CN202691636U

CN202691636U - Light-emitting diode (LED) light source using glass filter

Info

Publication number: CN202691636U
Application number: CN2012201571961U
Authority: CN
Inventors: 张菡
Original assignee: Irico Group Corp
Current assignee: Irico Group Corp
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2013-01-23
Anticipated expiration: 2022-04-13

Abstract

The utility model discloses a light-emitting diode (LED) light source using a glass filter. The LED light source comprises an LED device with at least one LED chip and the filter installed on the LED device and used for filtering light emitted by the LED chip, wherein light emitted by the LED chip is transmitted to the external through the filter. The filter is arranged on the LED device with at least one LED chip, or a plurality of LED devices with LED chips share one filter. Any glass forming lighting lamp can be manufactured and meets the IEC 60825-2007, the IEC 6247-2006 and the light radiation safety national standard: GB/T 20145-2006 'light biomass safety of lamps and lamp systems' standard.

Description

A kind of LED light source with glass filter

Technical field

The utility model belongs to the LED lighting technical field.Be specifically related to a kind of led light source with glass filter of light filtering technique.

Technical background

Along with the appearance of ultra-bright LED, its efficient is more and more higher, and price descends gradually.Simultaneously LED have life-span length, vibration resistance, luminous efficiency high, noiseless, be not afraid of low temperature, without mercury pollution problem and cost performance high, large potentiality commodity of the alternative traditional lighting utensil of being had an optimistic view of by semicon industry.Ultra-high brightness LED has been expanded the application of LED in various signal display and lighting light source field greatly, such as lamp, various traffic lights inside and outside the automobile, indoor and outdoor information display screen and backlight.The LED product is used for illumination, will provides more wide application space for LED.

Along with the range of application of led light source is more and more extensive, the light radiation of led light source harm problem must be paid attention to.

The harm that the light that light radiation harm mainly refers to different-waveband causes the excessive irradiation of human body, mainly be to human eye and skin, such as near ultraviolet harm, the harm of retina blue light photochemistry, the harm of retina aphacia photochemistry, the harm of retina heat and the skin heat harm etc. of the harm of the photochemistry of skin and eyes, eyes, and easier among both what come to harm is eyes.In recent years, along with the day by day increase of great power LED, the brightness of LED is more and more higher, and radiation hazard is also more and more stronger.

In the wavelength band of light radiation, the short wavelength of purple, near ultraviolet, ultraviolet and near-infrared, infrared L-band be easier to cause biohazard.

Light radiation is as follows to the harm of eyes: 1) be subject to the ultra-violet radiation irradiation of certain hour when human body, can cause photic keratitis and photic conjunctivitis; 2) long-term UV-irradiation can cause cataract; 3) strong light radiation irradiation can cause retinal burn, and causing the most obvious wave band of effect of this harm is 430～450nm; 4) be accompanied by the harm of retina heat, radiation energy causes photochemistry harm to retina, even can cause the retinitis, and the light harm of wavelength 440nm is maximum; 5) be subject to for a long time the infra-red radiation impact and can cause cataract, the maximum wave band of harm is 770～1400nm.

And for skin, the injury that light radiation causes has: 1) durable tanned, causing rubefaction and the most significant sore wave band is the following ultra-violet radiation of 320nm; 2) skin aging, long-term radiation energy accelerates skin aging, presents drying, coarse, hide-like and the innumerable outward appearance of wrinkle; 3) cutaneum carcinoma is accepted for a long time the most serious result that ultra-violet radiation causes and is caused cutaneum carcinoma.

At present international and domesticly formulating a plurality of corresponding standards aspect the test evaluation of reflective optical security.But LED is difference and the new type light source of the coherent sources such as traditional incoherent light source and laser, also is at present the starting stage for the research of the test and evaluation method of the light radiation harm of LED.

Because LED is at the development of lighting field, CIE (International Commission on Illumination) has made regulation to the security of LED in the CIE of latest edition S009/E:2002 standard.LED is caused the spoke limit value that exposes to the sun of the harm such as near ultraviolet harm, the harm of retina blue light photochemistry, the harm of retina aphacia photochemistry, the harm of retina heat and skin heat harm of photochemistry harm, the eyes of skin and eyes made regulation.After CIE S 009/E:2002 standard was put into effect, IEC all quoted in 2002, and with published accordingly new standard IEC one 6247l in 2006, in issue IEC 60825-2007 in 2007, its importance had some idea of.

Domestic, the national standard " the photo-biological security of lamp and lamp system " that is directed to common incoherent, broadband lamp and lamp system is own in formal enforcement (GB/T 20145-2006) in 2006, and this standard instructs the photo-biological security of various light fixtures.

Thus, the light filtering technique technique in the LED lighting technical field and material become an important subject.The patent documentation of relevant led light source is a lot, but the patent that does not have pair purple, near ultraviolet, ultraviolet and near-infrared, infrared band to filter is not also about the patent report by the transparent base coating process of glass ware forming of ultraviolet-cutoff/infrared ray dual-use function.

The utility model content

The utility model provides a kind of use to have the led light source of ultraviolet-cutoff and infrared ray dual-functional glass optical filter.

A kind of led light source with glass filter comprises the LED device with at least one led chip, and the optical filter that is installed in the light that sends for the filtration led chip on the LED device.

The utility model is further characterized in that:

Described LED device is monochrome or polychrome.

