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Deln optics makes a lot of Candela focusing lenses for Fiber and YAG lasers. The surface polishing quality and coating of these lenses are excellent and will work for 755nm and 1064nm or both 755nm &1064nm. Inventory specifications are as follows:
Material N-BK7 Dimension Tolerance +0/-0.1mm Thickness Tolerance ±0.1mm Surface Quality 40-20 or better Power(fringe@633nm) 3 Irregularity(fringe@633nm) 0.5 Centration <3 arc minutes Focal Length Tolerance ±2% AR V Coating 755nm or 1064nm or Dual-V Coating@755nm & 1064nm
Material
N-BK7
Dimension Tolerance
+0/-0.1mm
Thickness Tolerance
±0.1mm
Surface Quality
40-20 or better
Power(fringe@633nm)
3
Irregularity(fringe@633nm)
0.5
Centration
<3 arc minutes
Focal Length Tolerance
±2%
AR V Coating
755nm or 1064nm or Dual-V Coating@755nm & 1064nm
Stock No. Dia.(mm) EFL(mm) CT(mm) VAR Coating(nm) Shape LB01-090012-1 9 12 2.9 755 DCX LA01-110020-1 11 20 4.2 PCX LA01-120024-1 12 24 2.8 LA01-127020-1 12.7 20 4.2 LA01-150020-1 15 20 5.2 LA01-150040-1 15 40 3.5 LA01-254050-1 25.4 50.8 4.9 LA01-254063-1 25.4 63.5 4.75 LA01-080030-2 8 30 2 1064 LA01-127020-2 12.7 20 4.2 LA01-254040-2 25.4 40 5.6 LA01-254050-2 25.4 50.8 4.9 LA01-180036-3 18 36 3.57 Dual 755&1064
Stock No.
Dia.(mm)
EFL(mm)
CT(mm)
VAR Coating(nm)
Shape
LB01-090012-1
9
12
2.9
755
DCX
LA01-110020-1
11
20
4.2
PCX
LA01-120024-1
24
2.8
LA01-127020-1
12.7
LA01-150020-1
15
5.2
LA01-150040-1
40
3.5
LA01-254050-1
25.4
50.8
4.9
LA01-254063-1
63.5
4.75
LA01-080030-2
8
30
2
1064
LA01-127020-2
LA01-254040-2
5.6
LA01-254050-2
LA01-180036-3
18
36
3.57
Dual 755&1064
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