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United Scientific Double Convex Lenses, 50 mm Diameter, 250 mm Focal Length

By: United Scientific Item#: 584688
These mighty little curves of glass shed some light on learning the science behind optical principles. Also known as converging lens or positive lens, these Double Convex Glass Lenses from United Scientific are superior quality aids, each with two outwardly curved surfaces and a positive focal length of 250 millimeters (mm). Diameter of each lens is 50 millimeters (mm). The convex lens is used to solve the problem of farsightedness or Hypermetropia by bending the light ray, which shortens the focal length and makes the light ray focus on the retina in a proper way. It's also used in cameras for focusing and magnifying images. Use this pair for research studies or teaching demonstrations in geometric optics, physics, and other general optic lessons.

Web Price


List Price $2.49You Save 25%


  • Double convex lenses consist of 2 outwardly curved surfaces and a positive focal length, commonly known to correct farsightedness
  • Teachers and students can use these superior quality glasses lenses for learning/teaching optical principles, reflection and refraction, general physics and more
  • Complement these convex lenses with concave lenses (sold separately) for learning about opposing optic forces for the best geometric optics demonstrations

What's in the Box

  • 2 Convex Lenses


Item #:584688

Brand:United Scientific

Grade Level:Middle-High School

Selling UOM:Each

Ship Method:Parcel

Certifications:Not Applicable

Safety:No Choking Hazard

Allergens:Contains No Allergens

Invoice Description:LENS DBL CONVEX GLASS 50MM 250MM FL

Description:Double Convex

Focal Length:250 mm

Lens Material:Glass

Magnification:250 mm


Product Dimensions:50 mm

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