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Penta Prism(Pentagonal Prims) is a five-sided prism containing two reflecting surfaces at 45deg to each other, and two refracting faces perpendicular to the entering and emerging beams. The deviation angle of 90deg is thus independent of the orientation of the prism, making it especially important in applications in which the ...
  • Material: BK7, FS, UVFS, IRFS, CaF2, F2, N-SF11, ZnSe, Ge, Other
  • Dimension (A): custom mm
  • Dimension (B): custom mm
  • Mounting: Unmounted, Mounted
Data Sheet
Gurley Penta Prisms
Gurley Precision Instruments
In addition to our Optographics capabilities, Gurley offers a wide variety of high quality optical materials and optical components, at prices that are second to none.GPI has the ability to supply standard, precision and custom designed components that may be fabricated from fused silica, crystal quartz, optical crystals, acrylics ...
  • Material: BK7, FS
  • Dimension (A): -- mm
  • Dimension (B): -- mm
  • Mounting: Unmounted
Optica Beam Splitter Penta Prism
Optics India
By adding a wedge and with partial reflective coating on first reflective surface, Penta Prism can be used as Beam splitter. We supply Beam splitter Penta Prism with standard Transmission/reflection (T/R) ratio of 20/80, 50/50. Other T/R ratio is available upon request. 
  • Material: BK7, FS, UVFS, Other
  • Dimension (A): custom mm
  • Dimension (B): custom mm
  • Mounting: Mounted
Optica Five –Side Prism
Optics India
Penta Prism is a Five –Side prism, It has two important properties ,First the image is neither inverted nor reverse while deviated by 90 degree. Secondly, It is a constant deflection device ;i.e all the transmitted rays are deviated by the same exact 90 degree. Slight movement of the prism does not effect the true right angle.  ...
  • Material: BK7
  • Dimension (A): custom mm
  • Dimension (B): custom mm
  • Mounting: Unmounted
Data Sheet
Precision Glass and Optics Penta Prisms
Precision Glass and Optics
These five-sided prisms deviate beams by 90 degrees, independent of the prism\'s orientation - without inverting or reversing the image. Due to geometry, the reflecting surfaces must be aluminized. Penta prisms are often used to shorten the length of an instrument\'s optical path. All dimensions are in mm. Angular tolerance ± 2 arc ...
  • Material: BK7, FS, Other
  • Dimension (A): -- mm
  • Dimension (B): -- mm
  • Mounting: Unmounted
Data Sheet
High Precision Penta Prism
FOCTek Photonics
By adding a wedge for deviation correction in output beam surface in output beam surface,it can be used as Percision Penta Prism. It is often used in Plumb Leveling, Surveying, Alignment, Rangefinding and Optical Tooling.
  • Material: BK7
  • Dimension (A): 7 mm
  • Dimension (B): 5 mm
  • Mounting: Unmounted
Data Sheet
Penta Prisms N-BK7
FOCTek Photonics
Penta prism can deviate an incident beam without inverting or reversing to 90°.The deviation angle of 90° 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 ...
  • Material: BK7
  • Dimension (A): 2.5 mm
  • Dimension (B): 2.5 mm
  • Mounting: Unmounted
Data Sheet
Beamsplitter Penta Prism
FOCTek Photonics
By adding a wedge and with partial reflective coating on first reflective surface, Penta Prism can be used as Beamsplitter. We supply Beamsplitter Penta Prism with standard Transmission/reflection (T/R) ratio of 20/80,50/50. Other T/R ratio is available upon request.
  • Material: BK7
  • Dimension (A): 7 mm
  • Dimension (B): 6 mm
  • Mounting: Unmounted
Data Sheet
Penta Prism / Half Penta Prism
Precision Optical
The penta prism employs reflection off two surfaces to deviate a light beam by 90° while preserving image parity. The beam deviation is invariant to slight rotation of the prism, making it useful for applications where critical alignment is necessary. Alternate prism configurations include the roof penta, which reverses the parity of ...
  • Material: BK7, FS
  • Dimension (A): 3 mm
  • Dimension (B): 200 mm
  • Mounting: Unmounted
Data Sheet
Penta Prisms deviate an incident beam through 90° without inverting or reversing it. They also show constant deviation (i.e. the beam is deviated through 90° irrespective of the orientation of the prism). The accuracy of the 90° deviation is therefore only dependent on the manufacturing tolerances of the prism. These ...
