Foldable lamp

Abstract

A collapsible luminaire (100) is provided. A collapsible luminaire includes a body (110) having a thickness (d) and including a top side (110a) and a bottom side (110b) separated by the thickness. The foldable luminaire further comprises a plurality of LED light sources (120, 155) arranged to emit LED light (125) in operation. The foldable luminaire also includes a first layer of flexible material (130) attached at the bottom side of the body. The first flexible material layer includes an electrical connection element for providing power to the LED light source. The foldable luminaire also includes a plurality of light shaping elements (460) disposed in the body configured to at least partially shape or redirect the light into luminaire light (105). A plurality of slits (140) are formed in the body extending from the top side to the bottom side such that a plurality of body segments (1, 2,..., n) having respective lengths (L1, L2,..., Ln) are formed in the body. The plurality of slits corresponds to at least one axis of rotation (R1, R2,..., Rn) extending in the first flexible material layer. Each of the plurality of body segments includes an LED light source of the plurality of LED light sources and a light shaping element of the plurality of light shaping elements. A rotation axis of the at least one rotation axis extends in a direction (D) corresponding to the direction of the slit associated therewith. At least one of the plurality of body segments is rotatable about at least one axis of rotation to fold the collapsible lamp.

Description

Technical Field

[0001] The present invention relates to lighting devices or lamps. More particularly, the present invention relates to collapsible lamps configured to provide aesthetically desirable lighting and / or a convenient way to fold and install the lamp. Background Art

[0002] The use of lamps such as troffers continues to spread throughout the world. In general, troffers that use light emitting diodes (LEDs) for lighting purposes continue to gain attention. Another term for troffers with integrated LEDs is LED light panels. Trough luminaires are typically long and large lighting fixtures with a rectangular shape. Trough luminaires are used in many environments, such as office spaces, schools, and laboratory facilities.

[0003] Typically, trough lighting fixtures are installed in the ceiling to provide lighting to a room. However, due to their large size, lighting fixtures can be difficult to install. In addition, trough lighting fixtures are difficult to transport.

[0004] It is therefore an object of the present invention to improve lamps and troffer lighting equipment in use today, for example to facilitate installation and / or transportation.

[0005] US2017 / 254518 discloses a flexible lighting panel having a layered sheet configuration and comprising a bottom flexible sheet of a rigid material, a top flexible sheet formed of a light-transmitting elastic material, and a two-dimensional array of light-emitting diodes (LEDs) mounted to and encapsulated between the top flexible sheet and the bottom flexible sheet. The LEDs may also include a rigid substrate (base) attached to the bottom flexible sheet. Summary of the invention

[0006] It would be of interest to provide a trough lighting device that could be more easily installed and transported. In addition, it would be of interest to provide a trough lighting device or luminaire that could be adjusted to provide more aesthetically pleasing lighting.

[0007] This and other objects are achieved by providing a foldable luminaire having the features defined in the independent claim. Preferred embodiments are defined in the dependent claims.

[0008] Therefore, according to some embodiments of the present disclosure, there is provided a foldable lamp, the foldable lamp comprising a body having a thickness and comprising a top side and a bottom side separated by the thickness. The foldable lamp further comprises a plurality of LED light sources arranged to emit LED light in operation. The foldable lamp further comprises a first flexible material layer attached at the bottom side of the body. The first flexible material layer comprises an electrical connection element for providing power to the LED light source. The foldable lamp further comprises a plurality of light shaping elements arranged in the body, the plurality of light shaping elements being configured to at least partially shape or redirect the LED light into a lamp light. A plurality of slits are arranged in the body. The plurality of slits extend from the top side of the light shaping body to the bottom side of the light shaping body, such that a plurality of body segments having corresponding lengths are formed in the body. The slits thereby correspond to (or are associated with) at least one rotation axis extending in the first flexible material layer. Each of the plurality of body segments comprises an LED light source of the plurality of LED light sources and a light shaping element of the plurality of light shaping elements. The rotation axis of the at least one rotation axis extends along a direction corresponding to the direction of the corresponding (or associated) slit. At least one light shaping segment of the plurality of light shaping segments can rotate around the at least one rotation axis to fold the foldable lamp.

