A sunlight reflecting device for simulating skylight on the roof of a house

Abstract

The present invention belongs to the technical field of optical devices that imitate the light and shadow effects of skylights under natural light, and discloses a sunlight reflection device for simulating skylights on the roof of a house, including a light box outer frame, a skylight light outlet plate fixedly installed on the top of the light box outer frame, three adjustable LED light strips fixedly installed on the inner cavity wall of the light box outer frame, and a first transparent plate and a second transparent plate fixedly installed on the bottom of the inner cavity of the light box outer frame. The present invention installs a shading memory foam close to the position between the adjustable LED light strip and the light homogenizing plate on the light path between the adjustable LED light strip and the light homogenizing plate. When the adjustable LED light strip is irradiated onto the shading memory foam, the light blocked by the shading memory foam can produce a shadow with a clear boundary on the light homogenizing plate, so that it can simulate the projection effect of the skylight frame under the incident angle of sunlight, so that the irradiation effect has a high degree of simulation and the user experience is better.

Description

Technical Field

[0001] The invention belongs to the technical field of optical devices for imitating light and shadow effects of skylights under natural light, and in particular is a sunlight reflecting device for simulating skylights on the roof of a house. Background Art

[0002] An optical device that imitates the light and shadow effects of a skylight under natural light (hereinafter referred to as an imitation skylight) is a luminous device that imitates the effect of natural light from the sky passing through a building skylight in a room, allowing people to feel the open natural blue sky, white clouds and sunshine in an environment without sunlight. Its effect is to relieve the psychological pressure of working and studying under a fast pace. The function of imitating the skylight frame to reflect sunlight is an important factor in enhancing the light and shadow effects of the skylight that matches it, such as Figure 6 As shown, the light emitted by the LED is illuminated onto a diffusion material plate (light homogenizing plate), and the light and shadow effect of the transmitted uniform light output by the diffusion plate can be very close to the reflection of the sunroof frame in a real scene.

[0003] The existing method of imitating the luminous effect of the skylight frame is to use LED lighting to a structural frame that reflects light. The reflected light on the frame can also imitate the light and shadow effects of sunlight irradiating the window frame in real scenes. However, this method is limited by the structure of the imitation device and the influence of stray light. The uniformity of the light spot on the frame is insufficient, especially when imitating the shadow effect where the sunlight cannot reach. The following problems will occur: first, the boundary where the positive and negative sides of the frame meet is not clear enough; second, the angle of the positive and negative boundary line is almost impossible to adjust; third, since the LED emits divergent light that is almost distributed in a hemispherical space, the stray light is very large and can easily interfere with the light and color effects of the skylight. In addition, the color of the frame cannot be adjusted independently as the color of the sunlight changes. These problems have greatly affected the overall effect of the simulated skylight.

[0004] In order to imitate the shadow effect where light cannot reach, it is necessary to adjust the shading area and shading angle of the shading structure, and the adjustment of the shading structure is to simulate the sun's incident angle in a real scene to design the shading plate shape (tilt angle and area), so that it can meet the skylight frame projection effect under different sunlight incident angles. Therefore, the present invention proposes a solution, which can flexibly adjust the projection effect more conveniently. Summary of the invention

[0005] The object of the present invention is to provide a sunlight reflecting device for simulating a skylight on a roof of a house, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sunlight reflecting device for simulating a skylight on the roof of a house, comprising an outer frame of a lamp room, a skylight light outlet plate is fixedly installed on the top of the outer frame of the lamp room, three adjustable LED light strips are fixedly installed on the inner cavity wall of the outer frame of the lamp room, a first transparent plate and a second transparent plate are fixedly installed on the bottom of the inner cavity of the outer frame of the lamp room, a first rectangular shading plate is movably installed between the first transparent plate and the second transparent plate, a second rectangular shading plate is movably sleeved on the inner side of the first rectangular shading plate, two positioning grooves are opened at the bottom of the inner cavity of the outer frame of the lamp room, a rubber strip is arranged at the bottom of the inner wall of the first transparent plate and the second transparent plate A card slot is opened in each part, and a card seat is movably connected in the card slot of the first transparent plate and the second transparent plate, and the inner end of the card seat contacts the bottom end of the second rectangular shading plate, and the top of the card seat is threadedly connected with two screws, and the bottom ends of the screws extend through the card seat to the positioning groove and are squeezed and contacted with the rubber strip at the bottom of the positioning groove. A triangular prism-shaped inner cavity is formed among the outer frame of the lamp room, the first transparent plate, the second transparent plate, the first rectangular shading plate and the second rectangular shading plate, and shading memory foam is arranged in the inner cavity, and a light-homogenizing plate is fixedly installed between the outer frame of the lamp room and the skylight light outlet plate, and the material used for the light-homogenizing plate is acrylic PMMA, PC board, optical glass and other polymers with transmission and scattering effects.

