NL2029122B1

NL2029122B1 - Light fixture

Info

Publication number: NL2029122B1
Application number: NL2029122A
Authority: NL
Inventors: Adrianus Cornelis Lips Johannes
Original assignee: Adrianus Cornelis Lips Johannes
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2023-03-21

Abstract

This disclosure presents a light fixture comprising a bracket configured to mount the light fixture to a periphery of a passage, an arm coupled to the bracket and a light source housed in the arm, Wherein the arm is extendible and retractable relative to the bracket to cast illumination into the passage in an extended state of the arm.

Description

Light fixture

[1] The invention relates to light fixtures, particularly but not exclusively light fixtures for loading docks.

[2] At loading docks, goods are loaded into trucks or containers from a warehouse facility, or vice versa. During loading and unloading of goods, forklift trucks or other loading machinery are generally used. Such forklift tracks drive repeatedly through a passage defined by the loading dock and forming an interface between the warehouse and the interior of the cargo hold of a truck or interior of a container. A well-lit working environment helps to prevent accidents and to reduce risk of damage to the goods, the truck or container and the loading machinery. In particular the interior of a truck or container should be well illuminated to avoid the aforementioned problems.

However, trucks seldom have lighting inside the truck’s cargo hold and containers also don’t have lighting in the interior thereof.

[3] To the best knowledge of the inventors of the current disclosure, presently available light fixtures for use at loading docks comprise a light source suspended from an arm and/or fixedly arranged in such passages to illuminate interiors of cargo holds and/or containers, and consequently exhibit disadvantages. First, they are easily damaged by forklift trucks or other machinery driving into and out of the passage. For example, conventional loading dock lights carry a light source suspended in the passage and arranged to shine light through the passage into the interior of the cargo hold or of the container positioned at the loading dock. This puts the known light fixtures in harm’s way, particularly in that the known fixtures and more in particularly the light sources thereof are exposed into the path of loading and unloading operations. When no truck or container is positioned at the loading dock, the known fixtures are exposed to weather, and are consequently susceptible to degradation by wind and rain. Also, illumination of known fixtures is of low quality. For example, shadows are thrown into the truck or container reducing visibility where it is most needed.

[4] It is an objective of the invention to provide an improved light fixture that overcomes or at least reduces one or more of the above or other disadvantages.

[5] The invention provides a light fixture comprising a bracket configured to mount the light fixture to a periphery of a passage, an arm coupled to the bracket and a light source housed in the arm, wherein the arm is extendible and retractable relative to the bracket to cast illumination into the passage in an extended state of the arm.

[6] Because the light source is housed in the arm while the arm is extendible and retractable relative to the bracket to cast illumination into the passage in the extended state, the light source is better protected and risk of damage upon impact is reduced. When, for example, a forklift truck or any of the goods it carries hits the light fixture in the extended state of the arm, the light source is covered and protected and by the arm even when exposed in the extended state to cast illumination into the passage of the loading dock. To further enhance protection of the fixtare and the light source thereof in particular, the arm may be retracted from the passage, i.e. out of harm’s way, and extended only when needed to illuminate the interiors of cargo holds and containers, and only if not extended in harm’s way. In certain embodiments of the present disclosure, contact on the fixture may even form a trigger for retraction of the arm.

[7] The light fixture according to the invention is particularly suitable for use as a loading dock light fixture, but its use is not limited to this application. Other applications include situations where lighting of spaces in or beyond a passage is desired but the light source itself can not be mounted within the space or passage. For example, visual inspection of tanks, vessels or reactors can be performed with a light fixture according to the invention. Further, the light fixture can be mounted to a post, fence or wall to cast illumination into a passage defined at least in part by such post, fence or wall. For example, the light fixture can be mounted to a wall in which the passage is defined and illuminate, in the extended state, the passage and/or a space beyond the passage through the passage in the wall. In any case, the light fixture may be extendible from and retractable to the periphery of the passage, or even retractable into the periphery of the passage.

[8] Preferred embodiments of the invention are described below and are subject of dependent claims.

