A kind of PAR lamp
Technical field
The present invention relates to lighting technical field, more particularly to a kind of PAR (Parabolic Aluminum Reflector,
Dishes shape aluminium reflects) lamp.
Background technology
The light source of current LED (light emitting diode, light emitting diode) lamp is typically using lighting angle 120
The Lambertian light source of left and right is spent, but in order to reach that actual illumination demand generally requires to use secondary optics device.Current is secondary
Optics is optical lens and reflector, and LED light source is placed in secondary optics bottom device center, and the light source of Lambertian passes through
The refraction and reflection of lens, or certain angle requirement is reached by the part reflection constraint of reflector.But both sides
Formula can be immediately seen LED light source, and the latter can only opposite side light enter row constraint without can be immediately ahead of control light,
This can cause the direct outgoing of light in front and cause dazzle, cause visual fatigue uncomfortable and influence center light intensity values.
The content of the invention
The present invention is directed to the limitation of prior art, now provides one kind and is intended to avoid due to that can be immediately seen LED lamplight
Visual fatigue caused by source and influence center light intensity values.
Concrete technical scheme is as follows:
A kind of PAR lamp, including lamp holder, lamp body, reflector, multiple LED particles, annular aluminium base and transparent surface cover;
There is the lamp body horn-like first to be open and be opened with second of the tubulose in the described first opening relative position
Mouthful;
The transparent surface cover is fixedly installed on the lamp body, and covers first opening;
The lamp holder is fixedly installed on the lamp body, and covers second opening;
The aluminium base is arranged in first opening in the described first opening is concentric;
The multiple LED particle is circumferentially distributed in the aluminium base dorsad the described first one side being open;
The reflector is arranged on the aluminium base dorsad the described first side being open, and the reflecting surface of the reflector
Towards multiple LED particles, the light multiple LED particles to be sent reflexes to the transparent surface cover;
The lamp holder is electrically connected with multiple LED particles.
Preferably, in above-mentioned middle PAR lamp, in addition to annular radiator, the annular radiator is arranged at the aluminium base
Between the transparent surface cover, and the aluminium base of fitting is towards the one side of the transparent surface cover.
Preferably, in above-mentioned middle PAR lamp, the lamp holder is connected by screw thread with the described second opening.
Preferably, in above-mentioned middle PAR lamp, the outer surface of first opening of the lamp body is equipped with multiple buckles;
The neck of multiple correspondences buckle is provided with the inside of the transparent surface cover;
First opening is connected together by the multiple buckle and the multiple neck of the transparent surface cover.
Preferably, in above-mentioned middle PAR lamp, the transparent surface cover uses light transmissive material.
Preferably, in above-mentioned middle PAR lamp, in addition to driving power supply, the driving power supply is arranged in the lamp body, and is connected
It is connected between the lamp holder and multiple LED particles.
Preferably, in above-mentioned middle PAR lamp, the reflecting surface central protuberance of the reflector, and along the raised week
It is recessed to being formed;
The section of the depression longitudinal direction, is the parabolical of opening upwards by the protrusion direction to the bottom of the depression
A part, the parabolical axis to the edge of the reflector is free curve;
The position correspondence parabolical focus of multiple LED particles.
Preferably, in above-mentioned middle PAR lamp, the reflector carries out optical grade injection molding punching press using plastics, or;
Using plating high reflectance film layer after metal spinning.
Preferably, in above-mentioned middle PAR lamp, the power of each LED particle is respectively less than 1W in the multiple LED particle.
Above-mentioned technical proposal has the following advantages that or beneficial effect:1. using LED of multiple middle low powers (below 1W)
Grain, reduces whole lamp cost, and whole light beam angle will not change with the increase and decrease of LED particle number, with good versatility.
2. all light that light source is sent will be controlled by the constraint of reflector, it is to avoid dizzy caused by direct projection light
Light, while low with central light strength under beam angle so that K values are low (K=central light strengths/luminous flux).
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, the present invention and its feature, outside
Shape and advantage will become more apparent.It should be noted that associated components are not drawn to scale in accompanying drawing, it is preferred that emphasis is
The purport of the present invention is shown.
Fig. 1 be the present invention preferred embodiment in, the fractionation schematic diagram of PAR lamp;
Fig. 2 be the present invention preferred embodiment in, the whole lamp profile of PAR lamp;
During Fig. 3 is the preferred embodiment of the present invention, schematic diagram is moved towards in PAR lamp axis with left light;
During Fig. 4 is the preferred embodiment of the present invention, schematic diagram is moved towards in PAR lamp axis with right light;
Fig. 5 be the present invention preferred embodiment in, the three-dimensional view one of PAR lamp;
Fig. 6 be the present invention preferred embodiment in, the three-dimensional view two of PAR lamp;
Fig. 7 be the present invention preferred embodiment in, aluminum annular-shaped substrate schematic diagram.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention
It is fixed.
