|
Standard �-Theta Lenses for CO2 10.6μm (Flat field type - 2 element version)
|
Part No. |
FL
(mm) |
SA
(��) |
SL
(mm) |
SAR
(mm x mm) |
MI
(mm) |
AS
(mm) |
Length (mm) |
MO
(mm) |
MT |
WD
(mm) |
|
STS-9102/181 |
100.00 |
25.00 |
87.00 |
61x61 |
10.00 |
18.50 |
47.00 |
90.00 |
M85x1 |
65.00 |
|
STS-9160/181 |
159.90 |
25.00 |
142.00 |
100x100 |
12.00 |
18.50 |
47.00 |
90.00 |
M85x1 |
160.00 |
Remark: FL=focal length; SA=scan angle; SAR=scan area; MI=max. input beam
diameter; MO=max. outside diameter; MT=mounting thread; WD=working distance;
PW=protective windows.
Telecentric �-Theta Lenses for CO2 10.6μm
|
Part No. |
FL
(mm) |
SA
(��) |
SL
(mm) |
SAR
(mm x mm) |
MI
(mm) |
AS
(mm) |
Length (mm) |
MO
(mm) |
MT |
WD
(mm) |
|
STS-9105/181 |
106.00 |
20.00 |
72.00 |
50x50 |
10.00 |
37.37 |
66.00 |
120.00 |
M85x1 |
131.40 |
|
STS-9260/181 |
158.80 |
18.00 |
98.00 |
69x69 |
12.00 |
37.37 |
124.50 |
130.00 |
M85x1 |
227.30 |
STU2 Series Mounted 2-element F-theta Lenses
These
doublet (STU2) and triplet scanning (STU3) lenses are intended to work with the
same configuration of scanning mirrors and beam sizes as the STSL single-element
lenses, but are offered at the shorter focal lengths where better performance is
possible. The doublets have focal lengths from 75 to 300mm. Above 300mm the
benefits of using a doublet are not great. The triplets are offered in two focal
lengths, 75 and 100mm. These give diffraction limited performance and even
further improvement over the corresponding doublet.
All
the lenses are made from laser grade ZnSe. Each of the lenses comes in a black
anodized aluminium mount and can also be fitted with a ZnSe protection window as
an option.
Specifications:
|
Material: |
All elements and protection window made from Laser Grade
ZnSe. |
|
Mount details: |
See Figure 10.51. |
|
Beam diameter: |
Up to 15mm (12mm 1/e2) |
|
Optical scan field: |
+/-20� in X and Y. |
|
Focal length: |
Within 1%. |
|
Absorption: |
< 0.25% per element. |
|
Transmission: |
> 99.6% per element coated AR/AR for 10.6mm. |
|
Damage threshold: |
CW 3000W/mm at 10.6mm. |
|
Part no |
Field size (mm sq) |
Focal length (mm) |
Average focused spot dia (mm) |
Standard deviation of spot dia (mm) |
Working distance, WD no window(mm) |
Working distance, WD with window(mm) |
Max. Fq error X axis(%) |
Max. Fq error Y axis(%) |
|
STU2-10.6-50-75 |
50 |
75.0 |
118 |
25 |
60.27 |
62.03 |
-2.4 |
-2.4 |
|
STU2-10.6-70-100 |
70 |
100.0 |
139 |
22 |
87.57 |
89.34 |
-1.5 |
-1.4 |
|
STU2-10.6-105-151 |
105 |
151.4 |
171 |
0 |
149.06 |
150.84 |
0.9 |
0.9 |
|
STU2-10.6-140-200 |
140 |
200.0 |
225 |
0 |
213.94 |
215.73 |
1 |
1 |
|
STU2-10.6-175-250 |
175 |
250.0 |
282 |
0 |
261.36 |
263.17 |
1.3 |
1.3 |
|
STU2-10.6-210-300 |
210 |
300.0 |
338 |
0 |
312.06 |
313.87 |
1.5 |
1.5 |
(4)
F-theta scan lenses for CO2 laser - Triple element
made of ZnSe
|
Part No. |
Wave-length (um) |
EFL(mm) |
WD (mm) |
Mirror Scanning angle |
Scanning area(mm�) |
Entrance beam size
(mm) |
Mirrors separation (a2-a1)
(mm) |
Last mirror to first lens(a1)
(mm) |
Focused spot size
(um) |
Connection thread |
Total length(mm) |
|
SL3-9.4-50-80W |
9.4 |
80 |
89.4 |
+/- 25۫ |
50X50 |
14 |
18 |
18 |
84.5 |
M85X1 |
39.20 |
|
SL3-9.4-60-105Z |
9.4 |
105 |
60.1 |
+/- 25۫ |
60X60 |
14 |
18 |
21 |
88.5 |
M85X1 |
86 |
|
SL3-10.6-50-80W |
10.6 |
80 |
89.4 |
+/- 25۫ |
50X50 |
14 |
18 |
18 |
84.5 |
M85X1 |
39.20 |
|
SL3-10.6-60-105Z |
10.6 |
105 |
60.1 |
+/- 25۫ |
60X60 |
14 |
18 |
21 |
88.5 |
M85X1 |
86 |
STU3 Series Scan Lenses
-
focal lengths 75 and 100mm respectively
-
the 75mm focal length lens is also nearly
telecentric (see below) with the focused beam less than 5� to the normal
diffraction limited performance over the entire image plane
-
virtually zero F-theta error
-
can be fitted with a protective window
|
Part No. |
Wavelength
(um) |
EFL (mm) |
Scan area
(mm) |
Entrance
(mm) |
Spot dia.
(mm) |
|
STU3-10.6-50-75 |
10.6 |
75 |
50x50 |
15 |
89 |
|
STU3-10.6-70-100 |
10.6 |
100 |
70x70 |
15 |
113 |
|
(3) Mounted 2-element Scan
Lenses, STC Series 