[9] The invention is further clarified through the following schematic figures, wherein:

FIG. 1 depicts a light fixture mounted to a periphery of a passage;

FIG. 2 depicts a detail of FIG. 1 including the light fixture;

FIG. 3 depicts a light fixture with internal components in a rear view;

FIG. 4 depicts a light fixture with guides in a top view as indicated in FIG. 3;

FIG. 5 depicts a light fixture with internal components in a front view; and

FIG. 6 depicts connectivity of components of a light fixture.

[10] The following reference signs are used: 1 light fixture 2 bracket 3 peripheral wall

4 passage arm 6 light source 7 electric conduit 5 8 power line 9 data line electric connector 11 power connector 12 data connector 10 13 protective housing 14 articulated arm articulated member 16 hinge 17 first articulated member, distal beam 15 18 open side 19 second articulated member proximal beam guide 21 end of arm 22 cap 20 23 power output 24 power input power converter 26 switch assembly 27 passive switch 25 28 camera 29 motion sensor

Y-splitter

[11] In the following detailed description of the figures, an exemplary light fixture for a loading dock (also known as a loading dock light) is disclosed to illustrate the invention in a coherent 30 manner. However, the invention should not be understood to be limited to this particular embodiment or application, as the scope of the present disclosure is defined in the appended claims.

[12] FIGS. 1-5 show a light fixture 1. The light fixture 1 comprises a bracket 2 configured to mount the light fixture 1 to a peripheral wall 3, which at least partially extends along a periphery and thus forms a boundary of a passage 4, an arm 5 coupled to the bracket 2 and a light source 6.

The light source 6 is housed inside the arm 5. The arm 5 is extendible and retractable relative to the bracket 2 to cast illumination into the passage 4 in an extended state of the arm 5. Various additional and optional features are shown in the figures.

[13] In FIG. | and 2, the light fixture 1 is mounted to the peripheral wall 3 of the passage 4, which in the illustrated example is in the form of a loading dock, such as generally used in logistical distribution centers. The light fixture 1 is shown in the extended state and casts illomination into the passage 4 so that illumination is provided in the truck or container at the loading dock. The bracket 2 of the light fixture 1 can be mounted to the peripheral wall 3 of the passage 4 in various known ways, such as by bolting to an interior or exterior face of the peripheral wall 3 in which the passage 4 (e.g. a loading bay) is defined.

[14] Preferably, the light fixture 1 further comprises an electric conduit 7 extending through the arm 5. The electric conduit 7 can comprise lines to supply power, trigger signals and/or data. The conduit 7 preferably extends from the bracket 2 to the light source 6. The arm 5 can be hollow or comprise a channel so that one or more than one conduit 7 may be arranged within the arm 5.

[15] As illustrated in FIGS. 3 and 6, the electric conduit 7 may comprise at least one of a power line 8 and a data line 9. For sake of clarity, the electric conduit 7 is not shown in FIG. 5. The data line 9 may alternatively or additionally be embodied as a wireless connection.

[16] Preferably, the light fixture 1 comprises an electric connector 10 coupled to the electric conduit 7. The electric connector 10 may be arranged in the arm 5. As illustrated in FIG. 3, the electric connector 10 may comprise at least one of a power connector 11 and a data connector 12.

[17] The electric connector 19 may be arranged in the arm 5 at the bracket 2. That is, the power connector 11 and/or data connector 12 are preferably arranged a part of the arm 5 nearest the bracket 2.

[18] Preferably, the light source 6 is arranged remote from the bracket 2 in the extended state of the arm 5. In this case, illumination can be cast into the passage 4 from a position further removed from the bracket 2 in the extended state of the arm 5, or at least in a more central position relative to a width or a height of the passage 4.

[19] Preferably, the arm 5 forms a protective housing 13 for at least one of the light source 6, the electric conduit 7 and other hardware components housed in the arm 5. For example, the arm 5 can accommodate components in an internal space of the arm 5. To this end, the arm 5 can have a profile with a cross-section selected from the group comprising O. square, rectangular and polygonal cross-sections.

[20] In a simple embodiment, the light fixture 1 comprises an arm 5 configured to move along a longitudinal direction of the arm 5, i.e. being linearly extendible and retractable relative to the bracket 2. Alternatively or additionally, as in the shown embodiment, the arm 5 is configured to pivot in a direction having a component normal to the longitudinal direction of the arm 5, i.e. the 5 arm 5 can pivot or swivel on the bracket 2. In each case, the arm 5 can be comprised of one or more than one segment. Further examples are described below. The arm 5 can be configured to shield components in a retracted state of the arm 5, e.g. by retracting into the periphery of the passage 4, such as a wall, or by pivoting flat onto said periphery.

[21] Preferably, the arm 5 is an articulated arm 14 comprising elongate articulated members 15.

Various implementations of the articulated arm 14 are considered. The articulated members 15 can be mutually coupled via one or more than one hinge 16. When more than one hinge 16 is used between the articulated members, scissoring can be achieved to reduce space required by the fixture in a retracted state. Hinges 16 may be arranged parallel to each other to allow articulation around parallel axes, but these may also be arranged under an angle to allowed more complex motion of the articulated arm 14. Alternatively or additionally, the articulated members 15 may be coupled by one or more than one ball joint.

[22] Though the articulated arm 14 comprising at least two articulated members 15 is a preferred way of making the light fixture 1 extendible and retractable, other implementations are envisaged, such as a linearly extendible arm 5, a swiveled arm 5, a spring-loaded arm 5 or a fully elastic or rubber-like arm 5, which can even be implemented in one piece. In any case, the light fixture 1 can also be provided with an actuator, such as an electromotor, for automatically extending and retracting the light fixture 1.

[23] Preferably, a first articulated member 17 houses the light source 6 and comprises an at least partly open side 18 through which to cast illumination. It is noted that multiple light sources 6 may be arranged in multiple articulated members 15 of the articulated arm 14, e.g. multiple first articulated members 17.

[24] Preferably, the first articulated member 17 comprises a cross-sectional profile selected from the group comprising U, K, H, I, T and L profiles. A U-profile is preferred.

[25] Asis particularly clear from FIGS. 3 and 5, the first articulated member 17 may comprise an internal dimension matched to an external dimension of the second articulated member 19 with a hinge 16 provided through the matched first and second articulated members 17, 19. A simple yet robust structure is provided in this way. Further, over-extension of the articulated arm 5 is prevented in this arrangement.

[26] In the illustrated example, the hinges 16 are provided eccentric in the articulated members 15 to facilitate extension and retraction of the arm 5 over a desired angular range. For example, the second articulated member 19 may rotate over a 90° range, while the first articulated member may rotate over a 180° range. 127} Preferably, the at least partly open side 18 of the first articulated member 17 is foldable onto a second articulated member 19 to protectively cover the light source 6. Both the first and second articulated members 17, 19 are taken from among the articulated members 15 of the articulated arm 14. The articulated arm 14 may fold from the extended state to an at least partly folded or retracted state. In particular, in the retracted state of the articulated arm 14, the at least partly open side 18 of the first articulated member 17 housing the light source 6 is covered by at least one other of the articulated members 15.

[28] Preferably, the articulated members 15 are configured to fold back onto each other in a retracted state of the arm 5 or the articulated arm 14. The light source 6 and/or other components comprised by the light fixture 1, further described below, can be covered when the articulated arm 14 is folded back on itself.

[29] Itis noted that even with a single articulated member 15 or beam, the light fixture 1 can be swiveled flat onto a wall, floor or ceiling peripheral to the passage 4 so as to cover the light source 6 and/or the other components.

[30] In the illustrated example, the light fixture 1 comprises an articulated arm 14 with two articulated members 15: a first articulated member or distal beam 17 coupled to a second articulated member or proximal beam 19 which is in turn coupled to the bracket 2. As examples, the proximal beam 19 is shown with a rectangular cross-section and the distal beam 17 with a U- shaped cross-section. Two hinges 16 couple the bracket 2 to the proximal beam 19 and the latter to the distal beam 17. In the retracted state of the illustrated light fixture 1, the distal member 17 folds back onto the proximal member 19 to shield components (e.g. the light source 6, the electric conduit 7 and other components described herein) housed in the distal member 17 and/or the proximal member 19.

