CN218936102U - Sky-lighting simulation device - Google Patents

Abstract

The utility model provides a simulated sky lighting device, comprising: the bottom wall of the shell is provided with a light outlet; the scattering plate is arranged at the light outlet; the reflecting piece is arranged on the inner surface of the top wall of the shell; the light emitting piece is obliquely arranged in the shell and positioned at the side part of the light outlet, emergent light rays emitted by the light emitting piece are reflected by the reflecting piece to obtain reflected light rays, and the reflected light rays are emitted to the outside of the shell through the scattering plate; the light blocking piece is arranged in the shell and connected with the bottom wall of the shell, and the light blocking piece is positioned between the diffusion plate and the luminous piece. The technical scheme of this application has solved the great problem of thickness of sky lamp among the correlation technique effectively.

Description

Sky-lighting simulation device

Technical Field

The utility model relates to the technical field of illumination, in particular to a sky-simulating illumination device.

Background

With the improvement of social progress and life quality, people pay more attention to life quality and pursuing healthy life environment. It is in this large environment that the home lighting industry has come to appear a new lamp shape in recent years, namely, a simulated sky light, or also called a blue sky light, a green sky light, etc. The sky-light-simulating lamp is mainly characterized by simulating sky visual effect and simulating the effect of obliquely shooting sun rays into a window or a skylight.

In the related art, in order to improve the illumination effect, the distance between the light source and the light outlet is increased, which results in a larger thickness of the sky light.

Disclosure of Invention

The utility model mainly aims to provide a sky-light simulating device for solving the problem of larger thickness of a sky lamp in the related art.

In order to achieve the above object, the present utility model provides a simulated sky illumination device, comprising: the bottom wall of the shell is provided with a light outlet; the scattering plate is arranged at the light outlet; the reflecting piece is arranged on the inner surface of the top wall of the shell; the light emitting piece is obliquely arranged in the shell and positioned at the side part of the light outlet, at least part of emergent light rays emitted by the light emitting piece are reflected by the reflecting piece to obtain reflected light rays, and the reflected light rays are emitted to the outside of the shell through the scattering plate; the light blocking piece is arranged in the shell and connected with the bottom wall of the shell, and the light blocking piece is positioned between the diffusion plate and the luminous piece.

Further, the vertical distance t1 between the plane where the light emitting piece and the light outlet are located, the height h of the light blocking piece, the length w of the light outlet, the minimum distance d1 between the light outlet and the light blocking piece, and the distance d2 between the light blocking piece and the side wall of the shell, where the light emitting piece is arranged, satisfy:

further, the height h of the light blocking member is greater than or equal to the distance between the lowest point of the light emitting surface of the light emitting member and the plane where the light emitting port is located.

Further, the distance between the light emitting element and the light emitting opening is vertical t1, the height t2 of the shell, the beam angle delta of the light emitting element, the included angle theta between the beam main axis of the light emitting element and the plane where the reflecting element is located, the minimum distance d1 between the light emitting opening and the light blocking element, and the distance d2 between the light blocking element and the side wall of the shell, where the light emitting element is arranged, satisfy: (t 2-t1+t2). Times.tan (90 ° -delta/2-theta). Ltoreq.d1+d2.

Further, the distance t1 between the light emitting element and the light emitting opening, the included angle θ between the beam main axis of the light emitting element and the reflecting element, the length w of the light emitting opening, and the minimum distance d3 between the light emitting opening and the projection of the light emitting element on the bottom wall of the shell satisfy: t1×tan (90+θ -. Delta./2). Gtoreq.w+d3.

Further, the distance t1 between the light emitting element and the light emitting opening, the height t2 of the shell, the included angle θ between the center line of the light emitting element and the reflecting element, the length w of the light emitting opening, the minimum distance d1 between the light emitting opening and the light blocking element, and the distance d2 between the side walls of the shell, where the light emitting element is arranged, satisfy: (t 2-t1+t2). Times.tan (90 ° - θ+δ/2. Gtoreq.w+d1+d2).

Further, the reflecting piece includes near light end and far light end, and the projection of near light end in the plane that the light exit is located and the projection of light-emitting piece in the plane that the light exit is located apart from b1, the distance t1 between light-emitting piece and the light exit, the height t2 of casing, contained angle θ between the central line of light-emitting piece and the reflecting piece, the beam angle δ of light-emitting piece satisfy between: (t 2-t 1) x tan (90 ° -delta/2-theta) is equal to or greater than b1.

