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AboutShijiazhuang Zeyuan Optics Co., Ltd. was founded in 1989. We are professional manufacturer integrating colored glass melting and optical filters producing.
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ProductsOur main products include heat absorbing filters, neodymium filter glass, rising color temperature glass, IR optical glass, UV pass optical filter glass, colored optical filters, neutral density filters, bandpass filters...
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BlogsOver the past thirty years since its establishment, our company has always adhered to the entrepreneurial spirit of proactive, innovative, perseverance to provide high-quality products and perfect services to many customers in domestic and abroad.
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ContactShijiazhuang Zeyuan Optics Co., Ltd. was founded in 1989. We are professional manufacturer integrating colored glass melting and optical filters producing.
Product
UV Longpass Filters ZJB Series
Focus on Colored Glass Melting and Optical Filters Manufacturing for Over 30 years'.
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- Product description
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Our products UV longpass Filters ZJB Series are colorless filter galss with an ultraviolet transmission, they are equivalent to longpass filters WG series of Germany Schott and optical filter UV Series of Japan Hoya.
UV longpass filter glass cut off the wavelength light shorter than a specific wavelength as much as possible, while transmitting the longer wavelength light as much as possible, within UV wavelength range. Their typical applications include fluorescent spectroscopy systems, medical equipments. Additionally, they are commonly used in conjunction with shortpass filters for bandpass filtration applications.
Characteristics of UV Longpass Filters
Type Thickness
A[2856k]
D65
Chemical Stability
ND
α×10-7
Tg
Ts
S
(mm)
x
y
Y
x
y
Y
DA
DW
(℃)
(℃)
(℃)
ZJB220
2
6
6
1.485
53
502
594
2.27
ZJB240
2
6
6
1.485
53
502
594
2.27
ZJB260
2
1
4
1.508
81
586
656
2.47
ZJB280
2
1
4
1.512
81
586
656
2.52
ZJB300
2
1
4
1.502
2.38
ZJB320
2
1.575
3.23
ZJB340
2
1
3
1.62
3.67
ZJB360
2
1.643
98
487
546
3.72
ZJB380
2
1
2
1.547
98
487
546
2.85
Technical Standard of UV Longpass Filters
Type Thickness
λtj
λ0
Tλ0
K
(mm)
(nm)
(nm)
(%)
ZJB220
2
220±10
300
≥89.5
≥0.5
ZJB240
2
240±10
330
≥89.5
≥0.5
ZJB260
2
260±10
340
≥89.5
≥0.5
ZJB280
2
280±10
350
≥89.5
≥0.5
ZJB300
2
300±10
350
≥89.5
≥1.0
ZJB320
2
320±10
400
≥89.5
≥1.0
ZJB340
2
340±10
420
≥88.0
≥0.8
ZJB360
2
360±10
440
≥87.0
≥1.0
ZJB380
2
380±10
500
≥86.0
≥0.8
Quality Level of UV Longpass Filters
Type
Bubble
Stripe
Stress
ZJB220
D
3C
3
ZJB240
D
3C
3
ZJB260
B
3C
3
ZJB280
B
3C
3
ZJB300
B
3C
3
ZJB320
C-B
3C
3
ZJB340
C-B
3C
3
ZJB360
C-B
3C
3
ZJB380
B
3C
3
Product Inquiry
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OPTICAL LENS EXPERT
We truly realize one-stop service from raw material melting to end product production, and provide customers with a full range of technical solutions.
CONTACTEZ-NOUS
Tel/WhatsApp: +86-13722872933
Email: zyoptics@zygx.cn
Add: Xiqiaotou Industrial Area, Shenze County, Shijiazhuang, Hebei, China
SUIVEZ-NOUS
