CN203797559U - Lens and lighting device with same - Google Patents
Lens and lighting device with same Download PDFInfo
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- CN203797559U CN203797559U CN201320878389.0U CN201320878389U CN203797559U CN 203797559 U CN203797559 U CN 203797559U CN 201320878389 U CN201320878389 U CN 201320878389U CN 203797559 U CN203797559 U CN 203797559U
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- lens
- light
- lighting device
- light source
- focus
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Abstract
The utility model provides a lens. The lens comprises a total focus, at least two lens structures are formed on the section of the lens, and each lens structure comprises a structural focus, a light inlet surface and a light outlet surface; the optical axes of the lens structures gather at an intersection point, and the structural focus of each lens structure coincides with the intersection point; the total focus of the lens coincides with the intersection point. After the technical scheme is adopted, a point light source or an extension light source can be converted into a surface light source through the lens, parallel light in different shapes can be emitted by fine adjusting any lens structures, the technology is simple, combination is convenient, and production is facilitated.
Description
Technical field
The utility model relates to a kind of lighting device, the lensed lighting device of especially a kind of tool.
Background technology
Several hot spot effects such as lens in the market are all used to realize circular, square, oval, and in some special places as stage, bar, KTV, needs some novel hot spots, plays the decorative effect of magnificent mansion.Ring-shaped light spot is different from the past, by coordinating the light source of different colours, realizes such as special lighting effects such as Olympic Five Ring.
In prior art, if want, realize the illuminating effect of ring-shaped light spot, can to the light of the core of light-emitting area, block by lighttight annex on the one hand, utilize on the other hand reflection of light and refraction principle, scioptics coordinate with reflector realizes the control to light jointly.Yet these two kinds of controls all can increase cost of manufacture, make complex manufacturing technology.
So, need to design a kind of lens for lighting device, spot light or expansion light source can be expanded to area source, only utilize the refracting characteristic of lens can realize the accurate control to light, making emergent light is directional light, can realize difform, such as the special lighting effect such as annular, circular, oval; Can make again cost of manufacture minimize, manufacture craft is easy simultaneously.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide a kind of lens, especially a kind of mirror image biconvex lens with biconvex lens structure.
Another object of the present utility model be to provide a kind of there is said lens spot light can be converted to the lighting device of area source, it can realize the accurate control to light.
To achieve these goals, first aspect of the present utility model provides a kind of lens, comprising: total focus; At least two lens arrangements that form on the cross sectional shape of described lens, described in each, lens arrangement includes structure focus, an incidence surface and an exiting surface; Wherein, described in each, the optical axis of lens arrangement converges at an intersection point, and described in each, the structure focus of lens arrangement overlaps with described intersection point; Total focus of described lens overlaps with described intersection point.
Lens described in the utility model, wherein, described in each, lens arrangement is biconvex lens structure.
Lens described in the utility model, wherein, described in each, the incidence surface of biconvex lens structure is all at described lens homonymy.
Lens described in the utility model, wherein, total focus of described lens is arranged in described lens incidence surface one side surface place plane.
Lens described in the utility model, wherein, described lens also have a central shaft, and the shape of described lens is symmetrical about described central shaft.
Lens described in the utility model, wherein, described in each, the incidence surface of biconvex lens structure is contrary with the curvature direction of exiting surface.
Lens described in the utility model, wherein, incidence surface one side of described lens is reverse taper shape.
Lens described in the utility model, wherein, described in each, the radius of curvature of the incidence surface of biconvex lens structure is less than the radius of curvature of exiting surface.
A lighting device with lens described in the utility model, comprising: light source, described lens are positioned in the light path of described light source emergent light.
Lighting device described in the utility model, wherein, described light source is located at total focus place of described lens.
Lighting device described in the utility model, wherein, the relation table of the vertical range h of the distance R at center to the edge of the dark space of described lighting device outgoing hot spot, described light source and described lighting device outgoing hot spot and the angle theta of the optical axis of described biconvex lens structure and the central shaft of described lens is shown: R ≈ htan θ.
Adopt after technique scheme, the utility model can convert area source to spot light or expansion light source, can pass through the fine setting to lens arrangement, the difform directional light of outgoing, and technique is simple, combined and instant, is convenient to produce.
Accompanying drawing explanation
Fig. 1 is the side view of the utility model lens;
Fig. 2 is the top view of the utility model lens;
Fig. 3 is the structural representation of the utility model lighting device;
Fig. 4 is the light path schematic diagram of lens outgoing directional light principle;
Fig. 5 is the light path schematic diagram of the utility model lighting device;
Fig. 6 is the light path schematic diagram of the utility model lighting device.
