CN209944182U

CN209944182U - Light projector and atmosphere lamp

Info

Publication number: CN209944182U
Application number: CN201920738617.1U
Authority: CN
Inventors: 范开贤
Original assignee: Modern Precision Plastic Mould (shenzhen) Co Ltd
Current assignee: Modern Precision Plastic Mould (shenzhen) Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-01-14
Anticipated expiration: 2029-05-21

Abstract

The utility model is suitable for an optics technical field provides a light projector and atmosphere lamp. The light projection device comprises a lamp holder, a light source and a cover body, wherein the cover body is connected with the lamp holder and encloses to form an accommodating cavity, the light source is located the accommodating cavity and fixed on the lamp holder, the light projection device further comprises a projection sheet, a first lens and a second lens, the light source, the first lens and the projection sheet are sequentially arranged and are all located in the accommodating cavity, the light source emits light outwards, the first lens is used for receiving the light coming from the light source, focusing is carried out on the light to generate a first light beam, the projection sheet is used for being penetrated by the first light beam to form a second light beam, and the second lens is used for focusing the received second light beam to form a third light beam projected outside the cover body. The utility model provides a light projector simple structure, the cost of manufacture is low, and can enrich the light effect.

Description

Light projector and atmosphere lamp

Technical Field

The utility model belongs to the technical field of optics, especially, relate to a light projector and atmosphere lamp.

Background

People generally create an atmosphere during festivals or entertainment by selecting different colored lampshades or selecting a plurality of colored LED light sources. But this approach is too simple. The existing projector can project a specific pattern on a wall surface to create an atmosphere, but has a complex structure and is expensive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a light projector, it aims at providing a simple structure's light projector.

The utility model provides a light projector, including lamp stand, light source and the cover body, the cover body with the lamp stand encloses to close and forms one and holds the chamber, the light source is located hold the intracavity and fix on the lamp stand, light projector still includes projection piece, first lens and second lens, the light source first lens with the projection piece is arranged in order and all is located hold the intracavity, the light source outwards jets out light, first lens are used for receiving and come from the light source light focuses on and produces first light beam, the projection piece be used for by first light beam pierces through and forms the second light beam, the second lens be used for with receiving the second light beam focus on form to the third light beam of cover external projection.

Further, the second lens is integrally formed at the top of the accommodating cavity of the cover body.

Furthermore, the cover body comprises an inner wall and an outer wall which are integrally arranged, the inner wall and the outer wall of the cover body are made of transparent materials or semitransparent materials, and the part of the cover body, which is positioned at the top of the accommodating cavity, is made of transparent materials.

Furthermore, the size of the cross section of the inner wall and/or the size of the cross section of the outer wall of the cover body gradually change from one side to the other side along the axial direction of the cover body.

Further, the surface of the inner wall and/or the outer wall is concave-convex.

Further, the first lens and/or the second lens are Fresnel lenses.

Further, the lamp stand is the columnar structure, the step that sets up along its circumference is seted up to the periphery wall upper end of lamp stand, the inner wall cover of the cover body is located the periphery wall upper end of lamp stand, the cover body bottom sets up on the step face of lamp stand.

Further, the light projection device further comprises a support positioned in the accommodating cavity, and the slide is supported by the support and positioned above the first lens.

Further, the support is made of a transparent material, the support is provided with an accommodating cavity for accommodating the light source, and the upper cavity wall of the accommodating cavity protrudes downwards to form the first lens.

The utility model discloses still include an atmosphere lamp, include as above-mentioned light projector.

The utility model provides a light projector adds the projection piece in traditional light source to can outwards throw out the light shadow image corresponding with the projection piece image. The first lens focuses the light source to form a first light beam, so that the illuminance of the light passing through the projection sheet is improved, and the brightness and the definition of a final shadow image are improved. The second lens refocuses the second light beam transmitted through the slide, thereby further improving the brightness of the shadow image.

