Front vs Inside Projection
Projecting from outside onto glass means your own beam reflects back and the street reflects too. Projecting from inside, angled at the glass, can work for interior-facing marks but still fights exterior light.
Beat the Reflection
Reduce glare by aiming off-perpendicular and by dimming interior lights behind the projector. A high-contrast, bold logo reads better than a delicate one on glass.
Daylight Is the Enemy
A daytime storefront needs very high lumens to overcome sun and sky. If the mark must read by day, plan 6,000+ lumens and an IP65 sealed unit.
| Time | Challenge | Approach |
|---|---|---|
| Day | Sun + sky reflection | 6,000+ lm, bold mark |
| Dusk | Mixed light | 3,000–6,000 lm |
| Night | Easy | 1,500–3,000 lm |
Surface Prep
Clean glass removes smears that scatter light. Avoid projecting through tinted or mirrored glass — it kills the image.
Positioning the Fixture
Mount low and angled up at the glass from outside, or high inside aimed down, whichever avoids your own reflection in the capture.
A Quick Reality Check
If the storefront gets direct sun, a gobo may never beat it by day. Consider a recessed or shaded window, or accept night-only branding.