The specific embodiment
The utility model first aspect discloses a kind of lens that form at least two lens arrangements on cross section.In these lens, the optical axis of each lens arrangement converges at an intersection point, and the structure focus of each lens arrangement overlaps with this intersection point, and total focus of the disclosed lens of the utility model also overlaps with this intersection point.Based on above-mentioned feature, the shape of the disclosed lens of the utility model on its cross section can be two-lens structure, also can be the analog structures such as three lens arrangements, four lens arrangements (three lens arrangements, four lens arrangements not shown), in actual production and use procedure, can design different lens combinations by lighting effect as required.
Describe below with reference to the accompanying drawings and in conjunction with specific embodiments the utility model in detail.
As shown in Figure 1, a kind of lens 2 that the utility model provides, it comprises: a total focus 23, at least two lens arrangements that form on the cross sectional shape of these lens 2.Each lens arrangement all has an incidence surface 21, exiting surface 22, structure focus (not shown) and an optical axis 24.Wherein, the optical axis 24 of each lens arrangement converges at same intersection point 27, and the structure focus (not shown) of each lens arrangement overlaps with intersection point 27, and total focus 23 of lens 2 overlaps with intersection point 27.
Preferably, in the disclosed lens 2 of the utility model, each lens arrangement is biconvex lens structure, the incidence surface 21 of each biconvex lens structure is all in the same sides of lens 2, this structure can utilize convex lens can converge the feature of light, makes evenly to concentrate through the light intensity of the emergent light of these lens 2.More preferably, 23 of total focuses of lens 2 are arranged in the plane 26 at these lens 2 incidence surface 21 1 side places, if this total focus 23 falls within outside this plane 26, when deviation light forms hot spot, the light distribution meeting of hot spot is disorderly and unsystematic, cannot form even, attractive in appearance and widely applicable lighting effect.
According to the embodiment described in above embodiment, these lens 2 also have a central shaft 25, the top view of these lens 2 as shown in Figure 2.The shape of these lens 2, about these central shaft 25 symmetries, makes the spot pattern of outgoing attractive in appearance, widely applicable, if need to obtain irregular spot pattern at special occasions, also can make dissymmetrical structure.These lens 2 also can off-axis setting, forms asymmetric spot pattern, is applied to other special occasions, but for widely applicable, cost-saving consideration, or central shaft is configured according to the utility model.
According to the biconvex lens structure described in above embodiment, the structure of lens 2 as shown in Figure 1, preferably, in each biconvex lens structure, the curvature direction of incidence surface 21 and exiting surface 22 is contrary, and like this, the incidence surface of each biconvex lens lens plays to incident light the effect of converging.Preferably, in general biconvex lens structure or in the incidence surface biconvex lens structure contrary with the curvature direction of exiting surface, incidence surface 21 1 sides of these lens 2 are reverse taper shape, the space that makes to hold light source is large, and light source setting is freer.More preferably, each biconvex lens structure is designed to, and the radius of curvature of its incidence surface 21 is less than the radius of curvature of exiting surface 22 all the time, and the benefit of design is to have larger tolerance for light source like this.
The utility model also discloses a kind of lighting device on the other hand, and this lighting device comprises: light source 1 and lens 2.As shown in Figure 3, the structure of this lighting device is arranged to, and lens 2 are positioned in the light path of light source 1 emergent light.Preferably, light source 1 is located at total focus 23 places of lens 2.So arrange, from the light of light source 1 outgoing, after lens 2 refractions, its emergent light is directional light, based on the equally distributed characteristic of directional light self light intensity, and the hot spot uniformly light-emitting that lighting device of the present utility model is formed.As shown in Figure 4, when light source 1 is positioned in total focus 23, according to the deviation principle of lens on light, its light sending from total focal position is the directional light 31 along optical axis 24 outgoing after lens 2, certain angle if lens 2 tilt, optical axis 24 tilts, as shown in Figure 5, collimated light can, with optical axis 24 certain angle that tilts, form parallel emergent light 32.
In conjunction with total focus 23 of preferred lens in Fig. 12, be positioned at the configuration in the plane 26 at incidence surface 21 1 side surface places of lens 2, if this total focus 23 drops on outside plane 26, from the emitted light of light source 1, understanding some can not be projected to incidence surface 21, there is light leakage phenomena, therefore in order to improve the utilization ratio of light source 1, total focus 23 of lens 2 is located in plane 26 as good.