The projection sheet has a specific color and/or pattern. When the light penetrates through the projection film, the light of each wave band reaches the pattern on the projection film, part of the light is reflected, and part of the light is penetrated, so that a light and shade effect is generated, and a corresponding pattern is formed. The light rays pass through different color areas of the projection film and generate corresponding colors after synthesis. Therefore, by setting a slide of a specific color and/or pattern, a corresponding shadow image is obtained. In this embodiment, the slide is replaceable, and the light and shadow image is changed by replacing the slide.

In conclusion, the light projection device provided by the utility model has simple structure and low manufacturing cost, and can realize the change of the projected shadow image by changing the projection sheets with different patterns, thereby enriching the light effect; therefore, the client can select different projection films according to the self requirement, and the projection device is placed in the environments such as exhibition halls, exhibition stands or restaurants to project images such as LOGO or products related to the client requirement, so that the propaganda effect can be achieved, the cost of environment arrangement is reduced, the use of paper propaganda pictures is reduced, and the effects of environmental protection and saving are achieved; on the other hand, the lighting effect of the environment such as an exhibition hall, an exhibition stand or a dining room can be changed, and the effect of creating a warm environment atmosphere is achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of a light projector according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a light projector according to an embodiment of the present invention, in which the cover body only shows a basic contour line;

fig. 3 is a schematic structural diagram of the cover body in the embodiment of the present invention, in which the outer wall only draws the outer contour line.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Lamp holder	40	Projection film
11	Base body	50	First lens
				12	Chassis	60	Second lens
20	Light source	70	Support frame
				30	Cover body	71	Containing cavity
31	Inner wall
				32	Outer wall
33	Bottom of cover body

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.

Example one

Referring to fig. 1 to 3, the present embodiment provides a light projector, which includes a lamp socket 10, a light source 20, and a cover 30, wherein the cover 30 has an open lower end and a closed upper end, the cover 30 is disposed on the lamp socket 10 and encloses to form an accommodating cavity, and the light source 20 is located in the accommodating cavity and fixed on the lamp socket 10. The light projection device further comprises a projection sheet 40, a first lens 50 and a second lens 60, the light source 20, the first lens 50 and the projection sheet 40 are sequentially arranged and are all located in the accommodating cavity, the light source 20 emits light outwards, the first lens 50 is used for focusing the light received from the light source 20 to generate a first light beam, the projection sheet 40 is provided with a specific pattern or/and color and is used for being penetrated by the first light beam to form a second light beam, the second lens 60 is connected to the cover body 30 and is used for focusing the received second light beam to form a third light beam projected outwards from the cover body 30, and the third light beam can be projected onto a wall surface to form a light and shadow image corresponding to the specific pattern or/and color.

The slide 40 is added to the conventional light source 20 so that a shadow image corresponding to the image of the slide 40 can be projected outward. The light source 20 is a point light source, preferably an LED light source, which has low cost and does not generate much heat, and is advantageous for safety, and the first lens 50 focuses the light source 20 to form a first light beam, so as to improve the illuminance of the light passing through the projection sheet 40, and further improve the brightness and definition of the final light and shadow image. The second lens 60 refocuses the second light beam transmitted through the slide 40, thereby further improving the brightness of the shadow image.

The slide 40 has a specific color and/or pattern, and the slide 40 can be a photographic film or a transparent film coated or engraved with a specific pattern, and the color and shape of the pattern can be set according to actual needs. When the light passes through the slide 40, the light of each wavelength band reaches the pattern on the slide 40, is partially reflected, and partially passes through the slide 40, thereby forming a corresponding pattern. The light passes through different color regions of the slide 40, and is synthesized to generate corresponding colors. Therefore, by providing the slide 40 with a specific color and/or pattern, a corresponding shadow image is obtained. In this embodiment, the slide 40 is replaceable, and the light and shadow image is changed by replacing the slide 40.

