distribution.
The light fitting arrangement may include a cable housing for housing cables for powering lights in the reflector housings. The cable housing may be pivotably attached to one or more reflector housings whereby the pivotal movement between the housings is arranged to be effected.
Preferably the cable housing comprises at least two movably linked components which are arranged in use to move with the pivotable movement of the reflector housings.
The pivot restrictor may be comprised of the cable housing. The limited movement of the cable housing may restrict pivotable movement of the reflector housings.
The lock mechanism may be comprised of the cable housing. Locking pivotable movement of the cable housing may lock pivotable movement of the reflector housings.
The cable housing may comprise a central member, and one or more outer members. Each outer member is preferably arranged in use to move relative to the central member and such movement relative to the central member preferably may effect relative pivoting of the reflector housings.
According to a second aspect of the present invention there is provided a reflector housing as described in the first aspect.
According to a third aspect of the present invention there is provided a cable housing as described in the first aspect.
According to a fourth aspect of the present invention there is provided a method of manufacturing a reflector housing comprising:

i) extruding metal to form a reflector housing.
The reflector housing is preferably the reflector housing as described in the first aspect or second aspect. The metal is preferably aluminium. Preferably the metal is a material that when extruded to form the reflector housing, provides an integral reflector. An advantage of this process is that it is easier to manufacture a reflector housing with a reflector if this is performed in a single step.
The method may further comprise forming an attachment portion along an edge of the reflector housing. Preferably the attachment portion is a pivotable attachment portion as described in any of the previous aspects. Preferably the method comprises forming an attachment portion along each of two edges of the reflector housing. Preferably both attachment portions are pivotable attachment portions. Preferably the two attachment portions are complementary, thus allowing formation of a chain of attached reflector housings.
According to a fifth aspect of the present invention there is provided a method of manufacturing a light fitting arrangement comprising:
i) sliding together two reflector housings, preferably along the length of their respective attachment portions.
Prior to step i), the method preferably comprises engaging a front end of a first attachment portion of a first reflector housing with a rear end of a second attachment portion of a second reflector housing. Sliding together may then comprise sliding the front end of the first attachment portion of the first reflector housing towards a front end of the second attachment portion of the second reflector housing. Sliding together may comprise sliding the first attachment portion inside the second attachment portion, or visa versa by sliding the second attachment portion inside the first. Preferably, sliding together culminates in engaging the front end of the first attachment portion with the front end of the second attachment portion.
The method preferably comprises pivotally connecting the two reflector housings to form the light fitting.
According to a sixth aspect of the present invention there is provided a method of manufacturing a light fitting arrangement comprising:
- pivotally connecting two reflector housings to form the light fitting..

The method may comprise sliding together the two reflector housings, as per the method of the fifth aspect, to pivotally connect the housings.
The method may further comprise capping each end of the reflector housings with an end cap. The end cap preferably comprises electrical terminals for connecting to a lamp.
The method may comprise fitting a lamp within each reflector housing.
According to a seventh aspect of the present invention there is provided a reflector housing comprising a reflector, wherein the reflector is integral to the reflector housing. The reflector housing may comprise extruded metal. The reflector housing may be a reflector housing as described in the first or second aspects.
Such reflector housings are easier to manufacture than standard reflector housings which require an additional manufacturing step to incorporate reflector material within the reflector housing.
According to an eighth aspect of the present invention there is provided a reflector housing comprising an attachment portion for slidably receiving an additional reflector housing. The reflector housing may be as described in the first, second, or seventh aspects.
According to a ninth aspect of the present invention there is provided a method of lighting an area, comprising:

installing a light fitting arrangement as herein described and pivotably adjusting the relative orientation of reflector housings to produce a desired distribution of light across the area.

Preferred features of any aspect of the present invention are also preferred features of any other aspect.

