CN205331882U

CN205331882U - Optical devices and lighting device

Info

Publication number: CN205331882U
Application number: CN201521083769.0U
Authority: CN
Inventors: 王万林
Original assignee: Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2015-12-23
Filing date: 2015-12-23
Publication date: 2016-06-22
Anticipated expiration: 2025-12-23

Abstract

The utility model discloses an optical devices and lighting device, include the optical element that is close to the light source and with the 2nd optical element that an optical element interval set up, an optical element is for receiving the optical lens, having near the depressed part of light source and the bellying of light source dorsad, the 2nd optical element is collimation optical element, and the light that the light source sent is through jetting out behind the 2nd optical element again behind the optical element.

Description

A kind of Optical devices and illuminator

[technical field]

This utility model relates to a kind of Optical devices and illuminator, especially the Optical devices at a kind of adjustment beam angle and illuminator。

[background technology]

LED has begun to popularize for lighting, and the color quality of LED requires specifically showing up also more and more higher, and the photochromic Spreading requirements in photographed object face is more and more higher, meets the hommization demand shown up。But LED is 180 ° of luminescences, can dazzle serious, the unequal feature of hot spot effect transition, and in shop, the commercial lighting field such as odeum, meeting room, it is necessary to using narrow angle light beam, this is accomplished by LED and coordinates the design of Optical System focusing on light beam。

LED applies to accent light field, typically require the accent light demand having multiple illumination range according to different lighting environments, the lamp needing exist for different beam angle is selected, how to design a beam angle adjustable, and photochromic uniform collimation luminous intensity distribution within the scope of all angles, be one in the urgent need to technology。

The technology of light modulation beam angle common at present be adopt LED and one lens system, by adjustment between the two from, obtain different beam angles；The shortcomings such as it is low that this technology has capacity usage ratio, hot spot weak effect, the accent light for high-end place is difficult to meet requirement。

Therefore, in order to overcome drawbacks described above, it is necessary to provide the Optical devices of a kind of improvement。

[utility model content]

The purpose of this utility model is in that to provide a kind of Optical devices。

To achieve these goals, this utility model adopts the following technical scheme that a kind of Optical devices, adjustment beam angle, the first optical element and second optical element spaced with described first optical element including close light source, described first optical element is receipts optical lens, has the depressed part of close light source and the lobe of backlight, described second optical element is collimation optics, and the light that light source sends penetrates again after the first optical element after the second optical element。

Preferably, in the middle part of the second optical element described in described first optic alignment。

Preferably, described first optical element is crescent。

Preferably, described second optical element include in the face of the plane of incidence with micro structure of light source and backlight for smooth flat exit facet。

Preferably, the cross section of the micro structure of described second optical element includes first incident section with the different serrated-surface of some density and the second incident section for smooth arc-shaped surface being positioned at middle part。

Preferably, the position that described first incident section includes near described second incident section is bigger than the zigzag density of the position away from described second incident section。

Preferably, described first incident section is symmetrically arranged amongst the both sides of described second incident section。

Preferably, described second optical element is Fresnel Lenses or convex lens。

Preferably, when distance between described first optical element and the second optical element is different, light source is different by the beam angle formed after described first optical element and the second optical element。

Compared to prior art, this utility model Optical devices have the advantage that the light distribution angle regulating LED easily。

The purpose of this utility model is in that to provide a kind of illuminator。

To achieve these goals, this utility model adopts the following technical scheme that a kind of illuminator, including light source and Optical devices, described Optical devices adjustment beam angle, the first optical element and second optical element spaced with described first optical element including close light source, described first optical element is receipts optical lens, has the depressed part of close light source and the lobe of backlight, described second optical element is collimation optics, and the light that light source sends penetrates again after the first optical element after the second optical element。

Preferably, described first optical element is crescent。

Compared to prior art, this utility model illuminator has the advantage that the light distribution angle regulating LED easily。

[accompanying drawing explanation]

Fig. 1 is the schematic diagram of the preferred embodiment of this utility model illuminator。

Index path when Fig. 2 is the first optical element of the preferred embodiment of this utility model illuminator and the second optical element is spaced in the first distance。

Index path when Fig. 3 is the first optical element of the preferred embodiment of this utility model illuminator and the second optical element is spaced in second distance。

[detailed description of the invention]

