Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of shot-light, has improved lens reflector combination optical structure, good illumination effect, and improved light utilization efficiency.
The utility model is achieved through the following technical solutions:
Shot-light, includes reflector, lens and LED light source, and described reflector adopts container-like structure, and the side wall surface of reflector adopts reflecting surface, and the two ends of reflecting surface are respectively outer face and inner face, and outer face is light-emitting area; Described lens are arranged in the inner chamber of reflector and install near the inner face position of reflector; Wherein, the inner of described lens is provided with LED light source chamber, and LED light source is arranged in described LED light source chamber; The outer end of described lens is provided with the reflector cavity concaving, and the wall of reflector cavity is a kind of reflective surface.
In an embodiment, the wall in the LED light source chamber of described lens is for entering light face therein, and the side wall surface of lens is exiting surface, described in enter light face, reflective surface and exiting surface and all adopt surface of revolution structure, described in enter light face, reflective surface and exiting surface gyroaxis overlap.
Further, the reflecting surface of described reflector adopts surface of revolution structure, described in enter the gyroaxis of light face, reflective surface and exiting surface and the reflecting surface of reflector central shaft be located along the same line.
Further, described lens are arranged on the inner face of described reflector, and the inner face that enters light face and described reflector of described lens surrounds and forms LED light source chamber.
The beneficial effects of the utility model are as follows:
Shot-light of the present utility model, includes reflector, lens and LED light source, and the inner of lens is provided with LED light source chamber, and LED light source is arranged in described LED light source chamber; The outer end of described lens is provided with the reflector cavity concaving, and the wall of reflector cavity is a kind of reflective surface.Therefore, be arranged on the light that the LED light source in LED light source chamber sends, Part I can directly project away from lens; Part II light is mapped on reflective surface, and total reflection occurs, and a total reflection light part directly projects away, after the reflection of part total reflection light in addition by reflector, projects away again; Part III illumination is mapped to the upper of lens, projects on reflector afterwards, then projects away after reflection.Therefore, good illumination effect, and improved light utilization efficiency.
Further, shot-light of the present utility model, lens comprise into light face, reflective surface and three kinds of different optical acting surfaces of exiting surface.The combination optical structure of scioptics and reflector, meets for example optical effect of AR111 shot-light illumination, and improves optics utilization rate.Under the fixing prerequisite of profile, reflecting cup structure and fit dimension, do not change lens and enter light face and reflective surface, only, by changing the outer arc exiting surface of lens, can meet the irradiation requirement of various angles.Or, under the fixing prerequisite of profile, lens arrangement and fit dimension, only, by changing the shape and size of reflective surface in reflector, also can meet the irradiation requirement of various angles.
The specific embodiment
The utility model is in order to solve the problem of prior art, a kind of shot-light has been proposed, include reflector 1, lens 2 and LED light source, described reflector 1 adopts container-like structure, the side wall surface of reflector 1 adopts reflecting surface, the two ends of reflecting surface are respectively outer face and inner face, and outer face is light-emitting area; Described lens 2 are arranged in the inner chamber of reflector 1 and install near the inner face position of reflector; Wherein, the inner of described lens 2 is provided with LED light source chamber 3, and LED light source is arranged in described LED light source chamber 3; The outer end of described lens 2 is provided with the reflector cavity concaving, and the wall of reflector cavity is a kind of reflective surface 21.
Therein in an embodiment, the wall in the LED light source chamber 3 of described lens 2 is for entering light face 23, the side wall surface of lens 2 is exiting surface 22, described in enter light face 23, reflective surface 21 and exiting surface 22 and all adopt surface of revolution structure, described in enter light face 23, reflective surface 21 and exiting surface 22 gyroaxis overlap.
Further, the reflecting surface of described reflector 1 adopts surface of revolution structure, described in enter the gyroaxis of light face 23, reflective surface 21 and exiting surface 22 and the reflecting surface of reflector 1 central shaft be located along the same line.
Further, described in, enter light face 23 for hemisphere face or ellipsoid.
Further, the bus of described exiting surface 22 is the curve of straight line or evagination.
Further, described reflective surface 21 adopts funnel-shaped structure, and the bus of described reflective surface 21 is the curve of straight line or evagination.