[31] The arm 5, in particular the protective housing 13 defined by the arm 5 and/or the one ore more than one articulated member 15 of the arm 5, can be constructed from steel, stainless steel, aluminum or iron. Further, composites, plastics or resins are contemplated. Even wood may be employed, for example recycled from pallets. The bracket 2 can be constructed from any of these materials as well and is preferably from a material that is at least as rigid as that of the arm 5.

[32] Preferably, the light source 6 is elongate. This shape results in more diffuse illumination compared to point-shaped light sources, thereby reducing strong shadows or umbra cast into the passage 4 by intervening objects (e.g. persons or forklift trucks moving through the passage). The elongation direction of the light source 6 can be parallel to a longitudinal direction of the arm 5 or, when the arm 5 is embodied as the articulated arm 14, an articulated member 15 thereof housing the light source 6.

[33] The light source 6 may comprise an elongated lamp or an array of point-like sources, such as a LED array. An opal or prismatic diffusor may be provided to the light source to further enhance illumination.

[34] It may further be preferred to cast illumination into the passage 4 so that indirect lighting is achieved, in order to further improve lighting in and/or beyond the passage 4 and avoid or reduce shadows and/or umbra. This can be achieved, for example, by casting illumination onto a ceiling of the truck or container, for which the light fixture 1 may be configured to, in the extended state of the arm 5, cast illumination into the passage 4 in a direction having an upward component relative tothe passage 4. Alternatively or additionally, illumination may be cast in a direction having a sideways component relative to the passage 4, in order to indirectly cast illumination into the passage 4 via any sides of the passage 4, such as side walls of the truck or container at the loading dock. 35] Preferably, the arm 5 comprises a guide 20 configured to engage with the light source 6 to detachably hold the light source 6 in the arm 5. The guide 20 may allow replacing of the light source 6 in the arm 5 or the first articulated member 17 housing the light source, while preventing the light source 6 from falling out of the arm 5, e.g. through the at least partly opened side 18 of the first articulated member housing the light source 6.

[36] Preferably, the guide 20 is arranged in a longitudinal direction of the arm 5. For example, the guide 20 may allow sliding in and out of the light source 6 from the arm 5 or the first articulated member 17 housing the light source, while preventing the light source 6 from falling out of the arm $, e.g. through the at least partly opened side 18 of the first articulated member housing the light source 6.

[37] A further guide 20 may be provided for other components housed in the arm 5, including the power converter 25, the camera 28 and the motion sensor 29, described below, so that these may also be detachably arranged in the arm 5 for easy replacement.

[38] The light source 6 may comprise various means to engage with the guide 20, such as protrusions or slots. The same holds for the further components guided by any further guides.

[39] The light source 6 is housed in the arm 5, in particular the articulated arm 14 or an articulated member 15 thereof, preferably the first articulated member 17. The guide 20 can be arranged between the arm 5 and the light source 6. FIG. 4 shows a particularly favorable implementation of the guide 20, viewing the arm 5 of the light fixture 1 from its end away from the bracket 2. The guide 20 here extends in the longitudinal direction of the arm 5 and is provided at two opposite sides of the light source 6 in a non-symmetric arrangement. In this way, the light source 6 can only be placed in the arm 5 in one predetermined orientation, preventing faults that could otherwise arise.

[40] Anend 21 of arm 5 may be open, e.g. when the guide 20 clamps the light source 6 in place, but such open end 21 may also be covered by a removable cover or cap 22. Preferably, the arm 5 comprises an openable end 21 for replacing the light source 6. The openable end 21 may be the end of the arm 5 opposite to the end of the arm 5 that is coupled to the bracket 2. The openable end 21 may be an open end, along the longitudinal direction of the articulated member, which can be reversibly covered by a removable cap 22, a lid, pressure-release button or the like, preferably manually operable without tools. Preferably, the arm 5 comprises a manually removable cap 22 configured to close the openable end 21 of the arm 5. FIG. 5 illustrates the manually removable cap 22, which can be made from many known elastic materials.

