| SLB-15B-30N 15.0 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-20N 20.0 mm Dia. x -19.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-30N 20.0 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-50N 25.0 mm Dia. x -49.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-80N 25.0 mm Dia. x -79.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-200N 25.4 mm Dia. x -199.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-60N 50.8 mm Dia. x -59.5 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-300N 50.8 mm Dia. x -299.5 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLSQ-25.4B-25N 25.4 mm Dia. x -24.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | Fused Silica | Circular |
| SLSQ-25.4B-150N 25.4 mm Dia. x -149.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | Fused Silica | Circular |
| SLSQ-30B-35N 30.0 mm Dia. x -34.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | Fused Silica | Circular |
| SLSQ-40B-70N 40.0 mm Dia. x -69.7 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | Fused Silica | Circular |
| SLSQ-50B-100N 50.0 mm Dia. x -99.5 mm FL; Double-Concave Lens Uncoated | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | Fused Silica | Circular |
| SLB-10B-25NM 10.0 mm Dia. x -24.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-40NM 10.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-20NM 20.0 mm Dia. x -19.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-40NM 20.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-25NM 25.0 mm Dia. x -24.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-40NM 25.4 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-80NM 25.4 mm Dia. x -79.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-20NIR1 15.0 mm Dia. x -19.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-40NIR1 20.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-50NIR1 20.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-35NIR1 25.0 mm Dia. x -34.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-40NIR1 25.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-150NIR1 25.4 mm Dia. x -149.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-200NIR1 25.4 mm Dia. x -199.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-30B-30NM 30.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-30B-100NM 30.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-100NM 50.8 mm Dia. x -99.5 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-25NIR1 10.0 mm Dia. x -24.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-40NIR1 10.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-30NIR1 15.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-20B-30NIR1 20.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-50NIR1 25.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-80NIR1 25.0 mm Dia. x -79.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-50NIR1 25.4 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-30B-50NIR1 30.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50B-100NM 50.0 mm Dia. x -99.5 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-150NM 50.8 mm Dia. x -149.5 mm FL; Coated; Double-Concave Lens 400-700nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-15NIR1 10.0 mm Dia. x -14.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-30NIR1 25.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-30B-40NIR1 30.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50B-70NIR1 50.0 mm Dia. x -69.5 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-60NIR1 50.8 mm Dia. x -59.5 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-50NIR2 25.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-60NIR2 25.0 mm Dia. x -59.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-70NIR2 25.0 mm Dia. x -69.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-200NIR1 50.8 mm Dia. x -199.5 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-20NIR2 15.0 mm Dia. x -19.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-40NIR2 15.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-40NIR2 25.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-30NIR2 10.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-10B-50NIR2 10.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-25NIR2 25.0 mm Dia. x -24.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-25NIR2 25.4 mm Dia. x -24.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-50NIR2 25.4 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-100NIR1 50.8 mm Dia. x -99.5 mm FL; Coated; Double-Concave Lens 633-1064nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-15NIR2 15.0 mm Dia. x -14.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-15B-30NIR2 15.0 mm Dia. x -29.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-35NIR2 25.0 mm Dia. x -34.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25B-100NIR2 25.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-40NIR2 25.4 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-25.4B-60NIR2 25.4 mm Dia. x -59.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-30B-50NIR2 30.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50B-70NIR2 50.0 mm Dia. x -69.5 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| 114-0104E 12.7 mm Dia. x -12.7 mm FL; Uncoated; Double-Concave Lens | Optics | Lens | Spherical Lens (Concave-Concave) | EKSMA Optics | N-BK7 | Circular |
| LD7671-E3 25.4 mm Dia. ZnSe Double-Concave Lens; EFL=-25.4mm 7-12µm | Optics | Lens | Spherical Lens (Concave-Concave) | Thorlabs | ZnSe | Circular |
| LF4348 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-300mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | UVFS | Circular |
| LF1822 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-100mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1097-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-200mm 350-700nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1988-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-500mm 350-700nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1822-C 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-100mm 1050-1700nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF7134-F 12.7 mm Dia. ZnSe Negative Meniscus Lens; EFL=-20mm 8-12µm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | ZnSe | Circular |
| LE4173 25.4 mm Dia. UVFS Positive Meniscus Lens; EFL=100mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | UVFS | Circular |
| LE4412 50.8 mm Dia. UVFS Positive Meniscus Lens; EFL=100mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | UVFS | Circular |
| LE4125 50.8 mm Dia. UVFS Positive Meniscus Lens; EFL=150mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | UVFS | Circular |
| LE4560 50.8 mm Dia. UVFS Positive Meniscus Lens; EFL=200mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | UVFS | Circular |
| LE5838 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=20mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | CaF2 | Circular |
| LE5243 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=50mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | CaF2 | Circular |
| LE5714 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=1000mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | CaF2 | Circular |
| LE5243-E 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=50mm 2-5µm | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | CaF2 | Circular |
| LE1234-B 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=100mm 650-1050nm | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | N-BK7 | Circular |
| LE1104-A 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=150mm 350-700nm | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | N-BK7 | Circular |
| LE1202 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=200mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | N-BK7 | Circular |
| LE1418 50.8 mm Dia. N-BK7 Positive Meniscus Lens; EFL=150mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | Thorlabs | N-BK7 | Circular |
| 87-966 50 mm Dia. Germanium Positive Meniscus Lens; EFL=100mm BBAR 3-5µm | Optics | Lens | Spherical Lens (Convex-Concave) | Edmund Optics | Germanium | Circular |
| LM01-25-300 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=300mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | CeNing Optics | N-BK7 | Circular |
| LM01-25-500 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=500mm Uncoated | Optics | Lens | Spherical Lens (Convex-Concave) | CeNing Optics | N-BK7 | Circular |
| SLB-40B-100NIR2 40.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| SLB-50.8B-100NIR2 50.8 mm Dia. x -99.5 mm FL; Coated; Double-Concave Lens 750-1550nm | Optics | Lens | Spherical Lens (Concave-Concave) | OptoSigma | N-BK7 | Circular |
| LF4370-UV 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-150mm UV 245-400nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | UVFS | Circular |
| LF4986-UV 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-1000mm UV 245-400nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | UVFS | Circular |
| LF5469 25.4 mm Dia. CaF2 Negative Meniscus Lens; EFL=-40mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | CaF2 | Circular |
| LF5394 25.4 mm Dia. CaF2 Negative Meniscus Lens; EFL=-1000mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | CaF2 | Circular |
| LF5175-E 25.4 mm Dia. CaF2 Negative Meniscus Lens; EFL=-150mm 2-5µm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | CaF2 | Circular |
| LF1097 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-200mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1544 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-400mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1141 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-1000mm Uncoated | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |
| LF1097-B 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-200mm 650-1050nm | Optics | Lens | Spherical Lens (Concave-Convex) | Thorlabs | N-BK7 | Circular |