2Pcs Optical Lens Concave Convex Basic Physics Teaching Experiments Polished Edges Ideal Classroom Use

United Scientific LCV108 Glass Double Convex Lens, 100mm Diameter, 200mm Focal Length

Startnow 1PC Glass K9 Fiber Laser Focus Collimator Lens Dia.18 20 28 30 36 40mm Concave Convex 1064Nm For Raytools Cutting Welding Head Equipment

Double Concave Lens, 200mm Focal Length, 1.5" (38Mm) Diameter - Eisco

JIATONG 5PCS X Optical Glass Lens Without Edge Dameter 20mm Flat-Convex Lens, Focusing LED Convex Lens (Φ20mmh8.3F15)

Optical Glass Lens Set - 3 Dbl Convex, 3 Dbl Concave, 50mm Dia - 20, 30, 50cm

Double Concave Lens, 1000mm Focal Length, 3" (75Mm) Diameter - Eisco

Optical Len Set, Convex Len Concave Len Prism Len Convex Mirror Concave Mirror

Hemobllo Physical Optical Equipment Set - 1 Set Concave/Convex Lens Optical Bench And Attachment Set Complete Optical Teaching Equipment Physical

Uxcell 200mm 300mm Focal Length Double Convex And Concave Lens Set, Glass Optically Lens Classroom, Clear

Uxcell 200mm Focal Length Double Concave Lens, 2 Pack 50mm Diameter 5mm Height Glass Optically Lens, Clear

1PC/Set Fused Silica FS Single Concave Convex Lens Collimating Focusing Lens

Double Convex Lens, 150mm Focal Length, 3" (75Mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great For Physics Class

Concave & Convex Lens Optical Glass Objective Lens For DIY Achromatic Telescope

OPTICAL CONCAVE CONVEX LENS 6" DIA FL 45" LASER OPTICS BK7 GLASS BINA8-01

Lens Double-Convex Glass Lens, 75mm Diameter, 20cm Focal Length, Pack Of 10

Optical Glass Lens Set - 3 Dbl Convex, 3 Dbl Concave, 75mm Dia - 20, 30, 50cm FL

1PC/Set Fused Silica FS Single Concave Convex Lens Collimating Focusing Lens

Lens Double-Concave Glass Lens, 38mm Diameter, 15cm Focal Length. Sold In A Case

HUGE OPTICAL LENS CONVEX CONCAVE GLASS BK7 PRO LASER OPTICS AS PICTURED P2-A-72

OPTICAL CONVEX CONCAVE LENS VERY DEEP CONCAVE LASER OR MICROSCOPE OPTICS BN24-99