Further, the reflecting piece includes near light end and far light end, and the projection of far light end at the plane that the light exit is located and the projection of light-emitting piece at the plane that the light exit is located apart from b2, the distance t1 between light-emitting piece and the light exit, the height t2 of casing, contained angle theta between the central line of light-emitting piece and the reflecting piece, the light beam angle delta of light-emitting piece satisfy between: (t 2-t 1). Times.tan (90 DEG+delta/2-theta). Ltoreq.b 2.

Further, the light emitting piece is arranged on the side wall of the shell, the reflecting piece is arranged on the top wall of the shell, and the light emitting surface of the light emitting piece faces the reflecting piece.

Further, the included angle between the beam main axis of the light emitting element and the reflecting element is between 10 degrees and 60 degrees.

Further, the included angle between the reflecting piece and the plane where the light outlet is positioned is between 0 and 15 degrees.

Further, in the projection of the plane where the light outlet is located, a part of the reflecting piece is located in the area where the light outlet is located, and the rest part of the reflecting piece is located outside the area where the light outlet is located.

Further, the reflecting piece comprises a first reflecting surface and a second reflecting surface, the included angle between the main beam axis of the luminous piece and the first reflecting surface is smaller than the included angle between the main beam axis of the luminous piece and the second reflecting surface, and the second reflecting surface is located at one side of the reflecting piece far away from the luminous piece.

Further, the second reflecting surface is an inward concave arc surface and is used for reflecting and converging emergent light rays from the light emitting element and then emitting the emergent light rays to the outside of the shell through the scattering plate.

Further, the radian of the second reflecting surface away from the side of the light emitting piece is larger than that of the second reflecting surface close to the side of the light emitting piece.

Further, an included angle between the beam main axis of the light emitting element and a side of the second reflecting surface, which is far away from the light emitting element, is larger than an included angle between the beam main axis and a side, which is close to the light emitting element, of the second reflecting surface.

By applying the technical scheme, the sky-lighting simulation device comprises a shell, a diffusion plate, a reflecting piece, a light-emitting piece and a light blocking piece, wherein the shell is provided with a light outlet, the diffusion plate is arranged at the light outlet, the reflecting piece is arranged at the top of the shell and is opposite to the light outlet, the light-emitting piece is positioned at the side part of the light outlet and is obliquely upwards arranged in the shell, light rays emitted by the light-emitting piece can irradiate the reflecting piece, reflected light rays are obtained through the action of the reflecting piece, and the reflected light rays are emitted to the outside of the shell through the diffusion plate. The light blocking piece is located in the shell and connected with the bottom wall of the shell, the light blocking piece is arranged between the light outlet and the light emitting piece, and the arrangement can prevent stray light emitted by the light emitting piece from irradiating the light outlet, so that the sky illumination simulation effect can be guaranteed. Through foretell setting, the effect of light that the luminescent part sent can shine to light outlet department at the reflector to under the effect of reflector, increased the propagation path of the light that the luminescent part sent, and then improved the effect of shining, simultaneously, such setting can also reduce the thickness of casing, makes the installation of simulation sky lighting device more convenient. Therefore, the technical scheme of the application effectively solves the problem of larger thickness of the sky light in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic overall structure of an embodiment of a simulated sky lighting device according to the utility model;

FIG. 2 illustrates a schematic view of an illumination path of a light emitting element of the simulated sky lighting device of FIG. 1;

FIG. 3 is a schematic diagram showing the structure of a lighting element of the simulated sky lighting device of FIG. 1;

FIG. 4 illustrates a schematic diagram of the principle of operation of the barrier of the simulated sky lighting device of FIG. 1;

fig. 5 shows a schematic view of a part of the simulated sky illumination device of fig. 1.

Wherein the above figures include the following reference numerals:

10. a housing; 11. a light outlet; 20. a diffusion plate; 30. a reflecting member; 40. a light emitting member; 41. a lens; 42. a light source; 50. a light blocking member; 51. a light barrier; 60. a mounting base; 61. a support slope; 70. and a light reflecting part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1, in the present embodiment, the simulated sky illumination device includes: the light blocking member 50 includes a housing 10, a diffusion plate 20, a reflecting member 30, a light emitting member 40. The bottom wall of the housing 10 is provided with a light outlet 11. The diffusion plate 20 is disposed at the light outlet 11. The reflecting member 30 is provided at an inner surface of the top wall of the housing 10. The light emitting element 40 is disposed in the housing 10 in an upward inclined manner and is located at a side portion of the light outlet 11, at least a portion of the outgoing light emitted by the light emitting element 40 is reflected by the reflecting element 30 to obtain a reflected light, and the reflected light is emitted to the outside of the housing 10 through the diffusion plate 20. The light blocking member 50 is disposed in the housing 10 and connected to the bottom wall of the housing 10, and the light blocking member 50 is disposed between the diffusion plate 20 and the light emitting member 40.

