Production Capabilities:
Diameter(Φ): 2.00-250.00 mm
Material: Glasses,Crystals......
Surface Accuracy: 1-3.0 fringes power
Surface Irregularity : ≤0.3 fringes power(0.15λ)
Surface Quality: 10-5 scratch-dig
Center Thickness(Tc): ≥0.5mm
Center Thickness Accuracy: ± 0.01 mm
Centration Accuracy : 0.5- 3 arc minutes
Clear Aperture: ≥ 90% of diameter
Common Specifications: Material: N-BK7 grade A, fine annealed Surface Accuracy: 1.5λ Focal Length( f ) Tolerance: ± 2% Surfce Irregularity : 0.25λ Diameter(Φ) Tolerance: -0.20mm Surface Quality: 60-40 scratch-dig Center Thickness(Tc): ± 0.1mm Concentricity: 3 arc minutes Clear Aperture: 90% Φ Bevel: 0.2mm x 45º Coating Curve: Antireflection Coating |
- PART NO.
- Φ
- f
- fb
- Tc
- Te
- R1
- R2
- SL-202601
- 25
- -2000
- -1986.9
- 3
- 3.1
- 600
- 381.9
- SL-202602
- 25
- -1500
- -1491.5
- 3
- 3.1
- 616.6
- 342
- SL-202603
- 25
- -1000
- -994.5
- 3
- 3.1
- 559.8
- 267.9
- SL-202604
- 25
- -800
- -795.6
- 3
- 3.2
- 630.9
- 250
- SL-202605
- 25
- -600
- -569.8
- 3
- 3.2
- 600
- 204.5
- SL-202606
- 25
- -500
- -496.5
- 3
- 3.3
- 232.8
- 122.46
- SL-202501
- 25
- -400
- -297.2
- 3
- 3.4
- 232.8
- 109.15
- SL-202502
- 25
- -300
- -298.3
- 3
- 3.5
- 232.8
- 93.11
- SL-202503
- 25
- -250
- -248.5
- 3
- 3.6
- 232.8
- 83.31
- SL-202504
- 25
- -200
- -199.5
- 3
- 3.7
- 89.74
- 47.42
- SL-202505
- 25
- -175
- -174.4
- 3
- 3.8
- 89.74
- 44.46
- SL-202506
- 25
- -150
- -149.1
- 3
- 4
- 90.36
- 41.3
- SL-202507
- 25
- -100
- -99.1
- 3
- 4.5
- 93.11
- 32.89
- SL-022501
- 25
- 100
- 97.4
- 4
- 2.5
- 33.34
- 89.74
- SL-022502
- 25
- 125
- 121.7
- 4
- 2.8
- 38.01
- 88.3
- SL-022503
- 25
- 150
- 146.2
- 4
- 3
- 41.78
- 88.3
- SL-022504
- 25
- 200
- 196.8
- 3.5
- 2.8
- 48.31
- 88.72
- SL-022505
- 25
- 250
- 246.3
- 3.5
- 2.9
- 83.31
- 227
- SL-022506
- 25
- 300
- 296.1
- 3.5
- 3
- 93.11
- 228.25
- SL-022507
- 25
- 350
- 345.7
- 3.5
- 3.1
- 102.09
- 228.25
- SL-022508
- 25
- 400
- 395.4
- 3.5
- 3.1
- 110.1
- 232.8
- SL-022601
- 25
- 500
- 492.2
- 4.5
- 3.3
- 123.59
- 232.8
- SL-022602
- 25
- 600
- 594
- 4
- 3
- 204.5
- 600
- SL-022603
- 25
- 800
- 792.9
- 4
- 3.2
- 250
- 630.9
- SL-022604
- 25
- 1000
- 991.8
- 4
- 3.4
- 267.9
- 559.8
- SL-022605
- 25
- 1500
- 1489
- 4
- 3.6
- 328.1
- 559.8
- SL-022606
- 25
- 2000
- 1986.1
- 4
- 3.7
- 381.9
- 600
- SL-202607
- 25.4
- -2000
- -1988.5
- 3
- 3.1
- 600
- 381.9
- SL-202608
- 25.4
- -1500
- -1492.7
- 3
- 3.1
- 616.6
- 342
- SL-202609
- 25.4
- -1000
- -995.3
- 3
- 3.1
- 559.8
- 267.9
- SL-202610
- 25.4
- -800
- -796.2
- 3
- 3.2
- 630.9
- 250
- SL-202611
- 25.4
- -600
- -597.2
- 3
- 3.2
- 600
- 204.5
- SL-202612
- 25.4
- -500
- -496.9
- 3
- 3.3
- 232.8
- 122.46
- SL-202508
- 25.4
- -400
- -397.5
- 3
- 3.4
- 232.8
- 109.15
- SL-202509
- 25.4
- -350
- -348.3
- 3
- 3.4
- 232.8
- 102.09
- SL-202510
- 25.4
- -300
- -298.5
- 3
