Illumination structure without ghosting

Abstract

The ghosting-free illumination structure comprises a lamp set installation plate, a lens panel and a light-emitting assembly, a cavity is formed between the lamp set installation plate and the lens panel, the light-emitting assembly is arranged in the cavity and is opposite to the lens panel, a light polarization protruding block is arranged on the upper end face of the lens panel, and the light polarization protruding block is arranged in the cavity. The outer end face of one side of the polarized light protruding block is an incident light face, the inner end face of the other side of the polarized light protruding block is a reflected light face, the lower end face of the lens panel is a micro lens body, one side of the micro lens body is a short arc face, and the other side of the micro lens body is a long arc face. The light emitted by the light-emitting assemblies is divided into a plurality of micro-lens channels through the small lens group composed of the micro-lens bodies, so that ghosting is continuous, the ghosting problem is basically eliminated, in addition, polarization is increased through the arrangement of the polarization protruding blocks, the illuminance uniformity of an illumination field is improved, the utilization rate of the light is greatly improved, and the light-emitting efficiency is improved. And the micro lens bodies also play roles of light mixing and light polarization, so that the illumination uniformity is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of lighting equipment, and in particular to a lighting structure without ghosting. Background Art

[0002] At present, various lighting equipments are widely used in people's lives as auxiliary lighting fixtures. Among them, table lamps are generally equipped with lampshades composed of LED lamp beads and multiple lenses. The light emitted by the LED lamp beads is irradiated through small semicircular lenses. However, since the lenses are composed of multiple lenses, the problem of double images of the illuminated objects can only be alleviated to a certain extent. However, the shadows formed by each lens irradiating the illuminated object cannot overlap, resulting in the formation of double images. For example, Figure 1 The ghosting problem shown is due to the light source emitting light at 180°, such as Figure 2 This part of light within the α angle cannot be deflected to the desktop through refraction, which will lead to insufficient desktop illumination and low light utilization, which is a problem that we urgently need to solve. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a ghost-free lighting, which solves the technical problem that the shadows formed by each lens irradiating the object cannot overlap, resulting in the formation of ghost images, because the lens is composed of a plurality of lenses.

[0005] (II) Technical solution

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] An embodiment of the present invention provides a ghost-free lighting structure, comprising a lamp group mounting plate, a lens panel arranged at the lower end of the lamp group mounting plate, and a light-emitting component, wherein a cavity is arranged between the lamp group mounting plate and the lens panel, and the light-emitting component is arranged in the cavity and opposite to the lens panel; a polarizing bump is arranged on the upper end surface of the lens panel, an outer end surface on one side of the polarizing bump is an incident light surface, and an inner end surface on the other side of the polarizing bump is a reflecting light surface; the lower end surface of the lens panel is a microlens body, one side of the microlens body is a short arc surface, and the other side of the microlens body is a long arc surface.

[0008] Preferably, the incident light surface and the reflected light surface meet the following measurement parameters: K(i) is the tangent line of the i-th point on the reflection curve of the polarizing convex block, which can be obtained by the incident unit vector and the outgoing unit vector;

[0009] R(i) is the distance from the light source to the incident light surface of the polarizing convex block, which is the horizontal coordinate;

[0010] L(i) is the longitudinal coordinate of the incident light surface;

[0011] θ(i) is the angle between the outgoing light and the normal of the reflecting surface, satisfying:

[0012]

[0013] Y (i+1) =(X (i+1) –R (i) )*tanθ(i)+L(i).

[0014] Preferably, the microlens body is a three-dimensional wave-shaped microstructure, a honeycomb bead surface, a Fermat spiral bead surface, a Thiessen polygon bead surface, a sun-textured microstructure, or the like.

[0015] Preferably, the number of the polarizing bumps is more than 2, and light-emitting components are arranged between each of the polarizing bumps.

[0016] Preferably, the light reflecting surface is a curved surface.

[0017] Preferably, the number of the microlenses is more than 2, and the microlenses are arranged continuously to form a small lens group.

[0018] Preferably, the upper end surface of the polarizing protrusion is a curved surface.

[0019] Preferably, the polarizing protrusion is an asymmetric structure.

[0020] Preferably, the incident light plane is inclined downward from right to left by 90 to 100 degrees from the upper end surface of the polarizing protrusion.

[0021] Preferably, the light reflecting surface extends from the upper end surface of the polarizing protrusion from left to right and downward in an arc shape.

