High-pressure discharge lamp
Technical field
The present invention relates to a kind of light fixture, particularly relate to a kind of high-pressure discharge lamp.
Background technology
High-pressure discharge lamp is widely used in lighting field, particularly in the illumination of occasions such as industry, street and square, generally comprise an end opening lamp housing, be arranged on electrion fluorescent tube in the lamp housing and the lampshade that is used for the sealed light shell opener, in lamp housing, also be provided with reflector, be used to reflect the light that the electrion fluorescent tube sends, this part light is penetrated from lampshade.The light reflection surface of the reflector of existing high-pressure discharge lamp is smooth arc surface, because problems such as material, manufacturing process and assembly precision easily cause focusing inaccurate, cause uneven illumination even, when light that the electrion fluorescent tube sends after the smooth arc surface reflection of reflector, bright fringes, dark fringe or the ring of light will appear in the place ahead at ray cast, influence the illumination uniformity.
Summary of the invention
The technical problem to be solved in the present invention is, the defective at the luminous intensity distribution inequality of prior art provides a kind of high-pressure discharge lamp that can realize uniform light distribution.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of high-pressure discharge lamp, comprise an end opening lamp housing, be arranged on electrion fluorescent tube in the lamp housing and the lampshade that is used for the sealed light shell opener, in lamp housing, also be provided with reflector, the light reflection surface of described reflector is arranged to the projection of the arc section of corrugated distribution, the light that the electrion fluorescent tube sends throws away through after these protruding diffuse reflections, realizes uniform light distribution.
In high-pressure discharge lamp of the present invention, the light reflection surface of described reflector is arranged to the projection of the arc section of corrugated cross direction profiles.
In high-pressure discharge lamp of the present invention, the cross section of described projection is a circular arc.
In high-pressure discharge lamp of the present invention, the openend spacing of described projection is less than 15mm, and the centre-height of projection is less than 1.2mm.
In high-pressure discharge lamp of the present invention, the openend spacing of described projection is 10mm, and the centre-height of projection is 0.9mm.
In high-pressure discharge lamp of the present invention, the front edge of described photophore is provided with narrow flanging, is provided with through hole above, be fixed on the lamp housing by screw, both sides are provided with the sidelight reflecting surface, and the rear end is provided with opening, and the electrion fluorescent tube passes from opening.
In high-pressure discharge lamp of the present invention, described lampshade is a Transparent lamp shade.
In high-pressure discharge lamp of the present invention, described lampshade is translucent lampshade.
In high-pressure discharge lamp of the present invention, described lampshade is fixed on the front end of lamp housing by elastic fastener.
In high-pressure discharge lamp of the present invention, be provided with sealing ring between described lampshade and the lamp housing.
In high-pressure discharge lamp of the present invention, described elastic fastener is converted into by elastic steel sheet, and first end is converted into the circle of inwardly curling, and installs the edge in lampshade, and second end is provided with through hole, and is fastened on the lamp housing by screw.
In high-pressure discharge lamp of the present invention, described electrion fluorescent tube is an electrion Metal halogen lamp pipe.
In high-pressure discharge lamp of the present invention, described lamp housing is provided with fixed part.
In high-pressure discharge lamp of the present invention, the fixed part of described lamp housing and the adjustable angle of lamp housing.
In high-pressure discharge lamp of the present invention, described electrion fluorescent tube is placed on the optical axis of reflector, and high-pressure discharge lamp is fixed on the lamp stand by support, and lamp stand is fixed on the lamp housing by screw.
Implement high-pressure discharge lamp of the present invention, has following beneficial effect: because the light reflection surface of reflector is arranged to the projection of the arc section of corrugated distribution, the light that the electrion fluorescent tube sends throws away through after these protruding diffuse reflections, realized uniform light distribution, the bright fringes, dark fringe or the ring of light that have occurred when having solved the high-pressure discharge lamp projection.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of high-pressure discharge lamp preferred embodiment of the present invention;
Fig. 2 is the stereogram of reflector in the high-pressure discharge lamp preferred embodiment of the present invention;
Fig. 3 is a schematic diagram of putting into the reflector of electrion fluorescent tube in the high-pressure discharge lamp preferred embodiment of the present invention;
Fig. 4 is an A portion enlarged drawing among Fig. 1.
The specific embodiment
As shown in Figure 1, in the first embodiment of the present invention, high-pressure discharge lamp comprises the lamp housing 10 of an end opening, the lampshade 20 that is fixedly installed on the light source in the lamp housing 10 and is used to seal the openend of lamp housing 10.The cross section of this lamp housing 10 is an arc, for example, and semicircle.This light source can be, for example, and electrion fluorescent tube 30.Lampshade 20 can be made by transparent or semitransparent material, is used to make light to pass through.In lamp housing 10, be provided with reflector 40, be used to reflect a part of light that electrion fluorescent tube 30 sends, this part light is throwed away from lampshade 20.This reflector 40 preferably posts mutually with the inwall of lamp housing 10, to save the space.
Shown in Fig. 2~4, described reflector 40 comprises the light reflection surface 402 of arc-shaped cross-section, and the top of light reflection surface 402 and bottom link together with side plate 401,405 respectively, thereby forms the hemi-closure space of an opening.This opening is towards lampshade 20.Described light reflection surface 402 is arranged to the projection 406 of the arc section of corrugated distribution, and described protruding 406 optimums are the corrugated cross direction profiles, and the cross sectional shape optimum is a circular arc; Described protruding 406 openend spacing is less than 15mm, and centre-height is less than 1.2mm, and described protruding 406 openend spacing optimum is 10mm, and the centre-height optimum is 0.9mm.After the diffuse reflection, go out, and realized uniform light distribution by projection on these projectioies 406 for the light that electrion fluorescent tube 30 sends.The edge of light reflection surface 402 is provided with narrow flanging 403, has through hole on the described flanging 403, reflector 40 is fixed on the boss 102 of lamp housing 10 front ends setting by screw; Described reflector 40 rear ends are provided with opening 404, and electrion fluorescent tube 30 passes opening 404, and two ends are fixed on the lamp housing 10.
Described lampshade 20 is transparent or semitransparent lampshade, is fixed on the openend of lamp housing 10 by elastic fastener 101.Described elastic fastener 101 is converted into by elastic steel sheet, and first end is converted into the circle of inwardly curling; Second end is provided with through hole, and is fastened on the lamp housing 10 by screw.When second end fixedly the time, first end can be towards lampshade 20, and installs in the edge of lampshade 20, thereby lampshade 20 is fixing.Be provided with sealing ring 103 between Transparent lamp shade 20 and the lamp housing 10, enter to prevent dust and rainwater.
Described electrion fluorescent tube 30 is an electrion Metal halogen lamp pipe, is arranged on the optical axis of reflector, is fixed on the lamp stand 302 by support 301, and lamp stand 302 is fixed on the lamp housing 10 by screw.
Described lamp housing 10 is provided with fixed part 104, can easily lamp housing 10 be fixed on the illumination place, described fixed part 104 is bolted together with lamp housing 10, and the angle between fixed part 104 and the lamp housing 10 can be regulated, and can regulate the direction of illumination easily.
Implement high-pressure discharge lamp of the present invention, has following beneficial effect: because the light reflection surface of reflector is arranged to the projection of the arc section of corrugated distribution, the light that the electrion fluorescent tube sends throws away through after these protruding diffuse reflections, realized uniform light distribution, the bright fringes, dark fringe or the ring of light that have occurred when having solved the high-pressure discharge lamp projection.