A night sky simulation module and a blue sky lamp

Abstract

The utility model relates to lighting lamp technical field especially relates to a night sky simulation module and blue sky lamp. Night sky simulation module includes base frame, light source group, scattering light guide plate and light absorption unit. Light source group sets up in the inside of base frame, scattering light guide plate sets up in the inside of base frame, and the light emitting surface of light source group is towards the light entrance surface of scattering light guide plate. Light absorption unit is arranged between the reflection surface of base frame and scattering light guide plate, and the wall surface of light absorption unit towards scattering light guide plate is black light absorption surface. Adopting the utility model, can present the background effect of clear night sky, satisfy the visual demand of user to night sky.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a night sky simulation module and a blue sky lamp. Background Technology

[0002] Among existing lighting devices, the Skylight (also known as the Sky lamp or Blue Sky lamp) is a lighting device that can simulate the visual effect of the sky. It can provide a skylight-like lighting effect for indoor spaces that cannot be illuminated by sunlight, providing users with a comfortable visual experience.

[0003] Most existing blue sky lights use a light source to obliquely illuminate a Rayleigh diffuser to simulate the visual effect of a blue sky during the day, but they cannot simulate the visual effect of a night sky and cannot meet users' visual needs for a night sky. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a night sky simulation module and a blue sky light, which can simulate the effect of a clear night sky and meet users' visual needs for the night sky.

[0005] To solve the above-mentioned technical problems, this utility model provides a night sky simulation module, comprising:

[0006] Base frame;

[0007] The light source assembly is located inside the base frame;

[0008] A light-scattering guide plate is disposed inside the base frame, with the light-emitting surface of the light source group facing the light-incident surface of the light-scattering guide plate;

[0009] A light-absorbing unit is disposed between the base frame and the reflective surface of the light-scattering plate, and the wall surface of the light-absorbing unit facing the light-scattering plate is a black light-absorbing surface.

[0010] As an improvement to the above solution, the light-absorbing unit is a black light-absorbing velvet cloth or a black light-absorbing film.

[0011] As an improvement to the above solution, the black light-absorbing surface is provided with multiple reflective points, and the light emission direction of the reflective points is towards the light-scattering guide plate.

[0012] As an improvement to the above scheme, the reflective point is a microlens, the reflective surface of the microlens faces the scattering light guide plate, and the diameter of the microlens is 50μm-200μm.

[0013] As an improvement to the above scheme, the reflective dots are phosphor dots.

[0014] As an improvement to the above scheme, a semi-transparent and semi-reflective plate is arranged between the scattering light guide plate and the light absorption unit.

[0015] As an improvement to the above solution, the light source group includes a first light source and a second light source symmetrically arranged on both sides of the scattering light guide plate, and the color temperature range of the first light source and the second light source is 5000K-12000K.

[0016] As an improvement to the above solution, the light incident surface of the scattering light guide plate is located on the side of the scattering light guide plate, and a preset distance is formed between the light emitting surface of the first light source and the light incident surface of the scattering light guide plate, the preset distance being 1mm-3mm; the preset distance is also formed between the light emitting surface of the second light source and the light incident surface of the scattering light guide plate.

[0017] As an improvement to the above solution, the sidewall of the base frame is provided with a plurality of bendable limiting buckles at intervals, the bending direction of the limiting buckles being towards the inside of the base frame or away from the inside of the base frame.

[0018] Accordingly, this utility model also provides a night sky lamp, including a housing and a night sky simulation module as described in any one of the above, wherein the night sky simulation module is disposed inside the housing.

[0019] Implementing this utility model has the following beneficial effects:

[0020] In this embodiment, the light-scattering guide plate can scatter and refract the light from the light source in multiple segments. Some of the light can form a superimposed blue sky ambient light on the light-emitting surface of the light-scattering guide plate, while the other part of the light is refracted and directed to the light-absorbing unit. The light-absorbing unit can absorb this part of the light through the black light-absorbing surface, so that the night sky simulation module can present a background effect similar to the night sky to meet the user's visual needs for the night sky. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural schematic diagram of the night sky simulation module in this utility model;

[0022] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is a schematic diagram showing the positional distribution of the microlenses in the light-absorbing unit of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0025] In one embodiment of this utility model, such as Figures 1 to 3 As shown, the night sky simulation module includes a base frame 1, a light source group 2, a light-scattering guide plate 3, and a light-absorbing unit 4. The light source group 2 is disposed inside the base frame 1, and the light-scattering guide plate 3 is disposed inside the base frame 1, with the light-emitting surface of the light source group 2 facing the light-incident surface of the light-scattering guide plate 3. The light-absorbing unit 4 is disposed between the reflective surface of the base frame 1 and the light-scattering guide plate 3, and the wall surface of the light-absorbing unit 4 facing the light-scattering guide plate 3 is a black light-absorbing surface 41. The light-scattering guide plate 3 is preferably a Rayleigh light-scattering guide plate 3.

