Positive Fresnel Lenses

Positive Fresnel Lenses can be designed as a collimator, collector or with finite conjugates. They are usually corrected for spherical aberration.

Part   Number1
Focal Length
Facet Spacing
Fresnel Conjugate
Plano Conjugate
Clear Aperture
SC 230
6.3
0.102
6.3
infinite
10.0
SC 245
10.8
0.125
10.8
infinite
6.4
SC 926
16.1
0.102
infinite
16.1
7.0
SC 231
16.3
0.127
infinite
16.3
18.0
SC 259
18.3
0.254
infinite
18.3
17.3
SC 253
24.0
0.475
infinite
24.0
23.3
SC 256
26.6
0.508
infinite
26.6
59.7
SC 258
28.7
0.635
infinite
28.7
45.0
SC 234
38.0
0.381
38.0
infinite
56.3
SC 244
40.8
0.381
40.8
infinite
86.9
SC 297
42.4
0.076
42.4
infinite
29.8
SC 252
48.3
0.076
48.3
infinite
63.3
SC 235
50.8
0.229
infinite
50.8
77.0
SC 241
51.0
0.762
51.0
infinite
109.8
SC 211
57.8
0.076
263.9
74.0
88.4
SC 277
68.5
0.076
infinite
68.5
88.9
SC 250
69.6
0.279
infinite
69.6
75.4
SC 236
72.5
0.279
infinite
72.5
101.3
SC 251
76.3
0.127
76.3
infinite
82.1
SC 237
77.5
0.254
infinite
77.5
59.4
SC 949
97.1
0.254
infinite
97.1
201.8
SC 242
101.1
0.305
101.1
infinite
85.8
SC 239
102.8
0.508
infinite
102.8
133.9
SC 228
111.8
0.508
infinite
111.8
164.0
SC 255
128.3
0.254
infinite
128.3
126.7
SC 948
129.1
0.350
infinite
129.1
180.5
SC 209
137.8
0.254
infinite
137.8
151.0
SC 248
151.7
0.127
151.7
infinite
152.9
SC 249
152.0
0.381
152.0
infinite
205.4
SC 223
152.8
0.254
infinite
152.8
202.4
SC 246
203.0
0.457
infinite
203.0
228.9
SC 950
219.0
0.302
infinite
219.0
223.3
SC 210
225.5
0.178
2007.0
254.0
257.6
SC 264
234.7
0.508
infinite
237.7
253.1
SC 917
239.6
0.152
infinite
239.6
386.4
SC 921
253.6
0.254
infinite
253.6
179.0 x 128.4
SC 221
254.1
0.508
infinite
254.1
255.8
SC 928
255.3
0.152
infinite
255.3
386.6
SC 208
279.3
0.508
infinite
279.3
405.8
SC 205
282.8
0.076
610.0
531.5
330.4
SC 268
304.6
0.508
infinite
304.6
291.9
SC 240
317.0
0.205
infinite
317.0
382.4
SC 934
336.5
0.152
infinite
336.5
386.0
SC 265
385.6
0.508
626.9
1013.6
324.0
SC 2045
391.5
0.508
6096.0
419.0
452.9
SC 229
400.0
0.508
infinite
400.0
386.0
SC 903
500.5
0.508
1500.0
750.0
657.0
SC 943
502.1
0.100
infinite
502.1
549.7
SC 273
505.8
0.203
749.0
1575.0
405.9
SC 214
607.8
0.508
infinite
607.8
460.9
SC 922
698.6
0.508
infinite
698.6
615.7
SC 213-600
763.4
0.508
infinite
763.4
600.0 x 590.0
SC 2135
764.0
0.508
infinite
764.0
437.3
  • All dimensions in mm.
  • Focal lengths listed apply to 546nm in PMMA (max. tolerance ± 5%).
  • The outside size may be up to 5 - 20mm beyond the clear aperture.
  • The standard thickness is 1.8mm ± 0.3.
  • Other dimensions or special trimmings can be realised upon request.
  • Special designs possible on request.