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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
1000 Hours Weatherability IR Cut Filter ZY51
Focus on Colored Glass Melting and Optical Filters Manufacturing for Over 30 years'.
Keywords：
Category：
- Product description
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Our product Optical Filter Glass ZY51 Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near-infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating. There are also filters which are used in solid state (CCD or CMOS) video cameras to block IR due to the high sensitivity of many camera sensors to near-infrared light. These filters typically have a blue hue to them as they also sometimes block some of the light from the longer red wavelengths.
Main Application: Camera Lens, CCTV Lens, Optical Instruments.
Optical Filter ZY51 Characteristics
Type
ZY51
Refractive index Nd
1.517
Conversion temperature Tg [℃]
460
Softening temperature Ts [℃]
510
Water resistance [level]
1
Acid resistance [level]
4
Weatherability 85℃/85% RH
1000 hr
Thickness
T=0.55mm
Central Wavelength 50%
645+/-5nm
400nm
≥89%
500nm
≥90.5%
600nm
≥69%
700nm
≤30%
1100nm
≤29%
λ(nm)=Wavelength
T%=Transmittance
λ(nm)
T%
λ(nm)
T%
λ(nm)
T%
λ(nm)
T%
λ(nm)
T%
λ(nm)
T%
1100
27.4
945
14.1
790
11.7
635
54.2
480
91.2
325
11
1095
27
940
13.8
785
12
630
56.7
475
91.2
320
4.2
1090
26.5
935
13.5
780
12.3
625
59.2
470
91.2
315
1.1
1085
26
930
13.2
775
12.7
620
61.7
465
91.2
310
0.2
1080
25.5
925
12.9
770
13.2
615
64.2
460
91.2
305
0.1
1075
25
920
12.7
765
13.7
610
66.6
455
91.1
300
0.1
1070
24.5
915
12.4
760
14.2
605
68.9
450
91.1
295
0.1
1065
24
910
12.2
755
14.8
600
71.1
445
91.1
290
0.1
1060
23.6
905
12
750
15.5
595
73.2
440
91
285
0.1
1055
23.1
900
11.7
745
16.2
590
75.2
435
91
280
0.1
1050
22.6
895
11.5
740
17
585
77.2
430
90.9
275
0.1
1045
22.1
890
11.4
735
17.8
580
78.9
425
90.8
270
0.1
1040
21.7
885
11.2
730
18.8
575
80.5
420
90.8
265
0.1
1035
21.2
880
11
725
19.8
570
82
415
90.6
260
0.1
1030
20.8
875
10.9
720
20.9
565
83.3
410
90.5
255
0.1
1025
20.3
870
10.8
715
22.1
560
84.5
405
90.4
250
0.1
1020
19.9
865
10.7
710
23.5
555
85.6
400
90.1
245
0.1
1015
19.4
860
10.6
705
24.9
550
86.6
395
89.8
240
0
1010
19
855
10.5
700
26.4
545
87.3
390
89.3
235
0.1
1005
18.6
850
10.5
695
28
540
88
385
88.7
230
0.1
1000
18.2
845
10.4
690
29.7
535
88.6
380
87.9
225
0.1
995
17.8
840
10.4
685
31.5
530
89.1
375
86.7
220
0.1
990
17.3
835
10.4
680
33.4
525
89.4
370
84.9
215
0.1
985
17
830
10.5
675
35.5
520
89.4
365
82.3
210
0.1
980
16.6
825
10.5
670
37.5
515
89.7
360
78.5
205
0.2
975
16.2
820
10.6
665
39.6
510
89.8
355
73.8
200
0.2
970
15.8
815
10.7
660
42
505
90.9
350
66.9
965
15.5
810
10.8
655
44.3
500
91
345
57.9
960
15.1
805
11
650
46.7
495
91.1
340
46.7
955
14.8
800
11.2
645
49.2
490
91.1
335
34.1
950
14.4
795
11.4
640
51.7
485
91.2
330
21.5
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
