Achieving crisp backlit symbols on light-transmitting buttons requires precision laser technology. Standard laser etching often carbonizes the substrate, reducing light transmission by over 50%. Discover how our specialized process delivers flawless results while preserving 90%+ light throughput.
1. The Industry Challenge: Why Most Laser Marking Fails
❌ Conventional YAG lasers:
- Simultaneously remove paint and scorch transparent plastic
- Create light-blocking carbon layers
- Result in:
✓ Uneven backlighting (30-40% transmission)
✓ Blurred symbols
✓ Reduced button lifespan
Case Study:
Automotive audio buttons lost 55% light output after standard laser processing.
2. Our Proprietary Solution
⚙️ Specialized Equipment:
- Beam-shaping optics for 0.01mm depth control
- Dynamic power adjustment (15W-30W)
- 50kHz pulse frequency to prevent heat buildup
📊 Performance Comparison:
| Parameter | Standard | Our Method |
|---|---|---|
| Light Transmission | ≤40% | ≥90% |
| Edge Definition | ±0.1mm | ±0.02mm |
| Heat Affected Zone | Visible | None |
3. Light-Through Button Anatomy
Optical Pathway Design:
- Light Guide Structure:
- LED coupling interface (side-mounted)
- 45° primary reflector
- Dual-function secondary reflector (touch surface + light redirection)
- Laser Process Criticals:
- Removes 5μm paint layer only
- Maintains pristine light channels
4. Applications & Success Stories
🔘 Consumer Electronics: Phone keypads
🚗 Automotive: Dashboard controls
🏭 Industrial: Instrument panels
🏠 Smart Home: Illuminated switches
Client Result:
Global automotive supplier achieved 99.3% yield (from 72%)
Welcome to exchange more ideas with us at www.rilong-mold.com.
