CN110081378B - Lamp and lighting equipment - Google Patents

Lamp and lighting equipment Download PDF

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Publication number
CN110081378B
CN110081378B CN201910361623.4A CN201910361623A CN110081378B CN 110081378 B CN110081378 B CN 110081378B CN 201910361623 A CN201910361623 A CN 201910361623A CN 110081378 B CN110081378 B CN 110081378B
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Prior art keywords
light source
light
color temperature
guide plate
lumen
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CN110081378A (en
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魏巍
姜兆宁
刘达平
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Qingdao Yilai Intelligent Technology Co Ltd
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Qingdao Yeelink Information Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/005—Lighting devices or systems producing a varying lighting effect using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a lamp, which comprises a sky simulation module, wherein the sky simulation module comprises a light guide plate, a light source and a light source module, wherein one side of the light guide plate is provided with a light inlet groove so as to realize total reflection of light rays emitted into the light inlet groove; at least one orange light source, a green light source and a blue light source which are arranged in the light inlet groove; the control device is respectively connected with the orange-yellow light source, the green light source and the blue light source, and the control device independently adjusts the lumen output of the orange-yellow light source to simulate sunrise and sunset scenes; the control device simultaneously adjusts the lumen output of the green light source and the blue light source to simulate blue sky of different depths. The lamp provided by the invention can simulate scenes such as dark blue sky, light blue sky, sunrise, sunset and the like, has relatively rich functions, does not need to use complex synthetic materials, only needs to assemble the light guide plate, each light source and the lumen adjusting device, and has simple manufacturing process. Therefore, the lamp provided by the invention has rich functions and lower manufacturing cost. The invention also discloses a lighting device comprising the lamp.

Description

Lamp and lighting equipment
Technical Field
The invention relates to the technical field of illumination, in particular to a lamp. The invention also relates to a lighting device comprising a luminaire.
Background
With the improvement of the quality of life, the requirements of people on the living environment are also improved. However, the existing partial living environment is limited by external factors, so that the residents hardly feel sunlight or blue sky, and therefore, the lamp capable of simulating the blue sky is widely favored.
The existing lamps for simulating the blue sky are few, and take a lamp for simulating the blue sky developed by the company CoeLux of italy as an example, the lamp adds nano-scale particles with the particle size smaller than the wavelength of light into a plastic substrate, and when light passes through the doped plastic material, the rayleigh scattering phenomenon occurs, so that the rayleigh scattering intensity of blue light in the doped plastic is far greater than that of visible light with other wavelengths, such as red light, green light and the like, so that the doped plastic material integrally presents blue, the color of the sky is convenient to approach, and the blue sky is simulated.
However, since rayleigh scattering only enables blue light to realize high intensity scattering, other colors of sky cannot be simulated, such as orange sky at sunrise or sunset, and the shade of blue color cannot be adjusted, such as deep blue or light blue, the lighting environment that the lamp can create is relatively single, and obviously, the existing lamp for simulating blue sky has relatively single function. Further, the synthesis of plastic materials with particles having special functions involves complicated processes, resulting in high manufacturing costs.
Therefore, the existing lamp for simulating the blue sky has single function and high manufacturing cost.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a lamp and a lighting device, which can simulate a blue sky, a sunrise and a sunset, can adjust a blue shade, do not involve complicated materials, and have a simple assembly process, so that the lamp and the lighting device have rich functions and low manufacturing cost.
The specific scheme is as follows:
the invention provides a lamp, which comprises a sky simulation module, wherein the sky simulation module comprises:
a light guide plate having a light-entering groove on one side thereof to realize total reflection of light entering the light-entering groove;
at least one orange light source, a green light source and a blue light source which are arranged in the light inlet groove;
and a lumen regulator connected to the yellow-orange light source, the green light source and the blue light source, respectively, for individually adjusting the lumen output of the yellow-orange light source to simulate a sunrise and sunset scene and for simultaneously adjusting the lumen output of the green light source and the blue light source to simulate a blue sky by color mixing.
Preferably, the groove bottom of the light entrance groove is provided with a central incident surface protruding in a direction away from the light guide plate, and the central incident surface comprises a first light entrance curved surface and a second light entrance curved surface which are symmetrical and intersect.
Preferably, the light guide plate includes an outer wall incident surface intersecting the groove edge of the light entrance groove, and both an angle between an outgoing ray from the central incident surface and a normal line extending in the thickness direction of the light guide plate and an angle between an outgoing ray from the outer wall incident surface and a normal line extending in the thickness direction of the light guide plate are larger than a total reflection angle of the light guide plate.
