K9 double convex lens
◆ Materials: K9 The essence of annealing
◆ Focal length: ±2%@587.6nm
◆ Diameter Tolerance: +0.0/-0.20
◆ Center Thickness: ±0.1
◆ Center deviation: 3′
◆ Diaphragm: 1~5
◆ Irregularity: 0.2~0.5
◆ Clearing: IV stand
◆ Coating: MgF2 antireflection film
◆ Aperture: ＞90%ø
f'=Focal length fb=Back focal length Tc=Thickness of center Te=Thickness of edge
Model | Φ | R | f'(10.6um) | fb | Tc | Te | Weight(g) |
KST-201 | 6.0 | 19.114 | 19.0 | 18.1 | 3.0 | 2.5 | 1 |
KST-215 | 10.0 | 14.815 | 15.0 | 13.7 | 4.2 | 2.5 | 1 |
KST-216 | 10.0 | 30.330 | 30.0 | 28.7 | 3.9 | 3.0 | 1 |
KST-202 | 12.7 | 25.388 | 25.4 | 23.7 | 5.0 | 3.4 | 2 |
KST-203 | 12.7 | 36.688 | 38.1 | 36.7 | 4.0 | 3.0 | 2 |
KST-217 | 20.0 | 29.990 | 30.0 | 28.0 | 5.9 | 2.5 | 4 |
KST-218 | 20.0 | 40.501 | 40.0 | 37.9 | 5.0 | 2.5 | 3 |
KST-219 | 20.0 | 61.207 | 60.0 | 59.0 | 4.7 | 3.0 | 3 |
KST-220 | 20.0 | 76.764 | 75.0 | 73.7 | 4.4 | 3.0 | 3 |
KST-204 | 25.4 | 51.467 | 50.8 | 49.1 | 6.0 | 2.8 | 6 |
KST-205 | 25.4 | 102.501 | 100.0 | 98.5 | 5.0 | 3.4 | 6 |
KST-206 | 25.4 | 154.183 | 150.0 | 148.6 | 5.0 | 4.0 | 6 |
KST-207 | 25.4 | 180.023 | 175.0 | 172.7 | 5.0 | 4.1 | 6 |
KST-208 | 38.1 | 75 | 72.9 | 8.0 | 3.2 | 14 | |
KST-221 | 30.0 | 60.840 | 60.0 | 57.6 | 7.0 | 3.3 | 7 |
KST-222 | 30.0 | 123.175 | 120.0 | 118.7 | 5.0 | 3.2 | 7 |
KST-223 | 30.0 | 185.191 | 180.0 | 178.5 | 5.0 | 3.8 | 8 |
KST-224 | 30.0 | 257.544 | 250.0 | 248.0 | 5.0 | 4.1 | 9 |
KST-225 | 30.0 | 309.224 | 300.0 | 298.1 | 5.0 | 4.3 | 9 |
KST-226 | 40.0 | 101.994 | 100.0 | 97.0 | 8.0 | 4.0 | 20 |
KST-227 | 40.0 | 154.012 | 150.0 | 148.5 | 6.0 | 4.0 | 16 |
KST-228 | 40.0 | 257.441 | 250.0 | 247.9 | 5.6 | 4.0 | 16 |
KST-212 | 50.8 | 153.673 | 150.0 | 148.1 | 8.0 | 3.8 | 30 |
KST-213 | 50.8 | 257.373 | 250.0 | 248.8 | 6.0 | 3.5 | 25 |
KST-214 | 50.8 | 412.413 | 400.0 | 398.2 | 6.0 | 4.4 | 28 |