Preferably, lens 2 in lighting device provided by the utility model have following characteristic, can be according to the different light spot shape of required formation, as shown in Figure 5 and Figure 6, by only changing the angle theta of optical axis 24 and central shaft 25, carry out the distance R at center, dark space to edge of this lighting device outgoing hot spot of the target location that command range light source 1 vertical range is h, not only method is simply effective, and when manufacturing, only by change mold profile, changing optical axis is partial to, just can reach the effect of the difform spot pattern of outgoing, or some can change the medium of refractive index by adulterating in lens, also can reach the effect that changes spot pattern shape.The distance R at center to the edge of the dark space of this lighting device outgoing hot spot, light source 1 are shown with the relation table of the angle theta of the central shaft 25 of lens 2 with the vertical range h of this lighting device outgoing hot spot and the optical axis of lens 2 24: R ≈ htan θ.
It is evident that, embodiment in above-mentioned all embodiment, not being only applicable to shape on cross section forms in the biconvex lens of two lens arrangements, difference according to demand, on cross section, shape forms the biconvex lens of the analog structures such as three or four lens arrangements, still can use the embodiment in above-described embodiment, realize the special lighting effect of magnificent mansion.
Light source 1 described in the utility model, can be spot light, can be also expansion light source.For expansion light source, the incidence surface 21 of each biconvex lens structure and the face type of exiting surface 22 in fine setting lens 2, be all similar to the central point of expansion light source and light that marginal point sends and collimate outgoing.
Adopt after technique scheme, the utility model can convert area source to spot light or expansion light source, can pass through the fine setting to lens shape, the difform directional light of outgoing, and technique is simple, combined and instant, is convenient to produce.
Should be noted that, embodiment of the present utility model has preferably implementation, and not the utility model is done to any type of restriction, any person skilled in art of being familiar with may utilize the technology contents change of above-mentioned announcement or be modified to the effective embodiment being equal to, in every case do not depart from the content of technical solutions of the utility model, any modification or equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (11)
1. lens, comprising:
Total focus;
At least two lens arrangements that form on the cross sectional shape of described lens, described in each, lens arrangement includes structure focus, an incidence surface and an exiting surface and optical axis;
It is characterized in that:
Described in each, the optical axis of lens arrangement converges at an intersection point, and described in each, the structure focus of lens arrangement overlaps with described intersection point;
Total focus of described lens overlaps with described intersection point.
2. lens as claimed in claim 1, is characterized in that: described in each, lens arrangement is biconvex lens structure.
3. lens as claimed in claim 2, is characterized in that: described in each, the incidence surface of biconvex lens structure is all at described lens homonymy.
4. lens as claimed in claim 3, is characterized in that: total focus of described lens is arranged in described lens incidence surface one side surface place plane.
5. lens as claimed in claim 4, is characterized in that: described lens also have a central shaft, and the shape of described lens is symmetrical about described central shaft.
6. lens as claimed in claim 2, is characterized in that: described in each, the incidence surface of biconvex lens structure is contrary with the curvature direction of exiting surface.
7. the lens as described in claim 2 or 6, is characterized in that: incidence surface one side of described lens is reverse taper shape.
8. lens as claimed in claim 7, is characterized in that: described in each, the radius of curvature of the incidence surface of biconvex lens structure is less than the radius of curvature of exiting surface.
9. a lighting device with lens as claimed in claim 2, comprising: light source, described lens are positioned in the light path of described light source emergent light.
10. lighting device as claimed in claim 9, is characterized in that: described light source is located at total focus place of described lens.
11. lighting device as claimed in claim 10, is characterized in that: the relation table of the vertical range h of the distance R at center to the edge of the dark space of described lighting device outgoing hot spot, described light source and described lighting device outgoing hot spot and the angle theta of the optical axis of described biconvex lens structure and the central shaft of described lens is shown: R ≈ htan θ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878389.0U CN203797559U (en) | 2013-12-27 | 2013-12-27 | Lens and lighting device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878389.0U CN203797559U (en) | 2013-12-27 | 2013-12-27 | Lens and lighting device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797559U true CN203797559U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878389.0U Expired - Fee Related CN203797559U (en) | 2013-12-27 | 2013-12-27 | Lens and lighting device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826231A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | LED lens and lighting device |
| CN111989519A (en) * | 2018-04-20 | 2020-11-24 | 日亚化学工业株式会社 | Light source module |
-
2013
- 2013-12-27 CN CN201320878389.0U patent/CN203797559U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989519A (en) * | 2018-04-20 | 2020-11-24 | 日亚化学工业株式会社 | Light source module |
| CN111989519B (en) * | 2018-04-20 | 2023-07-04 | 日亚化学工业株式会社 | Light source module |
| CN108826231A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | LED lens and lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20211227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |