Reviews Double convex Lens

Double Convex Lens, 50mm Focal Length, 1.5' (38mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs

  • DOUBLE CONVEX || Highly polished, double convex lens.
  • SPHERICAL || Lens measures 1.5" (38mm) in diameter.
  • 50MM FOCAL LENGTH || Converging lens with a 50mm focal length.
  • OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges.
  • GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction.
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Hemobllo Optical 3D Lens for Magnifier - 20 Pcs 42mm Diameter Double Convex Lenses 68mm Focal Lengths Biconvex Lens Magnifying Glass Lens Optical Plastic PMMA Lens

  • 3D Magnifying Lens: Our 3D lens has a large viewing angle, which is suitable for reading newspapers, books, magazines, maps, science, jewelry, inspection, rocks, handicrafts and so on..
  • Magnifier Lens: This magnifying glass lens can help you read grocery store labels, restaurant menus, prescription bottles, and other things printed with fonts that are too small to read..
  • Double Convex Lens: It is easy to store and can be put in a desk or purse. Please note that the two sides of this lens protrude to different degrees, with one side protruding a little more and the other side protruding a little less..
  • Premium Material: Made of high-quality optical grade PMMA acrylic material, with high transparency and durability. The magnification is 4.7 times. The light transmittance is over 93%..
  • Great Gift: This double convex lens can be a nice gift for your grandparents who are presbyopic or have failing vision..
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Verivue Mirrors Universal 12 Inch Interior Clip On Panoramic Curved Convex Rearview Mirror – Blue Tint – Clip On – Wide Angle – For Use in Car, SUV, Truck

  • Convex Wide Angle View: This rearview mirror is designed with a convex, curved lens to expand viewing range, while enhancing the driver’s view of blind-spots and encouraging safer driving..
  • Eliminate Distortion: High quality glass is manufactured to eliminate distortion, glare and double reflections. This glass also includes lens dispersion treatment to prevent shattering if broken..
  • Fast & Simple Installation: This clip-on rearview mirror is designed for quick and easy installation. Note that the car mirror is fragile. During and after installation, do not press too hard on the mirror..
  • Widely Compatible: At 12″ wide and 3.03″ tall, this is compatible with all cars, trucks and SUVs. Please refer to our Fit Guide in the description for more details on compatibility..
  • 100% Money Back Guarantee: We stand behind the quality and utility of this mirror. If you aren’t completely satisfied with it, for any reason at all, simply send it back to us for a full refund – no hassles, no delays and no questions asked..
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Monotonous Blind

  • What you get: 4 pieces of auto sector rear blind spot mirrors for you in 2 pairs, you can use 1 pair and take the other pair as a gift for family or friends.
  • The mirror is made of waterproof, rust proof and no hazing glass.
  • Easy installation: there are two parts in total, base and lens.
  • First, tear the double sided adhesive tape on the back of the lens corresponding to the base, and paste it to the base, then tear the double sided adhesive tape of the base and paste it to the rearview mirror position you want.
  • Warm reminder: please clean the rearview mirror when sticking the base, which is beneficial to improve the stickiness of the product.
  • Size details: fan lens radius is 1.97 inch/ 50 mm, base height is 0.59 inch/ 15 mm, lens thickness is 0.08 inch/ 2 mm, a reasonable design can better reduce the blind area.
  • 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 wi....
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Ajax Scientific-LI152-0050 Polished Glass Double-Convex (Bi-Convex) Lens, Spherical, 50 mm Diameter, 50 mm Focal Length

  • Double-convex (bi-convex) lens for demonstrating optical principles and effects for students.
  • Two outwardly curved surfaces converge light rays to a point.
  • Made of polished glass with ground edges.
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4 Pieces Fan-Shaped Automobile Rear Blind Spot Mirror, 360 Degree Rotating Design, Automobile Side Mirror Wide Angle Mirror Safety Convex Rearview Mirror for Car Truck Van (Natural Mirror Color)

  • What you get: 4 pieces of auto sector rear blind spot mirrors for you in 2 pairs, you can use 1 pair and take the other pair as a gift for family or friends.
  • The mirror is made of waterproof, rust proof and no hazing glass.
  • Easy installation: there are two parts in total, base and lens.
  • First, tear the double sided adhesive tape on the back of the lens corresponding to the base, and paste it to the base, then tear the double sided adhesive tape of the base and paste it to the rearview mirror position you want.
  • Warm reminder: please clean the rearview mirror when sticking the base, which is beneficial to improve the stickiness of the product.
  • Size details: fan lens radius is 1.97 inch/ 50 mm, base height is 0.59 inch/ 15 mm, lens thickness is 0.08 inch/ 2 mm, a reasonable design can better reduce the blind area.
  • 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 wi....
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KUVRD Universal Lens Cap 2.0 - Fits 99% DSLR Lenses Element Proof Lifetime Coverage Magnum 2-Pack

  • NEW & REFINED - The Universal Lens Cap just got a face lift.
  • Two styles, Magnum and Micro, and the new convex top deliver stretch and fit for all shapes and sizes.
  • Color code the white X with a marker to distinguish your lenses when capped.
  • With a tight, waterproof seal around your lens, The ULC 2.0 prevents water, mud, and the finest dust and sand from scratching & mucking up your lens.
  • The ULC works as both a front & rear lens cap, and you can even double up for max security.
  • FITS 99% OF LENSES - MAGNUM and MICRO size options provide even better coverage than the previous model.
  • MAGNUM size easily fits 72mm - 122mm, DSLR lenses, mirrorless camera lenses, cine-lenses, fisheye lenses and super telephoto lenses.
  • SHOCK ABSORBENT - The ULC 2.0 absorbs most blunt-force trauma that could occur to both the front and exterior sides of the lens when dropped.
  • It can even stretch over traditional lens caps for impact protection.
  • Works with lens hoods, ND filters, and camera flashes.
  • LIFETIME WARRANTY - This lens cap is guaranteed to perform under the toughest conditions nature might throw at you.
  • Any issues, and KUVRD will replace it for free, forever.
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KUVRD Universal Lens Cap 2.0 - Fits 99% DSLR Lenses, Element Proof, Lifetime Coverage, Micro, 2-Pack

  • NEW & REFINED - The Universal Lens Cap just got a face lift.
  • Two styles, Magnum and Micro, and the new convex top deliver stretch and fit for all shapes and sizes.
  • Color code the white X with a marker to distinguish your lenses when capped.
  • With a tight, waterproof seal around your lens, The ULC 2.0 prevents water, mud, and the finest dust and sand from scratching and mucking up your lens.
  • The ULC works as both a front and rear lens cap, and you can even double up for max security.
  • FITS 99% OF LENSES - New MAGNUM and MICRO size options provide even better coverage than the previous model.
  • MICRO size easily fits 54mm - 76mm, Micro 4/3, vintage lenses, smaller rangefinder lenses, SLR, and most DSLR and medium format lenses.
  • SHOCK ABSORBENT - The ULC 2.0 absorbs most blunt-force trauma that could occur to both the front and exterior sides of the lens when dropped.
  • It can even stretch over traditional lens caps for impact protection.
  • Works with lens hoods, ND filters, and camera flashes.
  • LIFETIME WARRANTY - This lens cap is guaranteed to perform under the toughest conditions nature might throw at you.
  • Any issues, and KUVRD will replace it for free, forever.
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KUVRD Universal Lens Cap 2.0 - Fits 99% DSLR Lenses, Element Proof, Lifetime Coverage, Magnum, Single Lens Cap

  • NEW & REFINED - The Universal Lens Cap just got a face lift.
  • Two styles, Magnum and Micro, and the new convex top deliver stretch and fit for all shapes and sizes.
  • Color code the white X with a marker to distinguish your lenses when capped.
  • With a tight, waterproof seal around your lens, The ULC 2.0 prevents water, mud, and the finest dust and sand from scratching and mucking up your lens.
  • The ULC works as both a front and rear lens cap, and you can even double up for max security.
  • FITS 99% OF LENSES - MAGNUM and MICRO size options provide even better coverage than the previous model.
  • MAGNUM size easily fits 72mm - 122mm, DSLR lenses, mirrorless camera lenses, cine-lenses, fisheye lenses and super telephoto lenses.
  • SHOCK ABSORBENT - The ULC 2.0 absorbs most blunt-force trauma that could occur to both the front and exterior sides of the lens when dropped.
  • It can even stretch over traditional lens caps for impact protection.
  • Works with lens hoods, ND filters, and camera flashes.
  • LIFETIME WARRANTY - This lens cap is guaranteed to perform under the toughest conditions nature might throw at you.
  • Any issues, and KUVRD will replace it for free, forever.
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Antique Desk Magnifying Glass Desktop Vintage Style Engraved' DOLLOND London' Magnifier Reading Magnifying Glass for Reading Book Traditional Brass Magnifying Glass by MAI

