TWI432671B - Indoor lighting with adjustable illumination - Google Patents

Description

Indoor lighting fixture with adjustable illumination field

The invention relates to a lamp structure, in particular to an indoor lamp with adjustable illumination light field.

Since the introduction of Light Emitting Diode (LED), due to its power saving, long life, good durability, small size, high brightness, etc., LEDs are widely used, including personal lighting equipment. , traffic lights, automotive lighting, street lights, and even various types of electronic products; as the mass production technology of light-emitting diodes has gradually matured, the use of light-emitting diodes has gradually changed from the use of specific lighting to the commonly used Lighting source; in order to enable the light-emitting diode to reach the level required for indoor lighting, the number of light-emitting diodes must be increased; however, the increase of the light-emitting diode causes light to interfere with each other, causing glare and ghosting. A specific institution must be passed to provide good lighting.

At present, the light-emitting diodes used in indoor lighting mainly combine a plurality of light-emitting diodes into one unit of lighting devices, and then configure the lighting device for the indoor space, and divide the predetermined area space into several areas at the same interval. Blocks, and the lighting devices are arranged in a matrix according to each block. This design is sufficient to achieve the required illumination brightness in a generally open and spacious space.

However, in an office building or factory with a complicated structure, since the room needs various compartments, it is impossible to use the same matrix configuration lighting device. As shown in Fig. 15, a plurality of lighting devices are arranged in the space. 90, due to space constraints, and the conventional lighting device 90 can only provide a fixed illumination light field and a fixed luminous flux, if a lighting device 90 with a small projection angle is used, the spacing is configured under the premise of a fixed illumination light field. If it is too small, it is easy to damage the visual sense due to excessive light flux. If a large spacing is arranged, it will easily cause bright and dark lines, which may cause discomfort to the human eye; if it is changed to an illumination device with too large illumination angle 90 or more illumination The device 90 causes excess light to be projected onto a wall having a poor reflectivity, resulting in wasted illumination.

In order to solve the above problems, the illumination device can only produce a fixed illumination light field, is not suitable for a complicated space configuration, and cannot adapt to various environmental requirements, etc., and an object of the present invention is to provide an indoor lamp with a variable illumination light field, so that the lamp can Adapt to a variety of indoor configuration space to provide different ranges of illumination light field, and with different lamp housings can produce different lighting effects to adapt to various environmental needs, and achieve cost-saving effects.

The technical means used in the present invention is to provide an indoor light fixture with adjustable illumination light field, comprising a lamp housing, two or more adjustment portions and two or more light bars; the lamp housing includes a reflective function. The top plate and the two or more side plates respectively extend from the periphery of the top plate, and the top plate may be a flat mirror, a parabolic mirror, a spherical mirror, a hyperbolic mirror, an elliptical mirror, or a microstructured reflection. The two or more adjustment portions are respectively disposed on the two or more side plates, and each of the adjustment portions includes a bottom plate connected to the corresponding side plate and a substrate disposed on the bottom plate, and each of the adjustment portions The bottom plate is provided with a groove for receiving and positioning The two or more light strips are respectively disposed on the two or more adjusting portions, and each of the light strips includes a carrier and a positioning plate, and the carrier of each of the light strips is provided with a plurality of The light-emitting diodes, the carrier plate and the positioning plate of each of the light strips are elongated and connected to each other at a long angle and are adjacent to the substrate of the adjusting portion to form a triangular columnar structure. The substrate of the adjustment portion and the corresponding carrier plate and the positioning plate are folded and formed by the same planar plate material to have a triangular columnar structure, and the substrate of each adjustment portion is an elongated structure and each of the substrates The adjusting portion is provided with a plurality of card abutting protrusions disposed along the width of the substrate to selectively engage the corresponding positioning plate of the light bar and thereby adjust the inclination angle of the carrier plate relative to the substrate; each of the adjusting portions The bottom plate is flexible and pivotable relative to the side panel to which it is attached.