- 3.5
- 232.8
- 93.11
- SL-202511
- 25.4
- -250
- -248.7
- 3
- 3.6
- 232.8
- 83.31
- SL-202512
- 25.4
- -200
- -199.6
- 3
- 3.7
- 90.36
- 47.86
- SL-202513
- 25.4
- -175
- -174.6
- 3
- 3.8
- 89.74
- 44.46
- SL-202514
- 25.4
- -150
- -149.5
- 3
- 4
- 89.74
- 41.3
- SL-202515
- 25.4
- -125
- -123.7
- 3
- 4.2
- 90.36
- 37.45
- SL-202516
- 25.4
- -100
- -99.2
- 3
- 4.5
- 90.36
- 32.61
- SL-202201
- 25.4
- -50
- -53.3
- 5
- 8.4
- 25.82
- 12.08
- SL-022201
- 25.4
- 50
- 44.6
- 5
- 1.3
- 15.81
- 36.14
- SL-022509
- 25.4
- 100
- 97.5
- 4
- 2.5
- 33.34
- 89.67
- SL-022510
- 25.4
- 125
- 121.8
- 4
- 2.8
- 38.01
- 88.3
- SL-022511
- 25.4
- 150
- 146.3
- 4
- 3
- 41.78
- 88.3
- SL-022512
- 25.4
- 175
- 171.2
- 4
- 3.1
- 46.58
- 92.8
- SL-022513
- 25.4
- 200
- 197
- 3.5
- 2.8
- 48.31
- 88.72
- SL-022514
- 25.4
- 250
- 246.5
- 3.5
- 2.9
- 83.31
- 227
- SL-022515
- 25.4
- 300
- 296.3
- 3.5
- 3
- 93.11
- 228.25
- SL-022516
- 25.4
- 350
- 346
- 3.5
- 3.1
- 102.09
- 232.8
- SL-022517
- 25.4
- 400
- 395.8
- 3.5
- 3.1
- 110.1
- 232.8
- SL-022607
- 25.4
- 500
- 495.4
- 3.5
- 3.2
- 123.59
- 232.8
- SL-022608
- 25.4
- 600
- 595.3
- 3.5
- 3.2
- 204.5
- 600
- SL-022609
- 25.4
- 800
- 794.5
- 3.5
- 3.3
- 250
- 630.9
- SL-022610
- 25.4
- 1000
- 993.7
- 3.5
- 3.3
- 267.9
- 559.8
- SL-022611
- 25.4
- 1500
- 1492
- 3.5
- 3.4
- 339.05
- 600
- SL-022612
- 25.4
- 2000
- 1990.2
- 3.5
- 3.4
- 380.54
- 600
- SL-202613
- 50
- -2000
- -1986.9
- 3
- 3.3
- 600
- 381.9
- SL-202614
- 50
- -1500
- -1491.5
- 3
- 3.4
- 616.6
- 342
- SL-202615
- 50
- -1000
- -994.5
- 3
- 3.6
- 559.8
- 267.9
- SL-202616
- 50
- -800
- -795.6
- 3
- 3.7
- 630.9
- 250
- SL-202617
- 50
- -500
- -496.5
- 3
- 4.2
- 232.8
- 122.46
- SL-202517
- 50
- -400
- -397.2
- 3
- 4.5
- 232.8
- 109.15
- SL-202518
- 50
- -300
- -298.3
- 3
- 5
- 232.8
- 93.11
- SL-202519
- 50
- -200
- -199.5
- 3
- 6.3
- 89.74
- 47.42
- SL-202520
- 50
- -150
- -149.4
- 3
- 7.6
- 90.36
- 41.3
- SL-025501
- 50
- 100
- 87.6
- 10.3
- 2.8
- 34.43
- 92.8
- SL-025502
- 50
- 125
- 114.3
- 8
- 2.3
- 39.36
- 92.8
- SL-025503
- 50
- 150
- 139.6
- 7
- 2.4
- 43.25
- 92.8
- SL-025504
- 50
- 175
- 163.5
- 7
- 3.2
- 46.58
- 90.36
- SL-025505
- 50
- 200
- 188
- 6.5
- 3.2
- 49.77
- 90.78
- SL-025506
- 50
- 250
- 244.3
- 4.8
- 2.3
- 83.31
- 227
- SL-025507
- 50
- 300
- 293.9
- 4.8
- 2.7
- 93.11
- 228.25
- SL-025508
- 50
- 350
- 343.6
- 4.5
- 2.8
- 102.57
- 232.8
- SL-025509
- 50
- 400
- 393.1
- 4.5
- 3
- 110.1
- 232.8
- SL-025601
- 50
- 500
- 495
- 3.5
- 3.2
- 123.59
- 232.8
- SL-025602
- 50
- 600
- 594.8
- 3.5
- 3.2
- 204.5
- 600
- SL-025603
- 50
- 800
- 793.9
- 3.5
- 3.3
- 250
- 630.9
- SL-025604
- 50
- 1000
- 992.9
- 3.5
- 3.3
- 267.9
- 559.8
- SL-025605
- 50
- 1500
- 1490.7
- 3.5
- 3.4
- 328.1
- 559.8
- SL-025606
- 50
- 2000
- 1988.5
- 3.5
- 3.4
- 381.9
- 600
- For more details, please contact us.