Penta Prism
Pentagonal prism is the beam Angle (90 °), one of the steering gear.It has two purposes: one is that no matter how much the first incident Angle on the side is the emergent light incident light steering Angle (90 °);The other is that, unlike a rectangular prism, the resulting image has neither rotation nor specular reflection.Pentaprism is commonly used in camera viewfinders, image observation systems or measuring instruments.
Description Of Penta Prism
Characteristics of pentaprismis a 90 ° Angle of the light became a vertical incidence, and then after the 45 ° Angle of two surface reflection, from the Angle of 90 ° exit, on the other side of the incident light and emergent light is equal to 90 ° Angle, such application pentagonal prism can turn axis around 90 °. Recently, the use of the characteristics of a pentagonal optical prism measurement [1] the planarity of the Pacific Ocean, namely the pentagonal prism rotates around the horizontal axis for emergent light in the vertical plane sweep out a plane, and vice around the vertical axis rotation, can be measured in horizontal plane, when using laser as light source, because the laser range far, you can sweep out a big plane, this for housing construction, large engineering construction of planar measurement obviously is simple and convenient and of high precision, so the pentagonalcustom optical prismneeds more and more.
Pentagonal prisms cannot achieve internal total reflection based on the critical-angle principle. Therefore, the two reflective surfaces of this prism are generally coated with aluminum film and black paint, and the incident and outgoing surfaces are coated with MgF2 single anti-reflective coating.
Specifications OfPenta Prism
|
Material: |
N-BK7 |
|
Diameter Tolerance: |
±0.1mm |
|
Angular Tolerance: |
≤2'' |
|
Flatness: |
λ/4 @ 632.8nm |
|
Surface Quality: |
40/20 |
|
Clear Aperture: |
>85% |
|
Bevel: |
<0.25mm X 45° |
|
Coating: |
S1&S2: Single layer MgF2coating |
|
S3&S4: Aluminized and painted black |
|
Dimension(mm) |
|
7x5 |
|
7x6 |
|
10x10 |
|
15x15 |
|
20x20 |
|
30x30 |
As one of optical component manufacturers,Ecoptik is committed to high precision optical components processing.
Ecoptik,as a penta prism supplier,provides penta tech coated products,such as roof pentaprism,half penta prism,pentaprism camera,etc.
在线联系供应商
Other supplier products
 |
CCD camera for color sorter | CCDcolor sorter The CCD camera uses a color CCD image acquisition system to obtain comprehensive information of RGB colors. Make the color sorter ... |
 |
Plano Convex Cylindrical Lens | A plano-convex cylindrical lens is used to condense light in one axis. A positive plano cylindrical lens is able to create a line image from a poin... |
 |
Optical Prism | Optical Prism, a transparent object surrounded by two planes that intersect but are not parallel to each other, is used to split light or disperse ... |
 |
Plano Convex Cylindrical Lens | A plano convex cylindrical lensis used to condense light in one axis. A positive plano convex cylindrical lensis able to create a line image from a... |
 |
Bandpass Filter | BRD Opticalwas founded in 2004, and is located in the city of Changchun-the optic base of China with a beautiful view and profound optical culture.... |
Same products
 |
Optical Brightener OB-1 (OBA 393) | 卖方: Jinan Ogilvy Chemical Co., Ltd | Chemical Name: 2-[(Ethylsulfanyl)methyl]phenyl methylcarbamateC.I.: 393CAS: 1533-45-5Molucular Fo... |
 |
Optical Dove Prisms | 卖方: Changchun Long Ze Precision Optics Co., Ltd | A Optical Dove prismis a truncated version of a right-angle prism, used as a reflective prism inv... |
 |
Cutomizable CLZ Silicon Domes | 卖方: Changchun Long Ze Precision Optics Co., Ltd | The world of technology is constantly evolving, pushing the boundaries of what is possible. In th... |
 |
Custom MgF2 Coated Achromatic Lenses | 卖方: Changchun Long Ze Precision Optics Co., Ltd | Our MgF2 coating can be less than 1.75% reflectance @ 400-700nm, AOI=0°. And we can produce h... |
 |
Fused Silica Precision Lenses for Solid State Laser applications | 卖方: Changchun Long Ze Precision Optics Co., Ltd | A biconvex lens is a positive lens characterized by a longer focal length in the middle and short... |