The indoor luminaire of the adjustable variable illumination field of the invention has the following effects to enhance:

1. The illumination strip can change the angle of the emitted light beam of the illumination strip by the adjustment mechanism, thereby changing the illumination light field of the lamp, so that the illumination light field of the lamp can be adjusted according to different indoor configuration requirements. In this way, even if the luminaires are configured by the conventional matrix method, uniform illumination effects can be achieved without changing the construction method.

2. Since the illumination light field of the present invention can be adjusted through the illumination light bar, the light source can be adapted to a special environment. For example, when the projector is used in a narrow indoor space, it can control to generate less light or not in front of the projector. Produces light and has normal lighting at the viewer's location.

3. The invention adopts the lamp shell of the same specification to match the lighting strip of the same specification. It can generate different ranges of light fields to meet different environmental requirements, and it is not necessary to purchase lamps with different illumination light fields in different environments, so it can save money.

4. Since the lighting strip of the invention is folded from a flat sheet, the LED can be assembled on the sheet at regular intervals, and then the sheet is cut according to the specifications and the sheet is folded into the lighting strip of the invention. This is easy to manufacture and saves production costs.

5. The invention can cooperate with different specifications of the top plate to generate illumination light fields with different effects such as uniformity and concentration, and can generate specific illumination effects in accordance with different lighting requirements.

6. The present invention can control the glare of the light-emitting diode lamp to a reasonable range without using an additional diffusion sheet, thereby achieving cost reduction and simplification, and the present invention can also avoid the problem of multiple shadows.

In order to be able to understand the technical features and practical functions of the present invention in detail, it can be implemented in accordance with the contents of the specification, and further illustrated in the preferred embodiment as illustrated in the following:

The invention is an indoor luminaire with adjustable illumination light field. Referring to the preferred embodiment of FIG. 1 to FIG. 3, the invention comprises a lamp housing 10, two adjustment portions 30 and two light bars 20.

The lamp housing 10 is a metal stamped and formed plate-like structure, which comprises a rectangular top plate 11 and two side plates 12, and the top plate 11 is made of a reflective material, which can be made of metal, mirror or the like, and can provide reflection. a light beam emitted by the two light strips 20; the two side plates 12 extend from the peripheral edges of the top plate 11 and extend downward, respectively, so that the two side plates are enclosed to form a downward opening. The space is placed such that the reflected beam passes through the open space.

The two adjusting portions 30 are respectively disposed on the two side plates 12, and each of the adjusting portions 30 includes a bottom plate 31 and a base plate 32. The bottom plate 31 of each adjusting portion 30 extends from the corresponding side plate 12 and As shown in FIG. 4, each of the bottom plates 31 is provided with a recess 311, and the base plate 32 of each of the adjusting portions is fixedly mounted in the recess 311 of the bottom plate.

The two light strips 20 are respectively disposed on the two adjusting portions 30, and each of the light strips 20 includes a carrier 21 and a positioning plate 22, and the carrier 21 of each of the light strips 20 is provided with a plurality of lights. The diode 211; the wavelength of the light-emitting diode 211 used in the preferred embodiment of the present invention is between 380 nanometers and 780 nanometers, and the plurality of light-emitting diodes 211 on each of the light strips 20 are The fixed spacing is arranged along the longitudinal direction of the light bar 20 to provide a uniform luminous flux; the carrier plate 21 and the positioning plate 22 of each of the light bar 20 are elongated and are connected to each other at a long angle and correspond to the adjusting portion. The substrate 32 of the 30 is formed into a triangular columnar structure, and the substrate 32 of the adjusting portion 30 and the corresponding carrier plate 21 of the light bar 20 and the positioning plate 22 are folded and formed into a triangle by the same planar plate. In the columnar structure, the width of the substrate 32 of each of the adjusting portions 30 is greater than the width of each of the carrier plates 21 and each of the positioning plates 22.