By applying the technical scheme of the embodiment, the sky-lighting simulation device comprises a shell 10, a diffusion plate 20, a reflecting piece 30, a light emitting piece 40 and a light blocking piece 50, specifically, a light outlet 11 is formed in the shell 10, the diffusion plate 20 is arranged at the light outlet 11, the reflecting piece 30 is arranged at the top of the shell 10 and opposite to the light outlet 11, the light emitting piece 40 is located at the side of the light outlet 11 and obliquely upwards arranged in the shell 10, light emitted by the light emitting piece 40 can irradiate to the reflecting piece 30, reflected light is obtained through the action of the reflecting piece 30, and the reflected light is emitted to the outside of the shell 10 through the diffusion plate 20. The light blocking piece 50 is located in the shell 10 and connected with the bottom wall of the shell 10, the light blocking piece 50 is arranged between the light outlet 11 and the light emitting piece 40, and the arrangement can prevent stray light emitted by the light emitting piece 40 from irradiating at the light outlet 11, so that the sky illumination simulation effect can be ensured. Through the above-mentioned setting, the effect of light that luminescent part 40 sent can shine to light outlet 11 department at reflector 30 to under the effect of reflector 30, increased the propagation path of the light that luminescent part 40 sent, and then improved the effect of shining, simultaneously, such setting can also reduce the thickness of casing 10, makes the installation of simulation sky lighting device more convenient. Therefore, the technical scheme of the embodiment effectively solves the problem of larger thickness of the sky light in the related technology.

The upward-tilting arrangement of the light emitting element 40 means that the light emitting surface of the light emitting element 40 is tilted upward toward the reflector 30. The bottom wall of the housing 10 is provided with a light outlet 11, and the light emitting member 40 is arranged beside the light outlet 11 on the bottom wall.

As shown in fig. 1 and 3, in the present embodiment, the light emitting member 40 includes a light source 42 and a lens 41, and the lens 41 includes a total reflection lens.

As shown in fig. 1, in the present embodiment, the reflecting member 30 is disposed at the top of the housing 10. The reflecting member 30 is a plane mirror, and preferably, the reflecting member 30 is disposed over the top of the housing 10, which is advantageous in that the reflection properties of the top of the entire housing 10 are uniform. If the reflectors 30 are distributed only in the top half, the reflective properties are not uniform where the reflectors 30 are located and where the reflectors 30 are not located, and the bright-dark properties are not uniform.

The reflector 30 has the following advantages:

1. the light spatial distribution of the outgoing light from the total reflection lens is not changed;

as shown in fig. 4, in the present embodiment, it is assumed that bae is a plane mirror, the light source 42 and the lens 41 are disposed at the o-point, the light exits from the o-point, and the light reaches the plane mirror to be specularly reflected, the light of the original light oa after reflection is ac, and the light of the original light ob after reflection is bd. The oa and ac at the plane mirror are the relationship between the incident light and the reflected light. Therefore, the angle cab= oae.

According to the principle of plane mirror imaging, an object point o and an image point o ' are symmetrically distributed about a plane mirror, and oa and o ' a are symmetrically distributed about the plane mirror, so +.o ' ae= oae.

And b, a and e are on the same straight line at the plane reflecting mirror, so that the angle bac plus angle cao plus angle oae =180°.

Because, b = oae, < o 'ae = oae, < cab = o' ae.

Therefore, < o' ae +< cao +< oae = 180 °.

Therefore, the points o', a and c are on a straight line,

similarly, the points o', b and d are on a straight line.

Thus, the angle between ac and bd is equal to the angle between o ' a and o ' b, and thus, aao ' b.

According to the plane mirror imaging principle, the angle o 'be= obe, the angle o' ae= oae. Therefore, the angle o 'ae- & lt o' be = & lt oae- & lt obe.

In Δo ' ba, +_o ' ae= +_o ' be +_bo ' a, so +_bo ' a= +_o ' ae- +_o ' be.

In Δoba, +. oae = +. obe +.boa, so +.boa= +. oae- +. obe;

therefore, the angle bo' a= the angle bo.

Therefore, the angle between ac and bd is also equal to the angle bo between oa and ob.

