CN101556004A - Projection lamp and lampshade thereof - Google Patents
Projection lamp and lampshade thereof Download PDFInfo
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- CN101556004A CN101556004A CNA2008100665245A CN200810066524A CN101556004A CN 101556004 A CN101556004 A CN 101556004A CN A2008100665245 A CNA2008100665245 A CN A2008100665245A CN 200810066524 A CN200810066524 A CN 200810066524A CN 101556004 A CN101556004 A CN 101556004A
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- lampshade
- wedge surface
- wedge
- lamp
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Abstract
The invention relates to a projection lamp and a lampshade thereof. The projection lamp comprises the lampshade, a lamp case and a bulb, wherein the lamp case is connected with the opening end of the lampshade to form a closed chamber, and the bulb is arranged in the closed chamber. A plurality of wedge bulges are arranged on the outer wall of the lampshade, and each wedge bulge comprises a first wedge surface parallel to the end face of the lampshade, and a second wedge surface totally reflecting incident light thereon and extending from the outermost end of the first wedge surface to the end face of the lampshade. The wedge bulges arranged on the lampshade ensure that a majority of light emits to the front end of the lampshade without additional lamp cups, so that the procedure for installing the lamp cups is omitted, the cost is saved, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of light fixture, more particularly, relate to a kind of projecting lamp and lampshade thereof.
Background technology
Existing projecting lamp in use, its bulb electrified light emitting, these light to bulb around disperse.This will reduce the illuminating effect of projecting lamp to front region.Ray cast need be arrived under the situation in projecting lamp the place ahead, common way is that the inner surface of this bowl-type Lamp cup can reflex to the light of bulb the dead ahead of projection lamp, thereby increases the light that is incident upon front region at bowl-type Lamp cup of the peripheral increase of bulb.
Yet, adopt Lamp cup to come reflection ray that its weak point is arranged: when changing the bulb of different appearance and sizes, correspondingly to need to change Lamp cup,, guarantee reflection convergence effect to light to adapt to bulb sizes.Need Lamp cup be installed with projecting lamp, increase the cost of product.In addition, also need Lamp cup is installed and fixed, also reduced production efficiency.
Summary of the invention
The technical problem to be solved in the present invention is, need adopt Lamp cup with the defective of ray cast to the place ahead at projecting lamp of the prior art, and a kind of projecting lamp and lampshade thereof are provided, and does not need to adopt additional assembly, both can be with ray cast to the place ahead.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of projecting lamp, comprising:
Lampshade;
The lamp box is connected with the openend of described lampshade, the common room that forms sealing; And
Bulb is arranged in the room of described sealing;
The lateral wall of described lampshade is provided with a plurality of wedge shape projectioies, described wedge shape projection comprises first wedge surface parallel with the end face of described lampshade and makes incident light that second wedge surface of total reflection take place that described second wedge surface extends towards the end face of described lampshade from the outermost end of described first wedge surface thereon.
In projecting lamp of the present invention, the angle between described second wedge surface and described first wedge surface is 30 °-50 °.
In projecting lamp of the present invention, the refractive index of the material of described lampshade is 1.1-1.6.
In projecting lamp of the present invention, the angle between described second wedge surface and described first wedge surface is 45 °.
In projecting lamp of the present invention, described wedge shape projection is a plurality of circles, arc or the polygon projection that distributes up and down.
The present invention also provides a kind of lampshade, the lateral wall of described lampshade is provided with a plurality of wedge shape projectioies, described wedge shape projection comprises first wedge surface parallel with the end face of described lampshade and makes incident light that second wedge surface of total reflection take place that described second wedge surface extends towards the end face of described lampshade from the outermost end of described first wedge surface thereon.
In lampshade of the present invention, the angle between described second wedge surface and described first wedge surface is 30 °-50 °.
In lampshade of the present invention, the refractive index of the material of described lampshade is 1.1-1.6.
In lampshade of the present invention, the angle between described second wedge surface and described first wedge surface is 45 °.
In lampshade of the present invention, described wedge shape projection is a plurality of circles, arc or the polygon projection that distributes up and down.