[0026] In this embodiment, the light scattering plate 3 can scatter and refract the light from the light source in multiple segments. Some of the light can form a superimposed blue sky ambient light on the light-emitting surface of the light scattering plate 3, while the other part of the light is refracted and directed to the light-absorbing unit 4. The light-absorbing unit 4 can absorb this part of the light through the black light-absorbing surface 41, so that the night sky simulation module can present a background effect similar to the night sky to meet the user's visual needs for the night sky.

[0027] In some optional embodiments, the light-absorbing unit 4 is a black light-absorbing velvet or a black light-absorbing film to ensure that the light-absorbing unit 4 has low reflectivity, ensuring the formation of a deep dark background and ensuring the simulation effect of the night sky substrate using the light-absorbing unit 4. At the same time, the black light-absorbing velvet or black light-absorbing film can adapt to the reflective surface shape of the light-scattering guide plate 3 to simplify the assembly steps of the light-absorbing unit 4 and the light-scattering guide plate 3.

[0028] In some optional embodiments, to further improve the realism of the night sky simulation module, such as... Figure 2 and Figure 3 As shown, a plurality of reflective points 42 are dispersed on the black light-absorbing surface 41, and the light emission direction of the reflective points 42 is towards the scattering light guide plate 3. When light shines on the plurality of reflective points 42 on the black light-absorbing surface 41, a plurality of discretely distributed reflective spots can be formed on the black light-absorbing surface 41. The reflective points 42 correspond to the simulated star emission effect in the night sky. Thus, the simulated star emission effect of the reflective points 42 can be combined with the night sky background effect presented by the black light-absorbing surface 41 to further improve the realism of the night sky simulation module.

[0029] Specifically, the reflective point 42 is a microlens 421. The reflective surface of the microlens 421 faces the scattering light guide plate 3. When another part of the light shines on the light-absorbing unit 4, the microlens 421 can reflect the light at its location, thereby forming a bright spot at the location of the microlens 421 and shooting the bright spot out from the scattering light guide plate 3. In order to use the reflected light of the microlens 421 to correspond to the bright main star in the night sky, improve the realism of the night sky simulation module in simulating the night sky.

[0030] Preferably, the diameter of the microlens 421 is 50μm-200μm to ensure that the microlens 421 can form a star-like angular size, avoiding excessively large reflected light spots from the microlens 421 that would cause blurring after passing through the scattering light guide plate 3. It should be noted that the microlenses 421 shown in the figure are all magnified.

[0031] Furthermore, to further improve the realism of the night sky simulation module, the reflective point 42 is a phosphor point. The phosphor point is activated by the light shining on it, so that it can correspond to the starry effect in the night sky. This, together with the bright main star effect simulated by the microlens 421, further improves the realism of the night sky simulation module.

[0032] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, a semi-transparent and semi-reflective plate 5 is arranged between the scattering light guide plate 3 and the light absorption unit 4. The semi-transparent and semi-reflective plate 5 can further refract and reflect the light refracted by the scattering light guide plate 3 to the light absorption unit 4, so as to further increase the superposition of the blue sky ambient light on the light-emitting surface of the scattering light guide plate 3 and further improve the three-dimensional effect of the sky simulation module.

[0033] In some alternative embodiments, such as Figure 1 As shown, the light source group 2 includes a first light source 21 and a second light source 22 symmetrically arranged on both sides of the scattering light guide plate 3, so as to use the first light source 21 and the second light source 22 to symmetrically illuminate the scattering light guide plate 3, ensure the uniformity of light on both sides of the scattering light guide plate 3, avoid the appearance of areas with obvious light and dark distribution inside the scattering light guide plate 3, thereby improving the light output effect of the night light simulation module.