Therefore, the reflected light after the light passes through the plane mirror does not change the positional relationship of the light in the space as compared with the original light. That is, the planar mirror does not change the spatial distribution of the outgoing light from the total reflection lens. The spatial distribution of the emergent light of the lamp can be completely controlled accurately by the total reflection lens, and the light path system is simpler.

2. Advantages of the planar reflector in terms of complete machine thinning:

in the present embodiment, as shown in fig. 4, the light ray is from the o point, and after passing through a preset distance in the Z direction, the light ray coverage width in the X direction is ab. If the light is reflected by the reflector 30 at the bae face, the reflected light has a light coverage width dc in the X direction after passing a predetermined distance in the Z direction. And dc > ab. Therefore, under the condition that the preset distance in the Z direction is the same, the mode of the plane reflecting mirror is adopted, and the light coverage area in the X direction is correspondingly improved due to the fact that the distance of the light actually walking in the Z direction is 2 times of the preset distance. Therefore, on the premise of not increasing the walking preset distance of the Z-direction light rays, the coverage width of the X-direction light rays can be improved by adopting the plane reflector optical model. Correspondingly, under the condition that the width of the X-direction light needs to be covered is given, the preset distance travelled by the Z-direction light can be reduced to the greatest extent by adopting the plane reflector optical model.

Therefore, the planar mirror model adopted in the technical scheme of the embodiment is beneficial to controlling the dimension of the whole machine in the Z direction, and in practice, the dimension in the Z direction is generally the thickness direction of the whole machine. Therefore, the planar reflector model adopted by the technical scheme of the embodiment is beneficial to controlling the thickness dimension of the whole machine, namely, thinning of the whole machine.

As shown in fig. 1, in the present embodiment, the light emitting member 40 is disposed on the side wall of the housing 10, the reflecting member 30 is disposed on the top wall of the housing 10, and the light emitting surface of the light emitting member 40 is disposed toward the reflecting member 30. The light emitting part is arranged on the side wall of the shell, the included angle between emergent light and the reflecting part 30 can be reduced as much as possible, the emergent light can cover more reflecting parts 30, and then the larger light outlet 11 is covered, so that the light emitting area can be effectively improved.

As shown in fig. 1, in the present embodiment, the angle between the beam main axis of the light emitting member 40 and the reflecting member 30 is between 10 ° and 60 °. The beam main axis refers to the light emitting direction of the light emitting element, that is, the beam main axis. The setting of the angle can guarantee the illumination effect. Specifically, in the present embodiment, the angle between the beam main axis of the light emitting member 40 and the reflecting member 30 is 45 °.

In the present embodiment, as shown in fig. 1, the angle between the reflecting member 30 and the plane of the light outlet 11 is between 0 ° and 15 °. The above arrangement can further ensure the reflection effect, and in particular, in this embodiment, the angle between the reflecting member 30 and the plane of the light outlet 11 is 0 °. Of course, the angle between the reflecting member 30 and the plane of the light outlet 11 may be 5 °, 8 ° or 12 °.

As shown in fig. 1, in the present embodiment, the light blocking member 50 is disposed in the housing 10 and located between the light emitting portion area and the light source portion area, and the light blocking member 50 is configured to block at least part of the direct light from the light emitting member 40 that is not distributed by the reflecting member 30. The light blocking piece 50 is located in the shell 10 and connected with the bottom wall of the shell 10, the light blocking piece 50 is arranged between the light outlet 11 and the light emitting piece 40, and the arrangement can prevent stray light emitted by the light emitting piece 40 from irradiating at the light outlet 11, so that the sky illumination simulation effect can be ensured.

As shown in fig. 5, in the present embodiment, the vertical distance t1 between the light emitting member 40 and the plane in which the light emitting port 11 is located, the height h of the light blocking member 50, the length w of the light emitting port 11, the minimum distance d1 between the light emitting port 11 and the light blocking member 50, and the distance d2 between the light blocking member 50 and the side wall of the housing 10 where the light emitting member 40 is disposed satisfy:

with the above arrangement, direct-view glare into the eyes of the user can be suppressed, and specifically, light emitted from the light emitting member 40 is located between the closest point of the light outlet 11 and the light emitting member 40 and the farthest point of the light outlet 11 and the light emitting member 40.

As shown in fig. 5, in the present embodiment, the height h of the light blocking member 50 is greater than or equal to the distance between the lowest point of the light emitting surface of the light emitting member 40 and the plane where the light emitting opening 11 is located. The above arrangement can shield stray light, and then can further improve the effect of simulated sky illumination.

