CN106931352B

CN106931352B - Exhibition cabinet

Info

Publication number: CN106931352B
Application number: CN201511027218.7A
Authority: CN
Inventors: 刘小云; 何祖平
Original assignee: Ningbo Self Electronics Co Ltd
Current assignee: Ningbo Self Electronics Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2020-01-21
Anticipated expiration: 2035-12-31
Also published as: CN106931352A

Abstract

An exhibition cabinet, said exhibition cabinet comprising a viewing area, and an illuminated face, and a mounting face. The optical design of exhibition cabinet includes that at least one sets up just be located on the installation face by the perpendicular symmetry light-emitting LED lamp directly over of illumination face, and at least one setting is in just be located on the installation face polarization LED lamp between symmetry light-emitting LED lamp and the observation area. The light spots formed on the irradiated surface by the symmetrical light-emitting LED lamps are circular. And light spots formed by the polarized light LED lamp on the irradiated surface are superposed with light spots formed by the symmetrical light-emitting LED lamp on the irradiated surface. The optical design of the exhibition cabinet provided by the invention uses the matching of the symmetrical light-emitting LED lamp and the polarized LED lamp, and the light spots formed by the polarized LED lamp and the symmetrical light-emitting LED lamp in the irradiated area are overlapped, so that the optical effect in the exhibition cabinet avoids double images, and the shopping experience or the viewing effect of a user can be increased.

Description

Exhibition cabinet

Technical Field

The invention relates to the field of lighting equipment, in particular to an exhibition cabinet.

Background

Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the fields of household and commercial illumination because of high light emitting efficiency and good light condensing performance. In places such as exhibition halls, jewelry stores, museums, etc., there are usually some showcases for placing exhibits. Currently, these display cabinets are usually provided with a top light to illuminate the object to be displayed. Such lighting designs often have dark areas that do not provide a good viewing experience for people.

Disclosure of Invention

In view of this, the present invention provides an exhibition cabinet capable of eliminating dark areas and the like which affect user experience, so as to overcome the above disadvantages.

A display cabinet comprises a viewing area for a user to observe, an irradiated surface perpendicularly intersected with the viewing area, and a mounting surface parallel to the irradiated surface and perpendicularly intersected with the viewing area. The exhibition cabinet includes that at least one sets up just be located on the installation face by the perpendicular symmetry light-emitting LED lamp directly over of illuminating surface, and at least one setting is in just be located on the installation face polarization LED lamp between symmetry light-emitting LED lamp and the observation area. The light spots formed on the irradiated surface by the symmetrical light-emitting LED lamps are circular. And light spots formed by the polarized light LED lamp on the irradiated surface are superposed with light spots formed by the symmetrical light-emitting LED lamp on the irradiated surface.

Compared with the prior art, the exhibition cabinet disclosed by the invention has the advantages that the symmetrical light-emitting lamp 11 is matched with the polarized light LED lamp, and light spots formed by the polarized light LED lamp and the symmetrical light-emitting LED lamp in the irradiated area are overlapped, so that the optical effect in the exhibition cabinet is avoided from double images, the brightness in the direction of an observation area is increased, and the shopping experience or the viewing effect of a user can be increased.

Drawings

Embodiments of the invention are described below with reference to the accompanying drawings, in which:

fig. 1 is an exploded view of a display cabinet according to the present invention.

Fig. 2 is a schematic cross-sectional structure and a light path diagram of the display cabinet of fig. 1.

Fig. 3 is a partial enlarged view of fig. 2 at a.

Fig. 4 is a partial enlarged view of fig. 2 at B.

Detailed Description

Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Please refer to fig. 1 and fig. 2, which are schematic block diagrams of an exhibition cabinet 100 according to the present invention. The case of using the showcase 100, such as the showcase 10, should include a viewing area 101 for the user to view, an illuminated surface 102 perpendicularly intersecting the viewing area 101, and a mounting surface 103 parallel to the illuminated surface 102 and perpendicularly intersecting the viewing area 101. The display case 10 is a general case for displaying articles, such as articles commonly found in malls, jewelry stores, museums, etc., and is only used for illustrating the design principle and structure of the present invention. The observation area 101 is used for allowing a user to view and watch an exhibited exhibit through the observation area, and may be a hollow structure or a hollow structure with glass added. The illuminated surface 102 is used for placing exhibits, such as jewelry and the like. The mounting surface 103 is used for mounting a lamp, and is generally disposed right above the irradiated surface 102.

