BEXCO
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$29.99
PATIKIL 6 Pack Biconcave Lens, 4cm Dia. -10cm Focal Length Optical Lenses Glass Lens for Office Science Experiment Lab Equipment Laser Application Imaging System, Clear
★★★★★
$29.99
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3 availableSize: 4cm Dia. -10cm Focal Length
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1
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About this item
- Specification:Color: Clear;Material: Glass;Focal Length: -10 cm / -3.94 inch;Outer Diameter: 4cm / 1.57 inch;Thickness: 5mm / 0.2 inch;Packing List: 6 x Biconcave Lens
- Suitable for laser beam expansion, optical instrument correction, and precision targeting systems, these Biconcave Lenses are essential tools for laboratories, research facilities, and optical projects. The biconcave design effectively divergence light beams, making it suitable for reducing image size, correcting distortion in imaging systems, or creating specific lighting effects. Ensures reliable performance in scientific, industrial, or photographic applications.
- Advantage:Crafted from optical-grade glass with clarity and environmental durability. The double-concave design provides precise beam divergence and negative focal length, effectively spreading light for wider coverage or compensating for other optical elements. The glass material offers superior light transmission with minimal scatter and higher resistance to scratching. Features polished surfaces and fine-ground edges.
- Instruction:Integrate the lens into optical assemblies where light divergence is required. Adjust the distance and alignment relative to other optical components (like convex lenses ) to achieve the desired beam spread or correction effect. The standard round shape facilitates easy mounting in holders or fixtures.
- NOTE: Handle with care to avoid chipping; clean with a lens-specific soft cloth to maintain optical integrity. Store in a protective case when not in use.
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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