As shown in fig. 5, in the present embodiment, the distance between the light emitting element 40 and the light emitting opening 11 is vertical t1, the height t2 of the housing 10, the beam angle δ of the light emitting element 40, the angle θ between the beam principal axis of the light emitting element 40 and the plane of the reflecting element 30, the minimum distance d1 between the light emitting opening 11 and the light blocking element 50, and the distance d2 between the light blocking element 50 and the side wall of the housing 10 where the light emitting element 40 is disposed satisfy: (t 2-t1+t2). Times.tan (90 ° -delta/2-theta). Ltoreq.d1+d2. By the arrangement, the light reflected by the reflecting member 30 can cover the nearest point between the light outlet 11 and the light emitting member 40, i.e. the nearest point can be prevented from being too dark, so that the irradiation effect of the sky-lighting device can be effectively improved.

As shown in fig. 1, in the present embodiment, the projection of the light emitting member 40 on the bottom wall of the housing 10 is located at a side of the light source area near the light blocking member 50, and a light reflecting portion 70 is disposed in the housing 10, the projection of the light reflecting portion 70 on the bottom wall of the housing 10 is located at a side of the light source area far away from the light blocking member 50, and the light reflecting portion 70 is configured to receive at least part of the outgoing light emitted by the light emitting member 40, reflect the outgoing light to the reflecting member 30, reflect the outgoing light by the reflecting member 30, and then emit the outgoing light to the outside of the housing 10 through the diffusion plate 20. The provision of the light reflecting portion 70 can further enhance the reflection of light to the reflecting member 30, and can further enhance the effect of irradiation.

Specifically, the light reflecting portion 70 is provided on the side wall of the housing 10 and is located on the side wall on which the light emitting member 40 is provided.

As shown in fig. 1, in the present embodiment, the light emitting member 40 is disposed at a side portion of the light blocking member 50, the light reflecting portion 70 is disposed at a side wall of the housing 10, and the light emitting surface of the light emitting member 40 faces the light reflecting portion 70. The above arrangement can make the light of the portion irradiated by the light emitting member 40 irradiate on the light reflecting portion 70 and reflect to the light outlet 11 through the light reflecting portion 70, so that the irradiation effect can be ensured.

As shown in fig. 5, in the present embodiment, the distance t1 between the light emitting element 40 and the light outlet 11, the included angle θ between the beam main axis of the light emitting element 40 and the reflecting element 30, the length w of the light outlet 11, and the minimum distance d3 between the light outlet 11 and the projection of the light emitting element 40 on the bottom wall of the housing 10 satisfy: t1×tan (90+θ -. Delta./2). Gtoreq.w+d3. The above arrangement can prevent direct light, which is not reflected by the reflecting member 30, from being irradiated onto the diffusion plate 20.

Specifically, the lens 41 in the present embodiment is a total reflection lens, and the total reflection lens performs secondary distribution on the light from the light source 42, and the light space distribution rule of the light emitted from the light source 42 is mainly implemented by the total reflection lens.

Preferably, the total reflection lens is asymmetric light distribution, and the light source 42 is an LED light source.

As shown in fig. 5, in the present embodiment, the distance t1 between the light emitting member 40 and the light emitting opening 11, the height t2 of the housing 10, the included angle θ between the center line of the light emitting member 40 and the reflecting member 30, the length w of the light emitting opening 11, the minimum distance d1 between the light emitting opening 11 and the light blocking member 50, and the distance d2 between the side walls of the housing 10 where the light emitting member 40 is disposed satisfy: (t 2-t1+t2). Times.tan (90 ° - θ+δ/2). Gtoreq.w+d1+d2. Through the arrangement, the light emitted by the light emitting element 40 can be irradiated to the furthest point of the light emitting opening 11 and the light emitting element 40, namely, the illuminance at the furthest point of the light emitting opening 11 can be ensured, and further, the irradiation effect of the simulated sky lighting device can be ensured.

As shown in fig. 5, in the present embodiment, the reflecting member 30 includes a low beam end and a high beam end, and the distance b1 between the projection of the low beam end on the plane of the light outlet 11 and the projection of the light emitting member 40 on the plane of the light outlet 11, the distance t1 between the light emitting member 40 and the light outlet 11, the height t2 of the housing 10, the included angle θ between the center line of the light emitting member 40 and the reflecting member 30, and the beam angle δ of the light emitting member 40 satisfy the following conditions: (t 2-t 1) x tan (90 ° -delta/2-theta) is equal to or greater than b1. The above arrangement can ensure the effect of irradiation.

