Best Plano convex Spherical Lens

Ajax Scientific - LI070-0020 Concave/Convex Mirror 75mm Diameter 200mm Focal Length

  • Reversible concave and convex spherical mirror for demonstrating optical principles and effects for students.
  • Outward curved surface forms an image of the reflected object that is slightly distorted and smaller than actual size.
  • Inward curved surface forms an image of the reflected object that is upside down when past the focal point and magnified and right-side up before the....
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Julbo Spacelab Snow Goggles, Red Frame - Spectron 3 Red Lens w/Blue Mirror

  • Design: A huge field of vision with large, rounded, spherical lens at an economical price. Goggle Size: X-Large.
  • Lens: All weather Spectron Category 3 Polycarbonate lens. 13% visible light transmission (VLT) & provides 100% ABC UV Protection.
  • Light Conditions: Sun to partly cloudy. Orange tint lens provides excellent light reception & sun protection.
  • Fog Free: Double lens construction with long lasting inner lens anti-fog coating & Air Flow venting in the frame.
  • Comfortable & Secure: Cosy, soft foam for protection & comfort. Helmet compatible, wide elastic strap with silicone grip.
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Monotonous Blind

  • The fan-shaped blind spot mirrors are paired with the side rearview mirror corners to make them more attractive than other shapes.
  • 360 Degree design: the mirror is designed with 360 degree rotation, which can be adjusted up and down, swing left and right to maximize your viewing angle.
  • All convex mirrors are equipped with miniature adjustable rotating mounting bracket for easy adjustment.
  • A wide range of usage: convex mirrors can give drivers a wider perspective by reducing blind spots, making it safer to drive at high speeds and change lanes, especially at night.
  • It can also be applied normally in rainy days and foggy days to maximize your perspective when the fog and haze are serious.
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Smith Optics I/O MAG S Snow Goggles (White, ChromaPop Photochromic Rose Flash)

  • VISION: Smith MAG interchangeable system, Includes bright light and low light ChromaPop performance lenses, Spherical carbonic-x lens, 5X anti-fog inner lens, TLT lens technology for crystal clear vision.
  • FIT: Women’s medium fit, Responsive Fit frame design, QuickFit strap adjustment system with clip buckle, 3-layer DriWix face foam, *Available in Asia fit.
  • INTEGRATION: Helmet compatible, Ultra-wide silicone backed strap.
  • Includes microfiber goggle bag with replacement lens sleeve.
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102MM F/2.8 EKTANAR C Slide PROJECTOR LENS

  • 1.Multi-layer coating technology, bringing 98% high light transmittance..
  • 2.Does not affect the phone pixels, keep the picture hd.The lens magnetic adsorption, easy to take.
  • 3.The fisheye lens has a super-angle of 180 degrees and has a strong visual effect..
  • 4.The front lens of the lens is short and parabolically convex toward the front of the lens, which is quite similar to the fish's eyes..
  • 5.Perfectly fits osmo action, it will not shake because of dimensional deviation, high precision and good effect.
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Smith Optics Skyline XL Adult Snowmobile Goggles - Oxide/Chromapop Photochromic Red Mirror/One Size

  • Vision: Smith Mag Interchangeable System, Includes Bright Light And Low Light Chromapop Performance Lenses, Spherical Carbonic-X Lens, 5x Anti-Fog Inner Lens, Tlt Lens Technology For Crystal Clear Vision.
  • Fit: Medium Fit, Responsive Fit Frame Design, Quickfit Strap Adjustment System With Clip Buckle, 3-Layer Driwix Face Foam.
  • Integration: Helmet Compatible, Ultra-Wide, Silicone Backed Strap, Articulating Outrigger Positioning System.
  • Includes Microfiber Goggle Bag With Replacement Lens Sleeve.
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Freela Ski Goggles Snowboard Snow Skiing Snowboarding Equipment Winter Snow Sport Glasses Goggles Anti-fog UV Protection Mirror Clear Goggles for Toddler Kids Girl Boy Youth Snowmobile Snowboard Gear

