Purchasing a high-end 3D Hologram Fan is only the first step. The true magic lies in the content. Without properly formatted video assets, even the most expensive 100cm fan will look like a standard flat display. In this deep-dive guide, we explore the science of Persistence of Vision (POV) and provide a technical walkthrough of the conversion process from MP4 to the industry-standard BIN format.
1. The Physics of 3D Hologram Displays
To understand why specific formatting is required, we must understand how the hardware works. 3D Hologram Fans consist of blades equipped with high-density RGB LED beads. As these blades rotate at high speeds (usually between 600 to 900 RPM), the human brain cannot perceive the individual blades. This is known as Persistence of Vision.
Because there is no solid screen, any pixel that is colored "Black" simply results in the LED bead turning off. Since the fan is spinning in open air, the "off" LEDs become invisible, leaving only the brightly colored pixels to "float" in the air. This creates the holographic illusion.
2. Content Creation: Pre-Production Best Practices
Before you even open a conversion tool, your video file must meet these parameters:
- Aspect Ratio: 1:1 (Square). Whether you are using a 42cm, 65cm, or 100cm fan, the software maps a square image onto a circular rotation.
- Resolution: For our Professional Series, 1024x1024 is the gold standard. For smaller fans, 720x720 is acceptable.
- Frame Rate: 25-30 FPS. High frame rates (60 FPS) are often unnecessary and can lead to stuttering in cheaper SD cards.
- Subject Centering: Keep your object in the center. Avoid "corner" elements as they will be cropped by the circular fan motion.
3. Step-by-Step: Converting MP4 to .BIN Format
While some modern fans allow direct MP4 playback via a mobile app, industrial-grade stability requires Binary (.BIN) files. This format pre-encodes the LED signals, reducing the processing load on the fan's chipset.
The Step-by-Step Workflow:
- Open the MS & Sons Encoder: Load the software provided with your hardware.
- Import your Video: Select your MP4, AVI, or MOV file (ensure the background is already black).
- Select Model Size: Choose your fan diameter (e.g., 65cm) to ensure the mapping is correct.
- Configure Bitrate: We recommend a bitrate of 2000-4000 kbps for optimal clarity.
- Export to SD Card: Save the resulting .BIN file into the root directory of your formatted MicroSD card.
4. Troubleshooting Common Visual Issues
If your display doesn't look perfect, consult these common fixes from our Support Hub:
Visible Background "Box"
This happens when your "black" is not pure black. Use a "Levels" or "Curves" filter in your video editor (like Adobe Premiere) to crush the blacks to absolute zero.
Flickering or Jittering
This usually indicates a slow SD card. We recommend using Class 10 or UHS-1 MicroSD cards to handle the high data read speeds required for 3D projection.
5. Marketing Strategy: Why 3D Content Matters
At Mangal Sen and Sons, we have seen businesses in Delhi and Mumbai double their footfall by using "Action Content." Instead of a static logo, use a 3D rotating model of your product. If you are a shoe brand, show the sneaker rotating 360 degrees. If you are a jewelry store, show the sparkle of a diamond catching the light.
Need custom content? Our design team can help. Contact our creative department for personalized 3D assets.