Refer to shown in Fig. 1, a kind of illuminator 1 of preferred embodiment of the present utility model, including light source 30 and Optical devices (non-label)。This Optical devices adjustment beam angle, including the first optical element 10 and second optical element 20 spaced with the first optical element 10 of close light source 30。First optical element 10 is receipts optical lens, has the depressed part 11 of close light source 30 and the lobe 12 of backlight 30。Second optical element 20 is collimation optics, and the light that light source 30 sends penetrates again after the first optical element 10 after the second optical element 20。When distance between first optical element 10 from the second optical element 20 is different, light source 30 is different with the beam angle formed after the second optical element 20 by the first optical element 10。With reference to shown in Fig. 2 and Fig. 3, the distance between the first optical element 10 and the second optical element 20 in Fig. 3 is big compared with the distance between the first optical element 10 and the second optical element 20 in Fig. 2, it can be seen that the Optical devices in Fig. 2 can so that the light of light source 30 has the beam angle less compared with the Optical devices in Fig. 3 after Optical devices。That is, the distance between the first optical element 10 and the second optical element 20 is more big, and the light of light source 30 beam angle after Optical devices is more big。Therefore, Optical devices of the present utility model can adjust the distance between the first optical element 10 and the second optical element 20 as required thus simply adjusting the light beam angle after Optical devices of light source 30。

Refer to shown in Fig. 1, the first optical element 10 is directed in the middle part of the second optical element 20。First optical element 10 is crescent。

Second optical element 20 is Fresnel Lenses or convex lens, in the present embodiment, second optical element 20 is from 30 degree of Fresnel Lenses started as total reflection, including in the face of the plane of incidence 21 with micro structure 201 of light source and backlight 30 for smooth flat exit facet 22。It is the first incident section 211 that the serrated-surface that some density is different forms and the second incident section 212 for smooth arc-shaped surface being positioned at middle part that the micro structure 201 of the second optical element 20 includes having cross section。First incident section 211 is bigger than the zigzag density of the position away from the second incident section 212 near the position of the second incident section 212。First incident section 211 is symmetrically arranged amongst the both sides of the second incident section 212。Lobe 12 aligns the second incident section 212。In other embodiments, the second optical element 20 can also be designed as other lenses as required。In the present embodiment, the range of accommodation of beam angle is 11 degree to 40 degree, it is possible to meet major part accent light application scenario。

Should be noted that, embodiment of the present utility model has preferably implementation, and not this utility model is done any type of restriction, any one skilled in the art changes possibly also with the technology contents of the disclosure above or is modified to equivalent effective embodiment, in every case without departing from the content of technical solutions of the utility model, any amendment above example made according to technical spirit of the present utility model or equivalent variations and modification, all still fall within the scope of technical solutions of the utility model。

Claims

1. Optical devices, adjustment beam angle, the first optical element and second optical element spaced with described first optical element including close light source, described first optical element is receipts optical lens, has the depressed part of close light source and the lobe of backlight, described second optical element is collimation optics, and the light that light source sends penetrates again after the first optical element after the second optical element。

2. Optical devices as claimed in claim 1, it is characterised in that: in the middle part of the second optical element described in described first optic alignment。

3. Optical devices as claimed in claim 1, it is characterised in that: described first optical element is crescent。

4. Optical devices as claimed in claim 1, it is characterised in that: described second optical element include in the face of the plane of incidence with micro structure of light source and backlight for smooth flat exit facet。

5. Optical devices as claimed in claim 4, it is characterised in that: the cross section of the micro structure of described second optical element includes first incident section with the different serrated-surface of some density and the second incident section for smooth arc-shaped surface being positioned at middle part。

6. Optical devices as claimed in claim 5, it is characterised in that: the position that described first incident section includes near described second incident section is bigger than the zigzag density of the position away from described second incident section。

7. Optical devices as claimed in claim 6, it is characterised in that: described first incident section is symmetrically arranged amongst the both sides of described second incident section。

8. Optical devices as claimed in claim 4, it is characterised in that: described second optical element is Fresnel Lenses or convex lens。

9. Optical devices as claimed in claim 1, it is characterised in that: when distance between described first optical element and the second optical element is different, light source is different by the beam angle formed after described first optical element and the second optical element。

10. an illuminator, including the adjustable Optical devices of beam angle described in light source and any one of claim 1-9。