TitleProduct

Bandpass Filter, Optical Glass, Dtb740

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Hebei

  • Validity to:

    Long-term effective

  • Last update:

    2017-11-24 22:34

  • Browse the number:

    290

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Company Profile

Shijiazhuang Zeyuan Optics Co., Ltd.

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Contact:Mr. Peter(Mr.)  

Email:

Telephone:

Area:Hebei

Address:Hebei

Website: http://zy-optics.china2fei.com/

Product Details

  • 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 (TM) wavelength of the peak (lM), front-cut-off wavelength, behind-cut-off wavelength, and half-peak width.
    The wavelength corresponding to the half of the maximum transmissivity are l2 and l1. And the half-peak width is determined by l2 - l1. 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.

    Technical Indexes 

     

    No. Type Maximum Transmissivity 
    (TM/λMnm)
    Front Cut-off 
    (T/λnm)
    Behind Cut-off 
    (T/λnm)
    Half-peak Width 
    (λ2-λ1)(nm)
    Thickness (nm)
    1 DTB400 >45/400+/-2 0/320+/-5 0/525+/-5 <90 2
    2 DTB435 >48/435+/-2 0/340+/-5 <2.0/540+/-5 <100 4
    3 DTB470 >40/470+/-2 0/340+/-5 0/600+/-5 <115 4
    4 DTB500 >48/500+/-2 0/380+/-5 0/630+/-5 <100 4
    5 DTB530 >48/530+/-2 0/420+/-5 0/670+/-5 <95 2
    6 DTB545 >48/545+/-2 0/400+/-5 0/720+/-5 <100 4
    7 DTB560 >40/560+/-2 0/435+/-5 0/725+/-5 <104 4
    8 DTB600 >36/600+/-2 0/470+/-5 <1.0/800+/-5 <95 4
    9 DTB660 >44/660+/-2 0/500+/-5 <2.0/800+/-5 <115 4
    10 DTB700 >28/700+/-2 <0.5/570+/-5 <2.0/820+/-5 <95 4
    11 DTB720 >50/720+/-2 0/500+/-5 <9.0/900+/-5 <140 4
    12 DTB740 >25/740+/-2 0/650+/-5 <4.0/900+/-5 <85 4