Brief Description of the Drawings

For a better understanding of the invention, and to show how embodiments of the same may be carried into effect, reference will now be made, by way of example, to the accompanying diagrammatic drawings in which:

Figure 1 is a top side perspective view of a light fitting according to an embodiment of the invention:
Figure 2 is a bottom side perspective view of the light fitting of Figure 1;
Figure 3 is an end view of the light fitting of Figure 1;
Figure 4 is an end view of the light fitting of Figure 3 in an alternative configuration;
Figure 5 is a bottom side perspective view of a reflector unit of the light fitting of Figure 1;
Figure 6 is an end cross-sectional view of a reflector housing of the reflector unit of Figure 5;
Figure 7 is an end cross-sectional view of two adjoined reflector housings of Figure 6;
Figure 8 is a top side perspective view of two reflector housings partially slid together;
Figure 9 is an end view of the reflector unit of the light fitting of Figure 1;
Figure 10 is a top side view of a cable housing for the light fitting of Figures 1 and 2;
Figure 11 is a top side perspective view of a central member of the cable housing of Figure 10; and
Figure 12 is a top side perspective view of an outer member of the cable housing of Figure 10.

Detailed Description of Exemplary Embodiments of the Invention

The exemplary embodiments of the present invention will be discussed in detail in relation to a light fitting which provides ready flexibility to adjust a distribution of visible light. However, the teachings, principles and techniques of the present invention are also applicable in other exemplary embodiments. For example, embodiments of the present invention are also applicable to other light fittings which illuminate with non-visible light, such as ultraviolet light or infrared radiation.
Figure 1 is a top side prospective view of a light fitting 10 suitable for containing lamps (not shown). The light fitting has a reflector unit 100 formed from three adjoined reflector housings 110, which in this case are U-shaped troughs 110. Light fitting 10 also has on its underside a cable housing 200 as shown in the bottom side prospective view of figure 2.
Each reflector housing 110 has two lamps and a reflector 112, which reflector 112 in this example is an integral part of the reflector housing 110, since the reflector housing is formed of reflector material (extruded aluminium). Each reflector housing 110 has two elongate edges 120. A middle reflector housing 110 has both of its edges 120 adjoined to edges 120 of adjacent reflector housings 110 via hinges (see below). The middle reflector housing 110 is pivotably attached to two outer reflector housings 110 along two pivot axes 130 defined by the edges 120 of the middle reflector housing 110. Each reflector housing 110 also has an end cap 140 at each end. The end caps 140 have electric terminals 146, each arranged to contact a tubular florescent lamp when the lamp is installed within the light fitting 10.
Figure 2 also shows a cable channel 114 for routing cables/wiring (connected to the electric terminals 146) substantially down the middle of the underside of each reflector housing 110. Each cable channel 114 is shown in Figure 2 covered by cable channel lid 114'. Cables congregate in the cable housing 200 before being connected to an external power supply. The cable housing 200 has a centre member 210 and two outer members 220 which move relative to each other to accommodate the pivotal movement of the reflector housings.
Figure 3 is an end view of the light fitting 10 in a normal (flat) configuration. Adjacent reflector housings 110 are bridged at their end caps 140 by curved plates 144 which fit within complementary curved grooves 142.
Figure 4 is an end view of the light fitting 10 in an alternative configuration, where the outer reflector housings 110 are pivoted outwards about the pivot axes 130. The cable housing 200 accommodates such outward pivoting. Such outward pivoting allows light from the lamps within each reflector housing 110 to be distributed more widely, and in some cases more evenly.
Figure 5 is a bottom side prospective view of a reflector unit 100 which forms a part of the light fitting 10 of Figures 1 and 2, and shows how the reflector housings 110 are attached to each other. The middle reflector housing 110 has a C-shaped female hinge portion 122 on one side and a smaller C-shaped male hinge portion 124 on the other side. Both of these hinge portions 122 and 124 extend along each respective edge 120 of the middle reflector housing 110. The female hinge portion 122 is attached to an adjacent reflector housing 110 via a complementary male hinge portion 124 upon the adjacent reflector housing 110. The male hinge portion 124 of the middle reflector housing 110 is attached to another adjacent reflector housing 110 via a female hinge portion 122 upon that other adjacent reflector housing 110. In this example, female and male hinge portions engage each other along their entire length.
One of the adjacent reflector housings 110 has a terminal female hinge portion 122' whereas the other adjacent reflector housing 110 has a terminal male hinge portion 124'. Figure 5 also shows the cable channels 114 with lids 114'.
Figure 6 shows an end cross-sectional view of one of the reflector housings 110. As mentioned, the reflector housing 110 has a cable channel 114, a female hinge portion 122, on one side and a male hinge portion 124 on the other side. The female hinge portion 122 has a cavity 122a and a gap 122b, both of which can receive a male hinge portion 124. The male hinge portion 124 has a male part 124a (in this case a smaller C-shape) and a spacer 124b which causes the male part 124a to protrude slightly from the edge 120.