[0007] Preferably, cylindrical protrusions are provided at the corners of the top inner sides of the first transparent plate and the second transparent plate, and circular grooves matching the cylindrical protrusions are provided at both ends of the top of the No. 1 rectangular shading plate, and the No. 1 rectangular shading plate is movably installed with the cylindrical protrusions of the first transparent plate and the second transparent plate through its own circular grooves, and the No. 1 rectangular shading plate can be axially rotated around the cylindrical protrusions.

[0008] Preferably, the first rectangular shading plate has a rectangular inner cavity, and the second rectangular shading plate is movably sleeved in the rectangular inner cavity of the first rectangular shading plate. The second rectangular shading plate can rotate axially around the cylindrical protrusion along with the first rectangular shading plate. Figure 5 As shown, when the rectangular shading plate No. 1 and the rectangular shading plate No. 2 rotate counterclockwise, the bottom end of the rectangular shading plate No. 2 moves to the left relative to the holder, and the inner end of the rectangular shading plate No. 2 retracts deep into the inner cavity of the rectangular shading plate No. 1, so the volume of the triangular prism cavity formed by the outer frame of the lamp chamber, the first transparent plate, the second transparent plate, the rectangular shading plate No. 1 and the rectangular shading plate No. 2 decreases, and the shape changes, and the volume of the squeezed shading memory foam also decreases, and the shape changes.

[0009] Preferably, an upper edge portion is provided on the side of the base facing the second rectangular light shading plate, and an arc-shaped transition surface is provided between the upper edge portion and the surface of the base, the bottom end of the second rectangular light shading plate is an arc surface, and the bottom end of the second rectangular light shading plate is in close contact with the arc-shaped transition surface of the base, and when the first rectangular light shading plate and the second rectangular light shading plate are axially rotated around the cylindrical protrusion, the contact portion between the second rectangular light shading plate and the arc-shaped transition surface of the base is also changing, that is, the bottom end of the second rectangular light shading plate rotates relative to the base, and setting the bottom end of the second rectangular light shading plate to an arc shape and setting an arc-shaped transition surface on one side of the base is conducive to smoother relative rotation of the two.

[0010] Preferably, the opening height of the card slot is adapted to the thickness of the card seat, the card slot is a rectangular groove, the opening length of the card slot is equal to the opening length of the positioning slot, the positioning slot is aligned with the front and rear ends of the card slot, and the maximum range of movement of the card seat along the positioning slot and the extension direction of the card slot is the length of the positioning slot.

[0011] Preferably, the contact portion between the surface of the rubber strip and the screw undergoes elastic deformation, and the bottom surface of the holder is in close contact with the bottom surface of the inner cavity of the outer frame of the lamp chamber. Since the two ends of the holder are in a movable snap-fit ​​relationship with the slot, the holder is limited in the vertical direction and can only be displaced horizontally along the slot. The screw is threadedly connected to the holder and the bottom end of the screw is in squeeze contact with the surface of the rubber strip. As a result, the friction coefficient between the screw and the rubber strip is large, so that the screw fastens the holder, and the holder can no longer move horizontally, and is strictly limited as a whole.

[0012] Preferably, the light homogenizing plate and the skylight light output plate can be installed either at an angle or vertically, and the interference and effect of the color of the sky light output can be reduced by changing the inclination angle. At the same time, during installation, the sunlight input situation is simulated according to the actual application scenario, and the positional relationship between the multiple groups of LED devices and the light homogenizing plate is adjusted so that the transmitted light is evenly distributed.