Referring to FIG. 1 , the adjusting portion 30 is used to adjust the beam angle of the light emitting diode 211 of the light bar 20 . The present invention provides an embodiment of the two adjusting portions 30 as a preferred embodiment of the present invention. It does not mean that there is any limitation on the means or structure of the adjusting mechanism 30, and all the technical means for changing the beam angle of the light-emitting diode 211 of the light bar 20 under the same concept of the present invention are in the present invention. The scope of invention protection, the present invention The substrate 32 of the first preferred embodiment of the whole portion 30 has an elongated structure, and each of the adjusting portions 30 is provided at three ends of the substrate 32 with three card abutting bumps 33 arranged at equal intervals along the width of the substrate 32. By using the connection design and weight of the carrier plate 21 and the positioning plate 22, the positioning plate 22 of the light bar 20 can be selectively locked against one of the card abutting protrusions 33, thereby adjusting the carrier plate 21 The angle of inclination with respect to the substrate 32.

Referring to the operation diagrams of FIG. 4 to FIG. 6 , the plurality of light-emitting diodes 211 on the light bar 20 emits a light beam toward the top plate 11 , and the top plate 11 reflects the light beam emitted by the light-emitting diode 211 through the two side plates. The light beam is projected downwards in the open space; as shown in FIG. 4, when the edge of the positioning plate 22 is snapped to the card abutment 33 which is closer to the carrier 21, the carrier 21 is subjected to the positioning. The interlocking support of the board 22 causes a steep slope, so that the light beam emitted from the LED 211 mounted on the carrier 21 is closer to the plane of extension of the substrate 32, and the light beam enters the normal of the top board 11 The angle of the beam will be larger, and the light beam reflected by the top plate 11 will produce a larger and more diffused projection area, that is, a larger range of light fields; as shown in FIG. 5 and FIG. 6, when the positioning plate 22 is stuck When the card abutting protrusions 33 are located farther away from the carrier board 21, the carrier board 21 is supported by the positioning board 22 to cause a gentle slope, so that the LEDs mounted on the carrier board 21 are disposed. The light beam emitted by 211 is farther away from the extending plane of the substrate 32, and the light beam enters the top plate 11 method. Angle will be smaller, produce smaller and more concentrated the projected area of the top plate 11 via a reflected light beam, i.e., the light field to a lesser extent.

Referring to FIG. 7 to FIG. 8 , the bottom plate 31 of the second preferred embodiment of the adjusting portion 30 of the present invention has flexibility and is pivotable relative to the side plate 12 connected thereto; As shown in Figure 7, when the bottom plate 31 is facing up When folded, the light-emitting diode 211 of the light bar 20 emits a light beam toward the upper side, so that the light beam reflected by the top plate 11 produces a smaller and more concentrated projection area, that is, a smaller range of light fields; As shown in FIG. 8 , when the bottom plate 31 is folded downward, the light-emitting diode 211 of the light bar 20 emits a light beam downward, and the light beam reflected by the top plate 11 generates a larger and more diffused projected area. , that is, a large range of light fields.

Referring to the schematic diagrams of FIG. 3 and FIG. 9 to FIG. 13 , the top plate 11 can be used to make the light beam projected by the illumination strip 20 reflect the light field after being reflected by the top plate 11 more uniformly or with different requirements. For various forms to achieve various types of light field requirements, as shown in FIG. 3, the top plate 11 is a flat mirror; or as shown in FIG. 9, the top plate 11 is a parabolic mirror; or as shown in FIG. The top plate 11 is a spherical surface mirror; or as shown in FIG. 11, the top plate 11 is a hyperbolic mirror; or as shown in FIG. 12, the top plate 11 is an elliptical mirror; or as shown in FIG. The top plate 11 is a microstructure-shaped mirror; thereby, the top plate 11 of different structures is utilized to provide different illumination effects.

Referring to FIG. 14 , which is another preferred embodiment of the present invention, in the present embodiment, the four side panels 12 extend from the rectangular four sides of the top panel 11 and have four adjustment portions 30 . Correspondingly, the four side panels 12 and the four light strips are respectively disposed correspondingly to the four adjusting portions 30, so that a light field with a higher luminous flux can be provided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Anyone having ordinary knowledge in the technical field may use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the local changes or modifications made by the technical content disclosed in the creation are still Within the scope of this creative technical feature.