  • 【Anti-fog Spherical Wide Vision】 Freela kids ski goggles adopted high-tech spherical-design lens which is more ergonomic offers a better focusing effect, providing junior youth and toddler skiers and skaters a true and wider view and splendid fun of slope freely. With anti-fog coating in inner lens and a professional ventilation system can optimize the flowing air, which offer boys and girls skaters a crystal clear vision to enjoy snow sports and a beautiful winter scenery..
  • 【100% UV Protection】 With dual-lens of polycarbonate lens imported from Italy and REVO mirror coating in the outer lens, snowboard goggles provide better UV protection to protect eyes of children from strong reflected light in snow world. The snow skiing equipment can improve the contrast of skiing path and scenery, and improve visual resolution. Freela offers different options for different conditions. Higher VLT fits for dark condition while lower VLT for bright condition..
  • 【Triple-layer Sponge Comfort For Kids】 These skiing goggles are designed for kids with triple-layer sponge, which is soft and perfect fit your kids’ face. High-quality foam make it comfortable to wear and is anti-wind to keep kids’ eyes in warm when toddlers skiing or skateboarding in winter..
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Julbo Shadow Snow Goggles, Black/Army Frame - REACTIV 2-4 Polarized Brown Lens w/Blue Mirror

  • Design: A huge field of vision with large, rounded, spherical lens paired with the highest quality photochromic lens. Very light weight at only 135 grams. Goggle Size: Medium.
  • Lens: REACTIV High Mountain 2-4 - Photochromic, Polarized lens with Brown tint for best sun protection, eliminates glare & provides contrast. 100% ABC UV Protection..
  • Light Conditions: Bright, high mountain sun to overcast/snow. Automatically adjusts from medium to dark tint quickly regardless of air temperature.
  • Fog Free: Double lens construction with long lasting inner lens anti-fog coating & Air Flow venting in the frame.
  • Comfortable & Secure: Dual soft foam for protection & comfort. Helmet compatible, wide elastic strap with silicone grip.
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Freela Ski Goggles Snowboard Snow Skiing Snowboarding Equipment Winter Snow Sport Glasses Goggles Anti-fog UV Protection Mirror Clear Goggles for Toddler Kids Girl Boy Youth Snowmobile Snowboard Gear

  • 【Anti-fog Spherical Wide Vision】 Freela kids ski goggles adopted high-tech spherical-design lens which is more ergonomic offers a better focusing effect, providing junior youth and toddler skiers and skaters a true and wider view and splendid fun of slope freely. With anti-fog coating in inner lens and a professional ventilation system can optimize the flowing air, which offer boys and girls skaters a crystal clear vision to enjoy snow sports and a beautiful winter scenery..
  • 【100% UV Protection】 With dual-lens of polycarbonate lens imported from Italy, snowboard goggles provide better UV protection to protect eyes of children from strong reflected light in snow world. The snow skiing equipment can improve the contrast of skiing path and scenery, and improve visual resolution. Freela offers different options for different conditions. Higher VLT fits for dark condition while lower VLT for bright condition..
  • 【Triple-layer Sponge Comfort For Kids】 These skiing goggles are designed for kids with triple-layer sponge, which is soft and perfect fit your kids’ face. High-quality foam make it comfortable to wear and is anti-wind to keep kids’ eyes in warm when toddlers skiing or skateboarding in winter..
  • 【Soft & Safe Frame】 Frame of goggles is....
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Optical Glass Lens, 3' (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base - Eisco Labs

  • DOUBLE CONCAVE || Highly polished, double concave lens.
  • SPHERICAL || Lens measures 3" (75mm) in diameter and approximately 12mm thick.
  • 200MM FOCAL LENGTH || Diverging lens with a 200mm focal length.
  • OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with beveled, ground edges.
  • GREAT FOR PHYSICS CLASSROOMS or TOP SPINNING || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction. It's smooth, concave surface also makes this lens ideal for top spinning.
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