🔹What is a Bi-Convex Lens?
A bi-convex lens, also known as a double convex optical lens, is a type of precision glass optic that features two outward-curved surfaces.
This optical focusing lens bends light rays toward a common focal point, delivering excellent convergence and clarity.
🔹Technical Specifications
| Parameter | Specification |
|---|---|
| Material | JGS2 (UV-grade fused silica) |
| Diameter | 80 mm |
| Effective Focal Length (EFL) | 100 mm |
| Optical Type | Bi-Convex / Double Convex Lens |
| Refractive Index (nd) | 1.4585 |
| Surface Quality | 40-20 Scratch-Dig |
| Wavelength Range | 200–2200 nm |
| Coating Options | Uncoated / AR coating available |
| Dimensional Tolerance | ±0.1 mm diameter / ±1% focal length |
| Thermal Resistance | Up to 800 °C (JGS2 material) |
🔹Pictures of Optical Grade Bi-Convex Optical Lens
Detailed Video of Bi-convex Lens
🔹Production Factory ofVY Optoelectronics Co.,Ltd.
🔹What Makes This Convex Lens Unique?
- Superior Light Transmission: JGS2 fused silica provides high transparency from UV to NIR ranges.
- Accurate Focusing Capability: Dual convex curvature ensures smooth beam convergence with minimal spherical aberration.
- Stable and Durable: Excellent resistance to temperature shifts and laser energy.
- Customizable Design: Size, curvature, and coatings can be customized for specific optical assemblies.
- High Surface Precision: Fine polishing guarantees consistent optical performance for demanding setups.
🔹Where Are Double Convex Lenses Used?
- Laser Beam Systems – focusing and collimation tasks
- Cameras & Imaging Modules – optical focusing and magnification
- Optical Instruments – telescopes, projectors, and microscopes
- Research & Development Labs – experimental setups and light manipulation
- Medical and Analytical Devices – UV, VIS, and IR optical applications
🔹Why Choose Our Precision Optical Components?
- Produced with high-accuracy CNC polishing and interferometric testing
- Strict optical inspection for focal length, centering, and surface flatness
- Custom manufacturing for both prototype and volume production
- AR coating service to improve transmittance and reduce reflection
- Fast response & professional technical support for global customers
🔹 People Also Ask
Q1: What is the main function of a bi-convex optical lens?
It converges parallel light rays to a single focal point, enabling clear focusing and image formation in optical assemblies.
Q2: How does a double convex lens differ from a plano-convex lens?
A double convex lens has two curved surfaces, offering stronger focusing power and lower optical aberration in symmetrical light paths.
Q3: Can fused silica convex lenses be used for UV applications?
Yes. JGS2 fused silica features excellent UV transparency down to 200 nm, making it ideal for UV imaging and spectroscopy.