[0009] "Foldable" means that the lamp can be folded. As described, the plurality of body segments can be rotated about the rotation axis to fold the lamp. However, it should be understood that foldable also includes folding less than 180 degrees, as depicted and discussed in the present disclosure. For example, folding can also include simply bending or flexing the lamp to change the shape of the lamp.

[0010] "LED light source" means a light emitting diode light source. A light emitting diode light source may generally include one or more light emitting diodes. A light emitting diode (LED) may, for example, include a laser diode.

[0011] By "flexible material layer" it is meant here a material that provides flexibility and can be folded. The flexible material layer can be made of any suitable material and can be attached to the body in any conventional manner, such as by glue or adhesive. It can also be an integral part of the body and the body is cut to a certain level so that it can be folded. For example, a channel plate where the cut is made from the top layer to just above the bottom layer. Since the flexible material layer is flexible, the segments formed in the light shaping body can be folded at the rotation axis formed by the plurality of slits.

[0012] "Slit" in this article means, for example, a cut, a split or an opening between two body segments. For example, the body can be cut to produce body segments with a slit between them, or the body segments can be placed or arranged adjacent to each other with a slit between them, in other words, an assembly of body segments.

[0013] The thickness of the luminaire body may vary depending on a number of factors. For example, in cases where the material of the body is hard or rigid, the thickness may generally be smaller. In some cases, if the material of the body is more flexible or soft, the thickness may be greater. However, the thickness need not be related to the hardness of the body. Furthermore, depending on the size of the foldable luminaire, the thickness may also vary. In cases where the area of ​​the foldable luminaire is larger, the thickness may be larger, and vice versa. Typically, the thickness may be at least 1 cm, more preferably at least 2.5 cm, and most preferably at least 3 cm. In the same manner, the thickness may be equal to or less than 10 cm, preferably equal to or less than 8 cm, more preferably equal to or less than 6 cm, and most preferably equal to or less than 5 cm. It should be understood that these values ​​may vary depending on the type of foldable luminaire and its application.

[0014] Luminaires (e.g., trough-type lighting devices) are currently typically made in a single piece, which makes them more difficult to transport or install into a luminaire holder. By forming a plurality of slits (or cutouts) in the body, the present embodiment provides a luminaire having a body section that can be folded in a convenient manner for transport or assembly into a luminaire holder. The present embodiment also provides that the body can be at least partially folded or shaped to achieve certain aesthetic effects. In other words, the luminaire according to the present embodiment can be folded for ease of transport and / or installation (easier assembly) into a holder, or at least partially folded, shaped or formed to provide a light shaping effect that would otherwise be difficult to achieve with a luminaire made of a body.

[0015] According to one embodiment, the body extends along a first axis. A plurality of slits intersect the first axis so as to form a body segment extending along the first axis. The first flexible material layer extends from the first body segment to the last body segment along the first axis. In some implementations, the plurality of slits may be orthogonal to the first axis. In this embodiment, the continuity of the body segments along the first axis corresponds to the extension of the body along the first axis. The lamp may, for example, have a rectangular or oblong shape. The flexible material layer extends from the first body segment to the last body segment and forms a rotation axis between two consecutive body segments. The body segments may be folded around the rotation axis.

[0016] In the present disclosure, a body segment (or element or block) may be referred to as first, second, third, fourth, etc., with respect to its position along an axis extending along the body. For example, a luminaire may be viewed as extending from left to right along an axis, wherein the body segment at the left end is the first body segment, and the body segment positioned at the right end (i.e., the opposite end) is the body segment.

[0017] According to one embodiment, the layer of flexible material is formed of two layers, one layer for the flexible folding and another layer for providing electrical connection to the LEDs.

[0018] According to one embodiment, the light shaping element is selected from at least one of the following: a specular reflection collimator, a diffuse reflection collimator, a total internal reflection collimator, and a collimator lens. To provide aesthetically pleasing light or to focus or direct the LED light, the body may include a reflector or a reflective cup. The body may also include other types of light forming or light reflecting materials, such as lenses or other devices for shaping light.

[0019] According to one embodiment, the first body segment has a first length along the first axis, and the third body segment has a third length along the first axis that is different than the first length.

[0020] According to one embodiment, the fourth body segment has a fourth length along the first axis that is different from the first length and the third length.