10‧‧‧Light shell

11‧‧‧ top board

12‧‧‧ side panels

20‧‧‧Light strips

21‧‧‧ Carrier Board

211‧‧‧Lighting diode

22‧‧‧ Positioning board

30‧‧‧Adjustment Department

31‧‧‧floor

311‧‧‧ Groove

32‧‧‧Substrate

33‧‧‧ card offset bump

90‧‧‧Lighting device

1 is a perspective view of a light bar of a preferred embodiment of the present invention.

2 is a schematic exploded view of the preferred embodiment of the present invention.

Figure 3 is an assembled structural view of a preferred embodiment of the present invention.

4 to 6 are partial enlarged use state reference diagrams of the first preferred embodiment of the present invention.

7 to 8 are partial enlarged use state reference diagrams of the second preferred embodiment of the present invention.

9 to 13 are schematic views of various types of top plates according to a preferred embodiment of the present invention.

Figure 14 is a perspective view of another preferred embodiment of the present invention.

Fig. 15 is a view showing a state of use of a conventional lighting device.

10‧‧‧Light shell

11‧‧‧ top board

12‧‧‧ side panels

20‧‧‧Light strips

30‧‧‧Adjustment Department

31‧‧‧floor

32‧‧‧Substrate

Claims (8)

An indoor luminaire capable of changing an illumination light field, comprising: a lamp housing, the lamp housing comprises a top plate having a reflecting function, and two or more side plates respectively extending from a periphery of the top plate; two or more adjusting portions and respectively Correspondingly disposed on the two or more side plates, each of the adjusting portions includes a bottom plate connected to the corresponding side plate, and a substrate disposed on the bottom plate, the substrate is an elongated structure and each of the adjusting portions is configured a plurality of card abutting bumps are disposed along the width of the substrate; and two or more light bar strips are respectively disposed correspondingly to the two or more adjusting portions, each of the light strips includes a carrier plate and a positioning plate, and each of the lamps The carrier board of the strip is provided with a plurality of light emitting diodes, and the carrier board and the positioning board of each of the strips are elongated and connected to each other at a long angle and correspond to the substrate of the adjusting portion. Forming a triangular columnar structure, the positioning plate is selectively positioned against one of the card abutting protrusions to adjust the inclination angle of the carrier plate relative to the substrate. The indoor luminaire of the adjustable illumination light field of claim 1, wherein the substrate of each of the adjustment portions and the corresponding carrier plate of the light bar and the positioning plate are folded by a flat plate. . The indoor luminaire of the adjustable illumination light field of claim 1 or 2, wherein the bottom plate of each of the adjustment portions is flexible and pivotable relative to the side plate to which the connection is connected. The indoor luminaire of the adjustable illumination light field of claim 3, wherein the bottom plate of each of the adjustment portions is provided with a recess for accommodating and positioning the substrate. The indoor luminaire of the variable illumination light field as claimed in claim 1 or 2, The two or more side panels, the two or more adjustment portions, and the two or more of the light bars are respectively four, and the four side panels are extended from the top panel, and the four adjustments The parts are respectively disposed on the four sets of side plates, and the four light strips are respectively disposed corresponding to the four adjustment parts. The indoor light fixture of the variable illumination light field of claim 3, wherein the two or more side panels, the two or more adjustment portions, and the two or more light bars are respectively four The four side panels are extended from the top panel, and the four adjustment portions are respectively disposed on the four sets of side panels, and the four light strips are respectively disposed corresponding to the four adjustment portions. The indoor luminaire of the adjustable illumination light field according to claim 1 or 2, wherein the top plate system is a flat mirror, a parabolic mirror, a spherical mirror, a hyperbolic mirror, an ellipse Shaped mirrors, or microstructured mirrors. The indoor luminaire of the adjustable illumination light field according to claim 3, wherein the top plate system is a flat mirror, a parabolic mirror, a spherical mirror, a hyperbolic mirror, and an elliptical reflection. Mirror, or microstructured mirror.