Implement projecting lamp of the present invention and lampshade thereof, has following beneficial effect: only, can make the front end emission of most of light on lampshade, need not adopt additional Lamp cup towards lampshade by the wedge shape projection is set, omitted the step that Lamp cup is installed, saved cost and improved production efficiency.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the cutaway view of projecting lamp of the present invention;
Fig. 2 is the cutaway view of the lampshade of projecting lamp of the present invention;
Fig. 3 is the A portion enlarged drawing of Fig. 2.
The specific embodiment
As shown in Figure 1, projecting lamp of the present invention comprises transparent or semitransparent lampshade 2 and the lamp box that is connected with the openend of lampshade 2, and both form the room of sealing jointly, and bulb 1 promptly is arranged in this room.
The lamp box comprises two parts, promptly goes up lamp box 3 and following lamp box 4.Wherein going up lamp box 3 links to each other with the openend of lampshade 2.With reference to Fig. 1 and Fig. 2, the vertical section of lampshade 2 is a U-shaped, and preferably, it is shaped as revolving body.The openend of lampshade 2 is provided with along outward extending the turning up of its cross-sectional direction and buckles the limit.The equal opening in the two ends of last lamp box 3, wherein open top end be provided with along its cross-sectional direction extend internally in turn over top margin.The turning up of lampshade 2 buckled the limit and stretched in the lamp box 3, and fastens each other with the interior top margin that turns over.For sealing between the openend that makes lampshade 2 and the last lamp box 3 preventing infiltration, turning up of lampshade 2 buckle limit and last lamp box 3 in turn between the top margin, be provided with rubber seal 11.Sealing circle 11 can be close to turning up of lampshade 2 and buckle the surface, limit.
The only open top of following lamp box 4, the bottom open end of last lamp box 3 buckles with it mutually.For upper and lower lamp box 3,4 being connected to each other and don't hindering the I﹠M of bulb 1, upper and lower lamp box 3,4 links to each other by the pivot 6 of a side, and last lamp box 3 can be around pivot 6 rotations, thereby opens easily or close; And upper and lower lamp box 3,4 is provided with the buckle 10 that buckles mutually at the opposite side relative with pivot 6.
Centre position in following lamp box 4 is provided with electron rectifier, is electrically connected with the lamp socket 5 that is arranged on down lamp box 4 inner chambers.The lamp holder afterbody of bulb 1 is connected electrically in the lamp socket 5, and after the energising, the light that bulb 1 sends incides lampshade 2, and sees through lampshade 2 outgoing.
As shown in Figure 3, all advance towards bulb the place ahead for the light that bulb 1 is sent, the lateral wall of lampshade 2 is provided with a plurality of wedge shape projectioies.Overlook downwards from the end face of lampshade 2, this wedge shape projection can be a plurality of circles that the central shaft around lampshade 2 distributes up and down.From the vertical section of lampshade 2, the common zigzag that forms of a plurality of wedge shape projectioies.Each wedge shape projection includes first wedge surface 8 and second wedge surface, 9, the first wedge surfaces 8 are parallel with the end face of lampshade 2, and is just vertical with the central shaft of lampshade 2, and second wedge surface 9 makes incident light that total reflection take place thereon.For the light after being reflected is advanced towards lampshade 2 the place aheads, second wedge surface 9 extends towards the end face of lampshade 2 from the outermost end of first wedge surface 8.
In the present embodiment, the refractive index of air gets 1 usually, and the refractive index of the material of lampshade 2 is about 1.586.Angle between first wedge surface 8 and second wedge surface 9 is 30 °-50 °, preferred 45 ° of angles.Bulb 1 is preferably fluorescent lamp.Because bulb 1 is on the central shaft of lampshade 2, so its most of light that sends is parallel to first wedge surface 8 and incides on second wedge surface 9, and on second wedge surface 9 total reflection takes place.Light reflected enters atmosphere perpendicular to first wedge surface 8, like this, can guarantee the front end emission of most of light towards lampshade 2.When the material refractive index of lampshade 2 changes, can correspondingly change the angle between first wedge surface 8 and second wedge surface 9, on second wedge surface 9 total reflection takes place with the light that guarantees incident.
Because the light that bulb 1 sends near the part of lampshade 2 front ends directly is refracted to the place ahead through lampshade 2, therefore, lampshade 2 front ends needn't be provided with the wedge shape projection.