[0021] According to one embodiment, a first main body segment has a first length along a first axis, and a second main body segment disposed adjacent to the first main body segment along the first axis has a second length along the first axis that is equal to the first length. "Adjacent" here means directly behind or next to it along the axis. It will be appreciated that in the present disclosure, "adjacent" does not necessarily mean that the first main body segment and the second main body segment touch each other, as a slit is formed between them, thereby providing a small gap or distance that physically separates the main body segments. In this embodiment, the second main body segment can be folded over the first main body segment. Since their lengths are equal, the foldable lamp can be folded into a smaller configuration, for example for transportation. The second main body segment can be folded by a rotation axis formed in the first flexible material layer between the first main body segment and the second main body segment. The second main body segment can be rotated 180 degrees so as to be placed on the first main body segment.

[0022] According to one embodiment, a third body segment disposed adjacent to the second body segment along the first axis has a third length along the first axis. The third length is less than the first length and the second length. In some implementations, the third length may be equal to the thickness of the body. The third body segment may be folded by a 90 degree rotation such that in the folded configuration or state of the luminaire, it extends orthogonally compared to the direction of extension of the first body segment and the second body segment.

[0023] According to one embodiment, starting with the third body segment disposed directly after the second body segment along the first axis, the respective length of at least one of every other body segment along the first axis is equal to the thickness multiplied by an integer Z, where Z starts at one and increases by one for every other body segment. In this embodiment, the third body segment has a length along the first axis equal to the thickness, the fifth body segment has a length along the first axis equal to twice the thickness, the seventh body segment has a length along the first axis equal to three times the thickness, and so on. This embodiment provides body segments that can be conveniently folded upon each other to provide a compact and neatly folded collapsible light fixture.

[0024] According to one embodiment, starting with the fourth body segment disposed directly after the third body segment along the first axis, the respective length of at least one of every other body segment along the first axis is equal to the first length plus the thickness multiplied by an integer Y, where Y starts at zero and increases by one for every other body segment. In other words, the fourth body segment has a length along the first axis equal to the first length, the sixth body segment has a length along the first axis equal to the first length plus the thickness, the eighth body segment has a length along the first axis equal to twice the thickness plus the first length, etc. These dimensions facilitate folding the luminaire.

[0025] According to one embodiment, the body extends along the first axis and the second axis in a square or rectangular shape. Such a shape is suitable for use in locations like schools, office environments and hospitals, where standard trough lighting equipment or lamps are usually square or rectangular in shape.

[0026] According to one embodiment, the foldable luminaire further comprises a second layer of flexible material attached at the top side of the main body. The second layer of flexible material may be similar to the first layer of flexible material and made of the same basic material. It may also be made of another different material. The second layer of flexible material may be attached to the main body by any conventional means, such as by an adhesive or glue. By providing the second layer of flexible material on the top side of the main body, the foldable luminaire may be folded in more than one direction.

[0027] According to one embodiment, the plurality of slits comprises two slits formed in the body. A first slit of the two slits is formed along a first midline of the square or rectangular shape, the first midline being along a first axis, and a second slit of the two slits extends along a second midline of the square or rectangular shape, the second midline being along a second axis and being orthogonal to the first midline. In this embodiment, the body is divided into four body segments by providing two slits along the midline of the body.

[0028] According to one embodiment, a first layer of flexible material attached at the bottom side of the body at least partially covers a first slit of the two slits. A second layer of flexible material attached at the top side of the body at least partially covers a second slit of the two slits. This embodiment is advantageous because the foldable luminaire can be easily folded by itself into a compact form. The foldable luminaire can be folded along a rotation axis formed by the first slit of the two slits. Then, the foldable luminaire can be folded again along a rotation axis formed by the second slit.

[0029] According to one embodiment, the foldable lamp further comprises an LED strip, the LED strip comprising a plurality of LED light sources and optionally comprising a first flexible material layer. The LED light sources may be attached to the flexible material layer and thus form an LED strip. Alternatively, the LED light sources (themselves) may be an LED strip and it may be arranged on the first flexible material. The LED strip may be any conventional or available LED strip. The LED strip may then form part of the body of the foldable lamp.

[0030] According to one embodiment, the LED strip includes a plurality of light emitting diodes configured to emit LED light. The light emitting diodes may be distributed along the LED strip, and the light emitting diodes may be arranged in at least one body segment of the plurality of body segments.

[0031] According to one embodiment, a corresponding number of light emitting diodes is arranged in each light shaping segment depending on the respective length of the body segment. As an example, in case one body segment is longer than another body segment, it may have a higher number of light emitting diodes.

