1. What is Resolution From Pixel Size?

The resolution calculated from pixel size determines how many line pairs per millimeter (lp/mm) can be resolved based on the physical size of individual pixels in a sensor or display.

2. How Does the Calculator Work?

The calculator uses the resolution formula:

Where:

• \( res \) — Resolution in lines per millimeter (lp/mm)
• \( pixel\_size \) — Size of one pixel in millimeters

Explanation: The resolution is simply the reciprocal of the pixel size, representing how many pixels fit into one millimeter.

3. Importance of Resolution Calculation

Details: Knowing the resolution helps in determining the level of detail a sensor or display can capture or reproduce, which is crucial in imaging applications, display technology, and optical system design.

4. Using the Calculator

Tips: Enter the pixel size in millimeters. The value must be greater than zero. The calculator will compute the corresponding resolution in lines per millimeter.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical pixel size for digital cameras?
A: Consumer cameras typically have pixel sizes between 1-5 microns (0.001-0.005 mm), while scientific cameras may have larger pixels (up to 20 microns or 0.02 mm).

Q2: How does this relate to megapixels?
A: Megapixels indicate total pixel count, while pixel size determines the light-gathering ability and resolution capability of each individual pixel.

Q3: What's the relationship between pixel size and resolution?
A: Smaller pixels generally enable higher resolution (more lp/mm) but may reduce light sensitivity and increase noise.

Q4: Does this calculation account for optical limitations?
A: No, this is the sensor's theoretical maximum resolution. The actual system resolution may be lower due to optical limitations.

Q5: How does this apply to displays?
A: For displays, this calculation gives the maximum resolvable detail, though perceived resolution also depends on viewing distance.