In summary, the light projection device provided by the embodiment has a simple structure and low manufacturing cost, and can change the projected light and shadow image by changing the projection sheets 40 with different patterns, thereby enriching the illumination effect; therefore, the client can select different projection films 40 according to the self requirement, and the projection device is placed in the environments such as exhibition halls, exhibition stands or restaurants to project images such as LOGO or products related to the client requirement, so that the propaganda effect can be achieved, the cost of environment arrangement is reduced, the use of paper propaganda pictures is reduced, and the effects of environmental protection and saving are achieved; on the other hand, the lighting effect of the environment such as an exhibition hall, an exhibition stand or a dining room can be changed, and the effect of creating a warm environment atmosphere is achieved.

Referring to fig. 2, the second lens 60 is integrally formed on the cover 30, and in this embodiment, the second lens 60 is integrally formed on the top of the accommodating cavity. The design effectively reduces the arrangement and assembly process of components and reduces the installation cost; in addition, in this design, the second lens 60 is firmly connected to the cover 30, which is beneficial to improving the stability of the light and shadow image, and in other embodiments, the second lens 60 may also be integrally formed on the top of the cover 30. The housing 30 includes an inner wall 31 and an outer wall 32, in this embodiment, the housing 30 is made of a transparent material, in other embodiments, the inner wall 31 and the outer wall 32 of the housing 30 can also be made of a translucent material, and in this case, in order to project an image by the third light beam, the portion of the housing 30 located at the top of the accommodating cavity is made of a transparent material; the inner wall 31 and/or the outer wall 32 are made of a transparent or translucent material. Light can be emitted from the housing 30 to illuminate the environment and create a glow in the atmosphere.

Further, the size of the cross section of the inner wall 31 and/or the size of the cross section of the outer wall 32 of the cover 30 gradually change from one side to the other side along the axial direction of the cover 30; thus, the layering of the light emitted from the cover 30 into the environment can be changed, and the effects of illuminating the environment and setting off the atmosphere can be achieved.

Further, the surface of the inner wall 31 and/or the outer wall 32 facing away from the light source is concave-convex. The structure combines the design of transparent/semitransparent materials, so that the illumination range has layering effect, and the effect of setting off atmosphere is achieved. In the illustrated embodiment, the cross-sectional profiles of the outer surfaces of the inner wall 31 and the outer wall 32 are both saw-toothed, and the saw-toothed profiles have a good refraction effect on light, so that light and dark light bars can be generated in the environment, and the illuminated environment has a layering sense and is rich in variation, so that the illuminated environment is not too monotonous, and an effect of setting off the atmosphere is achieved.

The first lens 50 and/or the second lens 60 are fresnel lenses. One surface of the lens surface of the Fresnel lens is a smooth surface, and the other surface of the lens surface is recorded with concentric circles from small to large, the texture of the Fresnel lens is designed by utilizing the interference and the disturbance of light and according to the requirements of relative sensitivity and receiving angle, and the Fresnel lens has a good light-gathering effect. In the illustrated embodiment, the first lens 50 is a common convex lens, the second lens 60 is a fresnel lens, and the first lens 50 is used for condensing light to the slide 40, so that if the condensing effect of the first lens 50 is stronger, the pattern on the surface of the slide 40 may be affected, the service life of the slide 40 is shortened, the first lens 50 uses a common lens to ensure the use effect and reduce the influence of the condensing effect on the slide 40, thereby ensuring the safety and prolonging the service life of the slide 40. In other embodiments, the convex lens of the corresponding light gathering effect can be selected by those skilled in the art according to specific needs.

Referring to fig. 1 and 2, the lamp holder 10 is a cylindrical structure, a step (not shown) is formed at an upper end of an outer peripheral wall of the lamp holder 10 along a circumferential direction of the lamp holder, an inner wall 31 of the cover 30 covers the upper end of the outer peripheral wall of the lamp holder 10, and a bottom 33 of the cover is disposed on the step surface of the lamp holder 10, so that the cover 30 and a top surface of the lamp holder 10 enclose to form a closed accommodating cavity.

Referring to fig. 1 or fig. 2, the light projecting device further includes a support 70 located in the accommodating cavity, and the slide 40 is supported by the support 70 and located above the first lens 50. The slide 40 is placed on the support 70 by its own weight, and the slide 40 can be replaced when the light and shadow image needs to be changed, so that the operation is convenient. The supporter 70 has a simple structure and achieves an effect of simultaneously supporting the slide 40.