[0022] (III) Beneficial effects

[0023] The beneficial effects of the present invention are as follows: the ghost-free lighting structure of the present invention divides the light emitted by multiple light-emitting components into a plurality of microlens channels through a small lens group composed of a microlens body, so that the ghosting is continuous, so that the ghosting problem is basically eliminated, and in addition, the setting of the polarizing bump increases the polarization, improves the uniformity of the illumination field, greatly improves the utilization rate of the light, and the microlens body also plays a role in mixing and polarizing light, further improving the uniformity of the illumination. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of a semicircular lens in the prior art in an embodiment of the present invention;

[0025] Figure 2The light source in the prior art in the embodiment of the present invention is a 180° light-emitting lens, which is a schematic diagram showing that the part of light within the angle α cannot be deflected to the desktop by refraction;

[0026] Figure 3 is an overall structural diagram of an embodiment of the present invention;

[0027] Figure 4 A half-section diagram of the overall structure in an embodiment of the present invention;

[0028] Figure 5 In the embodiment of the present invention Figure 4 A in the enlarged view;

[0029] Figure 6 In the embodiment of the present invention Figure 4 The enlarged view at B in the figure shows the trajectory of the measured light 9 after it passes through the incident light surface in the polarizing convex block and then is reflected by the reflecting light surface.

[0030] [Description of Reference Numerals]

[0031] 1. Lamp assembly mounting plate; 2. Light-emitting component; 3. Cavity; 4. Lens panel; 5. Polarized bump; 51. Incident light surface; 52. Reflected light surface; 6. Lens body; 61. Long arc surface; 62. Short arc surface; 7. Highest point; 8. Semicircular lens; 9. Light; 10. Illuminated object; 11. Ghosting. DETAILED DESCRIPTION

[0032] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0033] like Figure 1 As shown in the prior art, the light 9 is scattered again by the semicircular lens 8, which reduces the ghost image 11 of the illuminated object 10 relative to the light 9 emitted by ordinary lighting. However, the problem of the ghost image 11 still exists. Figure 2 From the displayed content, it can be seen that the light emitted by the light-emitting component 2 will form an α-angle range, and the light on the irradiated surface will deviate from the desktop, causing this part of the light to not be effectively utilized, and the existing lighting structure cannot control this part of the light within a reasonable lighting range to achieve full utilization of the light.

[0034] See also Figures 2 to 6The present embodiment provides a ghost-free lighting structure, comprising a lamp assembly mounting plate 1, a lens panel 4 disposed at the lower end of the lamp assembly mounting plate 1, and a light emitting component 2, a cavity 3 is disposed between the lamp assembly mounting plate 1 and the lens panel 4, and the light emitting component 2 is disposed in the cavity 3 and opposite to the lens panel 4;

[0035] The upper end surface of the lens panel 4 is convexly arranged upward to form a polarizing convex block 5, the upper end surface of the polarizing convex block 5 is an arc-shaped surface, the outer end surface of one side of the polarizing convex block 5 is an incident light surface 51, and the inner end surface of the other side of the polarizing convex block 5 is a reflecting light surface 52, and the reflecting light surface 52 is an arc surface. When the light 9 enters the polarizing convex block 5 from the incident light surface 51, when the light 9 passes through the reflecting light surface 52, part of the light 9 will be reflected from the reflecting light surface 52, which increases the stroke of the light 9 inside the polarizing convex block 5, so that the light 9 can have enough stroke to be polarized and mixed, thereby improving the uniformity of the illumination;

[0036] According to the above content and further combined with parameter calculation, the incident light surface 51 and the reflected light surface 52 meet the following calculation parameters: Taking K(i) as the tangent of the i-th point on the reflection curve of the polarizing convex block 5, the incident unit vector and the outgoing unit vector can be obtained:

[0037] R(i) is the distance from the light source to the incident light surface 51 of the polarizing projection 5, i.e., the horizontal coordinate;

[0038] L(i) is the longitudinal coordinate of the incident light surface 51;

[0039] θ(i) is the angle between the outgoing light and the normal of the reflecting surface 52, and its formula satisfies:

[0040]

[0041] Y (i+1) =(X (i+1) -R (i) )*tanθ(i)+L(i).

[0042] Among them, the desktop illumination distribution and light utilization are taken as optimization targets, and the light-emitting components are LED light beads as an example. Figure 4 It can be seen that part of the light 9 emitted by the LED light bead passes through the incident light surface 51 to form an irradiation surface with an angle range of α in the polarizing protrusion 5, and then reaches the reflecting light surface 52. According to the various parameters of the above-mentioned parameterized light refraction, the light 9 emitted by the LED light bead is refracted from the incident light surface 51 and then from the reflecting light surface 52 back to the space on the desktop, and then passes through the polarizing protrusion 52. Figure 6 It can be seen that the light 9 on the irradiated surface within the angle range of α is polarized. By measuring the above parameters, the trajectory of the light 9 is rationally designed, which greatly improves the uniformity of the illuminance of the illuminated light field and further improves the efficiency of light use.

[0043] The lower end surface of the lens panel 4 is a microlens body 6, with the highest point 7 of the microlens body 6 as the center, one side of the microlens body 6 is a short arc surface 62, and the other side of the microlens body 6 is a long arc surface 61. The number of microlens bodies 6 is more than 2. In the continuous microlens bodies 6, the light 9 passed by the short arc surface 62 of one microlens body 6 and the long arc surface 61 of another microlens body 6 will be mixed and polarized again, which is equivalent to forming a mixed light scattering state when the light 9 passes through a large number of microlenses 6, further improving the uniformity of the illumination.