[0013] Preferably, the surface color of the light-shielding memory foam is black and it is made of polyurethane. The light-shielding memory foam has a strong memory capacity. It is easy to deform when under pressure and will slowly return to its original shape when the pressure is removed. The triangular prism-shaped inner cavity formed by the outer frame of the lamp chamber, the first transparent plate, the second transparent plate, the No. 1 rectangular shading plate and the No. 2 rectangular shading plate is filled with light-shielding memory foam. When the volume of the inner cavity decreases, the volume of the light-shielding memory foam will also decrease with the change of the volume of the inner cavity, and the shape of the light-shielding memory foam will always change with the shape of the inner cavity, and it is always guaranteed to be filled in the inner cavity. The black color can absorb light and isolate light from penetrating through the light-shielding memory foam.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention installs a shading memory foam close to the adjustable LED light bar and the light homogenizing plate on the light path between the adjustable LED light bar and the light homogenizing plate. When the adjustable LED light bar is irradiated onto the shading memory foam, the light blocked by the shading memory foam can produce a shadow with a clear boundary on the light homogenizing plate, so that it can simulate the projection effect of the skylight frame under the incident angle of sunlight, so that the illumination effect has a high degree of simulation and the user experience is better.

[0016] 2. The present invention forms a mechanism that can adjust the shadow area and projection angle by combining the outer frame of the lamp room, the first transparent plate, the second transparent plate, the first rectangular shading plate, the second rectangular shading plate and the shading memory foam. The mechanism mainly utilizes the slow rebound memory of the shading memory foam to change its own volume and shape as the volume and shape of the cavity formed by the outer frame of the lamp room, the first transparent plate, the second transparent plate, the first rectangular shading plate and the second rectangular shading plate change, thereby achieving the adjustment of the illumination shadow area and the projection angle. There is no need to redesign the shading plate to cope with the projection area and projection angle generated by simulating different lighting scenes, which saves time and cost for redesigning the shading plate. The structure is simple to operate and has high reliability.

[0017] 3. The present invention combines adjustable LED light strips with adjustable spectrum and color to illuminate a light homogenizing plate that scatters light after transmission. By adjusting the positional relationship between multiple groups of adjustable LED light strips and the light homogenizing plate, the transmitted light is evenly distributed. Moreover, by adjusting the adjustable LED light strips, the brightness and color of the scattered light output by the light homogenizing plate can be adjusted, making it closer to and more consistent with the light color effect and rules of natural light. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0019] Figure 2 A top view of the skylight light emitting panel of the present invention;

[0020] Figure 3 It is an enlarged view of the partial structure of the first transparent plate and the first rectangular shading plate of the present invention;

[0021] Figure 4 A cross-sectional view of the connection portion of the first transparent plate, the second transparent plate and the first rectangular shading plate of the present invention;

[0022] Figure 5 It is a cross-sectional view of the fixing of the card holder itself and the assembly of the first rectangular shading plate and the second rectangular shading plate of the present invention;

[0023] Figure 6 is a cross-sectional view of the present invention;

[0024] Figure 7It is an enlarged schematic diagram of A of the present invention.