In this embodiment, because lampshade 2 is a revolving body, the wedge shape projection can be complete circle, also can be equally distributed multistage arc.When the cross section of lampshade 2 was polygon, the wedge shape projection correspondingly was polygon.
The present invention only by the wedge shape projection is set, can make the front end emission of most of light towards lampshade on lampshade 2, need not adopt additional Lamp cup, has omitted the step that Lamp cup is installed, and has saved cost and has improved production efficiency.This projecting lamp can be applicable to multiple occasion, for example tunnel etc.
Claims (10)
1, a kind of projecting lamp comprises:
Lampshade;
The lamp box is connected with the openend of described lampshade, the common room that forms sealing; And
Bulb is arranged in the room of described sealing;
It is characterized in that, the lateral wall of described lampshade is provided with a plurality of wedge shape projectioies, described wedge shape projection comprises first wedge surface parallel with the end face of described lampshade and makes incident light that second wedge surface of total reflection take place that described second wedge surface extends towards the end face of described lampshade from the outermost end of described first wedge surface thereon.
2, projecting lamp according to claim 1 is characterized in that, the angle between described second wedge surface and described first wedge surface is 30 °-50 °.
3, projecting lamp according to claim 2 is characterized in that, the refractive index of the material of described lampshade is 1.1-1.6.
According to claim 2 or 3 described projecting lamps, it is characterized in that 4, the angle between described second wedge surface and described first wedge surface is 45 °.
5, projecting lamp according to claim 1 is characterized in that, described wedge shape projection is a plurality of circles, arc or the polygon projection that distributes up and down.
6, a kind of lampshade, it is characterized in that, the lateral wall of described lampshade is provided with a plurality of wedge shape projectioies, described wedge shape projection comprises first wedge surface parallel with the end face of described lampshade and makes incident light that second wedge surface of total reflection take place that described second wedge surface extends towards the end face of described lampshade from the outermost end of described first wedge surface thereon.
7, lampshade according to claim 6 is characterized in that, the angle between described second wedge surface and described first wedge surface is 30 °-50 °.
8, lampshade according to claim 7 is characterized in that, the refractive index of the material of described lampshade is 1.1-1.6.
According to claim 7 or 8 described lampshades, it is characterized in that 9, the angle between described second wedge surface and described first wedge surface is 45 °.
10, lampshade according to claim 6 is characterized in that, described wedge shape projection is a plurality of circles, arc or the polygon projection that distributes up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100665245A CN101556004A (en) | 2008-04-07 | 2008-04-07 | Projection lamp and lampshade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100665245A CN101556004A (en) | 2008-04-07 | 2008-04-07 | Projection lamp and lampshade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101556004A true CN101556004A (en) | 2009-10-14 |
Family
ID=41174223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100665245A Pending CN101556004A (en) | 2008-04-07 | 2008-04-07 | Projection lamp and lampshade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101556004A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679207A (en) * | 2011-03-04 | 2012-09-19 | 通用电气照明解决方案有限责任公司 | LED traffic signal and optical element therefor |
| CN103256529A (en) * | 2013-04-02 | 2013-08-21 | 广东昭信灯具有限公司 | Novel LED street lamp |
| CN104633556A (en) * | 2013-11-12 | 2015-05-20 | 海洋王（东莞）照明科技有限公司 | Ceiling light |
| CN113137576A (en) * | 2021-03-22 | 2021-07-20 | 张孟哲 | Seawater cylinder lamp capable of avoiding blue light scattering |
-
2008
- 2008-04-07 CN CNA2008100665245A patent/CN101556004A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679207A (en) * | 2011-03-04 | 2012-09-19 | 通用电气照明解决方案有限责任公司 | LED traffic signal and optical element therefor |
| CN103256529A (en) * | 2013-04-02 | 2013-08-21 | 广东昭信灯具有限公司 | Novel LED street lamp |
| CN104633556A (en) * | 2013-11-12 | 2015-05-20 | 海洋王（东莞）照明科技有限公司 | Ceiling light |
| CN104633556B (en) * | 2013-11-12 | 2019-04-12 | 海洋王（东莞）照明科技有限公司 | Ceiling lighting |
| CN113137576A (en) * | 2021-03-22 | 2021-07-20 | 张孟哲 | Seawater cylinder lamp capable of avoiding blue light scattering |
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Open date: 20091014 |