Descrption of borofloat 33 plate glass

Band-pass filter glass(DTB)

    This kind of glass only transmits the light within a narrow wavelength range as shown in figure.Its spectral 

characteristic is composed of maximum transmissivity wavelength of the peak,front-cut-off wavelenght,behind-cut-off 

wavelength,and half-peak width.

     The wavelength corresponding to the half of the maximum transmissivity areλ2 and λ1. And the half_peak width is

 determined by λ2 -λ1. Front (behind)-cut-off wavelength is corresponding to the wavelength of “zero” transmissivity. 

     But there are a few types which transmissivities of the behind-cut-off wavelengthes can’t approach to zero,then they 

are determined by the transmissivity of the certain wavelength.

Band-pass filter glass is named DTB,and wavelength of the peak is used as its serial number.

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More products of borofloat 33 plate glass

China Nantong Yinxing Optical Co.,Ltd., founded in the early 1980s, situated in Jiangsu Province of China, is a

large optical glass manufacturer. It major supplies include colored and uncolored optical glass,optical coating filters,

light and color filters, color filtering lens, insulating glass, quartz glass, infrared penetrating glass, near-infrared

penetrating glass, UV glass, black UV penetrating glass (wavelengths: 254nm, 310nm, 365nm), ND glass, orange, green

and yellow glass, band-pass filter, and filters for currency count machine. Their applications include mainly photographing

apparatus, meter and instrument, optical devices, medical treatment apparatus, teaching apparatus, projectors, UV analyzers,

financial equipment, airport lamps and military equipment, technological research institutes and public security

departments. The products have been exported to Europe, the US, Southeast Asia, Japan, South Korea, Hong Kong,

Macao and Taiwan and been highly recognized by users..

     For a long period, we have been in pursuit of sound cooperation relationships with our clients, anchored by corporate

spirit of integrity, good faith and diligence, quality products and competitive prices. The company embraces the team

spirit of preciseness, efficiency and collaboration, makes innovations and progress continuously, and endeavors to

develop into the largest, strongest and best optical glass manufacturer in China.

     Looking into the future, we are confident. The developing China Nantong Yinxing Optical Co.,Ltd. is aiming to reach

a new peak, to make more outstanding contributions to the development of the optical glass sector with improved quality

products and services, and to create a brighter future for the enterprise. 35years professional experience in optical filter ,

Uv filter, Borosilicate Glass manufacture,we supply filters from UV to near-infrared.quartz glass! Superior quality, low price,

perfect service. Large supply optical filter , Uv filter, Borosilicate Glass.

High hydrolytic resistance

Excellent resistance to acids

High resistance to alkalis

Low alkali diffusion

Very good temperature stability

Optical filters are flexible packaging in carton. There are several different size of the carton, 20*25*15cm;

45*40*25cm; 60*50*35cm. We can make sure the safety of the optical filters during shipping