As shown in fig. 5, in the present embodiment, the reflecting member 30 includes a low beam end and a high beam end, and the projection of the high beam end on the plane of the light outlet 11 and the projection of the light emitting member 40 on the plane of the light outlet 11 have a distance b2, a distance t1 between the light emitting member 40 and the light outlet 11, a height t2 of the housing 10, an included angle θ between the center line of the light emitting member 40 and the reflecting member 30, and a beam angle δ of the light emitting member 40 satisfy the following conditions: (t 2-t 1). Times.tan (90 DEG+delta/2-theta). Ltoreq.b 2. The above arrangement can similarly enhance the effect of irradiation.

As shown in fig. 1, in the present embodiment, the light emitting member 40 includes a lens 41 and a light source 42, the lens 41 is mounted on the light emitting side of the light source 42, and the light source 42 generates asymmetric outgoing light rays through the lens 41. The lens 41 is arranged to enable the light emitted by the light source 42 to achieve asymmetric irradiation, so that the light can be ensured to be irradiated on the whole scattering plate 20, and the irradiation effect can be ensured.

As shown in fig. 2 and 3, in the present embodiment, the o-point is the position where the light source 42 and the total reflection lens are located, oa and ob are the edge outgoing light rays of the light source 42 and the lens 41, and oc is the outgoing light rays of the light source 42 and the total reflection lens in the 0 degree direction or the main optical axis direction. The inclined line oc is 0-degree direction because the light source 42 is obliquely installed with respect to the total reflection lens as discussed herein.

The light rays distributed between oa and oc and the light rays distributed between ob and oc are emergent light rays distributed on two sides in the 0-degree direction. Preferably, the light ray distributed between oa and oc differs from the light ray distributed between ob and oc in the light ray energy level, precisely, the light ray energy distributed between ob and oc is greater than the light ray energy distributed between oa and oc.

As shown in fig. 2 and 3, in the present embodiment, the light distributed between ob and oc is used to illuminate the bc working area, and the light distributed between oa and oc is used to illuminate the ac working area.

As shown in fig. 2 and 3, in the present embodiment, the bc length is obviously greater than the ac length, and assuming that the illuminance level of the bc working area is required to be identical to the illuminance level of the ac working area and the illuminance everywhere is L, the light energy of the bc working area=l×bc, and the light energy of the ac working area=l×ac. Therefore, light energy of bc working area/light energy of ac working area = bc/ac. And bc > ac, so the light energy/ac of bc working area, light energy of working area > 1.

As shown in fig. 2 and 3, that is, if the illuminance level of the bc working area is required to be identical to the illuminance level of the ac working area, the light energy irradiated to the bc working area from the light source 42 and the total reflection lens must be more than the light energy irradiated to the ac working area. Therefore, to ensure uniform distribution of illuminance in the bc and ac operating regions, the light source 42 and the total reflection lens need to have asymmetric distribution of outgoing light.

The sky-lighting simulation device further comprises a mounting seat 60, wherein the mounting seat 60 is fixed on the inner side wall of the shell 10, and the luminous element 40 is mounted on the mounting seat 60. The mounting base 60 can make the position of the light emitting element 40 more stable.

As shown in fig. 1, in the present embodiment, the mount 60 includes a support slope 61, and the light emitting member 40 is mounted on the support slope 61. The support slope 61 can realize oblique irradiation of the light emitting member 40 and can secure the position of the light emitting member 40, avoiding shaking of the light emitting member 40.

The diffusion plate 20 includes a rayleigh diffusion plate.

As shown in fig. 1, in the present embodiment, the light emitting members 40 are plural, the plural light emitting members 40 are disposed at intervals along the width direction of the housing 10, and/or the plural light emitting members 40 are symmetrically disposed at opposite side walls of the housing 10. The above arrangement can improve the irradiation effect of the simulated sky illumination device.

The reflecting member 30 includes a first reflecting surface and a second reflecting surface, an included angle between a principal axis of the light beam of the light emitting member 40 and the first reflecting surface is smaller than an included angle between the principal axis of the light beam and the second reflecting surface, and the second reflecting surface is located at a side of the reflecting member 30 away from the light emitting member 40. The first reflecting surface and the second reflecting surface have an included angle, and the second reflecting surface is located at one side of the first reflecting surface far away from the light emitting element 40, so that under the action of the first reflecting surface and the second reflecting surface, more light beams can be received and reflected, namely, light beams with poor illumination intensity in the prior art can be solved. These light beams are superimposed with each other or with the light beam reflected by the first reflecting surface under the action of the second reflecting surface, so that the luminous flux of the high beam end is improved, that is, the light beam emitted by the light emitting element 40 can be fully utilized, and the utilization rate of the partial light beam is also improved.

