2D Throw & Screen Scale Visualization
Interactive Optical Geometry
Projected Cone
Projector Unit
Screen Surface
Recommended Seating (1.2x)
Hardware Comparison Presets:
8.5 ft
$99.00
350 lm
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Price-to-Performance Engine
Aurzen E1R
Screen Diagonal Size
81.6inches
71.1" W × 40.0" H
Cost Per Diagonal Inch
$1.21/ in
Sub-$100 Roku TV Hybrid
Screen Brightness
14.2fL
Foot-Lamberts on 1.0 Screen
Integrated Smart OS
Roku TV
Saves $30-$40 dongle cost
Value & Deal Rating:
Record Low Deal Tier
Lighting Suitability:
Optimal for Dark Rooms
Optimal Seating Distance:
8.2 - 10.2 ft
Market Value Benchmark:
*Happrun cost/inch includes required $30 streaming stick accessory.
| Model | Price | Smart OS | Cost/Inch @ 80" | Est. Lumens |
|---|---|---|---|---|
| Aurzen E1R | $99 | Roku TV (Built-in) | $1.21 | 350 ANSI |
| RCA 720p Roku | $129 | Roku TV (Built-in) | $1.61 | 200 ANSI |
| Happrun H1 | $69 | None (Requires Stick) | $1.24* | 250 ANSI |
| Anker Capsule | $299 | Android TV | $3.73 | 200 ANSI |
Context & Optical Physics Grounding
Reporting by Kotaku highlights the Aurzen E1R at its record low price of under $100 ($99.00 MSRP deal tier). Traditional budget projectors in the $50-$100 range omit licensed smart operating systems, necessitating a $30-$50 external Amazon Fire TV Stick or Google TV dongle. By integrating licensed Roku TV directly into the firmware alongside a 1.25 throw ratio lens producing an 81.6" image at 8.5 feet, the E1R achieves an extraordinary $1.21 cost-per-diagonal-inch.
Optical Foot-Lambert Formula: Brightness (fL) = (ANSI Lumens × Screen Gain 1.0) / Screen Area (sq ft). For standard 16:9 projection, 14–16 fL matches commercial cinema projection standards under dark room conditions.