The showcase 100 includes that at least one sets up on the installation face 103 and be located the symmetry light-emitting LED lamp 11 directly over the perpendicular of illuminated face 102 to and at least one setting is in on the installation face 103 and be located polarization LED lamp 12 between symmetry light-emitting LED lamp 11 and the observation area 101. It is naturally conceivable that other auxiliary lamps, such as a soft strip lamp disposed at a corner between the observation area 101 and the mounting surface 103, a bracket for mounting the symmetrical light-emitting LED lamp 11 and the polarized LED lamp 12, a circuit board for providing a circuit, and the like, may be additionally installed in the display case 10.

Referring to fig. 3, the symmetrical light-emitting LED lamp 11 includes a first LED chip 111 and a plano-convex lens 112 disposed in the light-emitting direction of the LED chip 111. The first LED chip 111 is a solid semiconductor device capable of converting electric energy into visible light, and can directly convert electricity into light energy. The center of the first LED chip 111 is disposed on the main optical axis of the plano-convex lens 112, and specifically, the optical axis of the first LED chip 111 coincides with the main optical axis. The plano-convex lens 112 includes a first optical axis 113, a first light source installation portion 114 passing through the first optical axis 113, a first light emitting surface 116, and a first total reflection surface 115 disposed between the first light source installation portion 114 and the first light emitting surface 116. In line with all lenses, each lens comprises an optical axis. In the present invention, the optical axis 113 of the plano-convex lens 112 is used for designing various parameters of the first LED chip 111, and the optical axis 113 is also used for guiding the light path design and the installation of the whole lamp. The optical axis 113 of the planoconvex lens 112 coincides with the optical axis of the first LED chip 111, so that the emergent light of the planoconvex lens 112 is symmetrical. The first light source arrangement 114 is used for arranging a light source, i.e., the first LED chip 111. For the first light source arrangement 114, the first LED chip 111 may be disposed inside the first light source arrangement 114, or may be disposed outside the first light source arrangement 114, that is, the inside or outside of the first light source arrangement 114 may be used as a light source arrangement of a light source. In the present embodiment, the first light source arrangement 114 is a blind hole, and the first LED chip 111 is disposed inside the first light source arrangement 114 to receive as much light as possible. The first light emitting surface 116 is configured to receive the light emitted from the first LED chip 111 and the first total reflection surface 115, and project the light to the irradiated surface 102. For aesthetic reasons, the first light emitting surface 116 is flush with the mounting surface 103. The first total reflection surface 115 is designed according to the law of total reflection, and reflects the received light, and is disposed between the smooth setting portion 111 and the first light emitting surface 116, so that the lens 11 forms a frustum-shaped structure. The light reflected by the first total reflection surface 115 is totally refracted out through the first light emitting surface 116. In order to make the light emitted from the plano-convex lens 112 symmetrical, the first total reflection surface 115 is a revolution surface with the optical axis 113 as a central axis. Symmetric light emission means that a spot formed by the emitted light is circular on a cross section perpendicular to the optical axis 113. In the invention, the light spot of the symmetrical light-emitting LED lamp 11 formed on the irradiated surface is circular. It is understood that when the showcase 10 is long, the symmetrical light-emitting LED lamps may include a plurality of LEDs, forming a row. In the present embodiment, only one symmetrical light-emitting LED lamp 11 is shown to illustrate the structure and operation principle of the present invention. Because the symmetrical light-emitting LED lamp 11 is a main lamp of optical design, the symmetrical light-emitting LED lamp 11 is disposed at a center line of the irradiated surface 102, that is, the first optical axis 113 of the symmetrical light-emitting LED lamp 11 coincides with a center line of the irradiated surface 102 or passes through the center line of the irradiated surface 102.

