CN103681223A

CN103681223A - Standard bulb

Info

Publication number: CN103681223A
Application number: CN201310672332.XA
Authority: CN
Inventors: 詹云翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-03-26

Abstract

The invention relates to a standard bulb. The standard bulb comprises a lamp cap and a glass shell, wherein a core column and a lamp filament are arranged in the glass shell; the glass shell is in the shape of a reversed cone, the upper end face of the reversed cone is a circular arc surface, and an arch protrusion is arranged in the center of the circular arc surface, occupies one half to two thirds of the whole circular arc surface and is 3-8cm in height; a fixing base is connected between two guide wires; a plurality of molybdenum wire hooks alternating high and low are arranged on the fixing base; the lamp filament penetrates through hook parts at the tops of the molybdenum wire hooks sequentially from left to right; the lamp filament is distributed in an M mode and located at the same plane. As the arch protrusion is arranged on the glass shell, the blacking phenomenon of the glass shell occurs at the top, the deposition area is concentrated, the area is reduced, and the service life of the bulb is prolonged; the M-type lamp filament is adopted, every section of the lamp filament inclines, the coplanarity is good, adjusting is easy to achieve, the light emission area is large, and the uniformity is high.

Description

A kind of standard lamp

Technical field

The present invention relates to a kind of light fixture, particularly a kind of luminous intensity examination criteria bulb.

Background technology

Luminous intensity examination criteria lamp is for embodying and transmit the value of unit of luminous intensity (candela cd), is the major criterion utensil in optical radiation measurement.Luminous intensity examination criteria lamp is generally made by incandescent lamp or tungsten halogen lamp, in order to make filament become the unique luminous element of luminous intensity examination criteria lamp, should make the stray light of glass cell-shell and other filament holder be reduced to minimum degree.At present typical luminous intensity examination criteria lamp is generally only comprised of bulb and lamp socket, the impact of stray light is larger, and be difficult to be stablized, uniform light intensity value, also some luminous intensity examination criteria lamp is for reducing the impact of stray light, adopt too complicated structure, increased production cost, and use for a long time filament oxidation, can cause tube face melanism, affect illumination quality.

Summary of the invention

The present invention is directed to deficiency of the prior art, provide a kind of simple in structure, melanism region is little, and can effectively reduce the standard lamp of stray light.

In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:

A kind of standard lamp, comprise lamp holder, glass bulb, in glass bulb, be provided with stem stem, filament, in described stem stem, draw two seal wires, the two ends of described filament are connected with two seal wires respectively, described glass bulb is the inverted cone shape that upper surface becomes arc surface, and the central authorities of arc surface are provided with arch projection, described arch projection accounts for the 1/2-2/3 of whole arc surface, and the height of arch projection is 3-8cm, between described two seal wires, be connected with a holder, on holder, be provided with the molybdenum wire hook that several height are alternate, filament from left to right passes the hook portion at described molybdenum wire hook top successively, described filament becomes M type to distribute, and filament is all in same plane.

As preferably: described holder is made by pottery or glass, and the even blacking of outer surface of pottery and glass.Such structure has effectively reduced the impact of the stray light of holder on light source.

The present invention adopts technique scheme, glass bulb adopts upper surface to become the inverted cone shape of arc surface, make in glass bulb all directions the reflective projection of filament outside glass bulb, both reduced stray light, while having avoided again adopting spherical glass bulb, must guarantee that filament could reduce the difficulty of processing of stray light at glass bulb center, improve qualification rate; And be provided with arch projection on glass bulb, the melanism of glass bulb is concentrated on to top, concentrate deposition region, area reducing, the useful life of having improved bulb; Adopt M type filament, each segment filament is obliquely installed, coplanarity is good, be easy to adjust, and the large uniformity of light-emitting area is strong.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:

A kind of standard lamp as shown in Figure 1, comprise lamp holder 1, glass bulb 4, in glass bulb 4, be provided with stem stem 2, filament 6, in described stem stem 2, draw two seal wires 7, the two ends of described filament 6 are connected with two seal wires 7 respectively, when lamp holder 1 under, glass bulb 4 is when upper, light fixture whole one-tenth rounding vertebra shape or inverted round stage shape, and the upper surface of glass bulb 4 is arc surface; And the central authorities of arc surface are provided with arch projection 9, described arch projection 9 accounts for the 1/2-2/3 of whole arc surface, and the height of arch projection 9 is 3-8cm, between described two seal wires 7, be connected with a holder 3, on holder 3, be provided with the molybdenum wire hook 5 that several height are alternate, filament 6 is from left to right successively through the hook portion 8 at described molybdenum wire hook 5 tops, and 6 one-tenth M types of described filament distribute, and filament 6 is all in same plane.Described holder 3 is made by pottery or glass, and the even blacking of the outer surface of pottery or glass.

Claims

1. a standard lamp, comprise lamp holder (1), glass bulb (4), in glass bulb (4), be provided with stem stem (2), filament (6), in described stem stem (2), draw two seal wires (7), the two ends of described filament (6) are connected with two seal wires (7) respectively, it is characterized in that: described glass bulb (4) is the inverted cone shape of upper surface one-tenth arc surface, and the central authorities of arc surface are provided with arch projection (9), described arch projection (9) accounts for the 1/2-2/3 of whole arc surface, and the height of arch projection (9) is 3-8cm, between described two seal wires (7), be connected with a holder (3), on holder (3), be provided with the molybdenum wire hook (5) that several height are alternate, filament (6) from left to right passes the hook portion (8) at described molybdenum wire hook (5) top successively, described filament (6) becomes M type to distribute, and filament (6) is all in same plane.

2. according to right, want a kind of standard lamp described in 1, it is characterized in that: described holder (3) is made by pottery or glass, and the even blacking of the outer surface of pottery or glass.