Preferably, a lighting function module is further included, the lighting function module including:
a light reflecting plate arranged opposite to the light guide plate;
at least one low color temperature light source and a high color temperature light source which are connected with the lumen adjusting device and are emitted into the reflector at a preset angle; the lumen adjusting device is used for adjusting the lumen output of the low color temperature light source and the high color temperature light source simultaneously so that the emergent light rays of the two light sources penetrate through the light guide plate after being reflected by the reflecting plate to emit light rays with ideal color temperature through color mixing.
Preferably, the lighting function module further includes:
and the total reflection lens is arranged on each of the low-color-temperature light source and the high-color-temperature light source so that the emergent rays of the two light sources project on the reflector at a preset beam angle.
Preferably, the method further comprises the following steps:
a support plate fixedly connected with all the low color temperature light sources and all the high color temperature light sources and used for supporting the two light sources;
and the angle adjusting device is connected with the supporting plate and used for adjusting the angle of the supporting plate to obtain a preset angle.
Preferably, the lighting device further comprises a control device connected to the lumen adjusting device and the angle adjusting device, respectively, the control device being configured to adjust the lumen adjusting device in response to an input lumen adjustment command to provide the light source with a desired lumen output, and the control device being further configured to adjust the angle adjusting device in response to the input angle adjustment command.
Preferably, the remote controller is connected with the control device and is used for converting signals input by a user into corresponding lumen adjustment instructions or angle adjustment instructions and sending the lumen adjustment instructions or angle adjustment instructions to the control device as required.
The invention also provides a lighting device which comprises a power supply and a cable, and further comprises the lamp as above, wherein the cable is used for communicating the power supply and the lamp.
Compared with the background technology, the lamp provided by the invention comprises a sky simulation module, wherein the sky simulation module comprises a light guide plate, an orange light source, a green light source, a blue light source and a lumen adjusting device.
And turning off the green light source and the blue light source, turning on the orange light source, inputting the orange light emitted by the orange light source into the light guide plate through the light inlet groove, and totally reflecting the orange light by the light guide plate. And starting the lumen adjusting device, and adjusting the lumen output of the orange-yellow light source connected with the lumen adjusting device so as to adjust the brightness degree of the orange-yellow light source, so that the light emitted by the orange-yellow light source is close to the color and the brightness degree of the sky at sunrise or sunset, and the light guide plate integrally presents the sunrise or sunset color so as to simulate sunrise and sunset scenes.
Similarly, the orange light source is turned off, and the green light source and the blue light source are turned on at the same time, green light emitted by the green light source and blue light emitted by the blue light source are simultaneously emitted into the light guide plate through the light incident grooves, and the green light and the blue light are fully reflected in the light guide plate, so that the lumen ratios of the green light and the blue light at different positions of the light guide plate 11 are basically the same. Specifically, when the lumen output of the green light source is unchanged, the lumen output of the blue light source is increased to make the mixed light appear dark blue; when the lumen output of the green light source is unchanged, the lumen output of the blue light source is reduced to make the mixed light appear light blue; when the lumen output of the blue light source is unchanged, the lumen output of the green light source is increased to make the mixed light be light blue; when the lumen output of the blue light source is unchanged, the lumen output of the green light source is reduced to make the mixed light appear dark blue; therefore, the light guide plate can present dark blue or light blue, thereby simulating blue sky with different depths.
In conclusion, the lamp provided by the invention can simulate scenes such as dark blue sky, light blue sky, sunrise and sunset, and the like, and has increased functions and relatively abundant functions. Furthermore, the lamp provided by the invention does not need to use complex synthetic materials, only needs to assemble the light guide plate, each light source and the lumen adjusting device, has simple manufacturing process and is beneficial to reducing the cost. Therefore, the lamp provided by the invention has rich functions and lower manufacturing cost.