Described optical filter is to be made of the transparent base plated film with ultraviolet-cutoff and the bifunctional glass ware forming of infrared ray.

Described transparent base plated film comprises the lens of the arbitrary surface of moulding, perhaps any diaphragm, perhaps any solid geometry shape.

Described transparent base surface is coated with ultraviolet cutoff rete and infrared ray cut rete, and described ultraviolet cutoff rete is positioned at the outermost layer that glass transparent substrate surface outermost layer or infrared ray cut rete are positioned at its transparent base; Described ultraviolet cutoff rete and infrared ray cut rete are coated with some layers.

Described ultraviolet cutoff thicknesses of layers is 10～500 nanometers; Its filter wavelength scope is set as below the 450nm.

Described infrared ray cut rete is by two kinds of stacking forming in high and low refractive index material film space.

Described infrared ray cut thicknesses of layers is 10～500nm; Its filter wavelength scope is set as greater than 750nm.

The utility model can be made the lighting of any glass ware forming shape, and meets IEC60825-2007 and IEC 6247-2006, and the reflective optical security national standard: GB/T 20145-2006 " the photo-biological security of lamp and lamp system " standard.

Description of drawings

Figure l is the structural profile schematic diagram that the utility model uses the led light source with ultraviolet-cutoff and infrared ray dual-functional glass optical filter;

Fig. 2 is the generalized section of led light source;

Fig. 3 is the common schematic diagram that uses the led light source of an optical filter formation of the device of a plurality of led chips.

Among the figure: 1 is led chip, and 2 is optical filter, and 3 is the LED device.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described further.

As scheme l, shown in Figure 2, the utility model uses the led light source with ultraviolet-cutoff and infrared ray dual-functional glass optical filter, comprise the LED device 3 with at least one led chip 1, and be installed on the LED device 3 optical filter 2 that is used for filtering the light that led chip 1 sends, wherein the light that sends of led chip 1 is transmitted into the outside through optical filter 2; Optical filter 2 can just add when encapsulation comprises led chip 1 device, also can install when the LED device is carried out secondary encapsulation, comprises that perhaps common optical filter 2(of use of device of a plurality of led chips 1 as shown in Figure 3).

The LED device can be monochrome or polychrome, and monochrome is the led chip of a certain emission wavelength of encapsulation in the LED device, makes its light that sends a kind of color, has a led chip in the LED device at least; Polychrome then is that the led chip with multiple different emission is encapsulated in the LED device jointly, such as the common encapsulation of the common encapsulation of red, blue, green three color chips or other color chip portfolio, forms mixed white light source.

Glass filter is to have ultraviolet-cutoff and the bifunctional transparent base plated film by glass ware forming of infrared ray forms, can absorbing wavelength less than the short wavelength range of 450nm and wavelength greater than the light in long wavelength's scope of 770nm.

The transparent base plated film comprises the lens of the arbitrary surface of moulding, perhaps any diaphragm, perhaps any solid geometry shape; The transparent base surface is coated with ultraviolet cutoff rete and infrared ray cut rete, and the ultraviolet cutoff rete is positioned at the outermost layer that glass transparent substrate surface outermost layer or infrared ray cut rete are positioned at its transparent base.As required according to some layers of ultraviolet cutoff rete of graded plating and infrared ray cut rete.

The ultraviolet cutoff thicknesses of layers is 10～500 nanometers; Its filter wavelength scope is set as below the 450nm.

The infrared ray cut rete is by two kinds of stacking forming in high and low refractive index material film space.The infrared ray cut thicknesses of layers is 10～500nm; Its filter wavelength scope is set as greater than 750nm.

The utility model uses the led light source with ultraviolet-cutoff and infrared ray dual-functional glass optical filter, can make the lighting of any shape, and meet IEC60825-2007 and IEC 6247-2006, and reflective optical security national standard: GB/T 20,145 2006 " the photo-biological security of lamp and lamp system ".

Claims

1. the led light source with glass filter is characterized in that comprising the LED device with at least one led chip, and the optical filter that is installed in the light that sends for the filtration led chip on the LED device.

2. according to the described led light source of claim l, it is characterized in that described LED device is monochrome or polychrome.

3. according to the described led light source of claim l, it is characterized in that described optical filter is to be made of the transparent base plated film with ultraviolet-cutoff and the bifunctional glass ware forming of infrared ray.

4. led light source according to claim 3 is characterized in that described transparent base plated film, comprises the lens of the curved surface of moulding, perhaps diaphragm, perhaps solid geometry shape.

5. led light source according to claim 3, it is characterized in that described transparent base surface is coated with ultraviolet cutoff rete and infrared ray cut rete, described ultraviolet cutoff rete is positioned at the outermost layer that glass transparent substrate surface outermost layer or infrared ray cut rete are positioned at its transparent base; Described ultraviolet cutoff rete and infrared ray cut rete are coated with some layers.

6. led light source according to claim 5 is characterized in that described ultraviolet cutoff thicknesses of layers is 10～500 nanometers; Its filter wavelength scope is set as below the 450nm.

7. led light source according to claim 5 is characterized in that described infrared ray cut rete is by two kinds of stacking forming in high and low refractive index material film space.

8. led light source according to claim 5 is characterized in that described infrared ray cut thicknesses of layers is 10～500nm; Its filter wavelength scope is set as greater than 750nm.