Further, described lens 2 are arranged on the inner face of described reflector 1, and the light face 23 that enters of described lens 2 surrounds and forms LED light source chamber 3 with the inner face of described reflector 1.
Further, described reflective surface 21 is sprayed with reflection powder or plating reflectance coating.
Further, described reflector 1 is the outer convex globoidal rotating cup body that corresponding shot-light light emitting anger is less than or equal to 30 degree.
Further, described reflector 1 is the outer cancave cambered surface rotation cup that corresponding shot-light light emitting anger is more than or equal to 30 degree.
Below in conjunction with accompanying drawing, the utility model is done to further detailed description.
Embodiment mono-:
The AR111 that Fig. 1 has provided the present embodiment penetrates the structural representation of lamp lens reflector combination optical structure.This combination optical structure comprises reflector, lens and LED light source.Wherein, lens 2 comprise reflective surface 21, exiting surface 22 and enter 23 3 kinds of different optical acting surfaces of light face.Described enter light face 23 for being positioned at the hemisphere of described lens bottom or the intrados of ellipsoid, described exiting surface 22 is for being positioned at the round table-like extrados of described lens outer surface, described reflective surface 21 is for being positioned at the inverted round table at described lens top or the inner surface of cone, and the described gyroaxis that enters light face 23, reflective surface 22 and exiting surface 21 overlaps.As shown in Figure 1, lens and reflector combine, described lens 2 are inlaid in to described reflector 1 inside, after combination, the light face that enters of described lens coordinates a cavity of formation with the inner face of described reflector, this cavity is the light-source chamber 3 of the corresponding LED of installation, when shot-light is installed, and the interior placement LED light source in LED light source chamber 3 (comprising LED circuit aluminium base and LED lamp pearl).Reflector 1 be shaped as outer convex globoidal rotating cup body, preferably, described reflector 1 is less than or equal to the outer convex globoidal rotating cup body of 30 degree for corresponding shot-light light emitting anger.
As shown in Figure 2, be arranged on the light that the LED light source in LED light source chamber 3 sends, Part I can enter in lens 2 from the light face 23 that enters of lens 2, on the exiting surface 22 of lens 2, directly projects away.On reflective surface 21, be sprayed with reflection powder or plating reflectance coating, the Part II light that LED light source sends is mapped on reflective surface, total reflection occurs, and a total reflection light part is directly shot out at exiting surface 22 upslides, after the reflection of part total reflection light in addition by reflector 1, projects away again.The Part III illumination that LED light source sends is mapped on the exiting surface 22 of lens, projects afterwards on reflector 1, then projects away after reflection.
Fig. 3 is the distribution curve flux figure of embodiment mono-, finds out from distribution curve flux, and the shot-light of the present embodiment one is realized the high irradiation of concentrating of high brightness in the angle of departure of 20 degree, can meet the optical effect of AR111 shot-light illumination, and the utilization rate of curve table Mingguang City is simultaneously very high.
Embodiment bis-:
As shown in Figure 4, the lens reflector combination optical structure of the present embodiment, be with embodiment mono-difference: the outer cancave cambered surface that is shaped as of reflector 1 rotates cup, preferably, described reflector 1 is the outer cancave cambered surface rotation cup that corresponding shot-light light emitting anger is more than or equal to 30 degree, and its optical principle is the same with embodiment mono-.
Fig. 5 has provided the distribution curve flux figure that implements two, and equally, from curve, the shot-light of the present embodiment two is realized the high irradiation of concentrating of high brightness in the angle of departure of 30 degree, can meet the optical effect of AR111 shot-light illumination, and the utilization rate of curve table Mingguang City is simultaneously very high.
Can know and find out from the distribution curve flux of Fig. 4 and Fig. 5, the light distribution angle irradiating according to shot-light requires different, the structure of reflector 1 is different, so just can be according to concrete irradiation requirement, under the fixing prerequisite of profile, reflecting cup structure and fit dimension, do not change lens and enter light face and reflective surface, only, by changing the outer arc exiting surface of lens, meet the irradiation requirement of various angles.
According to the conventional techniques means of the art, certainly, under the fixing prerequisite of profile, lens arrangement and fit dimension, only, by changing the shape and size of reflective surface in reflector, also can meet the irradiation requirement of various angles.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.