[0032] According to one embodiment, at least one of the body segments is made of a rigid material. In the case where the foldable luminaire is formed of a rigid material, it may be even more difficult to fit into the holder due to its lack of flexibility. Therefore, for embodiments in which one, some or all of the body segments are rigid, providing a flexible layer and slits in the body improves the foldability of the luminaire.

[0033] In an embodiment, the foldable light fixture and in particular the plurality of body segments may be configured such that the foldable light fixture has a folded state according to a log cabin model / principle.

[0034] When studying the following detailed disclosure, the drawings and the appended claims, further objects, features and advantages of the embodiments of the present disclosure will become apparent. Those skilled in the art will recognize that different features of the present invention can be combined to produce embodiments other than those described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] This and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing embodiment(s) of the invention.

[0036] Figure 1a , Figure 1b and Figure 1c A foldable lamp according to an exemplary embodiment of the present disclosure is schematically shown.

[0037] Figure 2a and Figure 2b A foldable lamp according to an exemplary embodiment of the present disclosure is schematically shown.

[0038] Figure 3a , Figure 3b and Figure 3c A foldable lamp according to an exemplary embodiment of the present disclosure is schematically shown.

[0039] Figure 4a , Figure 4b and Figure 4c A foldable lamp according to an exemplary embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0040] Figure 1a A foldable lamp 100 according to an exemplary embodiment of the present disclosure is schematically shown.

[0041] The foldable luminaire 100 includes a body 110. The body has a thickness d and a top side 110a and a bottom side 110b separated by the thickness d. The foldable luminaire 100 further includes a plurality of light emitting diode (LED) light sources 120, 155 arranged to emit LED light 125. The LED light 125 can, for example, be directed toward or away from the body 110. The foldable luminaire 100 further includes a plurality of light shaping elements arranged in the body 110 and configured to at least partially shape or redirect the LED light 125 into the luminaire light 105. The body 110 can, for example, include a reflector or a reflective cup to shape or direct the LED light 125 into the luminaire light 105. The luminaire body 105 can also include a lens or other light bending material.

[0042] The foldable lamp 100 further comprises a first flexible layer 130 attached at the bottom side 110b of the body 110. The flexible material layer 130 may also be attached to the top side 110a of the body 110. The first flexible material layer 130 comprises an electrical connection element 135 for providing power to the LED light sources 120, 155. The flexible material layer 130 may be made of any suitable flexible material, such as plastic or rubber or a paper composite. Furthermore, it may be an integral part of the body 110, such as a channel plate. The channel plate may also be a multi-channel plate, also known as a multi-wall sheet. The flexible material layer 130 may be attached to the bottom side 110b of the body 110 using any attachment technique, such as tape, glue or other adhesive.

[0043] In the body 110, a plurality of slits (e.g., cutouts through the body 110) 140 are formed. The plurality of slits 140 extend from the top side 110a of the body 110 to the bottom side 110b of the body 110, so that a plurality of body segments 1, 2, 3, 4, 5, 6 having respective lengths L1, L2, L3, L4, L5, L6 are formed in the body 110. The slits may also extend from the bottom side 110b to the top side 110a. In this embodiment, as shown in FIG. Figure 1a As shown in FIG. 1 , six body segments 1, 2, 3, 4, 5, 6 are formed in the body 110. However, this is an example, and any number n of body segments may be formed by the plurality of slits 140. Thus, the plurality of slits 140 correspond to the plurality of rotation axes (e.g., Figure 1b A rotation axis is associated with one of the plurality of slits 140 and is along a direction corresponding to the direction of the slit with which it is associated ( Figure 1b The plurality of body segments 1, 2, 3, 4, 5, 6 can be rotated about a plurality of rotation axes to fold the foldable lamp. The rotation axis is formed in the first flexible layer 130 at a position corresponding to the slit 140 (i.e., between two consecutive body segments), so that the first flexible layer 130 still holds the body 110 together. In some implementations, only one rotation axis may be formed, while in other implementations, such as Figure 1a As shown in , multiple rotation axes are formed. Each of the multiple main body segments includes an LED light source of the multiple LED light sources and a light shaping element of the multiple light shaping elements. The main body segment itself can also be a light shaping element. In other words, the main body segment can be made of such a material that they shape the light and serve as a light shaping element.

[0044] In other words, a plurality of slits 140 are formed in the body 110. The slits 140 extend from the top side 110a to the bottom side 110b (or in the opposite direction) so that body segments 1, 2, 3, 4, 5, 6 are formed. The body segments 1, 2, 3, 4, 5, 6 are held together by the flexible material layer 130. Since the slits 140 separate the body segments 1, 2, 3, 4, 5, 6, they can rotate around a rotation axis or be folded over each other, or at least bend toward each other (without having to lean on each other). At each slit, a rotation axis is formed in the first flexible layer, and each body segment can rotate or fold around at least one rotation axis.

[0045] exist Figure 1a In the embodiment, the body 110 extends along the first axis A1, and the plurality of slits intersect the first axis A1, so that the body segments 1, 2, 3, 4, 5, 6 are formed to extend along the first axis A1. The first flexible material layer 130 extends from the first body segment 1 to the last body segment 6 along the first axis A1.

[0046] exist Figure 1a In the embodiment, the main body segments 1, 2, 3, 4, 5, 6 have respective lengths L1, L2, L3, L4, L5, L6. The first main body segment 1 has a length L1 along the first axis A1, and the third main body segment 3 has a length L3 along the first axis A1 that is different from the first length L1. Figure 1a to Figure 1c As shown in FIG. 1 , the fourth main body segment 4 has a fourth length L4 along the first axis A1 that is different from the third length L3 but the same as the first length L1. However, the fourth length L4 may be different from the first length L1 and the third length L3.

[0047] The first body segment 1 has a first length along the first axis A1, and the second body segment 2 arranged adjacent to the first body segment 1 along the first axis A1 has a second length L2 along the first axis A1, the second length L2 being equal to the first length L1. This provides that when the body shaping segment 1 is folded over the second body segment 2, the two segments will match. Figure 1a , starting from the third main body segment 3 arranged directly after the second main body segment along the first axis A1, the respective lengths of every other main body segment 3, 5 along the first axis A1 are equal to the thickness d multiplied by an integer Z, where Z starts from one and increases by one for every other main body segment 3, 5. This provides: Figure 1a As shown in FIG. 1 , the third main body segment 3 has a length L3 equal to the thickness d, and the fifth main body segment 5 has a length L5 equal to the thickness d multiplied by two. Figure 2a In the case of (in), the seventh main body segment will have a length equal to three times the thickness d.

[0048] In addition, if Figure 1aAs shown in , starting from the fourth main body segment 4 arranged directly after the third main body segment 3 along the first axis A1, the respective lengths of every other main body segment 4, 6 along the first axis A1 are equal to the first length L1 plus the thickness d multiplied by an integer Y, where Y starts at zero and increases by one for every other main body segment 4, 6. This provides: Figure 1a As shown in FIG. 1 , the length L4 of the fourth main body segment 4 is equal to the first length L1, and the length L6 of the sixth main body segment 6 is equal to the first length L1 plus the thickness d. Figure 2a In the case of (in), the eighth main body segment will have a length equal to twice the thickness d plus the first length.

[0049] Using the above exemplary lengths L1, L2, L3, L4, L5, L6, the main body sections 1, 2, 3, 4, 5, 6 can be folded into Figure 1c The form shown in .

[0050] The LED light sources 120, 155 and the flexible material layer 130 may together form an LED strip 150, or the LED light sources 120, 155 may themselves be LED strips. The LED strip may include a plurality of light emitting diodes (LEDs) 155 configured to emit LED light 125. The LEDs 155 are distributed along the LED strip 150, and the LEDs are arranged in a plurality of body segments 1, 2, 3, 4, 5, 6. In FIG. 1 , the LEDs are distributed among all body segments 1, 2, 3, 4, 5, 6. The LEDs 155 may be distributed such that the number of LEDs 155 in a body segment depends on the respective lengths of the body segments. For example, the longer the body segment, the more LEDs 155 may be arranged therein or thereabout.

[0051] The body 110 can be made of any typical or conventional material. The body segments 1, 2, 3, 4, 5, 6 can also be made of any material. They can be made of a rigid material, for example.