[0025] In the figure: 1. Lamp chamber outer frame; 2. Skylight light outlet panel; 3. Adjustable LED light strip; 4. First transparent plate; 5. Second transparent plate; 6. Positioning groove; 7. No. 1 rectangular shading plate; 8. No. 2 rectangular shading plate; 9. Holder; 10. Screws; 11. Shading memory foam; 12. Rubber strip; 13. Light homogenizing plate; 14. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, in an embodiment of the present invention, a sunlight reflecting device for simulating a skylight on a roof of a house comprises a lamp outer frame 1, a skylight light emitting plate 2 is fixedly installed on the top of the lamp outer frame 1, three adjustable LED light strips 3 are fixedly installed on the inner cavity wall of the lamp outer frame 1, a first transparent plate 4 and a second transparent plate 5 are fixedly installed on the bottom of the inner cavity of the lamp outer frame 1, a first rectangular shading plate 7 is movably installed between the first transparent plate 4 and the second transparent plate 5, and a second rectangular shading plate is movably sleeved on the inner side of the first rectangular shading plate 7 8. Two positioning grooves 6 are provided at the bottom of the inner cavity of the outer frame 1 of the lamp room, and a rubber strip 12 is provided at the bottom of the positioning groove 6. A card slot 14 is provided at the bottom of the inner wall of the first transparent plate 4 and the second transparent plate 5. A card seat 9 is movably carded in the card slot 14 of the first transparent plate 4 and the second transparent plate 5. The inner end of the card seat 9 contacts the bottom end of the second rectangular shading plate 8. Two screws 10 are threadedly connected to the top of the card seat 9. The bottom end of the screw 10 extends through the card seat 9 to the positioning groove 6 and is squeezed and contacted with the rubber strip 12 at the bottom of the positioning groove 6. A triangular prism-shaped inner cavity is formed among the outer frame 1 of the lamp room, the first transparent plate 4, the second transparent plate 5, the first rectangular shading plate 7 and the second rectangular shading plate 8, and a light-shielding memory foam 11 is provided in the inner cavity. A light-diffusing plate 13 is fixedly installed between the outer frame 1 of the lamp room and the skylight light outlet plate 2. The material used for the light-diffusing plate 13 is acrylic PMMA, PC board, optical glass and other polymers with transmission and scattering effects.

[0028] Among them, cylindrical protrusions are arranged at the corners of the top of the inner side surfaces of the first transparent plate 4 and the second transparent plate 5, and circular grooves matching the cylindrical protrusions are opened at both ends of the top of the No. 1 rectangular shading plate 7. The No. 1 rectangular shading plate 7 is movably installed with the cylindrical protrusions of the first transparent plate 4 and the second transparent plate 5 through its own circular grooves, and the No. 1 rectangular shading plate 7 can be axially rotated around the cylindrical protrusions.

[0029] The first rectangular shading plate 7 has a rectangular inner cavity, and the second rectangular shading plate 8 is movably sleeved in the rectangular inner cavity of the first rectangular shading plate 7. The second rectangular shading plate 8 can rotate axially around the cylindrical protrusion along with the first rectangular shading plate 7, such as Figure 5 As shown, when the No. 1 rectangular shading plate 7 and the No. 2 rectangular shading plate 8 rotate counterclockwise, the bottom end of the No. 2 rectangular shading plate 8 moves to the left relative to the holder 9, and the inner end of the No. 2 rectangular shading plate 8 retracts deep into the inner cavity of the No. 1 rectangular shading plate 7, so that the volume of the triangular prism cavity formed by the outer frame 1 of the lamp chamber, the first transparent plate 4, the second transparent plate 5, the No. 1 rectangular shading plate 7 and the No. 2 rectangular shading plate 8 is reduced, and the shape is changed, and the volume of the squeezed shading memory foam 11 is also reduced, and the shape is changed.

[0030] Among them, an upper edge portion is provided on the side of the holder 9 facing the second rectangular light shading plate 8, and an arc-shaped transition surface is provided between the upper edge portion and the surface of the holder 9, the bottom end of the second rectangular light shading plate 8 is an arc surface, and the bottom end of the second rectangular light shading plate 8 is in close contact with the arc-shaped transition surface of the holder 9. When the first rectangular light shading plate 7 and the second rectangular light shading plate 8 rotate axially around the cylindrical protrusion, the contact portion between the second rectangular light shading plate 8 and the arc-shaped transition surface of the holder 9 is also changing, that is, the bottom end of the second rectangular light shading plate 8 rotates relative to the holder 9. Setting the bottom end of the second rectangular light shading plate 8 to an arc shape and setting an arc-shaped transition surface on one side of the holder 9 is conducive to smoother relative rotation of the two.

[0031] Among them, the opening height of the card slot 14 is adapted to the thickness of the card seat 9, the card slot 14 is a rectangular groove, the opening length of the card slot 14 is equal to the opening length of the positioning slot 6, the positioning slot 6 is aligned with the front and rear ends of the card slot 14, and the maximum range of movement of the card seat 9 along the extension direction of the positioning slot 6 and the card slot 14 is the length of the positioning slot 6.