Referring to fig. 4, the polarized LED lamp 12 includes a second LED chip 121, and a polarized lens 122 disposed in the light emitting direction of the second LED chip 121. The second LED chip 121 has the same structure and light emitting principle as the first LED chip, and thus, will not be described in detail herein. The polarized lens 122 includes a second optical axis 123, a second light source disposition 124, a second light emitting surface 126, and a second total reflection surface 125 disposed between the second light source disposition 124 and the second light emitting surface 126. The second optical axis 123 is the same as the first optical axis 113, and is used for designing various parameters of the first LED chip 121, and meanwhile, the second optical axis 123 is also a guide for designing a light path and installing the whole lamp. The second optical axis 123 is not coincident with the optical axis of the second LED chip 121, but intersects with the optical axis, so as to achieve the purpose of polarization. The polarized light is defined relative to the symmetric light emission, that is, the light emission of the lamp is a circular light spot not centered on the optical axis of the LED chip, but an asymmetric light spot or a non-circular irregular light spot. The second light source arrangement 124 has the same function and structure as the first light source arrangement 114, and is not described herein again. The second light emitting surface 126 should be perpendicular to the mounting surface 103 and the second optical axis 123, but for the sake of appearance, the second light emitting surface 126 is flush with the mounting surface 103, so that the second light emitting surface 126 intersects with the second optical axis 123 and an included angle between the second light emitting surface 126 and the second optical axis 123 is an acute angle θ. The second total reflection surface 125 is also designed according to the law of total reflection, and reflects the received light, and is disposed between the light source installation 121 and the second light emitting surface 126, so that the polarized lens 12 forms a special-shaped frustum structure. The light reflected by the second total reflection surface 125 is totally refracted out through the second light emitting surface 126 and irradiated on the irradiated surface 102. Meanwhile, through the design of the second optical axis 122, the light spot formed on the irradiated surface by the polarized LED lamp 12 coincides with the light spot formed on the irradiated surface by the symmetric light-emitting LED lamp 11, as shown in fig. 2. It will be appreciated that, as with the symmetrically exiting LED lights 11, the symmetrically exiting LED lights may comprise a plurality, forming a row, when the display case 10 is long. In the present embodiment, only one polarized LED lamp 12 is shown to illustrate the structure and operation principle of the present invention.

Compared with the prior art, the exhibition cabinet disclosed by the invention has the advantages that the symmetrical light-emitting lamp 11 is matched with the polarized light LED lamp 12, and light spots formed by the polarized light LED lamp 12 and the symmetrical light-emitting LED lamp 11 in the irradiated area are overlapped, so that the optical effect in the exhibition cabinet is avoided from double images, the brightness in the direction of an observation area is increased, and the shopping experience or the viewing effect of a user can be increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A display case, said display case comprising a viewing area for viewing by a user, an illuminated surface perpendicularly intersecting said viewing area, and a mounting surface parallel to said illuminated surface and perpendicularly intersecting said viewing area, said display case characterized by: the exhibition cabinet comprises at least one symmetrical light-emitting LED lamp arranged on the mounting surface and positioned right above the irradiated surface, and at least one polarized LED lamp arranged on the mounting surface and positioned between the symmetrical light-emitting LED lamp and the observation area, wherein light spots formed on the irradiated surface by the symmetrical light-emitting LED lamp are circular, and light spots formed on the irradiated surface by the polarized LED lamp are superposed with light spots formed on the irradiated surface by the symmetrical light-emitting LED lamp; the polarized light LED lamp comprises a second LED chip and a polarized lens arranged in the light emitting direction of the LED chip, wherein the second optical axis of the polarized lens is intersected with the optical axis of the second LED chip.

2. The showcase of claim 1, wherein: the symmetrical light-emitting LED lamp comprises a first LED chip and a plano-convex lens arranged in the light-emitting direction of the LED chip, wherein the first optical axis of the plano-convex lens coincides with the optical axis of the LED chip.

3. The showcase of claim 2 wherein: the plano-convex lens comprises a first light source arrangement position, a first light-emitting surface and a first total reflection surface arranged between the first light source arrangement position and the first light-emitting surface.

4. The showcase of claim 3, wherein: the first total reflection surface is a revolution surface which takes the first optical axis of the plano-convex lens as a central axis.

5. The showcase of claim 1, wherein: the polarized lens comprises a second light source arrangement position, a second light-emitting surface and a second total reflection surface arranged between the second light source arrangement position and the second light-emitting surface.

6. The showcase of claim 5 wherein: and an included angle between the second light-emitting surface and the optical axis of the second LED chip is an acute angle.

7. The showcase of claim 5 wherein: the second light-emitting surface is flush with the mounting surface.

8. The showcase of claim 1, wherein: the symmetrical light-emitting LED lamp is arranged at the central line position of the irradiated surface.