Ellipsoidal Mirror
Ellipsoidal Mirrors are precision reflective optical components with an ellipsoidal surface profile designed to reimage light from one focal point onto a second, conjugate focal point, without introducing spherical aberration for that specific conjugate pair. Chenyu Optics manufactures ellipsoidal mirrors in optical glass, fused silica and aluminum substrates, with aluminum, silver, gold or protected dielectric reflective coatings, for illumination, spectroscopy and laser collection systems.
Ellipsoidal Mirror Overview
Ellipsoidal Mirrors are precision reflective optical components with an ellipsoidal surface profile designed to reimage light from one focal point onto a second, conjugate focal point, without introducing spherical aberration for that specific conjugate pair.
Because an ellipse has two geometric foci, all light rays leaving one focus and reflecting off the ellipsoidal surface converge exactly at the second focus. Ellipsoidal mirrors are widely used in illumination systems, light collection assemblies, spectroscopy equipment and laser pump-cavity designs where efficient point-to-point light transfer is required.
Chenyu Optics supports custom ellipsoidal mirror manufacturing according to customer drawings, including custom dimensions, focal distances, substrate material and coating design for prototype and repeat production.
Key Advantages of Ellipsoidal Mirror
Illumination & Light Collection Systems
Ellipsoidal mirrors are widely used for point-to-point light transfer in illumination systems, light collection assemblies and spectroscopy equipment.
Typical Specifications of Ellipsoidal Mirror
| Substrate Options | Optical Glass, Fused Silica, Aluminum |
|---|---|
| Optical Function | Point-to-point imaging / Light collection |
| Coating Options | Aluminum, Silver, Gold, Protected Dielectric |
| Dimensions | Customized |
| Focal Distances | Customized (two conjugate foci) |
| Configuration | On-axis or off-axis |
| Surface Accuracy | λ/4 – λ/10 @ 633 nm |
| Surface Quality | 20-10 / 40-20 scratch-dig |
Reflectance Curve (Typical, by Coating)
Why Choose Chenyu Optics for Ellipsoidal Mirror
Chenyu Optics focuses on drawing-based precision mirror manufacturing for illumination, spectroscopy and laser collection systems. We support prototype verification, small-batch production and repeat manufacturing for non-standard ellipsoidal mirrors.
Manufacturing Capability for Ellipsoidal Mirror
Precision Figuring & Polishing
Precise ellipsoidal surface figuring and polishing to achieve accurate conjugate focus performance and low wavefront error.
Reflective Coating
Aluminum, silver, gold and protected dielectric coating options for illumination, spectroscopy and laser applications.
Inspection & Packaging
Surface figure inspection, reflectance testing, optical performance checking and protective packaging before shipment.
Custom Manufacturing Options for Ellipsoidal Mirror
Dimensions & Focal Distances
Custom dimensions and focal distances for both conjugate foci can be manufactured according to customer drawings.
Substrate & Optical Quality
Substrate material, surface accuracy and surface quality can be selected according to optical performance requirements.
Coating & Wavelength Design
Aluminum, silver, gold or protected dielectric coatings can be specified according to wavelength range and application requirements.
Mirror Shape Comparison
| Ellipsoidal Mirror | Parabolic Mirror | Spherical Mirror | Flat Mirror | |
|---|---|---|---|---|
| Focusing Behavior | Reimages one focal point onto a second conjugate focal point | Focuses parallel rays to a single point (or vice versa) | Approximate focus; spherical aberration at large apertures | No focusing power, redirects the beam only |
| Aberration Behavior | Aberration-free for its specific conjugate pair | Aberration-free for on-axis parallel rays | Spherical aberration present off-axis or at large aperture | No aberration; flat wavefront reflection |
| Typical Use Case | Point-to-point light transfer, illumination, pump cavities | Collimating or focusing a parallel beam | General-purpose, low-cost focusing/imaging | Beam steering, folding optical paths |
| Typical Applications | Illumination systems, spectroscopy, laser collection | Laser focusing, telescopes, spectrometers | Imaging systems, general optical assemblies | Beam folding, periscopes, alignment |
Applications of Ellipsoidal Mirror
Illumination Systems
Efficient point-to-point light transfer for illumination design.
Light Collection Assemblies
High-efficiency collection of light from a source into a target.
Spectroscopy Equipment
Aberration-free light transfer for spectroscopic instruments.
Laser Pump Cavities
Efficient pump light coupling for solid-state laser cavities.
Optical Instruments
Precision light transfer for instrument optics.
Scientific Research Instruments
Precision mirrors for research and laboratory optical setups.
Ellipsoidal Mirror FAQ
What is the function of an ellipsoidal mirror?
An ellipsoidal mirror reimages light from one focal point onto a second, conjugate focal point without introducing aberration for that pair.
How is an ellipsoidal mirror different from a parabolic mirror?
An ellipsoidal mirror has two conjugate focal points for point-to-point imaging, while a parabolic mirror focuses parallel rays to a single point.
What coating options are available for ellipsoidal mirrors?
Common coating options include aluminum, silver, gold, and protected dielectric coatings, selected according to wavelength and reflectance requirements.
Can ellipsoidal mirrors be customized?
Yes. Chenyu Optics provides customized dimensions, focal distances, substrate materials, and coating options.
What information should I provide for a quotation?
Please provide dimensions, focal distances for both conjugate foci, substrate material, coating requirement, quantity and drawing if available.
Where can I learn more about mirror design?
Additional information on mirror design can be found from Edmund Optics.
Related Products for Ellipsoidal Mirror
Need Custom Ellipsoidal Mirrors?
Send us your drawing, dimensions, focal distances, substrate and coating requirements. Chenyu Optics will review the optical and mechanical specifications and provide a suitable ellipsoidal mirror manufacturing suggestion.