[41] Preferably, the light fixture 1 further comprises a power output 23 configured to detachably couple to a power input 24 of the light source 6. This enables that the light source 6 can be modularly coupled to the light fixture 1, even without tools. The power output 23 can provide from a power converter 25 arranged in the light fixture 1 or directly from an external power supply, such as a mains connection, e.g. via power connector 11. A similar power output 23 and power input 24 can be provided in other electric components of the light fixture, e.g. the camera 28 and the motion sensor 29 described below.

[42] Both the guide 20 as well as the power output 23 and the power input 24 made be provided for all of light source 6, the power converter 25, the camera 28 and the motion sensor 29.

[43] The guide 20 and power output and input 23, 24 enable manual modular assembly of the light fixture 1, even without requiring tools. Individual components can be replaced without tools or can be taken out and reused in another light fixture 1 when the arm 5 housing such components is irreparably damaged. This is especially advantageous in situations prone to impact with high force, such as at a loading dock where heavy loads are being transported through the passage 4.

[44] Preferably, the light fixture 1 further comprises the power converter 25 housed in the arm 5. The power converter 25 may be configured for converting AC to DC for, e.g., a LED light source. The power converter 25 is preferably arranged in a part of the arm 5 configured as the protective housing 13, e.g. in an articulated member 15 with a radially enclosing cross-section or the second articulated member 19. As illustrated in FIGS. 3 and 6, the power converter 25 may provide power to the light source 25 and further components of the light fixture, described below.

[45] Preferably, the light fixture 1 further comprises a switch assembly 26 comprising at least one of a passive switch 27 coupled to the arm 5, a camera 28 housed in the arm and a motion sensor 29 housed in the arm. The passive switch 27 may be activated by motion of the arm 5, e.g. asthe arm 5 is extended above a threshold, the passive switch may be triggered. The camera 28 may be configured to capture images. The motion sensor 29 can be implemented as a separate device within the light fixture 1, such as a sensor based on infrared, radar or microwave technology. However, a motion sensing functionality can also be implemented with the camera 28, which may then perform the double function of capturing images as well as of detecting motion. In other words, the motion sensor 29 may be embodied by the camera 28, e.g. by means of processing images captured by the camera 28.

[46] The passive switch 27, the camera 28 and/or the motion sensor 29 may also be provided separately or without the switch assembly 26. [47} Preferably, the switch assembly 26 is configured to switch at least one of the light source 6, the camera 28 and the motion sensor 29. That is, each of the passive switch 27, the camera 28 and the motion sensor 29 may be configured to switch the light source 6, the camera 28 and/or the motion sensor 29 in any combination. For example, when the light fixture 1 is brought in the extended state, the passive switch 27 may switch the light source 6 and the motion sensor 29, while the motion sensor 29 may in turn switch the camera 29 when motion is sensed. The roles of the passive switch 27, the camera 28 and the motion sensor 29 may also be interchanged or at least one of these components may be omitted, e.g. the passive switch 27 is omitted and the motion sensor 28 switches both the light source 6 and the camera 28 simultaneously and/or the camera 28 further switches the light source 6. Further, the passive switch 27 and/or the motion sensor 28 may be omitted altogether. As further example, the camera 28 may always collect images but only store these images when observing motion itself, e.g. the camera 28 switches itself, or when switched by at least one of the passive switch 27 and the motion sensor 29.

[48] Preferably, the passive switch 27 is configured to switch at least one of the light source 6, the camera 28 and the motion sensor 29 upon extension or retraction of the arm 5. In a simple embodiment, the passive switch 27 is operable as a push-button, for example by the arm 5 and/or a user of the light fixture 1. Alternatively, a proximity switch may be employed as the passive switch 27.

[49] Preferably, the motion sensor 29 is configured to switch at least one of the light source 6 and the camera 28 upon sensing motion. The sensing of motion may be sensing of internal motion, e.g. via gyroscopic sensor, or externally observed motion, e.g. via an infrared sensor.

[50] Preferably, the passive switch 27 is configured to switch the light source 6 to cast illumination and the motion sensor 29 is configured to switch the camera 28 to capture images.

