Stock due 15th January
SPT laser focus lens is made of CVD ZnSe which imported from USA, Low material absorptivity, can withstand high power density, firm surface layer, not easy to fall off. The double-sided coating ZnSe laser focus lens, its main function is to reduce or eliminate the reflective light on the optical surface, to increase the transmittance of these components and reduce or eliminate the stray light of the system.
Antireflective films with various requirements have been designed for wide ranges of use: Single-wavelength antireflective coatings, broadband antireflective coatings, ultra-wide-band antireflective coatings, dual-band antireflective coatings, dual-wavelength antireflective coatings and so on. 10.6um, the common use wavelength in CO2 laser industry, can reach 99.8% transmittance.
As a most economical transmission laser focus components, laser focus lens is widely used in laser heat treatment, welding, cutting and infrared radiation collection. In order to obtain satisfactory performance and achieve the purpose that the surface of the laser lens should be towards the direction of imputed light beam towards the conjugate distance the longer end. (object distance and image distance are called conjugate distance).
Main Premeters of CO2 laser focus lenses
| Material：ZnSe/GaAs |
Wavelength：10.6μm |
| Surface quality：20-10 scratch and dig |
Centration：<3' arc minutes |
| Focal length tolerance：±1% |
Bevelling：<0.2x45° |
| Diameter tolerance：+0.0/-0.12mm |
Effective aperture：>90% |
| Thickness tolerance：±0.2mm |
Coating：R<0.5% per surface @10.6μm |
| Surface Accuracy：4<λ/2per 1” Dia@632.8nm |
Specification of SPT Laser focus lense:
|
Model
|
Diameter (mm)
|
Focal Length (mm)
|
Thickness (mm)
|
Material
|
|
SPT12.7-2.0-1.8
|
12.0
|
50.8
|
1.8
|
PVDZnSe / GaAs
|
|
SPT14.5-1.5-1.8
|
14.5
|
38.1
|
1.8
|
CVD ZnSe
|
|
SPT14.5-2.0-1.8
|
14.5
|
50.8
|
1.8
|
CVD ZnSe
|
|
SPT15.26-1.5-1.8
|
15.26
|
38.1
|
1.8
|
CVD ZnSe
|
|
SPT16.0-1.5-2.0
|
16.0
|
38.1
|
2.0
|
CVD ZnSe
|
|
SPT16.0-2.0-2.0
|
16.0
|
50.8
|
2.0
|
CVD ZnSe
|
|
SPT18.0-1.5-2.0
|
18.0
|
38.1
|
2.0
|
CVD/PVD ZnSe
|
|
SPT18.0-2.0-2.0
|
18.0
|
50.8
|
2.0
|
CVD/PVD ZnSe
|
|
SPT18.0-2.5-2.0
|
18.0
|
63.5
|
2.0
|
CVD/PVD ZnSe
|
|
SPT18.0-3.0-2.0
|
18.0
|
76.2
|
2.0
|
CVD/PVD ZnSe
|
|
SPT18.0-4.0-2.0
|
18.0
|
101.6
|
2.0
|
CVD/PVD ZnSe
|
|
SPT19.05-1.5-2.0
|
19.05
|
38.1
|
2.0
|
CVD/PVD ZnSe
|
|
SPT19.05-2.0-2.0
|
19.05
|
50.8
|
2.0
|
CVD/PVD ZnSe
|
|
SPT19.05-2.5-2.0
|
19.05
|
63.5
|
2.0
|
CVD/PVD ZnSe
|
|
SPT19.05-3.0-2.0
|
19.05
|
76.2
|
2.0
|
CVD/PVD ZnSe
|
|
SPT19.05-4.0-2.0
|
19.05
|
101.6
|
2.0
|
CVD/PVD ZnSe
|
|
SPT20.0-1.5-2.0
|
20.0
|
38.1
|
2.2
|
CVD ZnSe/ GaAs
|
|
SPT20.0-2.0-2.0
|
20.0
|
50.8
|
2.2
|
CVD ZnSe/ GaAs
|
|
SPT20.0-2.5-2.0
|
20.0
|
63.5
|
2.2
|
CVD ZnSe/ GaAs
|
|
SPT20.0-3.0-2.0
|
20.0
|
76.2
|
2.5
|
CVD ZnSe/ GaAs
|
|
SPT20.0-4.0-2.0
|
20.0
|
101.6
|
2.5
|
CVD ZnSe/ GaAs
|
|
SPT1.0"-2.0-3.0
|
25.4
|
50.8
|
3.0
|
CVD ZnSe
|
|
SPT1.0"-2.5-3.0
|
25.4
|
63.5
|
3.0
|
CVD ZnSe
|
|
SPT1.0"-3.0-3.0
|
25.4
|
76.2
|
3.0
|
CVD ZnSe
|
|
SPT1.0"-4.0-3.0
|
25.4
|
101.6
|
3.0
|
CVD ZnSe
|
|
SPT1.0"-5.0-3.0
|
25.4
|
127.0
|
3.0
|
CVD ZnSe
|
|
SPT1.1"-2.0-3.0
|
27.94
|
50.8
|
3.0
|
CVD ZnSe
|
|
SPT1.1"-2.5-3.0
|
27.94
|
63.5
|
3.0
|
CVD ZnSe
|
|
SPT1.1"-3.0-3.0
|
27.94
|
76.2
|
3.0
|
CVD ZnSe
|
|
SPT1.1"-4.0-3.0
|
27.94
|
101.6
|
3.0
|
CVD ZnSe
|
|
SPT1.1"-5.0-3.0
|
27.94
|
127.0
|
3.0
|
CVD ZnSe
|
|
SPT1.5"-3-4.0
|
38.1
|
76.2
|
4.0
|
CVD ZnSe
|
|
SPT1.5"-5-4.0
|
38.1
|
127.0
|
4.0
|
CVD ZnSe
|
|
SPT 1.5"-7.5-4.0
|
38.1
|
190.5
|
4.0
|
CVD ZnSe
|
|
SPT 1.5"-5-0.31"
|
38.1
|
127.0
|
7.87
|
CVD ZnSe
|
|
SPT1.5"-7.5-0.31"
|
38.1
|
190.5
|
7.87
|
CVD ZnSe
|
|
SPT 1.5"-5.0-0.35"
|
38.1
|
127.0
|
9.00
|
|
UK deliveries
This product will be shipped on a next-day service by DHL. For Highlands, Islands, Northern Ireland and remote areas a DHL 48-hour service applies. Prices* start from:
£6.50 for up to 1kg
£7.25 for up to 5kg
£7.50 for up to 10kg
£8.00 for up to 15kg
£9.50 for up to 20kg
Then in bands of 5kg up to 200kg. From 201kg to 300kg in bands of 10kg and from 301kg in bands of 25kg
For larger orders (over 200kg), a pallet network may be used but this will be discussed with our customers first.
Overseas deliveries
We only ship to European destinations. Please see “Shipping” under sales Information at the foot of his page. Prices from £26.92* for 30kg
*correct as at 10.02.2023
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