CN101142653B

CN101142653B - Lamp with screening device

Info

Publication number: CN101142653B
Application number: CN2006800082289A
Authority: CN
Inventors: G·贝尔; P·赫尔比格; K·诺尔
Original assignee: PATRA Patent Treuhand Munich
Current assignee: PATRA Patent Treuhand Munich
Priority date: 2005-03-14
Filing date: 2006-02-09
Publication date: 2010-05-26
Anticipated expiration: 2026-02-09
Also published as: EP1859473A1; DE102005011935A1; CN101142653A; WO2006097060A1; JP2008533673A; EP1859473B1; JP4814305B2

Abstract

The invention relates to a lamp, comprising at least one incandescent means (4) arranged within a light bulb (1), whereby the light bulb (1) is fixed in a retainer piece (50) of a light socket (5; 5') and the lamp comprise a screening device (8; 8'). According to the invention, the screening device (8; 8') encloses a section (10, 11) of the light bulb (1) projecting from the retainer piece (50).

Description

Lamp with shade

The present invention relates to a kind of as claim 1 lamp as described in the preamble.

Background technology

This lamp is for example disclosed in DE 10145427A 1.This document description a kind of Halogen lamp LED that is used for a vehicle head lamp.This Halogen lamp LED has two filament and the shades that are arranged in the fluorescent tube inside, and it is arranged on the part that fluorescent tube is inner and be used to cover the light that is produced by one of described two filaments equally.

Summary of the invention

The objective of the invention is, the lamp with a shade of the above-mentioned type is provided, it reduces the emission of scattered light.

According to light fixture of the present invention at least one lighting means that is arranged on a fluorescent tube inside and a shade are arranged, wherein this fluorescent tube is fixed on the fixed part the inside of a lamp socket, and described shade surrounds a section from the outstanding fluorescent tube of fixed part according to the present invention.Reduce the emission of the radiation angle and the scattered light of lamp thus.

Pass through the lamp that a sealed end constitutes for its fluorescent tube, this end is fixed on the fixed part the inside of lamp socket, described fluorescent tube portion section of being surrounded by shade is advantageously surrounded sealed end, because send the scattered light that plays interference effect from the end of this sealing.Described shade preferably additionally surrounds a transition part section of fluorescent tube, it is arranged between a sealed lamp tube end and the rotational symmetric fluorescent tube portion section, and preferred especially described shade additionally yet surrounds a part of rotational symmetric fluorescent tube portion section, is used to reduce the scattered light emission of not expecting.

The present invention is particularly advantageous for lamp to be, its fluorescent tube is furnished with optical filtering mechanism, an interference filter layer for example, is used to reduce propagate from a kind of fluorescent tube of electromagnetic radiation of setted wavelength scope.For this lamp, if optical filtering mechanism is not near on the fluorescent tube portion section of fixed part, especially having or having only inadequate time spent of doing on the above-mentioned sealed lamp tube end and on the transition part section between lamp tube end and the rotational symmetric fluorescent tube portion section, optical filtering mechanism is replaced or supported to described shade.

Described shade advantageously annular constitutes, and is used for guaranteeing to cover fully the electromagnetic radiation of sending from the fluorescent tube portion section of being surrounded by shade.

Described shade advantageously is connected with a lampholder part, is used for guaranteeing shade is anchored reliably at lamp.According to the preferred embodiments of the present invention, described shade and corresponding lampholder part are made of metal, and connect by at least one welding position in simple mode thus.Another advantage of the shade that is made of metal is, high-fire resistance and for from all by the impermeability of the electromagnetic radiation of the spectrum that lamp sent.

According to the preferred embodiments of the present invention, described shade or be connected with fixed part or be connected with a calibration cover of lamp socket perhaps makes shade itself constitute by calibrating to overlap, and itself leans on the flange of lamp socket, and is connected with flange.These modification are owing to the reason of process technology is favourable.

The shade of described annular preferably has a kind of diameter that reduces in by the zone of the fluorescent tube portion section of its encirclement, make shade closely surround fluorescent tube thus, and improves bridging effect thus and avoid dirt to enter.

