PATIKIL Concave Lens, 3 Sizes Focal Length Round Glass Magnifying Telescope Lens Trial Set Ground Edge for Lab Physics Class Optics Scientific Experiments, White, 3Pcs

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• Specification: Material: Glass
• Focal Length: 60mm/ 65mm/ 120mm
• Size: 30/1.2inch
• 40mm/1.6 inch
• 50/2inch
• Package Includes: Convex Lens x 3
• Advantage: The double convex shape of the lens provides a wider field of view, resulting in clearer and sharper images. The lens is accurately measured and has consistent curvature, ensuring consistent performance and results.
• Instruction: When installing the lenses, pay attention to the cleanliness of the lenses to avoid fingerprints, dust and other factors affecting the performance.
• Application: Widely used in a variety of optical devices. In optical instruments, they used to make magnifying glasses, telescopes, etc. to focus light and magnify the image, and in photography to help focus and improve the image quality, in addition, they are widely used in laser technology to focus the laser beam to improve the efficiency. They are also ideally for showing optics and the refraction of light in the physics classroom, helping to better understand how optics work.
• Note: Choose the appropriate focal length and size to purchase according to your need.In the process of use, avoid strong impacts and scratches on the lenses, so as not to affect their performance and life.

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