1. What is Throw Distance?

Throw distance is the distance between the projector lens and the screen. For Panasonic projectors, this is calculated by multiplying the screen width by the projector's throw ratio.

2. How Does the Calculator Work?

The calculator uses the throw distance formula:

Where:

• \( Screen\ Width \) — Width of the projection screen in feet
• \( Throw\ Ratio \) — Projector's throw ratio (dimensionless)

Explanation: The throw ratio is a key specification of projectors that determines how far the projector needs to be from the screen for a given image size.

3. Importance of Throw Distance

Details: Proper throw distance is crucial for optimal image quality and size. It affects installation requirements and placement flexibility.

4. Using the Calculator

Tips: Enter screen width in feet and the projector's throw ratio (found in the projector's specifications). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Where do I find my projector's throw ratio?
A: The throw ratio is typically listed in the projector's specifications or manual. For Panasonic projectors, it's often between 1.4 and 2.0 for standard models.

Q2: Can I use this for ultra-short throw projectors?
A: This calculator works best for standard throw projectors. Ultra-short throw projectors may require different calculations.

Q3: Should I measure screen width or height?
A: Always use the screen width (horizontal measurement) for throw distance calculations.

Q4: What if my projector has zoom capability?
A: Projectors with zoom will have a range of throw ratios (e.g., 1.4-2.0). You can calculate the minimum and maximum throw distances using this range.

Q5: How precise does the placement need to be?
A: For optimal focus and image quality, placement should be within ±10% of the calculated throw distance.