[0034] The color temperature range of the first light source 21 and the second light source 22 is 5000K-12000K, wherein the preferred color temperature of the first light source 21 and the second light source 22 is 7500K, in order to improve the blue light ratio of the light-emitting surface of the night light simulation module, retain effective scattered light, and maximize the sense of depth of the night sky.

[0035] The light-incident surface of the scattering light guide plate 3 is located on the side of the scattering light guide plate 3. A preset distance is formed between the light-emitting surface of the first light source 21 and the light-incident surface of the scattering light guide plate 3. The preset distance is 1mm-3mm, preferably 1mm. The second light source 22 also forms a preset distance with the light-incident surface of the scattering light guide plate 3 to ensure that the light from the first light source 21 and the second light source 22 can be uniformly irradiated into the interior of the scattering light guide plate 3, avoiding light efficiency loss and improving the light utilization efficiency of the scattering light guide plate 3. At the same time, when the first light source 21 and the second light source 22 are heated and expanded due to light emission, the scattering light guide plate 3 will not squeeze the first light source 21 and the second light source 22, ensuring the working safety of the first light source 21 and the second light source 22.

[0036] In some optional embodiments, the sidewalls of the base frame 1 are provided with a plurality of bendable limiting buckles at intervals, the bending direction of which is towards or away from the interior of the base frame 1. Therefore, when installing the light-scattering plate 3, the limiting buckles can be bent away from the interior of the base frame 1 to allow the light-scattering plate 3 to be placed inside the base frame 1, improving the assembly convenience of the light-scattering plate 3; subsequently, the limiting buckles can be bent towards the interior of the base frame 1 to limit the position of the light-scattering plate 3 inside the base frame 1, ensuring the assembly stability of the light-scattering plate 3.

[0037] Accordingly, this utility model also provides a blue sky lamp, which includes a housing and a night sky simulation module as described in any one of the above-mentioned embodiments, the night sky simulation module being disposed inside the housing. The blue sky lamp possesses all the beneficial effects of the aforementioned night sky simulation module, achieving a simulated clear night sky effect and satisfying users' visual needs for the night sky.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A night sky simulation module, characterized in that, include: Base frame; The light source assembly is located inside the base frame; A light-scattering guide plate is disposed inside the base frame, with the light-emitting surface of the light source group facing the light-incident surface of the light-scattering guide plate; A light-absorbing unit is disposed between the base frame and the reflective surface of the light-scattering plate, and the wall surface of the light-absorbing unit facing the light-scattering plate is a black light-absorbing surface.

2. The night sky simulation module of claim 1, wherein, The light-absorbing unit is a black light-absorbing velvet or a black light-absorbing film.

3. The night sky simulation module of claim 1, wherein, The black light-absorbing surface has multiple reflective points distributed around it, and the light emission direction of the reflective points is towards the light-scattering guide plate.

4. The night sky simulation module of claim 3, wherein the light source is a laser. The reflective point is a microlens, the reflective surface of the microlens faces the light-scattering guide plate, and the diameter of the microlens is 50μm-200μm.

5. The night sky simulation module as described in claim 3, characterized in that, The reflective dots are phosphor dots.

6. The night sky simulation module of claim 1, wherein, A semi-transparent, semi-reflective plate is arranged between the light-scattering guide plate and the light-absorbing unit.

7. The night sky simulation module of claim 1, wherein, The light source group includes a first light source and a second light source symmetrically arranged on both sides of the light guide plate, and the color temperature range of the first light source and the second light source is 5000K-12000K.

8. The night sky simulation module of claim 7, wherein the light source is a light emitting diode. The light-incident surface of the scattering light guide plate is located on the side of the scattering light guide plate. A preset distance is formed between the light-emitting surface of the first light source and the light-incident surface of the scattering light guide plate, and the preset distance is 1mm-3mm. The preset distance is also formed between the light-emitting surface of the second light source and the light-incident surface of the scattering light guide plate.

9. The night sky simulation module as described in claim 1, characterized in that, The sidewalls of the base frame are provided with a plurality of bendable limiting buckles at intervals, and the bending direction of the limiting buckles is towards the inside of the base frame or away from the inside of the base frame.

10. A clear sky lamp characterized by It includes a housing and a night sky simulation module as described in any one of claims 1 to 9, wherein the night sky simulation module is disposed inside the housing.

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