Hyperion Optics
ENGLISH
Menu
What are you looking for?

Elliptical Mirror

  • Introduction

Elliptical Mirror

Elliptical mirror is 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 mirrors are 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.


Elliptical 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 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°


Related Content
  • Micro Sphere Lenses

    Micro Sphere Lenses

    February 17, 2017With the rapid growing market of consumer electronics and mobile phones, miniature cameras performance is becoming more challenging compared to years ago. However, manufacturing cost, packaging, imagi...view
  • Dichroic Filter

    Dichroic Filter

    February 17, 2017Hyperion Optics’s complete range of cost effective dichroic filter range offers superior transmission, reflection and absorption characteristics. Key Features:Sharp transition from reflection to transmis...view
  • Corner Cube Retroreflectors

    Corner Cube Retroreflectors

    February 17, 2017Corner cube is total reflecting prism formed by 3 perpendicular surfaces, where the incident light angle does not influence the final emerging light angle but reflected by 180°, it offers excellent p...view

Corporate Info

Contact

  • TEL:+86-25-83307137
  • FAX:+86-25-86626312
  • EMAILrfq@hypoptics.com
  • ADDRESS:DanYang Industrial Zone Danjie Road #100, Danyang,China
    BaoXiang Road#6, Nanjing,China