Armadillo – Optical Parameter Converter: Quick Guide

Overview

Armadillo – Optical Parameter Converter is an interactive tool for converting between key optical parameters: F-number (F#), Numerical Aperture (NA), and Full Angle. It helps engineers, designers, and technicians quickly evaluate and optimize lenses and optical systems.

What It Does

By entering focal length and aperture diameter—and optionally F#, NA, or Full Angle—the converter instantly calculates the remaining parameters using standard optical formulas. This makes it useful for lens design, system analysis, fiber optics, and education.

Why It’s Useful

• Improves design accuracy
• Optimizes optical efficiency
• Supports troubleshooting and validation
• Helps users understand parameter relationships

Inputs

• Focal Length (mm)
• Aperture Diameter (mm)
• (Optional) F-number (F#)
• (Optional) Numerical Aperture (NA)
• (Optional) Full Angle (°)

Outputs & Core Relationships

• F# = Focal Length / Aperture Diameter
• NA = 1 / (2 × F#)
• Full Angle = 2 × arcsin(NA)

How to Use

1. Enter focal length and aperture diameter.
2. Optionally enter F#, NA, or Full Angle to override auto-calculations.
3. The converter updates all related values instantly.
4. Review results or reset to start a new calculation.

Example

Inputs:
Focal length: 16 mm
Aperture diameter: 32.256 mm

Results:
F#: 0.496
NA: 1.0080
Full Angle: 180.00°

Best Practices

• Use accurate base measurements.
• Apply manual overrides carefully.
• Cross-check results with theory or measurements.
• Be cautious with extreme values.

Application Example

In a high-precision imaging project, Armadillo – Optical Parameter Converter was used to balance focal length, aperture, NA, and Full Angle, ensuring the final lens design met strict clarity and depth-of-field requirements.

Need More Help?

If you have questions or need assistance, our team is here to help.