[0044] In this embodiment, the incident light surface 51 and the reflecting light surface of the polarizing projection 5 are designed accordingly according to the above parameters, wherein the incident light surface 51 is a short slope surface, and the reflecting light surface 52 is a long slope surface.

[0045] In this embodiment, the microlens body 6 is a three-dimensional wave-shaped microstructure, a honeycomb bead surface, a Fermat spiral bead surface, a Thiessen polygon bead surface, a sun-textured microstructure, or the like.

[0046] In this embodiment, the number of the light emitting components 2 is more than 2, and the light emitting components 2 are LED lamp beads.

[0047] In this embodiment, the number of the polarizing bumps 5 is more than two, and light emitting components 2 are disposed between each pair of the polarizing bumps 5 . The light 9 emitted by the light emitting components 2 will be mixed in the polarizing bumps 5 .

[0048] In this embodiment, the polarizing protrusion 5 is an asymmetric structure.

[0049] In this embodiment, the incident light surface 51 is inclined downward from the upper end surface of the polarizing protrusion 5 by 90 to 100 degrees from right to left.

[0050] In this embodiment, the light reflecting surface 52 extends from the upper end surface of the polarizing protrusion 5 from left to right and downward in an arc shape.

[0051] In this embodiment, the light emitted by multiple light-emitting components is divided into a large number of microlens channels by a small lens group composed of a microlens body, so that the double images are continuous (i.e., overlapped). In addition, the setting of the polarizing bump increases the polarization. By setting the light trajectory parameters of the incident light surface and the reflected light surface of the polarizing bump to control the reflection trajectory of the light, the light within the α angle is precisely controlled, and this part of the light is fully reflected onto the desktop, thereby improving the uniformity of the illumination field, greatly improving the utilization rate of the light, and basically eliminating the double images. In addition, the microlens body also plays a role in mixing and polarizing light, further improving the uniformity of the illumination.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lighting structure without ghosting, comprising a lamp assembly mounting plate (1), a lens panel (4) arranged at the lower end of the lamp assembly mounting plate (1), and a light emitting component (2), wherein a cavity (3) is arranged between the lamp assembly mounting plate (1) and the lens panel (4), and the light emitting component (2) is arranged in the cavity (3) and opposite to the lens panel (4), characterized in that: The upper end surface of the lens panel (4) is provided with a polarizing convex block (5); the outer end surface of one side of the polarizing convex block (5) is an incident light surface (51); the inner end surface of the other side of the polarizing convex block (5) is a reflecting light surface (52); the reflecting light surface (52) reflects the light trajectory; the lower end surface of the lens panel (4) is a microlens body (6); one side of the microlens body (6) is a short arc surface (62); and the other side of the microlens body (6) is a long arc surface (61).

2. The ghost-free lighting structure according to claim 1, characterized in that: The incident light surface (51) and the reflected light surface (52) meet the following measurement parameters: K(i) is the tangent line of the i-th point on the reflection curve of the polarized bump, which can be obtained by the incident unit vector and the outgoing unit vector; R(i) is the distance from the light source to the incident light surface of the polarizing convex block, which is the horizontal coordinate; L(i) is the longitudinal coordinate of the incident light surface; θ(i) is the angle between the outgoing light and the normal of the reflecting surface, satisfying: Y (i+1) =(X (i+1) -R (i) )*tanθ(i)+L(i)。 3. The ghost-free lighting structure according to claim 1, characterized in that: The microlens body (6) is a three-dimensional wave-shaped microstructure, a honeycomb bead surface, a Fermat spiral bead surface, a Thiessen polygon bead surface, a sun-textured microstructure, or the like.

4. The ghost-free lighting structure according to claim 1, characterized in that: The number of the polarizing convex blocks (5) is more than two, and light-emitting components (2) are arranged between each of the polarizing convex blocks (5).

5. The ghost-free lighting structure according to claim 1, wherein: The light reflecting surface (52) is a curved surface.

6. The ghost-free lighting structure according to claim 1, characterized in that: The number of the microlens bodies (6) is more than 2, and the microlens bodies (6) are arranged continuously to form a small lens group.

7. The ghost-free lighting structure according to claim 1, characterized in that: The upper end surface of the polarizing projection (5) is an arc-shaped surface.

8. The ghost-free lighting structure according to claim 1, characterized in that: The polarizing protrusion (5) is of an asymmetric structure.

9. The ghost-free lighting structure according to claim 1, characterized in that: The incident light surface is inclined downward from the upper end surface of the polarizing protrusion by 90 to 150 degrees from right to left.

10. The ghost-free lighting structure according to claim 1, characterized in that: The light reflecting surface extends from the upper end surface of the polarizing protrusion from left to right and downward in an arc shape.

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