[0052] The thickness d of the luminaire body 110 may vary depending on whether the material of the body 110 is harder (rigid) or more flexible (soft), or may vary depending on the size of the foldable luminaire 100. For example, the thickness d may be at least 1 cm, more preferably at least 2.5 cm, and most preferably at least 3 cm. In the same manner, the thickness d may be equal to or less than 10 cm, preferably equal to or less than 8 cm, more preferably equal to or less than 6 cm, and most preferably equal to or less than 5 cm.

[0053] The size of the collapsible luminaire 100 may vary, and may, for example, be a standard size for luminaires or trough lighting used in locations such as schools, offices, and hospitals.The collapsible luminaire 100 depicted in FIG. 1 may, for example, have a length of one meter or about one meter.

[0054] The plurality of slits 140 may separate the body segments 1, 2, 3, 4, 5, 6 by any suitable distance. However, the width of the plurality of slits 140 is preferably kept small for the stability of the foldable luminaire 100. The slits 140 may, for example, have a width of 0.1 mm to 3 mm, preferably 0.2 mm to 2 mm, more preferably 0.25 mm to 1.5 mm, and most preferably 0.3 mm to 1 mm.

[0055] The flexible material layer 130 may be formed of two layers, one layer for flexible folding and one layer for providing electrical connection to the LEDs.

[0056] Figure 1b A foldable lamp 100 according to an exemplary embodiment of the present disclosure is schematically shown.

[0057] Figure 1b and Figure 1a The same collapsible light fixture 100 is shown but from a different perspective. Figure 1b In FIG. 1 , the foldable light fixture 100 is viewed from the top side 110a. Figure 1b , rotation axes R1, R2, R3, R4, R5 corresponding to the plurality of slits are shown. The rotation axes R1, R2, R3, R4, R5 extend along a direction D corresponding to the direction of the slit 140.

[0058] Figure 1c A foldable lamp 100 according to an exemplary embodiment of the present disclosure is schematically shown.

[0059] Figure 1c Shown is a reference Figure 1a and Figure 1b A collapsible luminaire as described but in a folded configuration or state. Figure 1a , Figure 1b , Figure 1c The specific lengths L1, L2, L3, L4, L5, L6 of the main body segments 1, 2, 3, 4, 5, 6 in the embodiment of the foldable lamp 100 provide that the foldable lamp 100 can be compactly folded, such as Figure 1c As shown in the figure.

[0060] Figure 2a and Figure 2b A foldable light fixture 200 is shown according to another exemplary embodiment of the present disclosure.

[0061] Figure 2a The foldable lamp 200 is shown in an unfolded state, and Figure 2b The foldable light fixture 200 is shown in a folded state. The foldable light fixture 200 is similar to the foldable light fixture 200 of the above reference Figure 1a , Figure 1b , Figure 1c The collapsible light fixture described herein may include any of the features of the collapsible light fixture 100. The collapsible light fixture 200 differs in that it includes eight body segments 1, 2, 3, 4, 5, 6, 7, 8. The lengths of the body segments 1, 2, 3, 4, 5, 6, 7, 8 provide for compact folding of the collapsible light fixture 200, as may be seen in FIG. Figure 2b Seen in.

[0062] Figure 3a A foldable light fixture 300 according to yet another exemplary embodiment of the present disclosure is shown.

[0063] The foldable lamp 300 includes a body 310 having a thickness d and a top side 310a and a bottom side 310b separated by the thickness. The foldable lamp 300 further includes a plurality of LED light sources (not shown) arranged to emit LED light. The LED light can be directed toward or away from the body. The foldable lamp 300 also includes a first flexible material layer 330a attached to the bottom side 310b of the body 310.

[0064] In addition, two slits 340 are formed in the body 310. The two slits 340 extend from the top side 310a of the body to the bottom side 310b (or extend in opposite directions) so that a plurality of body segments 1, 2, 3, 4 are formed in the body 310. One of the two slits 340 corresponds to a rotation axis extending in the first flexible material layer 330 between the plurality of body segments 1, 2, 3, 4.

[0065] The rotation axis is associated with one of the two slits 340 and extends in a direction corresponding to the direction of the slit with which it is associated. The plurality of body segments 1, 2, 3, 4 can be rotated around the rotation axis to fold the foldable lamp.

[0066] The body 310 extends in a square shape along the first axis A1 and the second axis A2. As another example, the light shaping body may have a rectangular shape.

