Fresnel Spotlights
| Colortran 8" Fresnel |
Strand 6 " Fresnel |
EC 6" Fresnel |
Century 6" Fresnel | 3" Fresnel (Inky) |
 |
 |
 |
 |
 |
| BVW 2Kw | BTR 1Kw | BTN 750w | BTL 500w | ETC 150w |
Fresnel Spotlights
| Colortran 8" Fresnel |
Strand 6 " Fresnel |
EC 6" Fresnel |
Century 6" Fresnel | 3" Fresnel (Inky) |
|
|
|
|
|
| BVW 2Kw | BTR 1Kw | BTN 750w | BTL 500w | ETC 150w |
The Development of the Fresnel Spotlight
Sphereical Reflector
Plano-Convex (PC) Spotlight
Side section view of a plano-convex spotlight
Fresnel Lenses
 |
 |
Boston Light
Boston Harbor, Massachusetts
Derived from Plano-Convex Lens
Side View
Front View
Lens Advantages
Thinner Lens Means:
Less weight
Cheaper to make
Resists heat better
Soft diffused spot light
Shorter Focal Length Means:
Smaller light fixture
Spot/Flood Capability
Spot =
Lamp/reflector moves away from lens
Flood =
Lamp/reflector moves towards lens
Accessories
Barndoor |
Top Hat |
Gel Frame Holder |
Fresnel Sizes |
 |
 |
| Duluth Lighthouses | Apostle Island Lighthouse |
