PATIKIL Convex Lens, 50-75 100-100mm Focal Length 30/50mm (1.18/1.97") Diameter Round Glass Magnifying Telescope Lens Trial Set Ground Edge for Lab Physics Class Optics, 4 Pcs

Convex Lenses are 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. In the field of lighting, they can be used in flashlights or stage lighting to focus light to achieve the desired lighting effect. They are also ideally for showing optics and the refraction of light in the physics classroom, helping to better understand how optics work.SpecificationMaterial: GlassFocal Length: 50 -75 100 -100 mmSize: 30x3mm/1.18x0.12inch, 50x7mm/1.97x0.28inchPackage Includes: Convex Lens x 4AdvantageMade of quality glass, a simple but good optical resistance and durability material that ensures the longevity of the lenses.Professional equipment production and polishing, to avoid hurting during use, but also to achieve a clear lens, to improve the quality of the light effect.InstructionWhen installing the lenses, you should pay attention to the cleanliness of the lenses to avoid fingerprints, dust and other factors affecting the optical performance.NOTEChoose 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.

• Material: Glass; Focal Length: 50 -75 100 -100 mm; Size: 30x3mm/1.18x0.12inch, 50x7mm/1.97x0.28inch; Package Includes: Convex Lens x 4
• Advantage: Made of quality glass, a simple but good optical resistance and durability material that ensures the longevity of the lenses. Professional equipment production and polishing, to avoid hurting during use, but also to achieve a clear lens, to improve the quality of the light effect.
• 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.
• Instruction: When installing the lenses, you should pay attention to the cleanliness of the lenses to avoid fingerprints, dust and other factors affecting the optical performance.
• 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.