Since the light emitted by the light emitting element 40 is not absolutely collimated, i.e. the outgoing beam of the light emitting element 40 has a certain beam angle, and the reflecting surface has a certain included angle with the beam, the reflecting surface required to be covered by the beam with the same included angle is larger and larger along with the increase of the distance from the light emitting element 40, so that the reflecting surface on the side far away from the light emitting element 40 receives luminous flux or has a light intensity smaller or even far smaller than the reflecting surface on the side near the light emitting element 40. And then the luminous flux or the light intensity of the light reflected to the scattering plate by the reflecting surface is inconsistent, the light receiving of the scattering plate is uneven, and the sky simulation effect is obviously affected.

According to the scheme provided by the embodiment, by arranging the reflecting surface with a larger included angle at the side far away from the light emitting element 40, more emergent light from the light emitting element 40 can be received and reflected without increasing or obviously increasing the length of the far-reaching end of the reflecting element 30, so that the luminous flux or the light intensity of the far-reaching end is improved, and the light receiving and light emitting uniformity of the scattering plate 20 is further improved.

The technical scheme of this embodiment does not need to additionally increase the light filling light source, does not need to carry out the fine adjustment to the light source grading yet, and the scheme is simple, can show the promotion sky effect of simulation simultaneously.

The light emitting surface of the light emitting member 40 faces the reflecting member 30, and the first reflecting surface and the second reflecting surface are connected to each other. The first reflecting surface and the second reflecting surface are continuous, so that the influence on the light-emitting uniformity of the diffusion plate 20 can be avoided. Specifically, the first reflecting surface and the second reflecting surface are integrally formed.

The second reflecting surface is a concave arc surface, and is used for reflecting and converging the emergent light from the light emitting element 40 and then emitting the emergent light to the outside of the shell 10 through the diffusion plate 20. The light beam can be converged through the arrangement of the arc-shaped surface, and then the luminous flux or the light intensity is improved, so that the problem that the luminous flux or the light intensity received by the second reflecting surface far away from one side of the luminous piece 40 is smaller than that of the first reflecting surface close to one side of the luminous piece 40 is solved, and the sky illumination simulation effect can be further improved through the arrangement.

The included angle between the main beam axis of the light emitting element 40 and the top wall of the housing 10 is between 10 ° and 60 °, the included angle between the first reflecting surface and the top wall of the housing 10 is between 0 ° and 10 °, and the included angle between the second reflecting surface and the top wall of the housing 10 is greater than 0 ° and less than or equal to 60 °. The arrangement can effectively ensure the effect of light beam reflection, reduce the light beams which are not reflected, and further improve the irradiation effect.

The principal axis of the light beam is the light emitting direction of the light emitting element, and is also referred to as the optical axis.

Preferably, the second reflecting surface forms an angle of between 10 ° and 45 ° with the top wall of the housing 10. Specifically, in the present embodiment, since the second reflecting surface is an arc surface, the angle between any tangent line of the second reflecting surface and the top wall of the housing 10 is between 10 ° and 45 °.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (16)

1. A simulated sky lighting device, comprising:

the LED lamp comprises a shell (10), wherein a light outlet (11) is formed in the bottom wall of the shell (10);

a diffusion plate (20) arranged at the light outlet (11);

a reflecting member (30) provided on the inner surface of the top wall of the housing (10);

the light emitting piece (40) is obliquely arranged in the shell (10) and is positioned at the side part of the light outlet (11), at least part of emergent light rays emitted by the light emitting piece (40) are reflected by the reflecting piece (30) to obtain reflected light rays, and the reflected light rays are emitted to the outside of the shell (10) through the scattering plate (20);

the light blocking piece (50) is arranged in the shell (10) and is connected with the bottom wall of the shell (10), and the light blocking piece (50) is positioned between the diffusion plate (20) and the light emitting piece (40).

2. A simulated sky lighting device according to claim 1, characterized in that a vertical distance t1 between the light emitting element (40) and the plane in which the light outlet (11) is located, a height h of the light blocking element (50), a length w of the light outlet (11), a minimum distance d1 between the light outlet (11) and the light blocking element (50) and a distance d2 between the light blocking element (50) and a side wall of the housing (10) in which the light emitting element (40) is arranged are:

3. the sky lighting device according to claim 1, wherein the height h of the light blocking member (50) is greater than or equal to the distance between the lowest point of the light emitting surface of the light emitting member (40) and the plane where the light emitting opening (11) is located.

