Immersive Interactive Classroom Projector Ultra Short Throw 4K Resolution
Immersive Interactive Classroom Projector - Ultra Short Throw 4K Resolution Key Features Ultra Short Throw projection (0.21:1 ratio) True 4K resolution (3840×2160) via pixel shifting technology High 4200 lumens brightness for clear visibility Advanced laser light source with 20,000+ hour lifespan Built-in rim blending function for seamless large-screen displays Eye protection technology with diffuse light source and reduced blue light Technical Specifications Display
Display Technology
DLP 0.47" dmd
Brightness
4200lm
Projection Ratio
0.21:1
Model Number
SJ-42KL
Aspect Ratio
Native:16:10 Compatible: 4:3/16:9
Brand Name
Yeoan
Product Description
Immersive Interactive Classroom Projector - Ultra Short Throw 4K Resolution
Key Features
- Ultra Short Throw projection (0.21:1 ratio)
- True 4K resolution (3840×2160) via pixel shifting technology
- High 4200 lumens brightness for clear visibility
- Advanced laser light source with 20,000+ hour lifespan
- Built-in rim blending function for seamless large-screen displays
- Eye protection technology with diffuse light source and reduced blue light
Technical Specifications
| Display Technology | DLP 0.47" dmd |
|---|---|
| Brightness | 4200lm |
| Contrast Ratio | 1100:1 |
| Aspect Ratio | Native 16:10 (Compatible with 4:3/16:9) |
| Keystone Correction | Manual vertical and horizontal (8-point correction) |
| Sound Output | 8W × 2 speakers |
| Dimensions | 380 × 342.5 × 150mm (with support) |
| Weight | Approximately 9 kg |
Advanced Features
- Intelligent teaching system covering four main scenarios: whiteboard, textbook, courseware, and review
- Built-in Android 8.0 platform with 3GB RAM + 32GB storage
- Supports wireless screen transmission and Bluetooth connectivity
- Includes motion compensation and timed shutdown features
- Multiple installation options: table/ceiling, front/rear projection
Application Scenarios
This versatile projector is ideal for:
- Interactive classrooms and educational environments
- Professional meeting rooms and mobile offices
- Home theater setups
- Large venue presentations and events
Included Accessories
- User guide
- Warranty card
- Power cord
- Remote control with AAA batteries (×2)
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