CN2864978Y

CN2864978Y - Ultraviolet fluorescent lamp

Info

Publication number: CN2864978Y
Application number: CN 200520135803
Authority: CN
Inventors: 高殿昆; 孙德春; 高素卿; 叶志鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-08
Filing date: 2005-11-08
Publication date: 2007-01-31
Anticipated expiration: 2015-11-08

Abstract

A UV-B ultraviolet fluorescent lamp comprises an optical glass tube 1, a fluorescent body layer 2, azoth steam 3, a core bar 4, a filament bracket 5, filaments 6, a boot 7 and a mount 8, wherein the light transmittance ratio of optical glass tube for medium waves ultraviolet light is no less than 70 percent, and the fluorescent body layer comprises one or more than one of the saltern metal borate, phosphate, aluminate and silicate agitated by tombarthite ionic or over constituent ionic. This utility model gives out UV-B ultraviolet light under the agitation of 253.7nm ultraviolet light, and the emission spectrum peak is between 283-315 nm. The UV-B ultraviolet light is capable of transforming the ergosterol light into vitamin D[2] and the transformation rate of the 7-dehydrogenation cholesterin into vitamin D[3], thereby increasing the production rate of vitamin D[2] and D[3] and promoting the calcium and phosphor metabolization in human and animals bodies, preventing diseases like rachitis, osteomalacia, osteoporosis or the like, and being beneficial for their growth and development.

Description

The Ultraluminescence lamp

Technical field

The utility model relates to a kind of low-pressure mercury vapour discharge-type fluorescent lamp; Also relate to simultaneously the light conversion means that steroid changes into vitamin D.

Background technology

At present, produce the light conversion means of vitamin D both at home and abroad, high pressure or extra-high-pressure mercury vapour lamp more than all adopting kilowatt, its lamp lamp surface temperature in ignition procedures reaches 300 ℃ Celsius, the vapour pressure of ergosterol ethanolic solution rises and set off an explosion (boiling point of ethanol is 78.5 ℃ Celsius) must be provided with water cooling sleeve pipe and the explosion-proof sleeve pipe of steel in the outside of high-pressure mercury-vapor lamp respectively in produce.The spectrum that high-pressure mercury-vapor lamp in this light conversion means is launched is the spectrum from the continuous distribution in a broadband of short wave ultraviolet light (UV-C section)-medium wave ultraviolet light (UV-B section)-long wave ultraviolet light (UV-A section)-visible light-infrared light (IR section).At vitamin D ₂Production process in can make ergosterol change into vitamin D ₂Spectrum, only be limited in the scope of UV-B section medium wave ultraviolet light.In other light, except the infrared light that radiates with the form of big calorimetric, UV-C section short wave ultraviolet light and UV-A segment length's ripple ultraviolet light will make ergosterol change into useless lumisterol and tachysterol, and other photoisomers.Make the phototransformation rate of ergosterol have only about 40% vitamin D ₂Yield about 25%.Because the kind of photoisomer is many, amount is big, and it is complicated to cause separation to be purified, and loss is many, and power consumption is big, the cost height.At vitamin D ₃Production in exist same drawback.Still do not have at present emission and concentrate on the interior Ultraluminescence lamp of UV-B section medium wave ultraviolet spectral range.

Summary of the invention

At the deficiency that prior art exists, the purpose of this utility model provides the new type light source lamp of high efficiency, low energy consumption, safety, to substitute high pressure or the extra-high-pressure mercury vapour lamp that present vitamin D manufacturer generally uses.

The technical solution of the utility model is as shown in Figure 3: optical glass pipe 1 need be good to the UV transparent rate, for medium wave uv transmittance 〉=70% more than the 297nm; Also need its average coefficient of linear expansion little simultaneously from changing between normal temperature to 400 ℃, and stable performance such as anti-water.Its material is quartz glass, titanium glass, sodium potassium soft glass etc.Luminescent coating 2 used fluorophor are that one or more the UV-B section fluorophor in the ion-activated alkaline earth metal borate system of rare earth ion or transition element, phosphate system, aluminates system, the silicate systems constitutes, with the borate salt system better effects if; Emission spectrum peak value under the 253.7nm ultraviolet excitation is between 283nm～315nm.

UV-B section medium wave Ultraluminescence lamp of the present utility model.Its emission spectrum all concentrates in the UV-B section ultraviolet spectral range, does not contain or contain (on a small quantity) UV-C section short wave ultraviolet light spectrum and UV-A segment length's ripple ultraviolet spectra.(seeing figure three).The experiment proved that in the production process of vitamin D, when controlling the flow velocity and the transformation time of raw material well, under the photolysis of UV-B section medium wave Ultraluminescence lamp, the phototransformation rate can reach more than 80%, vitamin D ₂Yield be higher than 50%, be to adopt more than two times of high-pressure mercury lamp phototransformation rate and yield at present.Because UV-B section medium wave Ultraluminescence lamp of the present utility model belongs to low-pressure mercury vapour discharge-type fluorescent lamp, its firing device and general lighting are general with fluorescent lamp.So the surface temperature of its lamp is no more than 40 ℃ Celsius in lighting, therefore, do not need to add measures such as water cooling sleeve pipe and the explosion-proof sleeve pipe of steel.UV-B section ultraviolet fluorescent lamp can be made arbitrary shapes such as straight pipe type, ring-like, U type, H type in addition.

