Bi-concave spherical lenses «In Stock»
Bi-concave spherical lenses feature two spherical concave surfaces with the same radius of curvature, while their focal length is negative. The performance of these lenses is best when used for finite conjugate (0,2X - 5X ratio) applications, most often to diverge converging light.
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SPECIFICATION
SKU
PRICE
Qty. of stock
QUANTITY
Schott SF57; ⌀29 mm; 4,8 mm; -15,417 mm; 40-20 S-D; <λ/4; uncoated
1066
30 €
2
FS; ⌀25,4 mm; 5,5 mm; -46,34 mm; 40-20 S-D; <λ/4; uncoated
1177
30 €
5
BK7; ⌀25,4 mm; 4,8 mm; -77,98 mm; 40-20 S-D; <λ/4; uncoated
1183
20 €
2
UVFS; ⌀21 mm; 4,3 mm; -85,4 mm; 40-20 S-D; <λ/4; AR/AR(R<3%@450,532+R<0,3%@1030)
1234
20 €
5
UVFS; ⌀10 mm; 1,5 mm; +0/-0,1 mm; ±0,1 mm; 10,4518 mm; >90%; 20-10 SD; <λ/4@632,8 nm; <0,2 mm at 45°; AR(R<0,2%)@325 nm, AOI=0deg; (+/-0,005 mm
12857
Request
3
UVFS; ⌀10 mm; 1,5 mm; +0/-0,1 mm; ±0,1 mm; 10,4518 mm; >90%; 20-10 SD; <λ/4@632,8 nm; <0,2 mm at 45°; uncoated; (+/-0,005 mm
12858
Request
>5
UVFS; ⌀10 mm; 1,5 mm; +0/-0,1 mm; ±0,1 mm; S1=10,45 mm, S2=10,42 mm; >90%; 20-10 SD; <λ/4@632,8 nm; <0,2 mm at 45°; AR/AR (R<0,25%)@325nm; (+/-0,005 mm
15761
Request
1
BK7; ⌀26 mm; 5,5 mm; +0/-0,1 mm; (+/-0,2); R1:-31,7 mm; R2:-49,3 mm; >85 %; 20/40SD; <λ/4@632,8 nm; AR@400-700nm
17271
Request
1
UVFS; ⌀12,7 mm; 2,5 mm; +0/-0,1 mm; ±0,5 mm; -25 mm; ±1%; >90%; 20-10 S-D; <λ/4@632,8 nm; <3 arcmin; <0,35 mm at 45°; AR (R< 0,1%)@940-969 nm (optimized for kW CW lasers)
20640
Request
2
UVFS; ⌀25,4 mm; 4,3 mm; -138,68 mm; 40-20 S-D; <λ/4; uncoated
2755
30 €
>5
UVFS; ⌀14 mm; 3,4 mm; -36,31 mm; 40-20 S-D; <λ/4; uncoated
2860
20 €
1
BK7; ⌀15 mm; 2,7 mm; +0/-0,1 mm; ±0,1 mm; ROC1=-41,11 mm, ROC2=41,11 mm; >90%; 20-10 SD; <λ/4@632,8 nm; <0,2 mm at 45°; uncoated
29321
Request
1
BK7; ⌀25 mm; 8 mm; -26,67 mm; 40-20 S-D; <λ/4; uncoated
3005
20 €
2
30329
Request
5
FS; ⌀25,4 mm; 6,7 mm; -91,62 mm; 40-20 S-D; <λ/4; uncoated
3045
30 €
>5
FS; ⌀25,4 mm; 5,5 mm; -46,34 mm; 40-20 S-D; <λ/4; AR/AR(R<0,2%)@633nm
3108
30 €
1
UVFS; ⌀25,4 mm; 3,8 mm; -183,65 mm; 40-20 S-D; <λ/4; uncoated
3189
30 €
3
UVFS; ⌀15 mm; 4,3 mm; +0/-0,1 mm; ±0,1 mm; ROC1=-40 mm, ROC2=-40 mm; >90%; 40-20 S-D; <λ/4@632,8 nm; <0,2 mm at 45°; polished, uncoated
32012
Request
4
FS; ⌀27 mm; 4 mm; -91,62 mm; 40-20 S-D; <λ/4; AR/AR@
3540
30 €
1
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