[0032] Among them, the contact part between the surface of the rubber strip 12 and the screw 10 undergoes elastic deformation, and the bottom surface of the holder 9 is in contact with the bottom surface of the inner cavity of the outer frame 1 of the lamp chamber. Since the two ends of the holder 9 are in a movable clamping relationship with the slot 14, the holder 9 is limited in the vertical direction and can only be displaced horizontally along the slot 14. The screw 10 is threadedly connected to the holder 9 and the bottom end of the screw 10 is in squeeze contact with the surface of the rubber strip 12. Therefore, the friction coefficient between the screw 10 and the rubber strip 12 is large, so that the screw 10 buckles the holder 9, and the holder 9 can no longer move horizontally, and the whole is strictly limited.

[0033] Among them, the light homogenizing plate 13 and the skylight light output plate 2 can be installed either tilted or vertically, and the interference and effect of the sky light output color can be reduced by changing its tilt angle. At the same time, during installation, the sunlight input situation is simulated according to the actual application scenario, and the position relationship between multiple groups of LED devices and the light homogenizing plate is adjusted so that the transmitted light is evenly distributed.

[0034] Among them, the surface color of the light-shielding memory foam 11 is black and it is made of polyurethane. The light-shielding memory foam 11 has a strong memory capacity. It is easy to deform when it is under pressure and will slowly return to its original shape when the pressure is removed. The triangular prism-shaped inner cavity formed between the outer frame 1 of the lamp chamber, the first transparent plate 4, the second transparent plate 5, the No. 1 rectangular shading plate 7 and the No. 2 rectangular shading plate 8 is filled with light-shielding memory foam 11. When the volume of the inner cavity decreases, the volume of the light-shielding memory foam 11 will also decrease with the change of the volume of the inner cavity, and the shape of the light-shielding memory foam 11 will always change with the shape of the inner cavity, and it is always guaranteed to be filled in the inner cavity. The black color can absorb light and isolate light from penetrating through the light-shielding memory foam 11.

[0035] Working principle and usage process:

[0036] The brightness and color of the scattered light of the adjustable LED light strip 3 can be adjusted to make it closer to the illumination effect of natural light. In addition, a shading structure formed by a No. 1 rectangular shading plate 7, a No. 2 rectangular shading plate 8 and a shading memory foam 11 is provided on the light path of the first transparent plate 4, the second transparent plate 5 and the light homogenizing plate 13. When the adjustable LED light strip 3 is irradiated onto the shading structure, the light blocked by the shading structure can produce a shadow with clear boundaries on the light homogenizing plate. In the specific design, the shape, inclination angle and area of ​​the shading structure can be adjusted according to the solar incident angle in the real scene, so that it can meet the skylight frame projection effect under different sunlight incident angles. The skylight light outlet panel 2 is a luminous plane that emits sky light, and the color and brightness of the output light are adjustable.

