RMI CaF2 Dove Prism
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United States
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On FindLight:
since 2015
Description
Dove Prisms are an essential component in advanced opto-mechanical systems, renowned for their ability to function as image rotators. These prisms are a specialized form of the right-angle prism and utilize total internal reflection (TIR) to produce an inverted image that exits without deviation. Their unique design allows for precise image manipulation, making them invaluable in various optical applications.
One of the defining characteristics of Dove Prisms is their ability to rotate an image at twice the angular rate of the prism's rotation around its optical axis. This feature is particularly beneficial in systems where image orientation needs to be dynamically adjusted. To achieve optimal performance, it is crucial that the incident light is parallel or collimated, as the prism's length is approximately four times its height.
In environments where maintaining a clean hypotenuse for TIR is challenging, Dove Prisms can be enhanced with either metal or dielectric coatings. These coatings ensure reliable performance by maintaining the integrity of the internal reflection process, even in less-than-ideal conditions. This adaptability makes Dove Prisms a versatile choice for engineers and designers seeking robust optical solutions.
RMI CaF2 Dove Prism
Specifications |
|
|---|---|
| Material: | CaF2 |
| Mounting: | Unmounted |
| Dimensions: | Custom |
| Design Wavelength: | 546.1 nm |
Features
- Image Rotation: Dove Prisms are designed to rotate images in opto-mechanical systems, using total internal reflection (TIR) for an inverted image output without deviation.
- Angular Rate: The image rotates at twice the angular rate of the prism when it is rotated about its optical axis.
- Design Specifications: The length of the prism is approximately four times its height, requiring incident light to be parallel or collimated.
- Material Options: Available in BK7, UVFS, FS, and CaF2 materials.
- Design Wavelength: Optimized for 546.1 nm.
- Dimensional Tolerance: +0.000", –0.010".
- Angular Deviation: ≤ 3 arc minutes.
- Bevels: 0.010" – 0.030" at 45º.
- Clear Aperture: Exceeds central 85% of diameter.
- Coating Options: Metal or dielectric coatings available for applications where the hypotenuse cannot remain clean for TIR.
Applications
- Opto-Mechanical Imaging Systems: For precise image rotation and inversion applications
- Beam Steering Systems: Enables controlled image rotation in optical paths
- Scientific Imaging Instruments: Used in laboratories for derotation and optical manipulation
- Aerospace and Defense Optics: Integrated into airborne and satellite optical systems
- Laser Optical Setups: Ideal for alignment, rotation, and beam manipulation in laser systems
Frequently Asked Questions
Dove Prisms use total internal reflection (TIR) to produce an inverted image which emerges from the exit surface without deviation.
As the prism is rotated about its optical axis, the image will rotate at twice the angular rate of the prism.
Dove Prisms are used as image rotators in a variety of opto-mechanical systems.
The dimensional tolerance of the Dove Prism is + 0.000", – 0.010".
The surface quality of the Dove Prism is 10-5 20-10.