The invention also provides a lighting device comprising the lamp, which has the same beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a lamp according to an embodiment of the invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a structural diagram of the light guide plate shown in FIG. 1;
FIG. 4 is an enlarged view of a portion of the light-entering groove of FIG. 3;
FIG. 5 is a first color mixing state diagram of a green light source and a blue light source on a CIE xy standard chromaticity diagram;
FIG. 6 is a second color mixing state diagram of a green light source and a blue light source on a CIE xy standard chromaticity diagram;
FIG. 7 is a schematic diagram of total reflection of a light guide plate;
FIG. 8 is a first color mixing state diagram of a low color temperature light source and a high color temperature light source on a CIE xy standard chromaticity diagram;
FIG. 9 is a second color mixing state diagram of a low color temperature light source and a high color temperature light source on a CIE xy standard chromaticity diagram;
FIG. 10 is a cross-sectional view of a first structure of the total reflection lens;
FIG. 11 is a cross-sectional view of a second structure of the total reflection lens;
FIG. 12 is a cross-sectional view of a third structure of the total reflection lens;
FIG. 13 is a diagram illustrating the exit state of light rays when the beam angle of the total reflection lens is less than 10 °;
fig. 14 is a first projection scene diagram of the illumination function module when the beam angle of the total reflection lens is less than 10 °;
FIG. 15 is a second projection view of the illumination function module when the beam angle of the total reflection lens is less than 10 °;
FIG. 16 is a diagram illustrating the light exiting state when the beam angle of the total reflection lens is between 10 ° and 40 °;
fig. 17 is a third projection view of the illumination function module when the beam angle of the total reflection lens is between 10 ° and 40 °;
fig. 18 is a diagram of a fourth projection scene of the illumination function module when the beam angle of the total reflection lens is between 10 ° and 40 °.
The reference numbers are as follows:
a sky simulation module 1 and a lighting function module 2;
a light guide plate 11, an orange-yellow light source 12, a green light source 13, and a blue light source 14;
a light incident groove 111 and an outer wall incident surface 112;
a central entrance plane 1111;
the first light incidence curved surface 11111 and the second light incidence curved surface 11112;
a reflector 21 and a total reflection lens 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to fig. 1 to 4, fig. 1 is a structural diagram of a lamp according to an embodiment of the invention; FIG. 2 is a front view of FIG. 1; FIG. 3 is a structural diagram of the light guide plate shown in FIG. 1; fig. 4 is a partially enlarged view of the light-entering groove of fig. 3.
The embodiment of the invention discloses a lamp, which comprises a sky simulation module 1, wherein the sky simulation module 1 comprises a light guide plate 11, an orange-yellow light source 12, a green light source 13, a blue light source 14 and a lumen adjusting device,
the light guide plate 11 is preferably rectangular and has a uniform thickness, and may be made of transparent materials such as polymethyl methacrylate, polycarbonate, silicone, ABS, and the like, but is not limited thereto. One side of the light guide plate 11 is provided with a light incident groove 111, the light incident groove 111 is preferably a groove formed on the long side of the light guide plate 11, the light incident groove 111 extends along the length direction of the light guide plate 11, and light incident from the light incident groove 111 can be totally reflected on the light guide plate 11.
The orange light source 12, the green light source 13 and the blue light source 14 each include at least one, and it should be noted that the number of the three light sources is not specifically limited herein, and the specific number may be set according to a scene.
Preferably, the orange light source 12 may be an orange LED lamp capable of emitting orange light, an amber LED lamp capable of emitting amber light, or a white LED lamp capable of emitting white light with a color temperature value of 1500-3000K. In this particular embodiment, the orange-yellow light source 12 is in particular a white LED lamp with a color temperature value of 2700K. In addition, the green light source 13 is specifically a green LED lamp capable of emitting green light, and the blue light source 14 is specifically a blue LED lamp capable of emitting blue light.
All of the orange-yellow light sources 12, all of the green light sources 13, and all of the blue light sources 14 are installed in the light-entering groove 111.
The lumen-regulating device is connected to the yellow-orange light source 12, the green light source 13 and the blue light source 14, respectively, so that the lumen-regulating device is capable of individually regulating the lumen output of the yellow-orange light source 12 to simulate a sunrise and sunset scene, while the lumen-regulating device is also capable of simultaneously regulating the lumen output of the green light source 13 and the blue light source 14 to simulate a blue sky by color mixing.
Specifically, the green light source 13 and the blue light source 14 are turned off, the orange light source 12 is turned on, and the orange light emitted from the orange light source 12 is input into the light guide plate 11 through the light incident groove 111 and is totally reflected by the light guide plate 11. And starting the lumen adjusting device, and adjusting the lumen output of the orange-yellow light source 12 connected with the lumen adjusting device so as to adjust the brightness degree of the orange-yellow light source 12, so that the light emitted by the orange-yellow light source 12 is close to sunrise or sunset, and the light guide plate 11 integrally presents sunrise or sunset color and brightness degree so as to simulate sunrise and sunset scenes.
