An incident beam can be deviated by 90° 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 slightly adjusted, this will be convenient to install it. It is widely used in laser level, alignment and optical tooling.The reflecting surfaces of this prism must be coated with a metallic or dielectric reflective coating.
It has two purposes: firstly, regardless of the incident angle on the first surface, the outgoing light turns the incident light towards a certain angle (90 °); The second difference is that it is different from a right angled prism in that the image it forms has neither rotation nor mirror reflection. A pentaprism is commonly used as a viewfinder in cameras, image observation systems, or measuring instruments.
Specifications
Dimension Tolerance | ±0.2mm |
Surface Quality | 60/40 |
Clear Aperture | >90% |
Flatness | <λ/4@632.8nm |
90° Deviation Tolerance | <30 arc seconds |
Coating | Protected Aluminum reflective coating |
Chamfer | Protective<0.5mmx45° |
An incident beam can be deviated by 90° 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 slightly adjusted, this will be convenient to install it. It is widely used in laser level, alignment and optical tooling.The reflecting surfaces of this prism must be coated with a metallic or dielectric reflective coating.
It has two purposes: firstly, regardless of the incident angle on the first surface, the outgoing light turns the incident light towards a certain angle (90 °); The second difference is that it is different from a right angled prism in that the image it forms has neither rotation nor mirror reflection. A pentaprism is commonly used as a viewfinder in cameras, image observation systems, or measuring instruments.
Specifications
Dimension Tolerance | ±0.2mm |
Surface Quality | 60/40 |
Clear Aperture | >90% |
Flatness | <λ/4@632.8nm |
90° Deviation Tolerance | <30 arc seconds |
Coating | Protected Aluminum reflective coating |
Chamfer | Protective<0.5mmx45° |
