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Diameter 42mm Focal length 45mm Acrylic Convex Lens PMMA High Magnifying Magnifier Aspherical 3D VR Lens

$2.63~~$2.63~~

5 sold

45% off

$Professional 50/100/300/600 Line Transmission Grating Diffraction Grating with for Shell Inner Size 0.91x1.38inches Dura$ $Professional 50/100/300/600 Line Transmission Grating Diffraction Grating with for Shell Inner Size 0.91x1.38inches Dura$

Professional 50/100/300/600 Line Transmission Grating Diffraction Grating with for Shell Inner Size 0.91x1.38inches Dura

$22.18~~$40.32~~

7 sold

32% off

$Multi in one grating for laser diffraction Interference Diffraction Sheet Laser lamp pattern Optical Experiment Instrument$ $Multi in one grating for laser diffraction Interference Diffraction Sheet Laser lamp pattern Optical Experiment Instrument$

Multi in one grating for laser diffraction Interference Diffraction Sheet Laser lamp pattern Optical Experiment Instrument

$6.79~~$9.99~~

5 sold

20% off

$Geometric Optics Experiment Set Optical Lens Kit Convex Concave Lens Light Refract Reflect Physics Teaching Kid Science Gift$ $Geometric Optics Experiment Set Optical Lens Kit Convex Concave Lens Light Refract Reflect Physics Teaching Kid Science Gift$

Geometric Optics Experiment Set Optical Lens Kit Convex Concave Lens Light Refract Reflect Physics Teaching Kid Science Gift

$54.17~~$68.13~~

3249 sold

1 Set 44mm LED Lens 60 90 120 Degree Optical Glass + 50mm Reflector Collimator + Fixed Bracket For 20W 30W 50W 100W COB LED Chip

$32.09~~$32.09~~

82 sold

35% off

$1pc Transmission Diffraction Grating Line Spectrophotometer 50/100/300/600 Lines Diffraction Grating Optical Teaching Experiment$ $1pc Transmission Diffraction Grating Line Spectrophotometer 50/100/300/600 Lines Diffraction Grating Optical Teaching Experiment$

1pc Transmission Diffraction Grating Line Spectrophotometer 50/100/300/600 Lines Diffraction Grating Optical Teaching Experiment

$16.27~~$25.03~~

4 sold

19% off

17mm x 9.7mm Optical PMMA Lens 5050 LED Reflector Bead Stripe Smooth Surface 20 30 45 60 Degrees for 5 x 5mm LED Chip Light Bead

$2.07~~$2.57~~

66 sold

59% off

$24 In 1 Multi-Image Laser Diffraction Grating Plate Interference Diffraction Laser Lamp Pattern Optical Experiment Instrument$ $24 In 1 Multi-Image Laser Diffraction Grating Plate Interference Diffraction Laser Lamp Pattern Optical Experiment Instrument$

24 In 1 Multi-Image Laser Diffraction Grating Plate Interference Diffraction Laser Lamp Pattern Optical Experiment Instrument

$55.95~~$138.51~~

9 sold

20mm x 12.8mm PMMA Lens Flat Smooth Stripe Bead Surface 15 to 60 Degree 5050 LED Lenses Reflector With 5x5mm LED Hole

$2.49~~$2.49~~

17 sold

40% off

LED Soft Light Shade Hood Downlight Spotlight Round Honeycomb Mesh Cover Black Anti-glare Anti-dazzling Aluminum 23 - 110 MM

$0.89~~$1.48~~

23 sold

23% off

LED lens 1w lens stage light lens spotlight cast light flashlight Diameter 20MM 5 degrees to 120 degrees optional

$5.03~~$6.53~~

36 sold

56% off

1pcs 15mm 18mm 20mm 28mm 32mm Flat Glass Lens for LED Light Flashlight Lamp

$5.28~~$12.00~~

6 sold

48% off

$Ultra Precision Nano Engraving PET Trasmission Diffraction Grating Teaching spectral decomposition Precision component Detect$ $Ultra Precision Nano Engraving PET Trasmission Diffraction Grating Teaching spectral decomposition Precision component Detect$

Ultra Precision Nano Engraving PET Trasmission Diffraction Grating Teaching spectral decomposition Precision component Detect

$9.87~~$18.98~~

12 sold

16% off

M9 Outer Diameter Laser Collimating Lens Group matchφ6aspheric Glass Lens Optical Focus Focal Length F10brass Material withMatte

$6.17~~$7.37~~

16 sold

18% off

Beam Expansion Lens 5mm diameter Biconcave Focusing Lens Dot Laser Light Source Focus 300-1100nm Wavelength PMMA Material

$32.47~~$39.78~~

7 sold

Double Eyelid Effect Glasses Fast avd Effective Double Eyelid for Uneven and Mono-Eyelids

$2.96~~$2.96~~

3 sold

26% off

2pcs First Reflecting Surface Reflector Square Optical Front Surface Mirror DIY Scanner Projector Mirror Accessories 50x50x3mm

$2.14~~$2.89~~

9 sold

23% off

$Laser Diffraction Grating Multi in One Optical DOE Transmission Holographic Complex Structure Interference Handmade Board$ $Laser Diffraction Grating Multi in One Optical DOE Transmission Holographic Complex Structure Interference Handmade Board$

