عضویت 
ورود اعضا
راهنمای خرید
corner tubes0 pages
Corner Cubes
Corner Cube Retro-Reflectors have three mutually perpendicular surfaces and a
hypotenuse face. It operates on the principle of total internal reflection(TIR). A
beam entering the effective aperture is reflected by the three roof surfaces and
emerges from the entrance/exit surface parallel to itself. This property is
independent of orientation of the retro-reflector, within acceptance angle limitations.
For applications in which either the acceptance angle for TIR is exceeded, or the
reflecting surfaces can not be kept sufficiently clean for TIR, a metal or dielectric
coating can be applied to the reflecting surfaces.
Attribute | Specification |
Diameter(mm) | S2.5mm |
Tolerance (mm) | ±0.05 |
Angle tolerance | 3 arc seconds |
Surface Quality | 40.20 |
Flatness (per 25mm@633nm) | A/4@any 25.4mm area |
Bevel (face width x 45°) | <0.25mm |
Coating | Uncoated, AR, HR. etc. |
Penta Prisms
Penta prism can deviate an incident beam without inverting or reversing to 90
degree. The deviation angle of 90 degree is independent of any rotation of the prism
about an axis parallel to the line of intersection of the two reflecting faces. It is
commonly used in Plumb Level, Surveying, Alignment, Range finding and Optical
Tooling.
The reflecting surfaces of this Prism must be coated with a metallic or dielectric
coating. The standard Penta Prism reflecting surfaces are coated with aluminum or
enhanced aluminum.
Attribute
Length (mm)
Tolerance (mm)
Angle tolerance
Surface Quality
Flatness (per 25mm@633r
Bevel (face width x 45°)
Specification
>2mm
±0.05
1 minute
40/20
W2@any 21
<0.25mm
"