  • Material: BK7
  • Dimension (A): 20 mm
  • Dimension (B): 20 mm
  • Mounting: Unmounted
Data Sheet
Penta Prisms deviate an incident beam through 90° without inverting or reversing it. They also show constant deviation (i.e. the beam is deviated through 90° irrespective of the orientation of the prism). The accuracy of the 90° deviation is therefore only dependent on the manufacturing tolerances of the prism. These ...
  • Material: BK7
  • Dimension (A): 10 mm
  • Dimension (B): 10 mm
  • Mounting: Unmounted
Data Sheet
Penta Prisms deviate an incident beam through 90° without inverting or reversing it. They also show constant deviation (i.e. the beam is deviated through 90° irrespective of the orientation of the prism). The accuracy of the 90° deviation is therefore only dependent on the manufacturing tolerances of the prism. These prisms are ...
  • Material: BK7
  • Dimension (A): 7 mm
  • Dimension (B): 6 mm
  • Mounting: Unmounted
Data Sheet
Half Penta prism is exactly an half cut from penta prism, it is widely used in telescope
  • Material: BK7, FS, UVFS
  • Dimension (A): 10 mm
  • Dimension (B): 10 mm
  • Mounting: Unmounted
Data Sheet
An incident beam can be deviated by 90 degree without inverting or reversing through a Penta prism. Penta prism has five sides, four of them polished. Two reflective sides are coated with metal or dielectric HR coating and these two sides can be blackened. The deviation angle of 90deg will not be changed if the penta prism is ...
  • Material: BK7, FS, UVFS
  • Dimension (A): 10 mm
  • Dimension (B): 10 mm
  • Mounting: Unmounted
Data Sheet
Half Penta Prism
BoJen Optics, Inc.
Half-Penta prisms or Semipentaprisms are used to deviate the line of sight by 45° without inverting or reverting the image. The beam is reflected twice in the prism, with one reflection happening at less than the critical angle, therefore the prism requires aluminized and over-coated with Inconel and black paint for ...
  • Material: BK7
  • Dimension (A): 25 mm
  • Dimension (B): 15 mm
  • Mounting: Unmounted
  • Angle Tolerance: 3 arc min
Data Sheet
Penta Prisms
Crysmit Photonics CO.,Ltd
Penta prism can deviate an incident beam without inverting or reversing to 90°.The deviation angle of 90° 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 ...
  • Material: BK7
  • Dimension (A): 50 mm
  • Dimension (B): 50 mm
  • Mounting: Unmounted
Data Sheet
RMI Penta Prisms - CaF2
Rocky Mountain Instrument Co.
Penta Prisms deviate a beam by 90º without inverting or reversing the image. These prisms also have the property of constant deviation, which means that the 90º deviation angle applies to all rays transmitted by the effective aperture, regardless of their angle with respect to the optical axis. Penta prisms are thus very ...
  • Material: CaF2
  • Dimension (A): - mm
  • Dimension (B): - mm
  • Mounting: Unmounted
  • Dimensions: Custom 
  • ...
Data Sheet
RMI Penta Prisms - BK7-UVFS-FS
Rocky Mountain Instrument Co.
Penta Prisms deviate a beam by 90º without inverting or reversing the image. These prisms also have the property of constant deviation, which means that the 90º deviation angle applies to all rays transmitted by the effective aperture, regardless of their angle with respect to the optical axis. Penta prisms are thus very ...
  • Material: BK7, FS, UVFS
  • Dimension (A): - mm
  • Dimension (B): - mm
  • Mounting: Unmounted
  • Dimensions: Custom 
  • ...
Data Sheet
Penta Prism
Sinocera Photonics, Inc
A pentaprism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism. The beam reflects inside the prism twice allowing the transmission of an image through a right angle without inverting it (that is, without changing the image\'s ...
  • Material: BK7
  • Dimension (A): 10 mm
  • Dimension (B): 10 mm
  • Mounting: Unmounted
Data Sheet
Penta prism’s function is to deviate the direction of the light beam by 90 degrees. Penta prism will neither invert nor reverse the image. Penta prisms are extremely useful in alignment systems as they define a right angle very precisely and independently of angle of incidence. Rays entering one face emerge from the adjacent face at ...
  • Material: BK7
  • Dimension (A): 25.4 mm
  • Dimension (B): 25.4 mm
  • Mounting: Unmounted
Data Sheet

Did You know?

Penta Prisms are designed to deviate a beam of light by a constant 90 degrees and due to this property can be used to define the right angles in optical systems. By definition, they are five sided prisms and are unaffected by slight movements. The perpendicular deviation is independent and insensitive of the precise alignment of the prism with respect to the incident beam or image. The two opposite transmitting faces are often coated with an antireflection coating to reduce spurious reflections