Laser Diffraction Grating Multi in One Optical DOE Transmission Holographic Complex Structure Interference Handmade Board

$8.47~~$11.00~~

8 sold

23% off

23mm Acrylic LED Plano Convex Lens PMMA Flashlight Plano-convex Lenses Frosted Stripe Smooth Diffuser or Bead Surface

$1.46~~$1.90~~

4 sold

23% off

10 to 50 52 MM PMMA Plano Convex Acrylic Condenser Lens for Zoom Flashlight Torch Bike Head Lamp Spotlight DIY

$1.65~~$2.15~~

17 sold

38% off

20PCS 5mm Factory Defective Optical Glass Mini Right Angle Prism Optics Experiment Instrument Rainbow Research Triangular Prisma

$1.79~~$2.89~~

29 sold

17% off

1 Piece 45 x 35 x 17 MM LED Lens Electric Bicycle Light Motorcycle Lens Acrylic Spotlight Lens

$2.40~~$2.90~~

23 sold

25% off

$Diffraction Grating 50/100/300/600 line 2mm Transmission Grating Spectrophotometer Optical teaching experiment$ $Diffraction Grating 50/100/300/600 line 2mm Transmission Grating Spectrophotometer Optical teaching experiment$

Diffraction Grating 50/100/300/600 line 2mm Transmission Grating Spectrophotometer Optical teaching experiment

$5.12~~$6.85~~

48 sold

11% off

Geometric Optics Experiment Set Optical Lens Kit Convex Concave Lens Light Refract Reflect Physics Teaching Kid Science Gift

$8.53~~$9.62~~

235 sold

29% off

$50x50mm Glass Holographic Trasmission Diffraction Grating University Spectral Decomposition Wavelength 20-2000nm 500 Lines$ $50x50mm Glass Holographic Trasmission Diffraction Grating University Spectral Decomposition Wavelength 20-2000nm 500 Lines$

50x50mm Glass Holographic Trasmission Diffraction Grating University Spectral Decomposition Wavelength 20-2000nm 500 Lines

$76.72~~$108.05~~

24 sold

3% off

10Pcs Dia 25mm BiConvex Clear Lens Convex Glass Lens For Google Cardboard Box 3D VR Glasses Magnifying Lens Focal Length 45mm

$2.91~~$3.01~~

3 sold

16% off

2pcs 8 10 12 13 14 15 16 18 19 20 22 23 24 25 27 28 29 30 32 35 40 42 45 MM Transparent Round Flat Glass Lens for LED Flashlight

$2.47~~$2.97~~

99 sold

48% off

High Quality Optical Prism Trial Lens Replacing Lenses with Metal Rims DIA 38mm JSQ-Prism

$61.24~~$119.15~~

9 sold

57% off

Torch Frosted Glass Plate Diameter 35-110mm Round Flat Glass LED Flashlight Lampshade

$5.31~~$12.36~~

22 sold

43% off

$Holographic Diffraction Grating Lens Transmission 50Lines 100 300 500 600 Transmission Teaching Equipment Teaching Demonstration$ $Holographic Diffraction Grating Lens Transmission 50Lines 100 300 500 600 Transmission Teaching Equipment Teaching Demonstration$

Holographic Diffraction Grating Lens Transmission 50Lines 100 300 500 600 Transmission Teaching Equipment Teaching Demonstration

$17.09~~$29.99~~

2 sold

18% off

2pcs 10 15 18 20 23 25 28 30 - 52 MM PMMA Plano Convex Acrylic Condenser Magnifying Lens for LED Zoom Flashlight Bike Head Lamp

$2.14~~$2.64~~

91 sold

15% off

$Optical Experiment Kit Optical Lenses Convex Concave Lens Light Refract Reflect Physics Optics Teaching Science Gift for Kids$ $Optical Experiment Kit Optical Lenses Convex Concave Lens Light Refract Reflect Physics Optics Teaching Science Gift for Kids$

Optical Experiment Kit Optical Lenses Convex Concave Lens Light Refract Reflect Physics Optics Teaching Science Gift for Kids

$59.61~~$70.17~~

96 sold

40% off

$Transmission Diffraction Grating with Frame 50/100/300/600 Line 50x50mm Fitting for Spectrograph 4 Sizes$ $Transmission Diffraction Grating with Frame 50/100/300/600 Line 50x50mm Fitting for Spectrograph 4 Sizes$

Transmission Diffraction Grating with Frame 50/100/300/600 Line 50x50mm Fitting for Spectrograph 4 Sizes

$3.07~~$5.11~~

13 sold

16% off

Optical Focusing Lens, Focal Length,8mm Diameter, F50 Laser Installation Accessories, PMMA Material, 300-1000nm, 5 Pieces, Profe

$5.71~~$6.80~~

5 sold

68% off

$50lines/mm-600lines/mm Transmission Diffraction Grating Line Spectrophotometer 2mm Thickness Optical Teaching Experiment$ $50lines/mm-600lines/mm Transmission Diffraction Grating Line Spectrophotometer 2mm Thickness Optical Teaching Experiment$