Penta Prism, 90 Degrees Deviation Prism, Right-Handed Image Prism

Overview:

A Penta Prism 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 handedness) as an ordinary right-angle prism or mirror would.

The reflections inside the prism are not caused by total internal reflection, since the beams are incident at an angle less than the critical angle (the minimum angle for total internal reflection). Instead, the two faces are coated to provide mirror surfaces. The two opposite transmitting faces are often coated with an antireflection coating to reduce spurious reflections. The fifth face of the prism is not used optically but truncates what would otherwise be an awkward angle joining the two mirrored faces.

Penta prism is the ideal optical tool for defining a right angle in an optical system, laser level and alignment.

General Specifications of Penta Prism:

Material	BK7, UV grade Fused Silica
Dimension Tolerance	±0.2mm
90° Deviation Tolerance	30 arc seconds
Flatness	λ/4@632.8nm
Surface Quality	60/40 scratch and dig
Clear Aperture	>90%
Chamfer	Protective<0.5mm@45°
Coating	Protected Aluminum reflective coating Single Layer MgF2 AR coating at VIS

Standard Products of Penta Prism:

Who We Are?

Wuhan Star Optic Technology Co., Ltd as a registered Hi-Tech company has been focusing on manufacturing high precision of optical components ever since its foundation in 2017. It is located in Wuhan Optics Valley of China and was founded as a masterwork of our founders with more than 20 years background in production, R&D and supply chain of optical components. The company holds 30+ patents for design, production and inspection allows us to manufacturing professionally and technologically. With high quality standard, meticulous workmanship, strict quality control, professional service, Star Optics aims to provide our customers and partners with win-win cooperation.

What We Do?

1, Products and Applications:

Products: our products mainly fall into the following five categories.

• Optical Elements: Optical Materials, Lenses, Windows, Mirrosr, Beamsplitters, Prisms, Filters
• Polarizing Optics: Waveplates, Polarizers, Polarizing Beamsplitters, Depolarizers, Brewster Windows, Quartz Polarization Rotatosr, Optical Isolators, Lateral Displacement Polarization Beamsplitters
• Crystals: Laser Crystals, Nonlinear Crystals, Passive Q-Switch Crystals, E-O Crystals, Birefringent Crystals
• Coatings: Anti-Reflective Coatings, Partial Reflective Coatings, High Reflective Coatings, Polarization Beamsplitter Coatings, Non-Polarizing Beamsplitter Coatings, Dichroic Coatings, Interference Filter Coatings
• Optomechanics: Optical Mounts

Applications: our products are widely used in Lasers, Laser Processing Machines, Precision Measuring Instrument, Automation Equipment, Micro Measurement Systems, Surveying Equipment, Non-Destructive Testing, Medical and Biological Imaging, Fiber Communication, and etc. With the company concept of Result-driven, Detail-oriented, Client-focused, our products are well acknowledged and widely used in industry and science by North America, Europe and Southeast Asia. 

2, Design:

You have full design freedom, and we are able to work with complex designs to get you exactly what you need including optical design, mechanical design and optical coating design.

3, Production:

Have the ability to transfer designs into production from prototyping to serial production. Production process like grinding, polishing, centering, coating and measuring process are carried out by both manual and CNC machines.

4, Inspection:

The measurement process during and after production are carried out with precision metrology equipment, high sensitive interferometers and spectrometers. Measurement reports either e-version or paper-version will be provided upon shipment.

5, Packing:

Safe and dust-free packing are chosen to ensure you receive your products safe and sound and can use directly in your production lines.

6, Measuring Service:

You might have had experiences that you are using a product, but not clear about the exact specifications making you hesitate to source better options. Sending us a sample will allow us to help you figure out the details and transfer it to production.

Please contact us by follow ways if you don’t see what you are looking for in our standard product lines.