Elliptical Mirror
Elliptical mirroris still a flat mirror, but the shape is cut into an oval, and the outer circle and the mirror into a 45 ° angle. When the elliptical mirror is mounted in the optical path by 45 [deg.], The optical aperture of the lens is just circular.
Elliptical mirrorsare also divided into metal coated mirrors and dielectric coated mirrors. The wide-band dielectric film reflector has a high reflectivity, and the metal film reflector has a wide reflection band.
Ellipse mirrors are typically used at 45° where a circular cross section of a given size is asked for. Our stock range of elliptical mirrors are machined from standard sheets of enhanced aluminium giving 94% reflectivity for visible applications. Generally elliptical mirrors are used as secondary mirrors in Newton telescopes or mounting in a tube where maximum aperture is required such as in perescopes.
Our stock mirrors have a guarenteed flatness of 1λ over 25mm. Where greater precision is required we offer elliptical mirrors with flatness better than λ/10 as a custom option. We also stock a range of standard front surface mirrors sheets for use in UV/ NIR and IR applications these can be cut and edged into elliptical mirrors at short notice.
For more information on our stock elliptical flat mirrors, to place an order or to find out more about our custom capabilities please contact our technical sales team.
Material: |
Soda lime float glass |
Diameter (minor-axis): |
+0 / -0.25 mm |
Thickness: |
±0.15 |
Surface quality: |
<60-40 scratch/dig |
Flatness: |
1λ over 25mm dia. test area |
Parallelism: |
<3 arcmin |
Coating:
Enhanced aluminium/ visible use (MV1)
Ali/SiO₂ R.avg>94%@450-650nm, AOI=0°-45°
If you want to know more details of optical assembly manufacturing, please visit our website.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
Asphere Lenses | Aspheric Optical Lens The complex surface profile of an asphere can significantly reduce or even eliminate spherical aberrations comparing to sp... | |
Bandpass Filter | Band pass filter can separate a band of monochromatic light, the ideal transmittance of band-pass filter through the bandwidth is 100%, while the a... | |
Sapphire Lenses | Sapphire Lenses Sapphire is the best medium for spherical lenses that require a broad spectrum of light transmission and high optical clarity, e... | |
Achromatic Triplet Lenses | A triplet lens is a compound lens consisting of three single lenses. The triplet design is the simplest to give the required number of degrees of f... | |
Colored Glass Filter | Tinted colored glass light filtersis a performance of the color of the optical filter, which absorbs undesired through the band of the way, to prec... |
Похожие товары
Color Glass Filter | Продавец: TianCheng Optics CO.,Ltd | It's fabricated by special color glass material. Color Glass Filterare designed by their manufact... | |
Collimating Lens | Продавец: TianCheng Optics CO.,Ltd | TC Optics provides optical collimating lensare curved optical lenses that make parallel the light... | |
BK7 Window | Продавец: TianCheng Optics CO.,Ltd | At TC Optik, we are proud to offer high-quality BK7 windowthat are manufactured to the highest st... | |
Bandpass Filter | Продавец: TianCheng Optics CO.,Ltd | Optical bandpass filters transmit light only within a defined spectral band ranging from less tha... | |
Aspherical Lens Definition | Продавец: TianCheng Optics CO.,Ltd | What is aspherical camera lens Our aspheric lenses have surface profiles that are not portions o... |