[0037] The tilt angle and shading area of ​​the shading structure can be adjusted by adjusting the first rectangular shading plate 7 and the second rectangular shading plate 8. First, loosen the screw 10 so that the holder 9 can move horizontally along the positioning groove 6. When the shading area needs to be expanded, Figure 5As shown, the holder 9 is moved to the right, and the shading memory foam 11 returns to its original state, which will form a certain thrust to the right on the No. 2 rectangular shading plate 8, so that the bottom end of the No. 2 rectangular shading plate 8 moves to the right along with the holder 9, causing the volume of the cylindrical cavity formed by the outer frame 1 of the lamp room, the first transparent plate 4, the second transparent plate 5, the No. 1 rectangular shading plate 7 and the No. 2 rectangular shading plate 8 to increase, and the inclination angles of the No. 1 rectangular shading plate 7 and the No. 2 rectangular shading plate 8 relative to the horizontal plane are reduced, and the shading memory foam 11 becomes larger and fills the cavity, continuing to play a shading effect, thereby increasing the projection area on the homogenizing plate 13 and reducing the inclination angle of the light. If the shading area needs to be reduced, it is only necessary to reverse the above operations.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sunlight reflecting device for simulating a skylight on a roof of a house, comprising a lamp chamber outer frame (1), characterized in that: A skylight light outlet plate (2) is fixedly installed on the top of the lamp exterior frame (1), three adjustable LED light strips (3) are fixedly installed on the inner wall of the lamp exterior frame (1), a first transparent plate (4) and a second transparent plate (5) are fixedly installed on the bottom of the inner cavity of the lamp exterior frame (1), a first rectangular shading plate (7) is movably installed between the first transparent plate (4) and the second transparent plate (5), a second rectangular shading plate (8) is movably sleeved on the inner side of the first rectangular shading plate (7), and two LED light strips (3) are opened at the bottom of the inner cavity of the lamp exterior frame (1) A positioning groove (6), a rubber strip (12) is arranged at the bottom of the positioning groove (6), a card slot (14) is provided at the bottom of the inner side wall of the first transparent plate (4) and the second transparent plate (5), a card seat (9) is movably connected in the card slot (14) of the first transparent plate (4) and the second transparent plate (5), the inner end of the card seat (9) contacts the bottom end of the second rectangular shading plate (8), the top of the card seat (9) is threadedly connected with two screws (10), the bottom ends of the screws (10) pass through the card seat (9) and extend into the positioning groove (6) and The rubber strip (12) is pressed and contacted with the bottom of the positioning groove (6); a triangular prism-shaped inner cavity is formed between the outer frame of the lamp room (1), the first transparent plate (4), the second transparent plate (5), the first rectangular shading plate (7) and the second rectangular shading plate (8), and a shading memory foam (11) is arranged in the inner cavity; a light homogenizing plate (13) is fixedly installed between the outer frame of the lamp room (1) and the skylight light outlet plate (2); cylindrical protrusions are arranged at the corners of the top of the inner side surfaces of the first transparent plate (4) and the second transparent plate (5); the first rectangular shading plate (7) is provided with a cylindrical protrusion; and the first rectangular shading plate (7) is provided with a cylindrical protrusion. Circular grooves adapted to the cylindrical protrusions are provided at both ends of the top, and the first rectangular light shielding plate (7) is movably installed with the cylindrical protrusions of the first transparent plate (4) and the second transparent plate (5) through its own circular grooves, and the first rectangular light shielding plate (7) can be axially rotated around the cylindrical protrusions; a rectangular inner cavity is provided inside the first rectangular light shielding plate (7), and the second rectangular light shielding plate (8) is movably sleeved in the rectangular inner cavity of the first rectangular light shielding plate (7), and the second rectangular light shielding plate (8) can be axially rotated around the cylindrical protrusions along with the first rectangular light shielding plate (7).

2. The sunlight reflecting device for simulating a skylight on a roof of a house according to claim 1, characterized in that: The card holder (9) is provided with an upper edge portion on the side facing the second rectangular shading plate (8), and the upper edge portion and the surface of the card holder (9) are provided with an arc-shaped transition surface, the bottom end of the second rectangular shading plate (8) is an arc surface, and the bottom end of the second rectangular shading plate (8) is in close contact with the arc transition surface of the card holder (9).

3. The sunlight reflecting device for simulating a skylight on a roof of a house according to claim 1, characterized in that: The opening height of the card slot (14) is adapted to the thickness of the card seat (9); the card slot (14) is a rectangular groove; the opening length of the card slot (14) is equal to the opening length of the positioning slot (6); and the front and rear ends of the positioning slot (6) and the card slot (14) are aligned.

4. The sunlight reflecting device for simulating a skylight on a roof of a house according to claim 1, characterized in that: The contact portion between the surface of the rubber strip (12) and the screw (10) undergoes elastic deformation, and the bottom surface of the holder (9) is in close contact with the bottom surface of the inner cavity of the lamp housing outer frame (1).

5. The sunlight reflecting device for simulating a skylight on a roof of a house according to claim 1, characterized in that: The light homogenizing plate (13) and the skylight light emitting plate (2) are installed obliquely or vertically.

6. The sunlight reflecting device for simulating a skylight on a roof of a house according to claim 1, characterized in that: The light-shielding memory foam (11) has a black surface and is made of polyurethane.

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