The bracket 70 is made of a transparent material, the bracket 70 has a receiving cavity 71 for receiving the light source 20, and an upper cavity wall of the receiving cavity 71 protrudes downward to form the first lens 50. That is, the first lens 50 is provided integrally with the holder 70. The design effectively reduces the arrangement and assembly process of components and reduces the installation cost; in addition, the first lens 50 is firmly connected with the bracket 70, which is beneficial to improving the stability of the shadow image.

The bracket 70 is detachably connected to the lamp holder 10, and the design facilitates the disassembly and assembly of the bracket 70 and the disassembly and assembly and replacement of the light source 20.

The cover 30 and the second lens 60 are integrally formed by plastic material. The bracket 70 and the first lens 50 are made of plastic materials by integral injection molding. The design is beneficial to reducing the production cost.

Referring to fig. 1 or fig. 2, the lamp socket 10 includes a base 11 for fixing the light source 20 and a bottom plate 12 connected to the base 11. The base plate 12 is provided with an annular projection on the upper surface thereof, and the seat body 11 is placed on the base plate 12 by its own weight and its horizontal movement is limited by the projection. The chassis 12 has a control circuit built therein, and the chassis 12 has a contact on an upper surface thereof for electrical connection with the light source 20, the contact being electrically connected to the control circuit and located at a center of the protrusion. The chassis 12 is also provided with a battery electrically connected to the control circuit and/or an interface to an external connection to power the control circuit. In addition, a switch for controlling the on/off of the light source 20 is also arranged on the chassis 12.

Example two

The present embodiment provides an atmosphere lamp, which includes a light projecting device, and the specific structure of the light projecting device refers to the first embodiment. Since the atmosphere lamp provided by this embodiment adopts all technical solutions of all the above-mentioned first embodiments, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are also achieved, and are not described in detail herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The utility model provides a light projector, includes lamp stand, light source and the cover body, the cover body with the lamp stand encloses to close and forms one and holds the chamber, the light source is located hold the intracavity and fix on the lamp stand, its characterized in that, light projector still includes projection piece, first lens and second lens, the light source first lens with the projection piece is arranged in order and all is located hold the intracavity, the light source outwards jets out light, first lens are used for will receiving to come from the light source light is focused and is produced first light beam, the projection piece is used for by first light beam pierces through and forms the second light beam, the second lens be used for with receiving the second light beam is focused and is formed to the third light beam that throws outside the cover body.

2. The light projecting device of claim 1, wherein the second lens is integrally formed on top of the housing cavity of the housing.

3. The light projector of claim 2 wherein the housing includes an inner wall and an outer wall, the inner and outer walls of the housing being made of a transparent or translucent material, and the portion of the housing at the top of the receiving cavity being made of a transparent material.

4. The light projector of claim 3 wherein the cross-sectional size of the inner wall and/or the cross-sectional size of the outer wall of the housing gradually changes from side to side along the axial direction of the housing.

5. The light projector according to claim 3, wherein the surface of the inner wall and/or the outer wall is a concave-convex shape.

6. The light projecting device of claim 1, wherein the first lens and/or the second lens is a fresnel lens.

7. The light projector according to claim 3, wherein the lamp holder has a cylindrical structure, the upper end of the outer peripheral wall of the lamp holder is provided with a step arranged along the circumferential direction of the lamp holder, the inner wall of the cover body covers the upper end of the outer peripheral wall of the lamp holder, and the bottom of the cover body is arranged on the step surface of the lamp holder.

8. The light projection device of any of claims 1 to 7, further comprising a holder positioned within the receiving cavity, wherein the slide is supported by the holder and positioned above the first lens.

9. The light projector of claim 8 wherein said frame is made of a transparent material, said frame having a cavity for receiving said light source, an upper cavity wall of said cavity projecting downward to form said first lens.

10. An atmosphere lamp, comprising a light projection device as claimed in any one of claims 1 to 9.