CN206988836U - A kind of colorful project lamp tool - Google Patents

Abstract

The utility model provides a kind of colorful project lamp tool, and colorful project lamp tool includes some optically focused groups, and optically focused group includes some LED lamp beads, prefocus cup, Fresnel Lenses；Prefocus cup rim of a cup diameter is more than prefocus cup bottom of a cup diameter；LED lamp bead is fixedly connected on bottom of a cup；LED lamp bead is located inside prefocus cup, and close to prefocus cup bottom of a cup；Fresnel Lenses is located at prefocus cup rim of a cup side.The utility model can not only ensure that the light that LED lamp bead is sent all is collected by prefocus cup, will not escape.

Description

A kind of colorful project lamp tool

Technical field

It the utility model is related to a kind of colorful project lamp tool.

Background technology

It is then behind lamp bead plus individual poly- typically with colored lamp bead for the optical system of present LED colorful project lamps Optical lens group, the even light mixing of the lamp bead for realizing colour.This kind of device has the following disadvantages：Color is in an optically focused group Color is optional in only 4, and illumination is low；There is gap between continuous optically focused group light-emitting area, exiting surface is uneven；And want to change Angle must change collector lens, and assembling is cumbersome, and cost is high.

In the prior art, Chinese patent 201410529423.2 discloses a kind of LED light mixing devices, and it includes backboard, light Diaphragm, LED light source and support column are learned, blooming piece is arranged on above backboard, and LED light source is arranged on backboard and into center pair Claim figure distribution, support column is arranged between the backboard and blooming piece of LED light mixing devices and in centrosymmetric image The heart, the support column have bottom, top and sidepiece, wherein, bottom is fixed on backboard, top braces blooming piece, lateral ring One side is wound with, LED light source is respectively on the perpendicular bisector on support column side base.

Chinese patent 201010187221.6 discloses a kind of LED light mixing devices.Existing LED light mixing devices do not meet thin Type trend, light emission rate are relatively low.A kind of LED light mixing devices of the present invention, including light emitting module, it is characterised in that also include leaded light Plate, light emitting module include substrate, at least two monochromatic LED light sources are housed on substrate, light emitting module be arranged on light guide plate Side, the light emission direction of LED light source form uniform indentation or reflection site on plate below light guide plate, led towards light guide plate Diffusion barrier is set above tabula rasa above plate.

Chinese patent application 201610088264.6 discloses a kind of mixed light LED lamp, and for the cultivation of plant, it is wrapped Include：LED, it is 5~7 that it, which has number ratio,:1~2:1:1 feux rouges, far-red light, blue light and green light LED lamp bead, per LEDs The power of lamp bead is 1W；Lamp bracket, it has lamp socket and support frame, multiple LEDs is spaced on support frame；Wherein, LED Spacing between pearl is 1.5~3cm；Wherein, green light LED lamp bead is evenly distributed on the outermost of LED lamp bead, and green glow The quantity of LED lamp bead is no less than 3.

Chinese patent 201010289242.9 discloses a kind of three color optical mixing LED point light source devices, including housing and fixation Microprismatic optical plate and LED circuit substrate in housing.Formation extends more along two different directions on microprismatic optical plate Individual V-arrangement ridge, at least one light source group of arranging in circuit substrate, three kinds of different face can be launched by being provided with four in each light source group The monochromatic LED spot light of color, the light of each LED point light source transmitting pass through microprismatic optical plate shape into four virtual light sources；Often A preset distance is kept between four LED point light sources in individual light source group, two light source groups of arbitrary neighborhood share a LED point Light source, virtual light source corresponding to adjacent LED point light source is set two pairs of overlapping virtual light sources to be present.

The defects of aforesaid way, is that the light that LED lamp bead is sent will not be collected all by prefocus cup, understands some effusion.

Therefore, how to provide a kind of light for ensureing that LED lamp bead is sent all to be collected by prefocus cup, the colour that will not be escaped Floodlight, which becomes industry, to be needed to solve the problems, such as.

The content of the invention

In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of colorful project lamp tool, and it can ensure LED The light that lamp bead is sent all is collected by prefocus cup, will not escape.

To achieve these goals, the utility model provides a kind of colorful project lamp tool, if colorful project lamp tool includes Dry optically focused group, optically focused group include some LED lamp beads, prefocus cup, Fresnel Lenses；Prefocus cup rim of a cup diameter is more than prefocus cup cup Bottom diameter；LED lamp bead is fixedly connected on bottom of a cup；LED lamp bead is located inside prefocus cup, and close to prefocus cup bottom of a cup；Fresnel is saturating Mirror is located at prefocus cup rim of a cup side.

In the utility model, LED lamp bead includes multiple color.

In the utility model, LED lamp bead is located inside prefocus cup, can so ensure the light whole quilt that LED lamp bead is sent Prefocus cup collects, and will not escape.

In the utility model, after prefocus cup, the angle of divergence of light can diminish the light that LED lamp bead is sent.

In the utility model, Fresnel Lenses can make exiting surface uniform, carry to the light that is collected through prefocus cup optically focused again Specular removal.

The utility model can realize a variety of colorful light mixings, the uniform gapless of exiting surface, and even light mixing with a prefocus cup； Change angle not having to change collector lens (prefocus cup)；Optical system is processed, is easy for installation, and cost is low.

