1. What is Resolution?

Resolution (res) is a measure of the ability to distinguish between two adjacent elements in an image or pattern, calculated as the number of lines per unit distance (typically lines per millimeter).

2. How Does the Calculator Work?

The calculator uses the resolution formula:

Where:

• \( res \) — Resolution (lines/mm)
• \( lines \) — Number of lines (unitless)
• \( distance \) — Distance in millimeters

Explanation: The equation calculates how many lines can be distinguished per millimeter of distance.

3. Importance of Resolution Calculation

Details: Resolution is crucial in optics, imaging systems, and display technologies to quantify the level of detail that can be distinguished.

4. Using the Calculator

Tips: Enter the number of lines and the distance in millimeters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical resolution values?
A: Resolution values vary by application. Human eye resolution is about 5-10 lines/mm, while high-end cameras can resolve 50+ lines/mm.

Q2: How does resolution relate to pixel density?
A: In digital systems, resolution is often expressed as pixels per inch (PPI), which is conceptually similar to lines per millimeter.

Q3: What affects resolution in optical systems?
A: Factors include lens quality, sensor characteristics, and diffraction limits based on aperture size.

Q4: Can resolution be infinite?
A: No, all real systems have finite resolution limited by physical constraints like diffraction and noise.

Q5: How is resolution tested?
A: Using resolution test charts with known line patterns at specific distances.