[0067] also, Figure 3a The foldable lamp 300 disclosed in the invention includes a second flexible material layer 330b attached to the top side 310a of the main body 310. Figure 3aIn the embodiment, two slits 340 are formed in the body, thereby forming four body segments 1, 2, 3, 4. The first slit 340 is formed along a first centerline, which is along the first axis A1, and the second slit 340 is formed along a second centerline, which is along the second axis A2. Therefore, the resulting body segments 1, 2, 3, 4 are similar in size. In other words, the body 310 is divided into four square segments (or square blocks). The first flexible material layer 330a is attached at the bottom side 310b of the body 310 so that it covers most of the first slit 340 of the two slits 340. However, in this particular embodiment, the first flexible layer 330a is divided into two flexible layers 330a attached at the bottom side 310b of the body 310 so that the second slit 340 is not covered. In other embodiments, the first flexible material layer 330a may only partially cover the first slit 340. The second flexible material layer 330b is attached at the top side 310a of the body 310 such that it at least partially covers the second slit 340 of the two slits 340. Figure 3a In the embodiment of the present invention, the second flexible material layer 330 b covers approximately half of the second slit 340 .

[0068] The addition of the second flexible material layer 330b allows the foldable light fixture 300 to be folded in multiple directions, such as Figure 3b and Figure 3c The second rotation axis is formed in the second flexible material layer 330b.

[0069] Figure 3b and Figure 3c Shown when folded Figure 3a The foldable lamp 300 depicted in FIG.

[0070] Figure 3a The foldable lamp 300 can be folded around a rotation axis formed in the second flexible material layer to achieve Figure 3b Thereafter, by folding about the rotation axis formed in the first flexible material layer 330a, the second main body segment 2 can be folded over the fourth main body segment 4. Similarly, by folding about the rotation axis formed in the first flexible material layer 330a, the first main body segment can be folded over the third main body segment 3. After these folding operations, it can be achieved Figure 3c , or the folded state depicted in .

[0071] Figure 4a , Figure 4b and Figure 4c A foldable light fixture 400 is shown according to an exemplary embodiment of the present disclosure.

[0072] Figure 4a The luminaire 400 is shown before the slits are formed, so the luminaire itself as shown in FIG. 4 is not foldable at this moment.

[0073] Figures 4a to 4c A luminaire is shown that may include features described in the above embodiments with reference to the previous figures. For example, luminaire 400 includes a body 410 and a first flexible material layer 430. Body 410 includes a plurality of reflectors 460, in this example five reflectors 460, configured to shape, reflect, or redirect light emitted from an LED light source (not shown). Reflector 460 may be, for example, one of a specular reflection collimator, a diffuse reflection collimator, a total internal reflection collimator, and a collimator lens. In Figure 4b In the embodiment of the present invention, a plurality of slits 440 (four slits in this particular example) have been made in the body 410, thereby forming a plurality of body sections 1, 2, 3, 4, 5.

[0074] exist Figure 4c In the embodiment, the foldable lamp 400 has been wound around Figure 4b The body segments 1, 2, 3, 4, 5 are rotated or bent about the rotation axes R1, R2, R3, R4 shown in FIG. However, any shape is conceivable, and the foldable lamp 400 can be shaped into an arc, for example, in the form of a square, a cylinder, etc. Shaping the foldable lamp 400 affects the light emitted from the foldable lamp 400, thereby providing the possibility of a more aesthetically pleasing appearance.

[0075] The reflector 460 may shape, redirect, and reflect light from an LED light source (eg, an LED bar including a plurality of LED light sources such as LEDs) into the luminaire light 405. The luminaire light 405 may be used to provide illumination to any environment.

[0076] Although the invention has been described in the drawings and in the foregoing description, such description is to be considered illustrative or exemplary rather than restrictive; the invention is not limited to the disclosed embodiments. Other variations of the disclosed embodiments may be understood and implemented by those skilled in the art in practicing the claimed invention by studying the drawings, the disclosure and the appended claims. In the appended claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims should not be interpreted as limiting the scope.

[0077] Those skilled in the art realize that the present invention is by no means limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, the luminaire body and luminaire segments, etc. may have shapes, sizes and / or sizes different from those depicted / described.