Figure 7 shows an end cross-sectional view of two adjacent reflector housings 110. Importantly the male part 124a is shown to have been received within the cavity 122a, and the gap 122b of the female hinge portion 122a acts as a pivot restrictor allowing the reflector housings 110 to pivot relative to each other between two extreme positions, in which the spacer 124b abuts each end of the C-shape of the female hinge portion 122. Pivoting takes place about the pivot axis 130 which is where the male hinge portion 124 pivots within the female hinge portion 122.
Figure 8 shows three reflector housings 110 partially slid together along their respective edges 120 such that the female hinge portion 122 of one of the reflector housings 110 receives along its length the male hinge portion 124 of the other reflector housing 110. Two reflector housings 110 may be slid together by first inserting a front end of the male hinge portion 124 of one housing 110 into the rear end of the female hinge portion 122 of the other housing 110, and sliding the two reflector housings together until the front end of the male hinge portion 124 meets the front end of the adjacent female hinge portion 122.
Figure 9 is an end view of the reflector unit 100 of the light fitting 10 of Figure 1. Shown in more detail are the end caps 140 upon each reflector housing. Each end cap 140 has a curved groove 142 to compliment a curved groove 142 upon an adjacent end cap 140. The curved plate 144 fits within the grooves 142 of both end caps 140, and screws 148, located through screw holes 142a and 144a, hold the two adjacent reflector housings 110 in a particular pivoted position. The combination of the curved grooves 142, curved plate 144, screw holes 142a, 144a, and screws 148, represent both a lock mechanism and a pivotable adjustment facility. To adjust the relative pivotable position of two adjacent reflector housings 110 screws must be removed from the screw holes, the reflector housings pivotably adjusted along the pivot axis 130 to a desired position before reinserting the screws through the screw holes 142a and 144a to lock the reflector housings 110 in a particular pivotable position. The extent of the grooves 142 can also act as a pivot restrictor which limits the full extent of pivoting about the pivot axis 130. On the inside of the end caps 140 are electrical terminals for connecting to a lamp (not shown).
Figure 10 shows a top side perspective view of the cable housing 200. The cable housing 200 has a centre member 210 moveably connected to two outer members 220. The centre member 210 has a cavity 212 for cables, which in this example is covered by a lid 214. The centre member 210 also has arcuate grooves 216 arrange to receive fasteners to allow moveable attachment of the centre member 210 to the outer members 220. The outer members 220 can move within and relative to the centre member 210 to the extent that the fasteners move within the grooves 216. Such movement is designed to accommodate pivoting of the reflector housings 110 within the light fitting 10. In some embodiments the cable housing 200 is adjusted when separate from the reflector housings 110, and then reattached. The grooves 216 themselves can be considered a pivot restrictor or part of a pivot restrictor, since the extent to which the outer members 220 move relative to the centre member 210 will determine the extent of pivoting allowed of the reflector housings 110 within the light fitting 10. In alternative embodiments, the cable housing 200 itself can comprise the pivotable adjustment facility in that it may contain a motor which moves the outer members 220 relative to the centre member 210. This in turn causes pivotable movement of the reflector housings 110.
Figure 11 shows the centre member 210 in more detail with its open cavity 212 arranged in use to hold cables.
Figure 12 shows in more detail one of the outer members 220 of the cable housing 200. The outer member has screw holes 222 to allow the outer member to be pivotally attached to the centre member 210 with fasteners through the eyes 216 and the corresponding screw holes 222.
In terms of materials, in this example the reflector housings 110 are formed of a completely integral piece of extruded aluminium. Therefore the reflector 112 is an integral part of each reflector housing 110. The end caps 140 of each reflector housing 110 are typically formed of plastics material, suitably rated to withstand heat produced within the light fittings 10 during normal use. The curved plates 144 on the end caps 140 are typically made of plastic. The cable housing 200 is typically made of steel.
The reflector unit 100 of Figure 5 is formed by sliding together three reflector housings 110 as shown in Figure 8, before fitting the end caps 140. The cable housing 200 is then fitted with screws to the reflector housings 110 so that, when the reflector housings 110 are pivoted, the cable housing 200 accommodates such pivotable movement. Cables are laid within the cable channels 114 provided upon each reflector housing 110 before lids 114' are applied. The cable housing lid 214 is then also fitted. Mounting points upon the cable housing 200 then allow the light fitting to be installed upon such as a ceiling within a shop or factory. The pivoted positions of the reflector housings 110 in this example is predetermined by the locked position of each curved plate 144 within its respective curved grooves 142. For instance, the light fitting may be pivotably adjusted to provide a light fitting 10 as per Figure 4 so that light is distributed outwards over a wider area than it would be if arranged in a normal position as per Figure 3.
In use, the light fitting 10 may be pivotably adjusted using the pivotable adjustment facility of the curved plate 144. These can be manually adjusted to adjust the distribution of light within a room.
In an alternative embodiment, the curved plate 144 moves freely in the curved groove 142, and is not fixed with screws. Instead a motor within the cable housing is remotely controlled to cause pivoting of the reflector housings so that light fittings 10 installed in position can be remotely adjusted to achieve optimum distribution of light.
Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