UV-B section medium wave Ultraluminescence lamp of the present utility model can become vitamin D with the ergosterol phototransformation ₂Be used for producing vitamin D ₂The phototransformation of 7-dehydrocholesterol is become vitamin D ₃, be used for producing vitamin D ₃Can also make human body become vitamin D with 7-hydrogen cholesterol phototransformation in the animal skin ₃, in human body and animal body behind a series of biochemical actions, make it to promote the metabolism of human body and animal to calcium phosphorus, thus can the effectively preventing rickets, malacosteon and osteoporosis, promote growing of human body and animal.

Compared with prior art, its emission spectrum of UV-B section medium wave Ultraluminescence lamp of the present utility model all concentrates in the UV-B section ultraviolet spectral range, does not contain or contain (on a small quantity) UV-C section short wave ultraviolet light spectrum and UV-A segment length's ripple ultraviolet spectra.UV-B section medium wave Ultraluminescence lamp of the present utility model can make its product yield greatly improve in the production process of vitamin D.And firing device and general lighting are general with fluorescent lamp, have economy, simple, safe characteristics.

Description of drawings

Fig. 1 is the glass transmittance curve figure of UV-B section medium wave Ultraluminescence lamp.

Fig. 2 is the emission spectrum figure of UV-B section medium wave Ultraluminescence lamp with fluorophor.

Fig. 3 is the emission spectrum figure of UV-B section medium wave Ultraluminescence lamp.

Fig. 4 is the structure chart of UV-B section medium wave Ultraluminescence lamp.Wherein 1 is the optical glass pipe, and 2 is luminescent coating, and 3 is mercury vapour, and 4 is stem stem, and 5 is filament frame, and 6 is filament, and 7 is pipe cap, and 8 is pin.

Embodiment

But the glass tube adopting quartz glass of UV-B section medium wave Ultraluminescence lamp, titanium glass etc., this example adopt a kind of soft glass material to draw and form.It can make above medium wave uv transmittance 〉=70% of 297nm, and sees through by UV-C section short wave ultraviolet light fully.

Its physical characteristic requires:

Average coefficient of linear expansion α value during 1, from 17 ℃ to 400 ℃ Celsius Celsius of room temperature is:

100 ℃ of time=9.3 * 10 ^-6

200 ℃ of time=9.2 * 10 ^-6

300 ℃ of time=9.3 * 10 ^-6

400 ℃ of time=9.5 * 10 ^-6

2, chemical stability (water repelling property)

Respectively sheet glass is immersed in the water of 50 ℃ and 80 ℃ Celsius after 216 hours, survey sheet glass immerse in the water before and after to 297nm uv transmittance situation (because the erythemal effect of 297nm wavelength ultraviolet light is 100%).Confirm that by result of the test its transmitance did not descend before and after this sheet glass was handled through above-mentioned situation.Illustrate that water repelling property was good when this glass used in a humid environment, moisture proof.

3, the transmitance of glass

Adopt Japanese bird Tianjin UV200 type ultraviolet specrophotometer to measure the transmitance of glass.Transmitance at the 297nm place is 70%.(seeing figure one)

The luminescent coating that UV-B section medium wave Ultraluminescence lamp is adopted be by the emission spectrum peak value under the 253.7nm ultraviolet excitation between 283nm～315nm rare earth ion or one or more the UV-B section fluorophor in the ion-activated alkaline earth metal borate system of transition element, phosphate system, aluminates system, silicate systems constitute.(seeing figure two).

As: (Ca, Zn, Gd) ₃(PO ₄) _2.14(Ca, SrO _1-x-y) B ₂O ₇: Pb _xGd _y(Li ₂Ca, Ba) ₃SiO ₄: Pb; SrAl ₂O ₇: Gd, Pb

With above-mentioned glass tube and fluorophor and other accessories, manufacture by common fluorescent lamp manufacturing process.Promptly obtain UV-B section medium wave Ultraluminescence lamp of the present utility model, and do not contain UV-C section ultraviolet ray (seeing figure four); As adopting quartz glass, titanium glass, UV-B section medium wave Ultraluminescence lamp emission spectrum then contains the ultraviolet ray of a small amount of UV-C section.

Claims

1, a kind of Ultraluminescence lamp is characterized in that UV-B section medium wave Ultraluminescence lamp; Form by optical glass pipe (1), luminescent coating (2), mercury vapor (3), stem stem (4), filament frame (5), filament (6), pipe cap (7) and pin (8);

Wherein: the fluorophor of luminescent coating (2) is made of one or more the fluorophor of UV-B section in the ion-activated alkaline earth metal borate system of rare earth ion or transition element, phosphate system, aluminates system, the silicate systems.

2, according to the described Ultraluminescence lamp of claim 1, the material that it is characterized in that described optical glass pipe is quartz glass, titanium glass or soft glass.

3, according to claim 1, it is characterized in that UV-B section ultraviolet fluorescent lamp can make arbitrary shapes such as straight pipe type, ring-like, U type, H type.

4,, it is characterized in that described luminescent coating is made of the fluorophor of the UV-B section of borate salt system according to the described Ultraluminescence lamp of claim 1.