Description of drawings

Describe the present invention in detail by means of a plurality of preferred embodiments below.In the accompanying drawing:

Fig. 1 illustrates the longitdinal cross-section diagram according to the lamp of the first embodiment of the present invention,

Fig. 2 illustrates the longitdinal cross-section diagram of the shade of lamp shown in Figure 1,

Fig. 3 illustrates the vertical view of shade shown in figure 2,

Fig. 4 illustrates the longitdinal cross-section diagram according to the lamp of the second embodiment of the present invention,

Fig. 5 is illustrated in the partial enlarged drawing of shade shown in Fig. 4 and lamp socket,

Fig. 6 illustrates the part figure according to the shade of the third embodiment of the present invention and lamp socket.

Embodiment

First embodiment of the invention shown in Figure 1 relates to a kind of incandescent lamp, preferably a kind of Halogen lamp LED, and it uses in the infrared vehicle headlamp as the infrared-ray device, is the part of infrared viewing device.

This incandescent lamp has the fluorescent tube 1 of a glass, and it has the end 10 of a sealing, extracts two electric currents that are used to be arranged on the filament 4 of fluorescent tube inside from this end and introduces mechanism 2,3.The end 10 of sealing is made of crush seal mechanism, and it is connected with a rotational symmetric section 12 of surrounding filament 4 of fluorescent tube 1 by the transition part section 11 of fluorescent tube 1.The outer surface rotational symmetric, preferably oval-shaped section 12 of fluorescent tube 1 is by a kind of interference filter layer (not shown) coating, and it sees through for infrared-ray, and does not see through for light.

The crush seal mechanism 10 of described fluorescent tube 1 is fixed on fixed part 50 the insides of an annular, and it is made of the building block of lamp socket 5.This lamp socket 5 is made of metal pedestal.It also comprises the lamp holder 53 that calibration the cover 51 and one lamp socket flange 52 of an annular and two

contact pieces

6,7 and are made by a kind of electrical insulating material except the fixed part 50 of metal.Described

contact piece

6,7 is introduced one of

mechanism

2,3 conduction with electric current respectively and is connected, and forms the electric connection of incandescent lamp.Described lamp holder 53 is used for the electric insulation between contact piece and metal

lamp holder parts

50,51 and 52.Annular calibration cover 51 welds with the fixed part 50 of annular, and the edge 510 with an annular, and it leans on lamp socket flange 52, and welds with this flange.

Described incandescent lamp 1 is furnished with shade 8 annular, metal, and it has two

ring sections

81,82 that have different-diameter.The first ring section 81 surrounds outstanding portion's section and the transition part section 11 and the rotational symmetric fluorescent tube of the sub-fraction portion section 12 from fixed part 50 of crush seal mechanism 10.The second ring section 82 surrounds fixed part 50 and calibration cover 51.The position and the fixed part 50 of three through holes 80 of this calibration cover 51 in shade weld.The

second ring section

82 and 51 welding of calibration cover.For lamp is added lamp socket, shade 8 is inserted in the crush seal mechanism 10, and then fixed part 50 is assembled in the crush seal mechanism 10.This construction package is placed on lamp socket flange 52, is calibrated and welding with calibration cover 51.The so mutual coordination of diameter of the ring section 82 of described calibration cover 51 and fixed part 50 and shade 8 can be moved described parts along ring axis.Between alignment epoch and after the calibration, be implemented in the welding of calibrating between cover 51 and the fixed part 50 by the through hole in the shade 8 80.In addition, make calibration cover 51 on lamp socket flange 52, place correct position, and make edge 510 and the welding of lamp socket flange.During continuing calibration process, make shade 8 on calibration cover 51, place correct position, and overlap 51 welding with calibration.

Have the swedged first ring section 81 and closely surround above-mentioned fluorescent

tube portion section

10,11,12.It prevents that light from sending from the fluorescent

tube portion section

10,11 of non-rotating symmetry, these sections do not have the interference filter layer, and perhaps the interference filter layer can not sufficiently work there.For fear of damage glass surface or coating interference filter layer thereon, the ring edge of the first ring section 81 is furnished with a chamfering.

Letter illustrates the longitdinal cross-section diagram according to the incandescent lamp of the second embodiment of the present invention in Fig. 4.This incandescent lamp be just that in the difference of the embodiment shown in Fig. 1 lamp socket 5 ' calibrate cover, and shade 8 ' is also born in a second embodiment to calibrate among first embodiment and is overlapped 51 function.In all other details, be consistent according to the lamp of first embodiment and second embodiment.Therefore Fig. 1 with 4 in consistent parts represent with identical Reference numeral.