4. A simulated sky lighting device according to claim 1, characterized in that a distance between the light emitting element (40) and the light outlet (11) is vertical t1, a height t2 of the housing (10), a beam angle δ of the light emitting element (40), an angle θ between a beam principal axis of the light emitting element (40) and a plane in which the reflecting element (30) is located, a minimum distance d1 between the light outlet (11) and the light blocking element (50) and a distance d2 between the light blocking element (50) and a side wall of the housing (10) in which the light emitting element (40) is arranged are as follows:

(t2-t1+t2)×tan(90°-δ/2-θ)≤d1+d2。

5. a simulated sky lighting device according to claim 1, characterized in that the distance t1 between the light emitting element (40) and the light outlet (11), the angle θ between the beam principal axis of the light emitting element (40) and the reflecting element (30), the length w of the light outlet (11), the minimum distance d3 between the light outlet (11) and the projection of the light emitting element (40) on the bottom wall of the housing (10) are:

t1×tan(90+θ-δ/2)≥w+d3。

6. a simulated sky lighting device according to claim 1, characterized in that a distance t1 between the light emitting element (40) and the light outlet (11), a height t2 of the housing (10), an angle θ between a center line of the light emitting element (40) and the reflecting element (30), a length w of the light outlet (11), a minimum distance d1 between the light outlet (11) and the light blocking element (50) and a distance d2 between side walls of the housing (10) where the light emitting element (40) is arranged are as follows:

(t2-t1+t2)×tan(90°-θ+δ/2)≥w+d1+d2。

7. a simulated sky lighting device according to claim 1, wherein the reflecting element (30) comprises a low beam end and a high beam end, the projection of the low beam end on the plane of the light outlet (11) and the projection of the light emitting element (40) on the plane of the light outlet (11) are at a distance b1 between the light emitting element (40) and the light outlet (11), a height t2 of the housing (10), an included angle θ between a center line of the light emitting element (40) and the reflecting element (30), and a beam angle δ of the light emitting element (40) are as follows:

(t2-t1)×tan(90°-δ/2-θ)≥b1。

8. a simulated sky lighting device according to claim 1, wherein the reflecting element (30) comprises a low beam end and a high beam end, the projection of the high beam end on the plane of the light outlet (11) and the projection of the light emitting element (40) on the plane of the light outlet (11) are at a distance b2, a distance t1 between the light emitting element (40) and the light outlet (11), a height t2 of the housing (10), an included angle θ between a center line of the light emitting element (40) and the reflecting element (30), and a beam angle δ of the light emitting element (40) are as follows:

(t2-t1)×tan(90°+δ/2-θ)≤b2。

9. a simulated sky lighting device according to claim 1, wherein the lighting element (40) is arranged on a side wall of the housing (10), the reflecting element (30) is arranged on a top wall of the housing (10), and a light emitting surface of the lighting element (40) is arranged towards the reflecting element (30).

10. A simulated sky lighting device according to claim 1, wherein the beam principal axis of said lighting element (40) is at an angle of between 10 ° and 60 ° to said reflecting element (30).

11. A simulated sky lighting device according to claim 1, wherein the angle between the reflecting element (30) and the plane of the light outlet (11) is between 0 ° and 15 °.

12. A simulated sky lighting device as claimed in claim 1, wherein said reflecting member (30) is located in a region where said light exit (11) is located in a projection of a plane where said light exit (11) is located, and the remaining part is located outside said region where said light exit (11) is located.

13. A simulated sky lighting device as claimed in claim 1, wherein said reflective element (30) comprises a first reflective surface and a second reflective surface, an angle between a principal axis of a beam of said light emitting element (40) and said first reflective surface being smaller than an angle between said principal axis of said beam and said second reflective surface, said second reflective surface being located on a side of said reflective element (30) remote from said light emitting element (40).

14. A simulated sky lighting device as claimed in claim 13, wherein said second reflecting surface is a concave arc surface for reflecting and converging outgoing light from said light emitting element (40) and emitting it out of said housing (10) through said diffuser plate (20).

15. A simulated sky light device as claimed in claim 14, wherein the curvature of the side of said second reflecting surface remote from said light emitting element (40) is greater than the curvature of the side of said second reflecting surface proximate to said light emitting element (40).

16. A simulated sky lighting device as claimed in claim 13, wherein said light-emitting element (40) has a beam principal axis at a side thereof remote from said light-emitting element (40) which is greater than said beam principal axis at a side thereof adjacent said light-emitting element (40).

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