  • MAGNIFYING GLASS :- A Magnifying Glass Is A Convex Lens That Is Used To Produce A Magnified Image Of An Object. A Magnifying Glass Can Be Used To Focus Light, Such As To Concentrate The Sun's Radiation To Create A Hot Spot At The Focus For Fire Starting..
  • FUNCTIONAL :- Portable Design, Convenient To Carry. Fully Functional Piece That Also Makes A Great Decorative Accent. Adjustable Very Beautiful Desk Top Magnifier. This Magnifying Glass Are Extendable..
  • SIZE :- 112 Mm X 65 Mm, 4.5 X 2.5 Inches, Lens Size 4"( 100 Mm )Total Height Upto 3 Inches ( Approx. ) Weight: 0.592 Gm.
  • USAGE :- Office Table Decorative And Map Reader, Checking Jewelry Etc. - Vintage Design Is Unique In Its Own And Heavy Weight Item Gives Your Place An Elegant Feel. It Comes With Good Quality..
  • MAGNIFYING WORK :- A Magnifying Glass Is Actually The Simplest Form Of A Basic Microscope. It Consists Of A Single Convex Lens That Magnifies An Object When The Glass Is Held Up To It. ... When They Pass Through A Magnifying Glass, The Convex Lens Bends The Parallel Rays So That They Converge And Create A Virtual Image On Your Eyes' Retinas..
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NZQXJXZ Large Magnifying Glass with Light 5.08'' Lens Handheld Magnifying Glass for Reading 3X 6X Lighted Magnifier with 4 LED Lights for Seniors, Inspection, Exploring, Close Work

  • ...a large field of view. Magnifying glass with light is ideal for reading newspapers, documents, small brochures, coins, prints, stamps, jewelry, as well as crafts, needlework, plants, insects, etc..
  • 【Multifunctional Magnifying Glass】Our handheld magnifying glass consists of the main lens 3x and the small built-in convex lens 6x, which can be easily used by people with poor eyesight. Provides the same level of sharpness while zooming in 3x without distorting. 0.98in small convex lens can magnify any detail. Note: convex lens's image is carbe upright or inverted - object distance ≤ 3cm/1.2in is upright, otherwise the image/letter is inverted..
  • 【4 Mighty Illuminated LED 】This reading magnifier is equipped with 4 energy-saving LED lights, low energy consumption, and stable power without flickering. LED light illuminates evenly and brightly, providing healthy and comfortable lighting even in the dark, allowing people to read comfortably in the dark for a long time..
  • 【Comfortable & Ergonomic Handle】The handle of the large magnifying glass is ergonomically designed, both children and the elderly can hold it comfortably for a long time. The lighted magnifying glass needs 4AAA batteries (not included), turning on the LED light only needs to push the....
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Elitco Lighting Cast Brass Flood Light W2.75In D5.25In H8In Antique Brass Mr11/ Mr16 Dual Socket

  • Rectangle frame is made of die-cast brass with an antique-brass finish.
  • Suitable for wet locations. Well sealed from water, with double O-ring design and silicon plug at the bottom where the leads exit the fixture..
  • Equipped with dual sockets- MR16 socket and MR11 socket.
  • very durable material, cast brass, heavy solid metal.
  • Die-cast brass housing and integrated glare guard with high rigidity, transparent convex glass lens..
  • Eight-inch spike and three-feet of wire included.
  • Frosted glass lens magnifies the power of the recommended 20-watt G4/GU10 halogen lamp (light bulb is not provided).
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Biconvex Lens Set, Pop-Tech Glass Lens Bi-Convex 34mm Diameter 45mm Focal Length Lens for DIY Google Cardboard VR

  • High Quality Plastic Biconvex Lenses for better 3D experience..
  • Great to use for DIY Google Cardboard VR Project telescope..
  • Package includes 2 piece of double-convex biconvex lens.
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