Similarly, the orange-yellow light source 12 is turned off, the green light source 13 and the blue light source 14 are turned on at the same time, the green light emitted by the green light source 13 and the blue light emitted by the blue light source 14 are simultaneously emitted into the light guide plate 11 through the light incident groove 111, the green light and the blue light are fully reflected in the light guide plate 11, and therefore the lumen ratios of the green light and the blue light at different positions of the light guide plate 11 are basically the same, the color of the mixed-color light source at different positions of the light guide plate is consistent, and the color uniformity of the light guide plate at different positions is achieved.
Referring to fig. 5 and 6, fig. 5 is a first color mixing state diagram of the green light source 13 and the blue light source 14 on the CIE xy standard chromaticity diagram; fig. 6 is a second color mixing state diagram of the green light source 13 and the blue light source 14 on the CIE xy standard chromaticity diagram.
With reference to fig. 5 and fig. 6, it should be noted that, in the CIE xy standard chromaticity diagram, the region where the letter R is located displays red, the region where the letter G is located displays green, the region where the letter B is located displays blue, the point P in the diagram represents the position of the green light source 13 on the CIE xy standard chromaticity diagram, the point Q in the diagram represents the position of the blue light source 14 on the CIE xy standard chromaticity diagram, and the point M in the diagram represents the position of the mixed-color light source formed by mixing the green light source 13 and the blue light source 14 on the CIE xy standard chromaticity diagram.
On the CIE xy standard chromaticity diagram, it can be seen that the two light sources and the mixed color light source generated after the two light sources are mixed are always positioned on a straight line, and the assumption is thatThe tristimulus value of the green light source 13 is (X)3，Y3，Z3) The tristimulus value of the blue light source 14 is (X)4，Y4，Z4) Accordingly, the relative positional relationship between the M point and the P and Q points is as follows:
Figure BDA0002047010990000061
further, let us assume that the lumen output of the green light source 13 is LgThen X3+Y3+Z3＝fg(Lg) I.e. the sum of the tristimulus values (X) of the green light sources 133+Y3+Z3) Is lumen output LgAnd the sum of tristimulus values (X)3+Y3+Z3) Lumen output L from the green light source 13gIs positively correlated so that the lumen output L of the green light source 13 isgSum of tristimulus values (X) at increasing time3+Y3+Z3) And also increases therewith;
likewise, let us assume that the lumen output of the blue light source 14 is LbThen X4+Y4+Z4＝fb(Lb) I.e. the sum of the tristimulus values (X) of the blue light source 144+Y4+Z4) Is lumen output LbAnd the sum of tristimulus values (X)4+Y4+Z4) Lumen output L of the blue light source 14bIs positively correlated so that the lumen output L of the blue light source 14 isbSum of tristimulus values (X) at increasing time4+Y4+Z4) And also increases therewith;
therefore, the relative position relationship between the M point and the P point and the Q point can be expressed as follows:
Figure BDA0002047010990000071
that is, the falling point position of the mixed light source in the CIE xy standard chromaticity diagram can be controlled by adjusting the relative luminous outputs of the green light source 13 and the blue light source 14.
In particular, the lumen-regulating device is activated, which regulates the lumen output of the green light source 13 and the blue light source 14 simultaneously. Specifically, when the lumen output of the green light source 13 is unchanged, increasing the lumen output of the blue light source 14 causes the mixed light to appear dark blue, as shown in fig. 6; when the lumen output of the green light source 13 is constant, the lumen output of the blue light source 14 is reduced so that the mixed light is bluish, as shown in fig. 5; when the lumen output of the blue light source 14 is constant, increasing the lumen output of the green light source 13 makes the mixed light bluish, as shown in fig. 5; when the lumen output of the blue light source 14 is unchanged, the lumen output of the green light source 13 is reduced so that the mixed light is dark blue, as shown in fig. 6; from this, the light guide plate 11 can display dark blue or light blue, and simulate blue sky with different depths.
In conclusion, the lamp provided by the invention can simulate scenes such as dark blue sky, light blue sky, sunrise, sunset and the like, and has increased functions and relatively abundant functions. Furthermore, the lamp provided by the invention does not need to use complex synthetic materials, only needs to assemble the light guide plate 11, each light source and the lumen adjusting device, has simple manufacturing process and is beneficial to reducing the cost. Therefore, the lamp provided by the invention has rich functions and lower manufacturing cost.