Described shade 8 ' has two the ring section 81 ', 82 ' and the edges 83 ' that have different-diameter, and it leans on lamp socket flange 52, and welds with this flange.The first ring section 81 ' surrounds portion's section and the transition part section 11 and the rotational symmetric fluorescent tube of the sub-fraction portion section 12 of crush seal mechanism 10 outstanding from fixed part 50.For fear of damage glass surface or coating interference filter layer thereon, the ring edge of the first ring section 81 ' is furnished with a chamfering.The second ring section 82 ' is surrounded fixed part 50, and welds with these parts.This fixed part 50 is arranged on the inside of shade 8 ', and it constitutes the part of lamp socket 5 ' here, and bears the function of calibration cover.Fig. 5 illustrates the partial enlarged drawing of fixed part 50, crush seal mechanism 10 and shade 8 '.For lamp is contained on the lamp socket, before fixed part 50 is assemblied on the squeeze feet 10, at first shade 8 ' is placed in the crush seal mechanism 10.Then will be placed on the lamp socket flange 52, edge 83 ' is leaned on lamp socket flange 52 by the construction package that sealed fluorescent tube 1 and filament 4, electric

current introducing mechanism

2,3, fixed part 50 and shade 8 ' are formed.The so mutual coordination of diameter of ring section 82 ' and fixed part 50 can be moved fixed part 50 and shade 8 ' along its ring axis.Said structure assembly alignment lamp socket flange 52, and then make ring section 82 ' and fixed part 50 welding, and edge 83 ' and lamp socket flange 52 are welded to each other in the position that has been calibrated.

In Fig. 6, part figure according to the 3rd embodiment of lamp of the present invention is shown with sectional view.This 3rd embodiment is almost with consistent at first embodiment shown in Fig. 1.Be just that with the difference of first embodiment second ring section 82 of calibrating cover 51 and shade 8 according to the 3rd embodiment is not the setting of overlap joint ground, and does not have through hole 80 in ring section 82.Not only second of calibration cover 51 but also the shade 8 ring section 82 is all welded with fixed part 50 according to the third embodiment of the present invention.The first and the 3rd embodiment is consistent on all other details.

The present invention is not limited to the embodiment that describes in detail above.For example the present invention also can be applied on the incandescent lamp of taillight, Brake lamp or flashing lamp, and its fluorescent tube is furnished with a kind of interference filter layer of selecting printing opacity that has in order to produce redness or orange-colored light.Described shade function in this case is, covers for the light that leaves fluorescent tube near position fixed part, and filter action does not perhaps have filter layer there because big angle of light is inadequate there.The lamp that the present invention can also be applied to discharge lamp and have other fluorescent tube geometry for example has the lamp of sphere or cylindrical tube.The present invention also can be applied to be used for for example limiting the beam angle of lamp on the lamp that does not have filter layer on the fluorescent tube in addition.Described lamp socket or part lamp socket or shade also can be made by heat resistant plastice.

Claims

1. has the lamp that at least one is arranged on the inner lighting means (4) of a fluorescent tube (1), described fluorescent tube (1) has a crush seal mechanism (10) and a rotational symmetric section (12) that is connected with this crush seal mechanism (10) by a transition part section (11) of fluorescent tube, and the crush seal mechanism (10) of wherein said fluorescent tube (1) is fixed on a lamp socket (5; 5 ') a fixed part (50) the inside, and this light fixture has the shade (8 of an annular; 8 '), described shade (8; 8 ') surround described fluorescent tube (1) from the outstanding portion's section (10 of fixed part (50); 11), it is characterized in that rotational symmetric the section (12) of described fluorescent tube (1) scribbles the interference filter layer, this interference filter layer does not see through for light, and sees through for infrared-ray; And the shade (8 of described annular; 8 ') comprise the first ring section (81; 81 ') and the second ring section (82; 82 '), the described first ring section (81; 81 ') have the diameter that reduces and closely surround described transition part section (11) and described crush seal mechanism (10) from the outstanding portion's section of fixed part (50), and the described second ring section (82; 82 ') surround described fixed part (50) and weld with described fixed part (50).

2. lamp as claimed in claim 1 is characterized in that, described shade (8; 8 ') additionally surround a part of rotational symmetric fluorescent tube portion's section (12).