Fresnel lens
E129015
A Fresnel lens is a compact, lightweight lens design composed of concentric rings that allows lighthouses and other optical systems to project powerful, focused beams of light over long distances.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Fresnel lens canonical | 20 |
| Fourth-order Fresnel lens | 3 |
| Fourth order Fresnel lens | 2 |
| first-order Fresnel lens | 2 |
| First-order Fresnel lens | 1 |
| fourth-order Fresnel lens | 1 |
| second-order Fresnel lens | 1 |
| third-order Fresnel lens | 1 |
Statements (73)
| Predicate | Object |
|---|---|
| instanceOf |
imaging system element
ⓘ
optical component ⓘ optical lens ⓘ |
| appliedIn |
automotive safety
ⓘ
aviation lighting ⓘ display technology ⓘ marine navigation ⓘ solar energy collection ⓘ |
| developedBy | Augustin-Jean Fresnel ⓘ |
| field |
optics
ⓘ
photonics ⓘ |
| hasAdvantage |
allows large aperture with less material
ⓘ
can be manufactured in large diameters ⓘ enables powerful lighthouse beams ⓘ reduces thickness compared to conventional lens ⓘ reduces weight compared to conventional lens ⓘ |
| hasDisadvantage |
chromatic aberration
ⓘ
increased scattering ⓘ lower image quality than high-quality conventional lenses ⓘ surface artifacts ⓘ |
| hasPart |
concentric annular zones
ⓘ
grooves ⓘ prismatic segments ⓘ |
| hasProperty |
can be diffractive
ⓘ
can be flat or slightly curved ⓘ can be hybrid refractive-diffractive ⓘ can be linear (cylindrical) ⓘ can be refractive ⓘ can be rotationally symmetric ⓘ compact ⓘ concentric rings ⓘ large aperture possible ⓘ lightweight ⓘ reduced material volume ⓘ reduced weight ⓘ segmented surface ⓘ short focal length possible ⓘ stepped profile ⓘ thin ⓘ |
| madeOf |
acrylic
ⓘ
glass ⓘ other optical plastics ⓘ polycarbonate ⓘ |
| namedAfter | Augustin-Jean Fresnel ⓘ |
| relatedTo |
conventional refractive lens
ⓘ
diffractive optical element ⓘ zone plate ⓘ |
| typicalShape |
circular
ⓘ
cylindrical ⓘ rectangular sheet ⓘ |
| usedFor |
collimating light
ⓘ
concentrating sunlight ⓘ focusing light ⓘ projecting beams over long distances ⓘ reducing lens thickness ⓘ reducing lens weight ⓘ |
| usedIn |
VR and AR displays
ⓘ
automotive lighting ⓘ handheld magnifiers ⓘ head-mounted displays ⓘ imaging systems ⓘ lighthouses ⓘ magnifying sheets ⓘ non-imaging optical concentrators ⓘ overhead projectors ⓘ projection televisions ⓘ searchlights ⓘ solar concentrators ⓘ solar cookers ⓘ solar thermal power systems ⓘ spotlights ⓘ stage lighting ⓘ traffic signals ⓘ |
Referenced by (31)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fourth-order Fresnel lens
subject surface form:
Augustin-Jean Fresnel
subject surface form:
Yaquina Head Lighthouse
this entity surface form:
first-order Fresnel lens
this entity surface form:
First-order Fresnel lens
this entity surface form:
second-order Fresnel lens
this entity surface form:
Fourth order Fresnel lens
this entity surface form:
Fourth-order Fresnel lens
this entity surface form:
Fourth-order Fresnel lens
this entity surface form:
Fourth order Fresnel lens
this entity surface form:
first-order Fresnel lens
this entity surface form:
third-order Fresnel lens
this entity surface form:
fourth-order Fresnel lens