Preferably, the bottom of the light entrance groove 111 has a central incident surface 1111 protruding in a direction away from the light guide plate 11, the central incident surface 1111 includes a first light entrance curved surface 11111 and a second light entrance curved surface 11112 symmetrically disposed, and a side of the first light entrance curved surface 11111 away from the light guide plate 11 intersects with a side of the second light entrance curved surface 11112 away from the light guide plate 11, which can be referred to fig. 4 specifically. Of course, the structure of the light incident groove 111 is not limited thereto.
The light guide plate 11 includes an outer wall incident surface 112 intersecting with the groove edge of the light incident groove 111, and in order to make the light guide plate 11 fully implement the total reflection function, both an included angle between the outgoing light ray of the central incident surface 1111 and the normal line extending in the thickness direction of the light guide plate 11 and an included angle between the outgoing light ray of the outer wall incident surface 112 and the normal line extending in the thickness direction of the light guide plate 11 are larger than the total reflection angle of the light guide plate 11.
Referring to fig. 7, fig. 7 is a schematic diagram of total reflection of the light guide plate 11.
Referring to fig. 7, it should be noted that the letter wall in fig. 7 refers to the outer wall incident surface 112, the letter center refers to the central incident surface 1111, and the line segment N1N2And N3N4Each indicates a normal line extending in the thickness direction of the light guide plate 11, and the line segment be is an outgoing ray at a point b on the curve wall, and the line segment ac is an outgoing ray at a point a on the curve center.
Specifically, assuming that the refractive index of the material used for the light guide plate 11 to air is R, the total reflection angle of the light guide plate 11 is a sin (1/R). If it is ensured that the angle between the outgoing light ray from the outer wall incident surface 112 and the normal line extending along the thickness direction of the light guide plate 11 is larger than the total reflection angle of the light guide plate 11, it means that the line segment be and the line segment N3N4Angle beN between3>a sin (1/R) can enable the line segment be to be totally reflected at the point e; similarly, if the angle between the outgoing light ray from the central incident surface 1111 and the normal line extending in the thickness direction of the light guide plate 11 is larger than the total reflection angle of the light guide plate 11, it means that the line segment ac and the line segment N are both larger than the total reflection angle of the light guide plate 111N2Angle acN between2>a sin (1/R) can make the line segment ac totally reflect at the point c.
Similarly, the orange-yellow light source 12 satisfies the above condition if total reflection is to occur in the light guide plate 11.
The light emitted from the green light source 13 and the light emitted from the blue light source 14 are sufficiently mixed in the light guide plate 11, so that the color of the light guide plate 11 is uniform at different positions. Further, the orange light source 12, the green light source 13, and the blue light source 14 are totally reflected within the light guide plate 11, so that the incident light is locked within the light guide plate 11, thereby preventing the incident light from escaping from the light guide plate 11.
It is important to note that the present invention also includes a lighting function module 2, and it should be noted here that the sky simulation module 1 and the lighting function module 2 are separated from each other, i.e. they can work independently. In addition, since the light guide plate 11 is a transparent flat plate, the light emitted from the illumination module 2 can directly pass through the light guide plate 11 along the emitting angle and maintain the primary color temperature value. In summary, the sky simulation module 1 does not cause any disturbance to the color temperature value and the light exit angle of the light exiting from the illumination module 2.
The lighting function module 2 includes a reflector 21, a low color temperature light source, a high color temperature light source, and a total reflection lens 22. Wherein, one side of the reflector 21 close to the light guide plate 11 is a mirror reflection surface, so as to realize light reflection. The light guide plate 11 is disposed opposite to the reflector 21, and preferably, the light guide plate 11 is parallel to the reflector 21.
The low color temperature light source and the high color temperature light source both comprise at least one, and all the low color temperature light sources and all the high color temperature light sources are connected with the lumen adjusting device, the low color temperature light sources and the high color temperature light sources are obliquely emitted into the reflector 21 at a preset angle, the lumen adjusting device can simultaneously adjust the lumen output of the low color temperature light sources and the high color temperature light sources, so that the emergent rays of the low color temperature light sources and the emergent rays of the high color temperature light sources are reflected by the reflector 21 and then penetrate through the light guide plate 11, and the light with ideal color temperature is emitted after the color mixing of the low color temperature light sources and the high color temperature light sources.
Preferably, the low color temperature light source is a white LED lamp having a color temperature value of 2700K and capable of emitting white light, and the high color temperature light source is a white LED lamp having a color temperature value of 6500K and capable of emitting white light.
Referring to fig. 8 and 9, fig. 8 is a first color mixing state diagram of a low color temperature light source and a high color temperature light source on a CIE xy standard chromaticity diagram; fig. 9 is a second color mixing state diagram of a low color temperature light source and a high color temperature light source on a CIE xy standard chromaticity diagram.
