CN86210445U - Three-mirror type wide-angled extra-far reflective lantern - Google Patents

Abstract

The utility model discloses a reflection light fitting which is positioned below human's eyes and can lighten for a long distance and a wide width. Adopting the light source in the shape of point or short lever, the reflection light fitting can be arranged at the sides of roads as a street lamp. When the light source is in the shape of short lever, a bar shaft can be parallel with the running direction of an automobile. The reflection light fitting is characterized in that the reflection light fitting has three pieces of major reflectors. One piece of the reflector, arranged beneath the light source and in charge of the illumination of the front and a bit left and right of the front, is basically in a parabola cylindrical surface shape. The other two pieces of the reflectors, arranged at the upper side of the light source and in charge of the illumination of the left side, the right side and a bit front, are in an elliptic cylindrical surface shape by symmetrically spreading towards the right and left at a certain height from the center of the light source. An elliptical long axis is basically parallel with the bar shaft of the light source, one focal spot is basically coincident with the center of the light source, and the other focal spot is near the surface end of a frame of the light fitting.

Description

Three-mirror type wide-angled extra-far reflective lantern

What the utility model was related is a kind of reflecting lamp, and it can be installed in very short place and still far shine widely according to getting.

More existing light fixtures just must be adorned highly if desire is shone far, but light fixture dress height, and human eye is with regard to visible light source, thereby feel direct glare, and are bad; And desire adorns to such an extent that the higher position needs high bar to support, and mounting cost just greatly, is keeped in repair also not convenient like this.In addition, will be repugnant to the eye if high bar is too many in a location, also enough spaces must be arranged in addition the desire dress is high, and this just is difficult to satisfy in some occasion.So, have some places with regard to hope adopt adorn shortly and still according to wide light fixture.

The related light fixture of the utility model can be installed to such an extent that be lower than people's eye position and still according to getting far, shine widely.Can adopt point source of light in this light fixture, also can adopt the rod-short light source, if use the rod-short light source, then light source bar axle is answered horizontal positioned, bar axle and garage's direction parallel (if being used as the words of road lighting).In this light fixture, three main speculums (also can join mutually) are arranged, wherein one is packaged below light source, is the parabola cylinder basically; Two is packaged above light source in addition, is elliptic cylinder basically, the light that light source sends downwards, and some just is mapped to ground without reflection, illuminates the near region by this.Another is partly by mirror row distribution down, make it forwards to penetrate in the far field with the very little angle of depression, illuminate left front far away, the place ahead far away and right front far away by this, the light that light source upwards sends can have four homes to return to, the a part of quilt extension of mirror is down being accepted and is being reflected, and adds to left front, the place ahead and right front.Partly its quantity percentage is very big for another, is gone by two Da Qu about on show reflexing to, and illuminates left, left front, the right front and right-hand on road surface with the various angle of depression.The 3rd partly shared percentage is very little, and it is penetrated on the light transmissive material of light fixture rear wall, allows it overflow some so that the artistic effect when watching from behind to be provided.The shared percentage of the 4th part is also little, and it is penetrated on absorbing material.

By the light of last mirroring, do not allow in principle and meet other main speculums again, this morpheme by speculum guarantees.Like this, light can not be difficult to control because of repeatedly reflecting to become.

All there is anti-dazzle blocking at the every position that is higher than light source of lamp surface, so how people or vehicle all can't see direct glare apart from the distance of light fixture.

In this light fixture, two above-mentioned ellipse post mirrors have special meaning.As everyone knows: the light intensity of bar-like light source on all directions in space obeyed cosine relation basically, promptly in direction zone (or being called the equatorial direction zone) light intensity maximum perpendicular to the bar axle, and in bar direction of principal axis zone light intensity minimum.If without light fixture shaft-like light source levels be contained in a side of road along garage's direction, then a sizable dark space will appear in the ground between two of this side lamps.Desire is eliminated this dark space, just must solve the deficient problem of bar direction of principal axis district luminous flux.This need transfer light to replenish from other orientation, and the luminous flux in equatorial direction zone is the abundantest, and accessing some light therefrom, to replenish bar direction of principal axis zone should be reasonable approach the most.On show is two ellipse cylinders, begins to the left and right from light source center top certain height that two ends spread out separately, as shown in drawings, wherein 1. is light source; 2. be parabolic post mirror; 3. be ellipse post mirror.A focus of elliptic curve overlaps substantially with light source center, long axis of ellipse and light source bar substantially parallel axes, so, the strong light in equatorial direction district is just penetrated to second focus after ellipse post mirroring, has so just attracted abundant luminous flux for bar direction of principal axis zone.Second focus design of elliptic curve near light fitting frame table end, so through the light of ellipse post mirroring to the there just poly-remittance has to a certain degree been arranged, it is quite narrow that cross section has become, be easy to by and unlikely mirror or the anti-dazzle material of hitting down.If there is not this poly-remittance measure, just has many light when so all light passes light fixture table end unavoidably and run into following mirror or run into anti-dazzle material.The former can form repeatedly reflects and is difficult to control, so that dazzle occurs; The latter then causes wearing and tearing of light.Ellipse post mirror has above-mentioned these two kinds of Special Significance, and just the super illumination performance far away of wide-angle for light fixture provides feasible architecture basics.

The light of this light fixture own is more hidden, if with it as street lamp, then both illuminated the road surface and don't with road surface contention visual attention, therefore, pedestrian and vehicle drivers can attentively be travelled, the minimizing traffic accident.In addition, this light fixture can provide quite big " vertical illumination ", makes the object that stands in ground be shone very eye-catchingly.

Claims (1)

1. A kind of reflecting lamp contains the main speculum that three separation or connection get up, and it is characterized in that:

   A, wherein speculum be basically the parabola cylinder 2., it is contained in light source below 1.; In addition two speculums be basically ellipse cylinder 3., be contained in the top of light source, spread out to two ends from light source center top certain altitude;

   B, with rod-short light source occasion, long axis of ellipse and light source bar substantially parallel axes;

   A focus of c, ellipse is near light source center, and another focus is near the table end of light fitting frame.

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