As shown in figure 1, the present invention preferred embodiment in, a kind of PAR lamp, including lamp holder 1, lamp body 2, reflector 5,
Multiple LED particles 6, annular aluminium base 7 and transparent surface cover 10;
Second opening of the lamp body 2 with the first horn-like opening 17 and with the tubulose in the first 17 relative positions of opening
18;
Transparent surface cover 10 is fixedly installed on lamp body 2, and covers the first opening 17;
Lamp holder 1 is fixedly installed on lamp body 2, and covers the second opening 18;
Aluminium base 7 is arranged on 17 in the first opening in the first opening 17 is concentric, and the effect of aluminium base 7 is radiating.
As shown in fig. 7, because the structure of annular aluminium base is annular, therefore, can be by one during aluminium base is manufactured
Part is dug out as raw material in the inside for planting the annular aluminium base such as PAR38 of specification, and continuation manufactures the aluminium base of other specifications such as
PAR30, PAR20, PAR16, can so be such that aluminium base is fully utilized, reduce cost, it is to avoid the waste of material.
Multiple LED particles 6 are circumferential to be distributed in the one side of dorsad the first opening 17 of aluminium base 7;
Reflector 5 is arranged on the side of dorsad the first opening 17 of aluminium base 7, and reflector 5 reflecting surface 12 towards multiple
LED particle 6 (as shown in Figure 2), the light multiple LED particles 6 to be sent reflexes to transparent surface cover 10;
Lamp holder 1 is electrically connected with multiple LED particles 6.
In preferred embodiments of the present invention, in addition to annular radiator 8, annular radiator 8 be arranged at aluminium base 7 with thoroughly
Between bright cover 10, and aluminium base 7 of fitting is towards the one side of transparent surface cover 10.
In preferred embodiments of the present invention, lamp holder 1 is connected by screw thread with the second opening 18., can be by by screw thread
Lamp holder 1 is connected or taken apart with lamp body 2.
In preferred embodiments of the present invention, the outer surface of the first opening 17 of lamp body 2 is equipped with multiple buckles 3;
The inner side of transparent surface cover 10 is provided with the neck 9 of multiple correspondence buckles 3;
First opening 17 is connected together (such as Fig. 5 and Fig. 6 institutes by multiple necks 9 of multiple buckles 3 and transparent surface cover 10
Show).
In preferred embodiments of the present invention, transparent surface cover 10 uses light transmissive material, for light preferably to be transmitted
Go.
In preferred embodiments of the present invention, in addition to driving power supply 19, driving power supply 19 is arranged in lamp body 2, and is connected
It is connected between lamp holder 1 and multiple LED particles 6.Further, driving power supply 19 can be realized by one drive circuit plate 4, drive circuit
Plate 4 may connect on lamp holder 1, and be mounted to lamp holder 1 in lamp body 2.
As shown in Fig. 2 in preferred embodiments of the present invention, the central protuberance 13 of reflecting surface 12 of reflector 5, and along projection
13 circumferential formation depression 14;
Axis 11 is a part along projection 13 to the parabola 15 of the opening upwards of circumference, parabola 15 with left
Axis 11 to the edge of reflector 5 is free curve 16;
The focus of the position correspondence parabola 15 of multiple LED particles 6.
The height of 12 protrusions of reflecting surface 13 can suitably change, and can such as pass through annular aluminium base 7, but cannot be too low,
Marginal portion of the light that part is reflected along transparent surface cover 10 can otherwise projected, causes dazzle, causes visual fatigue uncomfortable
The problem of.
Fig. 3 is that schematic diagram is moved towards in PAR lamp axis 11 with left light.It can be seen that axis 11 is with a left side
Light, is first gathered into a bit after the primary event of reflecting surface 12 of reflector 5, is then scattered again through transparent surface cover 10, so
So that tabula rasa more homogeneous soft, and be not in macula lutea.
Fig. 4 is that schematic diagram is moved towards in PAR lamp axis 11 with right light.It can be seen that axis 11 is with the right side
Light, after the madial wall reflection for first passing through reflector 5, then the reflection of reflecting surface 12 of process reflector 5 is gathered into a bit, again finally
Scattered by transparent surface cover 10, so equally can also cause tabula rasa more homogeneous soft, and be not in macula lutea.
Therefore, the technical program can be controlled by the Defocusing design of the deformation to parabola 15 and multiple LED particles 6
The beam angle of whole lamp so that the light in front will not directly outgoing and cause dazzle, cause visual fatigue uncomfortable and influence
Center light intensity values.
In preferred embodiments of the present invention, reflector 5 carries out optical grade injection molding punching press using plastics, or;
Using plating high reflectance film layer after metal spinning.
In preferred embodiments of the present invention, the power of each LED particle is respectively less than 1W in multiple LED particles 6.Using many
The LED particle that individual power is less than below 1W can reduce whole lamp cost, and whole light beam angle will not be with the increase and decrease of LED particle number
Change, with good versatility.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and above-described embodiment can be with
Various change example is realized, such change case has no effect on the substantive content of the present invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply;Any those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and techniques content make many possible variations and modification to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this has no effect on the substantive content of the present invention.Therefore, every content without departing from technical solution of the present invention, foundation
The technical spirit of the present invention still falls within the present invention to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of technical scheme protection.