CN2439599Y - Lampshade - Google Patents

Abstract

The utility model discloses a lampshade which is mainly composed of a transparent shade body with a curved surface shape; conical bodies are overspread on the shade body. Particularly the conical bodies are arranged at the exterior surface of the shade body. The conical body can be a linear conical body, or a curve and curve surface body or a curve polyhedral cone-shaped body, and a dustproof decorative cap is covered at the outside of the shade body. Except the smooth surface of the inner surface of the cover body can reflect definite light, the reflection surface is mainly the inner interface of the conical body arranged at the exterior surface of the shade body. Thus the totality reflectance is greatly enhanced, the mainly reflection interface can not be oxygenized or contaminated, and the problems of descending of the reflectance and heating of the shade cover can be stopped. The lampshade has the advantages of easy fabrication and not easy to damage.

Description

Lampshade

The utility model relates to a kind of lampshade.

At present, world's electric consumption on lighting accounts for 1/5th of global generated energy, in China, the electric weight that is used to throw light on every year is above 50,000,000,000 kilowatts, this wherein, have 30～50% light to be absorbed, blocked loss by pollutants such as the coating material of light fixture, insect, dusts again, the effective rate of utilization of light is very low.For addressing this problem, the pit that stamps out different shape on the lampshade made from the metallic aluminium skin is arranged, to improve reflection to light; Also have inner surface to squeeze out a plurality of small ruts at glass lamp shade, again in pit surface plated aluminum film, and with glass with bulb and whole lampshade soldering and sealing, prevent that the oxidation of aluminium film from coming off, to prolong the service life of reflecting interface.But, the temporary transient reflecting rate that improves lampshade of these energy that have limitedly, the uniformity of the light in illuminated scope is improved, but keeps away the oxidation of unavoidable aluminium skin or film and the reflecting rate of lampshade is descended gradually, and thereupon with the drawback of lampshade heating; The manufacture craft that has is numerous and diverse, cost is high, fragile etc.

The purpose of this utility model provides a kind of reflectivity height, long service life, the simple lampshade of manufacturing.

For achieving the above object, the utility model is mainly formed by being covered with bullet on the transparent curved surface shaped cover body, and particularly described bullet places the outer surface of described cover body.

As further improvement of the utility model, described bullet is the coniform body of straight line or curve and surface cone or curve multiaspect cone; When the diameter of described light source was 15～20 millimeters, the bottom surface diameter of bullet was that 10～25 millimeters, height are that 5～10 millimeters, the sharp angle of awl are 35～50 degree; Described cover body is covered with dustproof trim outward.

After adopting such structure, because bullet is placed in the outer surface of transparent cover body and molten for one with cover body, it is except that the certain light of the shiny surface reflection of cover body inner surface, reflective surface promptly mainly is the internal interface of the bullet on the cover body outer surface, thereby both utilized light when optically denser medium propagates into optically thinner medium dexterously, under proper condition, the characteristic of interface meeting experiences total internal reflection, make the mass reflex rate greatly improve, again because of reflecting interface in cover body inside can be not oxidized, pollute, and stopped that the cover body reflectivity descends and the problem of heating; And make simple, easily row, cost are low, not fragile.The use of dustproof trim makes not only attractive in appearance, but also the easy cleaning of lampshade.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a kind of basic structure schematic diagram of the present utility model.

With reference to Fig. 1, hemispheric cover body 2 is made by clear glass, and its outer surface is equipped with bullet 3.This bullet 3 is the straight line cone, and its height is 8 millimeters, and boring sharp angle is 38 degree, and cone bottom diameter is 23 millimeters.It is that light source 1, its outside of 17 millimeters is coated with dustproof trim 4 that the centre of sphere place of cover body 2 is equipped with diameter.

During use, as long as turn on light, the light that light source 1 sends is when arriving at cover body 2 inner surfaces, and wherein a part of light is reflected, and most of light will pass inner surface and by bullet 3 total reflections.

Claims (4)

1. a lampshade is mainly formed by being covered with bullet (3) on the transparent curved surface shaped cover body (2), and it is characterized in that: described bullet (3) places the outer surface of described cover body (2).

2. lampshade according to claim 1 is characterized in that bullet (3) is the coniform body of straight line or curve and surface cone or curve multiaspect cone.

3. lampshade according to claim 1 is characterized in that when the diameter of light source (1) is 15～20 millimeters, and the bottom surface diameter of bullet (3) is that 10～25 millimeters, height are that 5～10 millimeters, the sharp angle of awl are 35～50 degree.

4. according to claim 1 or 2 or 3 described lampshades, it is characterized in that the outer dustproof trim (4) that is covered with of cover body (2).