Plano-Concave Lens
ATOptik specializes in manufacturing high-precision plano-concave lenses, particularly those made from visible-light glass (e.g., BK7, fused silica) with customizable specifications. These lenses are engineered to meet demanding optical requirements in scientific, industrial, and medical applications. Below is a detailed overview of their features and capabilities, supported by industry-standard technical insights. The plano-concave lens consists of one flat surface and one concave surface, with a negative focal length. It is designed to diverge parallel light rays, making them appear to originate from a virtual focal point. This lens is primarily used for beam expansion, divergence control, and optical system correction. FAQs of Plano Concave Lens Q What are ATOptik's processing capabilities? A Surface accuracy: Up to λ/10 (tested via interferometry) for laser-grade applications Tolerances: Diameter: ±0.01 mm Center thickness: ±0.02 mm Focal length: ±0.5% Edge treatment: Blackened or chamfered edges to minimize stray light Q What coatings can be achieved? A Anti-reflective (AR) coatings: Reflectivity <0.2% for visible wavelengths (e.g., 532 nm, 632.8 nm) High laser-induced damage threshold (LIDT) coatings: Ideal for high-power laser systems (e.g., 1064 nm) Custom coatings (e.g., beam splitters, filters) available. Q Can ATOPTIK manufacture double convex lenses from customer drawings? A Yes. ATOPTIK can review customer drawings or optical prescriptions covering material, diameter, radii, center thickness, focal length, surface quality, centration, coating and quantity. Final feasibility depends on the complete lens design.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [Normal] | Optical glass |
| Material [High Precision] | Optical glass |
| Material [Mfg. Limit] | Optical glass |
| Design Index [Normal] | 1.5168 |
| Design Index [High Precision] | 1.5168 |
| Design Index [Mfg. Limit] | 1.5168 |
| Diameter Tolerance [Normal] | +0/-0.1mm |
| Diameter Tolerance [High Precision] | +0/-0.05mm |
| Diameter Tolerance [Mfg. Limit] | +0/-0.01mm |
| Thickness Tolerance [Normal] | +/-0.1mm |
| Thickness Tolerance [High Precision] | +/-0.05mm |
| Thickness Tolerance [Mfg. Limit] | +/-0.01mm |
| Focal Length Tolerance [Normal] | +/-2% |
| Focal Length Tolerance [High Precision] | +/-1% |
| Focal Length Tolerance [Mfg. Limit] | +/-0.5% |
| Centeration [Normal] | 3 arc min |
| Centeration [High Precision] | 1 arc min |
| Centeration [Mfg. Limit] | 10 arc sec |
| Surface Quality [Normal] | 60-40 |
| Surface Quality [High Precision] | 40-20 |
| Surface Quality [Mfg. Limit] | 10-5 |
| Surface Figure [High Precision] | 2 lambda |
| Surface Figure [Mfg. Limit] | 1 lambda |
| Surface Irregularity [Normal] | 1/4 lambda |
| Surface Irregularity [High Precision] | 1/10 lambda |
| Clear Aperture [Normal] | >80% |
| Clear Aperture [High Precision] | >90% |
| Clear Aperture [Mfg. Limit] | 100% |
| Bevel [Normal] | +/-0.2*45 degree |
| Bevel [High Precision] | +/-0.1*45 degree |
| Bevel [Mfg. Limit] | +/-0.05*45degree |
Applications
Datasheet
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