A light fitting arrangement (10) including a first and a second reflector housing (110), the first reflector housing (110) being pivotally movable relative to the second reflector housing (110).
The light fitting arrangement (10) as claimed in claim 1, wherein a first attachment portion (122) of the first reflector housing 9110) is arranged in use to engage a second pivotable attachment portion (124) of the second reflector housing (110), wherein the second pivotable attachment portion (124) is complementary to the first pivotable attachment portion (122).
The light fitting arrangement (10) as claimed in claim 2, wherein a reflector housing (110) comprises a first and a second pivotable attachment portion (122/124).
The light fitting arrangement (10) as claimed in any of claims 2 or 3, wherein the first pivotable attachment portion (122) is elongated, and the first pivotable attachment (122) portion of the first reflector housing (110) is arranged to slidably receive the second pivotable attachment (124) portion of the second reflector housing (110) along the length of the elongated first pivotable attachment portion (122).
The light fitting arrangement (10) as claimed in any preceding claim, comprising a third reflector housing (110) that is pivotally moveable relative to at least one of the first or second reflector housings (110).
The light fitting arrangement (10) as claimed in any preceding claim, comprising a cable housing (200) for housing cables for powering lights in the reflector housings (110), the cable housing (200) comprising at least two movably linked components which are arranged in use to move with the pivotable movement of the reflector housings (110).
The light fitting arrangement (10) as claimed in any preceding claim, comprising a pivotable adjustment facility to allow selective pivotable adjustment of adjacent reflector housings (110).
A reflector housing (110) as described in any of the preceding claims.
The reflector housing (110) as claimed in claim 8, comprising a reflector (112), wherein the reflector (112) is integral to the reflector housing (110).
The reflector housing (110) as claimed in any of claims 8 or 9, wherein the reflector housing (110) is a single piece of extruded metal.
The reflector housing (110) as claimed in any of claims 8 to 10, comprising a first pivotable attachment portion (122), wherein the first pivotable attachment portion (122) is a hinge portion having a substantially C-shape cross section.
The reflector housing (110) as claimed in any of claims 8 to 11, comprising a first and a second pivotable attachment portion (122/124), wherein the first (122) is complimentary to the second (124).
A method of manufacturing a light fitting arrangement (10) comprising:
pivotally connecting two reflector housings (110) to form the light fitting (10).
The method as claimed in claim 13, comprising sliding together the two reflector housings (110) to pivotally connect the reflector housings (110).
A method of lighting an area, comprising:
installing a light fitting arrangement (10) as described in any of claims 1 to 7, and pivotably adjusting the relative orientation of reflector housings (110) to produce a desired distribution of light across the area.