According to another embodiment of the utility model, some LED lamp beads are divided into different multiple groups of color；To realize Colour mixture is uniform, and each group LED lamp bead is uniformly arranged by a certain percentage；Than former, optional color is more.

According to another embodiment of the utility model, Fresnel Lenses is located at outside prefocus cup.

According to another embodiment of the utility model, Fresnel Lenses is 10-50mm with rim of a cup distance, basic herein Upper more preferably 30mm.

According to another embodiment of the utility model, LED lamp bead is arranged in array.

According to another embodiment of the utility model, LED lamp bead is arranged in a ring.

According to another embodiment of the utility model, colorful project lamp, which has, further comprises diffusion barrier, and Fresnel is saturating Mirror is between prefocus cup and diffusion barrier；Light changes angle and spot size after diffusion barrier, and uniform mixed light can be achieved.

According to another embodiment of the utility model, the side thickness of Fresnel Lenses is 1.5~2.5mm.

According to another embodiment of the utility model, the receipts angular of prefocus cup is 20 ° -30 °；Prefocus cup can be by coloured silk 120 ° of light that color LED light source is sent are convergent in the range of 20 ° -30 °.

According to another embodiment of the utility model, the focal length of Fresnel Lenses is 200-600mm, on this basis More preferably 400mm；A diameter of 90~120mm of Fresnel Lenses.

Implementation principle of the present utility model is as follows：

1st, the light angle of divergence that LED lamp bead is sent is 120 °, is convergent on after prefocus cup in the range of 20 ° -30 °；

2nd, after light leaves prefocus cup, through Fresnel Lenses optically focused again, exiting surface is uniform, and light efficiency improves；

3rd, light passes through diffusion barrier again after passing through Fresnel Lenses, and optical angle changes, even light mixing.

Compared with prior art, the utility model possesses following beneficial effect：

1st, the available color of LED lamp bead is more, can realize more a variety of color LED lamp bead even light mixings.

2nd, exiting surface is uniformly attractive in appearance, and gap is not present；Optical efficiency lifting more than 30%.

3rd, optical system is simplified, the color blending effect of color LED light source is greatly improved.

4th, diffusion barrier need to only be changed by changing rising angle, and easy for installation, cost is relatively low.

The utility model is described in further detail below in conjunction with the accompanying drawings.

Brief description of the drawings

Fig. 1 is the top view of the colorful project lamp tool of embodiment 1；

Fig. 2 is the A-A faces sectional view of the colorful project lamp tool of embodiment 1.

Embodiment

Embodiment 1

A kind of colorful project lamp tool is present embodiments provided, colorful project lamp tool includes 2 optically focused groups, as shown in Figure 1-2, Each optically focused group includes LED lamp bead 1, prefocus cup 2, Fresnel Lenses 3 and diffusion barrier 4.

Wherein, LED lamp bead 1 is divided for different multiple groups of color, and is arranged in array；The light angle of divergence that LED lamp bead 1 is sent For 120 °

The rim of a cup diameter of prefocus cup 2 is more than the bottom of a cup diameter of prefocus cup 2；LED lamp bead 1 is fixedly connected on bottom of a cup, and is located at optically focused Inside cup 2；The receipts angular of prefocus cup 2 is 25 °.

Fresnel Lenses 3 is located at the rim of a cup side of prefocus cup 2, and outside prefocus cup 2；Fresnel Lenses 3 and rim of a cup away from From for 30mm；The focal length of Fresnel Lenses 3 is 400mm, and a diameter of 100mm, side thickness is 2mm.

Diffusion barrier 4 can change rising angle；Fresnel Lenses 3 is between prefocus cup 2 and diffusion barrier 4.

Embodiment 2

The present embodiment and the difference of embodiment 1 are：LED lamp bead is arranged in a ring.

Although the utility model is disclosed above with preferred embodiment, the model of the utility model implementation is not limited to Enclose.Any one of ordinary skill in the art, do not departing from invention scope of the present utility model, when a little improvement can be made, I.e. every equal improvement done according to the utility model, should be the scope of the utility model and is covered.

Claims (8)

1. a kind of colorful project lamp tool, the colorful project lamp tool includes some optically focused groups, it is characterised in that the optically focused group is equal Including some LED lamp beads, prefocus cup, Fresnel Lenses；The prefocus cup rim of a cup diameter is more than the prefocus cup bottom of a cup diameter；Institute State LED lamp bead and be fixedly connected on the bottom of a cup；The LED lamp bead is located inside the prefocus cup, and close to the prefocus cup cup Bottom；The Fresnel Lenses is located at the prefocus cup rim of a cup side.

2. colorful project lamp tool as claimed in claim 1, it is characterised in that it is different that some LED lamp beads are divided into color Multiple groups.

3. colorful project lamp tool as claimed in claim 1, it is characterised in that the Fresnel Lenses is located at outside the prefocus cup Portion.

4. colorful project lamp tool as claimed in claim 2, it is characterised in that the LED lamp bead is arranged in array.

5. colorful project lamp tool as claimed in claim 2, it is characterised in that the LED lamp bead is arranged in a ring.

6. colorful project lamp as claimed in claim 1 tool, it is characterised in that the side thickness of the Fresnel Lenses is 1.5~ 2.5mm。

7. colorful project lamp tool as claimed in claim 1, it is characterised in that the receipts angular of the prefocus cup is 20 ° -30 °.

8. colorful project lamp tool as claimed in claim 1, it is characterised in that the focal length of the Fresnel Lenses is 200- 600mm。