With reference to fig. 8 and fig. 9, it should be noted that, in the CIE xy standard chromaticity diagram, the region where the letter R is located displays red, the region where the letter G is located displays green, the region where the letter B is located displays blue, the low color temperature light source falls at the point D, the high color temperature light source falls at the point E, and the mixed color light source obtained by mixing the two falls at the point F.
It can be seen from the CIE xy standard chromaticity diagram that the mixed color light source generated after the two light sources are mixed is always located on the straight line between the two light sources, i.e. the F point is located on the line segment DE. Suppose that the tristimulus value of the low color temperature light source is (X)1，Y1，Z1) Of high colour temperature light sourcesThe magnitude of the tristimulus value is (X)2，Y2，Z2) Accordingly, the relative position relationship between the F point and the D and E points is as follows:
Figure BDA0002047010990000091
further, let L be the lumen output of the low color temperature light sourcewThen X1+Y1+Z1＝fw(Lw) I.e. the sum of the tristimulus values (X) of the low-color temperature light source1+Y1+Z1) Is lumen output LwAnd the sum of tristimulus values (X)1+Y1+Z1) Lumen output L of low color temperature light sourcewIs positively correlated, so that the lumen output L of a low color temperature light source iswSum of tristimulus values (X) at increasing time1+Y1+Z1) And also increases therewith;
likewise, let us assume a lumen output of the high color temperature light source as LcThen X2+Y2+Z2＝fc(Lc) I.e. the sum of the tristimulus values (X) of the high color temperature light source2+Y2+Z2) Is lumen output LcAnd the sum of tristimulus values (X)2+Y2+Z2) Lumen output L of high color temperature light sourcecIs positively correlated, so that the lumen output L of the high color temperature light source iscSum of tristimulus values (X) at increasing time2+Y2+Z2) And also increases therewith;
therefore, the relative position relationship between the point F and the points D and E can be expressed as follows:
Figure BDA0002047010990000092
namely, the falling point position of the mixed light source in the CIE xy standard chromaticity diagram can be controlled by adjusting the relative luminous output of the low color temperature light source and the high color temperature light source.
Specifically, when the lumen output of the low color temperature light source is unchanged, increasing the lumen output of the high color temperature light source makes the color temperature of the mixed light approach the color temperature of the light of the high color temperature light source, i.e., the color temperature value gradually increases, as shown in fig. 9; when the lumen output of the low color temperature light source is not changed, the lumen output of the high color temperature light source is reduced to make the color temperature of the mixed light approach the color temperature of the light of the low color temperature light source, i.e. the color temperature value is gradually reduced, as shown in fig. 8; when the lumen output of the high color temperature light source is not changed, the lumen output of the low color temperature light source is increased to make the color temperature of the mixed light approach the color temperature of the light of the low color temperature light source, i.e. the color temperature value is gradually decreased, as shown in fig. 8; when the lumen output of the high color temperature light source is unchanged, the lumen output of the low color temperature light source is reduced to make the color temperature of the mixed light approach the color temperature of the light of the color temperature of the high color temperature light source, i.e. the color temperature value gradually increases, as shown in fig. 9.
Therefore, the lamp provided by the invention can realize illumination besides simulating sky color, and the color temperature of illumination light can be adjusted within a certain range, so that the function is richer. For example, the user can select the illumination with the proper color temperature according to the mood or the weather, and the user experience is good.
Preferably, a total reflection lens 22 is disposed at each of the low color temperature light sources and each of the high color temperature light sources, so that the emergent light rays of the low color temperature light sources and the high color temperature light sources can be projected into the reflector 21 at a preset beam angle. It should be noted here that the preset beam angle is the beam angle of the total reflection lens 22 itself. In this embodiment, one total reflection lens 22 corresponds to one light source, so as to perform the secondary light distribution for the corresponding light source. The total reflection lens 22 is tapered, and the small diameter end is close to the light source, and the material thereof may be transparent plastic material such as polymethyl methacrylate, polycarbonate, silica gel, ABS, etc.
Referring to fig. 10 to 12, fig. 10 is a cross-sectional view of a first structure of a total reflection lens; FIG. 11 is a cross-sectional view of a second structure of the total reflection lens; FIG. 12 is a cross-sectional view of a third structure of the total reflection lens.