Light may then be provided as soon as the light fixture 1 is extended, but capturing of images by the camera 28 only starts when motion sensed, e.g. observed in the sensing field, of the motion sensor 27.

[51] Preferably, at least one of the camera 28 and the motion sensor 29 is arranged adjacent to the light source 6. As illustrated, the motion sensor 28 and/or the camera 29 may be arranged in the distal beam 17 in which the light source 6 is also housed. In other words, the first articulated member 17 housing the light source 6 can further house the at least one of the camera 28 and the motion sensor 29.

[52] Preferably, at least one of a field of view of the camera 28 and a sensing field of the motion sensor 29 at feast partly overlaps with an illumination direction of the light source 6. This is, the overlap may arise at least in the extended state of the arm 5. Illumination provided by the light source 6 may then improve image collection by the camera 28 and motion sensing by the motion sensor 29, when it has a light-based sensing field. The light source 6 may be configured to provide light of frequencies matching sensitivities of the camera 28 and/or motion sensor 29.

[53] In FIG. 6, the power converter 25 is configured provide power to the light source 6 as well as to the motion sensor 29 and/or the camera 28. A Y-splitter 30 is configured to split the power lines 8 to provide power to both the light source 6 and the camera 28 when power is provided [rom the converter 25 via the motion sensor 29. As the motion sensor 29 controls power provision to the light source 6 and the camera 28, it may switch these. The passive switch 27 is not illustrated but can be added to this arrangement, for example between the power converter 25 and the motion sensor 29. The data lines 9 carry data corresponding to images collected by the camera 28 towards the data connection 12 of the light fixture I. Alternatively, a wireless connection may be provided.

[54] The motion sensor 29 may be omitted from the example illustrated in FIG. 6 and its functionality may be incorporated in the camera 28 or be omitted altogether, in which case the power converter 25 may be coupled to the Y-splitter 30 directly. Further, the camera 28 may be omitted. Alternatively, only the camera 28 may be omitted while the motion sensor 29 is maintained. In these last two cases, the Y-splitter may be omitted as well. In a rudimentary embodiment, all of the motion sensor 29, the camera 28 and the Y-splitter 30 are omitted.

[55] Use of a camera 28 is particularly advantageous for a loading dock light fixture to enable recording of the loading/unloading process. By integrating the camera 28 with the light fixture 1, the loading/unloading process can not only be improved by providing illumination, but also by documenting this process and provide evidence of the absence of any irregularities. For example, images of a loading process can be recorded by the camera 28 while the light source 6 casts illumination into the passage 4 of the loading dock. These images can be communicated to the transports, e.g. via a cloud service, to provide documentation as to the state of the cargo at the time of loading into the truck or container. If any irregularities do occur during loading, these can be documented to provide evidence at which stage of the logistical process the damage originally arose and which party is responsible. Further, such images can provide valuable examples for training loading personnel in improving their cargo handling. The light fixture 1 may thus enable an automated documentation process.

[56] The images recorded by the camera 28 may be processed to determine whether any high- risk situation and/or damage event has occurred, for example by automated image classification in a trained artificial neural network and/or by supervising personnel. When a high-risk situation or damage event is determined to have occurred, for example in a cloud service providing image analysis, an warning signal can be transmitted. For example, a damage event may be determined based on an image classifier trained on images including undamaged and damaged cargo. Further, a high-risk situation may be determined in the image based on a detected speed of loading/unloading that is above a predetermined threshold or a loading path that deviates from predetermined routes.

[57] When it is determined that the high-risk situation or the damage event has occurred, an appropriate warning command can be transmitted to the light fixture 1 to output a warning signal, for example by means of a warning module (not illustrated). The warning command may be received, for example, via the data line 9 from the cloud service. The warning module can comprise visual indications, such as a warning light or a change in illumination color provided by the light source 6, and/or sounds indications, such a slow-whoop.

[58] Though the camera 28 may continuously capture images, it is preferred that images are only stored and/or transmitted when load handling operations occur. Since these operations generally involve motion through the passage 4, the motion sensor 29 can be employed to selectively switch or trigger the camera 28 to record images or have these images recorded in an external memory, e.g. a cloud service, once motion is sensed. It is farther possibly to use buffering techniques to also record images collected for a limited time prior to the moment at which motion is sensed. This ensures that a situation just before a motion event is also recorded.