Claims

1. A foldable lamp (100), comprising: a body (110) having a thickness (d) and comprising a top side (110a) and a bottom side (110b) separated by the thickness; a plurality of LED light sources (120, 155) arranged to emit LED light (125) in operation; a first layer of flexible material (130) attached to the bottom side of the body, wherein the first layer of flexible material includes electrical connection elements (135) for providing power to the plurality of LED light sources; and a plurality of light shaping elements (460) disposed in the body and configured to at least partially shape or redirect the LED light into luminaire light (105); wherein a plurality of slits (140) are arranged in the body, the plurality of slits extending from the top side of the body to the bottom side of the body so that a plurality of body segments (1, 2, ..., n) having corresponding lengths (L1, L2, ..., Ln) are formed in the body, wherein the slits thereby correspond to at least one rotation axis (R1, R2, ..., Rn-1) in the first flexible material layer, wherein each body segment of the plurality of body segments comprises an LED light source of the plurality of LED light sources and a light shaping element of the plurality of light shaping elements; wherein the rotation axis (R1, . . . ) of the at least one rotation axis extends along a direction (D) corresponding to the direction of the slit to which it corresponds, wherein at least one of the plurality of body segments is capable of rotating about the at least one rotation axis to fold the foldable lamp, and The first main body segment (1) has a first length (L1) along the first axis (A1), and the third main body segment (3) has a third length (L3) along the first axis (A1) that is different from the first length.

2. A foldable lamp according to claim 1, wherein the body extends along a first axis (A1), and wherein the plurality of slits intersect the first axis (A1) so that the body segments are formed to extend along at least the first axis (A1), and wherein the first flexible material layer extends along the first axis (A1) from a first body segment (1) to a last body segment (n).

3. A foldable luminaire according to claim 1 or 2, wherein the layer of flexible material is formed of two layers, one layer for flexible folding and another layer for providing electrical connection to the LED.

4. The foldable luminaire according to any of the preceding claims, wherein the light shaping element is selected from at least one of the following: a specular reflection collimator (460), a diffuse reflection collimator (460), a total internal reflection collimator, and a collimator lens.

5. The foldable luminaire according to any of the preceding claims, wherein a fourth body segment (4) has a fourth length (L4) along the first axis (A1) different from the first length and the third length.

6. A foldable lamp according to any one of the preceding claims, wherein a first main body segment (1) has a first length (L1) along the first axis (A1), and wherein a second main body segment (2) arranged adjacent to the first main body segment along the first axis (A1) has a second length (L2) along the first axis (A1) that is equal to the first length.

7. A foldable lamp according to claim 6, wherein a third main body segment (3) arranged adjacent to the second main body segment along the first axis (A1) has a third length (L3) along the first axis (A1), wherein the third length is smaller than the first length and the second length.

8. A foldable lamp according to claim 6, wherein, starting from a third main body segment (3) arranged directly after the second main body segment along the first axis (A1), the corresponding length of at least one of every other main body segments (3, 5, 7...) along the first axis (A1) is equal to the thickness (d) multiplied by an integer Z, wherein Z starts from one and increases by one for every other main body segment (3, 5, 7...).

9. A foldable lamp according to claim 6 or 8, wherein starting from the fourth main segment (4) arranged directly after the third main segment along the first axis (A1), the corresponding length of at least one of every other main segment (4, 6, 8...) along the first axis (A1) is equal to the first length (L1) plus the thickness (d) multiplied by an integer Y, wherein Y starts from zero and increases by one for every other main segment (4, 6, 8...).

10. The foldable lamp (300) according to claim 1, wherein the body extends in a square or rectangular shape along the first axis (A1) and the second axis (A2).

11. The foldable lighting fixture of claim 10, further comprising a second layer of flexible material (330b) attached at the top side of the body.

12. A foldable lamp according to claim 10 or 11, wherein the plurality of slits include two slits formed in the body, and wherein a first slit of the two slits is formed along a first centerline of the square or rectangular shape, the first centerline is along the first axis (A1), and a second slit of the two slits extends along a second centerline of the square or rectangular shape, the second centerline is along the second axis (A2) and is orthogonal to the first centerline.

13. A foldable lamp according to claim 12, wherein the first flexible material layer is attached at the bottom side of the body so that it at least partially covers the first of the two slits, and wherein the second flexible material layer is attached at the top side of the body so that it at least partially covers the second of the two slits.

14. The foldable luminaire according to any of the preceding claims, further comprising an LED strip (150) comprising the plurality of LED light sources and optionally the first flexible material layer.

Images