The total reflection lens 22 includes an incident groove, an inner side surface of the incident groove is an incident surface, a curved surface groove is provided at one end of the incident surface away from the light source, and the low color temperature light source or the high color temperature light source is installed in the incident groove. The total reflection lens 22 further includes a total reflection surface for reflecting the outgoing light from the inner side surface and a light exit surface having different forms of embedded grooves. Referring to fig. 10, the inset groove is not provided; referring to fig. 11, the inset groove is cylindrical; referring to fig. 12, the inset groove is conical. The operation principle and structure of the total reflection lens 22 can be referred to in the prior art.
Referring to fig. 13 to 15, fig. 13 is a diagram illustrating a light exit state when a beam angle of the total reflection lens is smaller than 10 °; fig. 14 is a first projection scene diagram of the illumination function module when the beam angle of the total reflection lens is less than 10 °; fig. 15 is a second projection scene diagram of the illumination function module when the beam angle of the total reflection lens is less than 10 °.
The total reflection lens 22 has a specific beam angle, which is not preferably too large. When the beam angle is smaller than 10 °, the light emitted from the total reflection lens 22 is parallel, as shown in fig. 13, and when the angles of the supporting plates are different, two projection scenes can be realized. As shown in fig. 14, the illumination module eventually emits light projected on the ground in this scene. As shown in fig. 15, the lighting module finally emits light to project on the wall surface in the scene.
Referring to fig. 16 to 18, fig. 16 is a diagram illustrating a light exit state when a beam angle of the total reflection lens is between 10 ° and 40 °; fig. 17 is a third projection view of the illumination function module when the beam angle of the total reflection lens is between 10 ° and 40 °; fig. 18 is a diagram of a fourth projection scene of the illumination function module when the beam angle of the total reflection lens is between 10 ° and 40 °.
When the beam angle is between 10 ° and 40 °, the light emitted from the total reflection lens 22 is cone-shaped, as shown in fig. 16, and when the angles of the supporting plates are different, two projection scenes can be realized. As shown in fig. 17, the illumination module eventually emits light projected on the ground in this scene. As shown in fig. 18, the lighting module finally emits light to project on the wall surface in the scene.
Preferably, the present invention further comprises a support plate and an angle adjusting device, wherein the support plate is fixedly connected to all the low color temperature light sources and all the high color temperature light sources, respectively, so that the support plate supports the light sources. Specifically, the low color temperature light source and the high color temperature light source are arranged on the support plate, and the low color temperature light source and the high color temperature light source are sequentially and alternately arranged and distributed along a straight line. The support plate may be a PCB circuit board. The angle adjusting means is connected to the support plate so that the angle of the support plate is adjusted by the angle adjusting means to allow the low color temperature light source and the high color temperature light source to be incident into the reflector 21 at a predetermined angle. It should be noted that the predetermined angle is an angle between the bottom surface of the supporting plate and a normal line extending along the thickness direction of the light guide plate 11.
Preferably, the angle adjusting device may be a motor fixedly connected to the bottom of the supporting plate, and may also be a hydraulic cylinder or an air cylinder, etc., without being limited thereto.
In order to accurately adjust the light, the invention also comprises a control device which is respectively connected with the lumen adjusting device and the angle adjusting device, and the control device adjusts the lumen adjusting device according to the input lumen adjusting instruction, so that the lumen adjusting device adjusts the lumen output of each light source, thereby accurately obtaining the light source with ideal lumen output. Furthermore, the control device can adjust the angle adjusting device according to the input angle adjusting instruction so as to accurately acquire the preset angle, so that the low-color-temperature light source and the high-color-temperature light source can accurately enter the reflector 21, the reliability is high, and the operation is convenient.
Preferably, the present invention further comprises a remote controller connected to the control device, wherein the remote controller converts the signal input by the user into a corresponding lumen adjusting command or angle adjusting command, and transmits the lumen adjusting command or angle adjusting command to the control device as required, so that the control device controls the lumen adjusting device and the angle adjusting device to realize corresponding functions. Specifically, the remote controller is provided with a plurality of buttons, for example, buttons for deep blue, light blue, sunset, sunrise, warm light, cool light, wall surface or floor surface, and the like.
When the user presses the deep blue button, the remote controller sends a lumen adjustment instruction to the control device, the control device controls the lumen adjustment device, the lumen adjustment device increases the lumen output of the blue light source 14 under the condition that the lumen output of the green light source 13 is controlled to be unchanged, or the lumen adjustment device decreases the lumen output of the green light source 13 under the condition that the lumen output of the blue light source 14 is controlled to be unchanged, so that the light guide plate 11 emits deep blue light.