[59] Itis noted that the camera 28 may comprise audio recording functionalities or a separate microphone may be included in the light fixture 1. Recording audio saves data compared to recording video and may also provide a switch signal for e.g. the light source 6 and/or the camera 28.

[60] Though the invention has been described in relation to illumination of loading docks and the light fixture | can be a loading dock light fixture, the invention can also be applied in various other situations, such as inspection of objects in or through which passages are defined, for security applications, for monitoring passages/perimeters and even for general lighting purposes.

Claims

Conclusions

I. A lighting fixture comprising: - a bracket configured to mount the lighting fixture on a periphery of a passageway; - an arm coupled to the bracket; and - a light source accommodated in the arm, the arm being extendable and retractable relative to the bracket in order to shine light into the passage when the arm is extended.

The lighting fixture of claim 1, further comprising an electrical conduit extending through the arm.

The lighting fixture of claim 2, further comprising an electrical connector coupled to the electrical conduit and disposed in the arm.

The lighting fixture of claim 3, wherein the electrical connector is located in the arm at the bracket.

The lighting fixture of any preceding claim, wherein the light source is disposed remote from the bracket in the extended position of the arm.

The lighting fixture of any preceding claim, wherein the arm forms a protective housing for at least one of the light source, electrical conduit and other hardware components contained in the arm.

The lighting fixture of any preceding claim, wherein the arm is an articulated arm comprising elongated articulated members.

The lighting fixture of claim 7, wherein a first articulated portion receiving the light source includes an at least partially open side for directing light therethrough.

The luminaire of claim 8, wherein the first articulated portion comprises a cross-sectional profile selected from the group comprising U, K, H, I, Ten, L profiles.

The luminaire of claim 8 or 9, wherein the at least partially open side of the first articulation is foldable onto a second articulation to protectively cover the light source.

The lighting fixture of any one of claims 7-10, wherein the articulating members are configured to fold back upon each other in a retracted state of the arm.

The lighting fixture of any preceding claim, wherein the light source is elongated.

The lighting fixture of any preceding claim, wherein the arm includes a guide configured to engage the light source to removably retain the light source within the arm.

The lighting fixture of claim 13, wherein the guide is arranged in a longitudinal direction of the arm.

The lighting fixture of any preceding claim, wherein the arm includes an openable end for replacing the light source.

The lighting fixture of claim 15, wherein the arm further comprises a manually removable cover configured to close the releasable end of the arm.

The lighting fixture of any preceding claim, further comprising a power output configured to detachably couple to a power input of the light source.

The lighting fixture of any preceding claim, further comprising a power converter incorporated in the arm.

The lighting fixture of any preceding claim, further comprising a switch assembly comprising at least one of a passive switch coupled to the arm, a camera housed in the arm and a motion sensor housed in the arm.

The lighting fixture of claim 19, wherein the switch assembly is configured to switch at least one of the light source, the camera, and the motion sensor.

The lighting fixture of claim 19 or 20, wherein the passive switch is configured to switch at least one of the light source, the camera and the motion sensor upon extension or retraction of the arm.

The lighting fixture of any of claims 19-21, wherein the motion sensor is configured to switch at least one of the light source and the camera upon motion detection.

The lighting fixture of any one of claims 19-22, wherein the passive switch is configured to switch the light source to shine light and the motion sensor is configured to switch the camera to record images.

The lighting fixture of any of claims 19-23, wherein at least one of the camera and the motion sensor is disposed adjacent to the light source.

The lighting fixture of claims 8 and 24, wherein the first articulated portion receiving the light source further accommodates the at least one of the camera and the motion sensor.

26. The lighting fixture of any one of claims 19-25, wherein at least one of a camera's field of view and a motion sensor's detection range overlap at least partially with an illumination direction of the light source.

The lighting fixture of any one of claims 19-26, wherein the motion sensor is embodied by the camera.

The lighting fixture of any preceding claim which is a loading dock lighting fixture.