For another example, when the user presses the warm light button, the remote controller sends a lumen adjustment command to the control device, and the control device controls the lumen adjustment device, and the lumen adjustment device decreases the lumen output of the high color temperature light source under the condition that the lumen output of the low color temperature light source is not changed, or increases the lumen output of the low color temperature light source under the condition that the lumen output of the high color temperature light source is not changed, so that the light guide plate 11 emits the warm color light source.
For another example, when the user presses the wall surface button, the remote controller sends a lumen adjustment command to the control device, the control device controls the angle adjustment device to operate, the angle adjustment device adjusts the angle of the support plate, the support plate changes the preset angle of the low color temperature smooth and high color temperature light source, the light rays of the low color temperature smooth and high color temperature light source are emitted from the total reflection lens 22 in parallel, and are projected onto the wall surface after sequentially passing through the reflector 21 and the light guide plate 11.
The invention also provides a lighting device, which comprises a power supply, a cable and the lamp, wherein the cable is used for communicating the power supply and the lamp.
The lamps and the lighting devices provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained herein by using specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (8)

1. A luminaire comprising a sky simulation module (1), the sky simulation module (1) comprising:
a light guide plate (11) having a light entrance groove (111) on one side thereof to totally reflect light entering the light entrance groove (111); the bottom of the light inlet groove (111) is provided with a central incident surface (1111) protruding in the direction far away from the light guide plate (11), the light guide plate (11) comprises an outer wall incident surface (112) intersecting with the groove edge of the light inlet groove (111), and both the included angle between the emergent ray of the central incident surface (1111) and the normal line extending along the thickness direction of the light guide plate (11) and the included angle between the emergent ray of the outer wall incident surface (112) and the normal line extending along the thickness direction of the light guide plate (11) are larger than the total reflection angle of the light guide plate (11);
at least one orange light source (12), a green light source (13) and a blue light source (14) which are arranged in the light inlet groove (111);
a lumen regulator connected to the yellow-orange light source (12), the green light source (13) and the blue light source (14), respectively, for individually adjusting the lumen output of the yellow-orange light source (12) to simulate a sunrise and sunset scene and for simultaneously adjusting the lumen output of the green light source (13) and the blue light source (14) to simulate a blue sky by color mixing;
with illumination function module (2) of sky simulation module (1) phase separation, illumination function module (2) include reflector panel (21), low color temperature light source, high color temperature light source, light guide plate (11) with reflector panel (21) sets up relatively, the emergent ray of low color temperature light source with the emergent ray of high color temperature light source all jets into with predetermineeing the angle aslope in reflector panel (21) and warp reflector panel (21) reflect back and directly pass along its emergent angle light guide plate (11), lumen adjusting device is used for adjusting simultaneously the low color temperature light source with the lumen output of high color temperature light source is so that two light sources jet out the light that has ideal colour temperature through the colour mixing.
2. A lamp as recited in claim 1, wherein the central entrance surface (1111) comprises a first entrance curved surface (11111) and a second entrance curved surface (11112) that are symmetrical and intersect.
3. A luminaire as claimed in any one of claims 1 to 2, characterized in that the lighting function module (2) comprises:
at least one low color temperature light source and a high color temperature light source connected to the lumen regulator and emitting at a predetermined angle into the reflector (21).
4. A luminaire as claimed in any one of claims 1 to 2, characterized in that the lighting function module (2) further comprises:
and a total reflection lens (22) arranged on each of the low color temperature light source and the high color temperature light source so as to enable emergent rays of the two light sources to project onto the reflector (21) at a preset beam angle.
5. A light fixture as recited in any one of claims 1-2, further comprising:
a support plate fixedly connected with all the low color temperature light sources and all the high color temperature light sources and used for supporting the two light sources;
and the angle adjusting device is connected with the supporting plate and is used for adjusting the angle of the supporting plate to obtain the preset angle.
6. A light fixture as recited in claim 5, further comprising a control device coupled to each of said lumen conditioning device and said angle adjusting device, said control device being configured to adjust said lumen conditioning device in response to an input lumen conditioning command to provide a desired lumen output to said light source, said control device being further configured to adjust said angle adjusting device in response to an input angle conditioning command.
7. A light fixture as recited in claim 6, further comprising a remote control coupled to the controller, the remote control configured to convert a user-entered signal into a corresponding dimming or angling command and configured to send the dimming or angling command to the controller as needed.
8. A lighting device comprising a power source and a cable, and further comprising the light fixture of any of claims 1-7, wherein the cable is configured to communicate between the power source and the light fixture.
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