RMI Right Angle Prism - CaF2
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since 2015
Description
Right Angle Prisms from Rocky Mountain Instrument Co. are expertly crafted optical components that excel in beam deviation and retro-reflection applications. These prisms offer a significant advantage over plane mirrors due to their ease of mounting and alignment, ensuring precision in optical setups. The design of the right angle prism allows for high throughput, particularly when the hypotenuse is employed in total internal reflection (TIR) mode. This is further enhanced by anti-reflection coatings on the entrance and exit surfaces, facilitating a 90° angle reflection for incident beams and resulting in inverted images.
For applications requiring external reflection, the hypotenuse of the prism can be coated with either a metal or dielectric high reflectance coating. This versatility makes right angle prisms an ideal choice for retro-reflection tasks. When a beam enters perpendicularly to the hypotenuse, it is reflected by the prism's legs and exits parallel to its original path. In situations where internal reflection is desired but field angle requirements exceed TIR limits, or if environmental conditions prevent maintaining a clean hypotenuse for TIR, a reflective coating can be applied to ensure optimal performance.
Rocky Mountain Instrument Co. is committed to providing high-quality optical solutions, leveraging a collaborative approach with customers to address even the most technically demanding requirements. By engaging with clients early in the development process, RMI transitions prototype concepts into efficient, manufacturable solutions, ensuring that each product meets the highest standards of precision and reliability.
RMI Right Angle Prism - CaF2
Specifications |
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|---|---|
| Material: | CaF2 |
| Dimensions: | Custom |
| Surface Flatness: | Lambda/4 @ 633nm |
| Surface Quality: | 20-10 Scratch-Dig |
Features
- High Beam Deviation and Retro-Reflection: Right Angle Prisms are ideal for applications requiring precise beam deviation and retro-reflection, offering superior performance over plane mirrors.
- Total Internal Reflection (TIR): Achieve high throughput when the hypotenuse is used in TIR, with anti-reflection coatings on entrance and exit surfaces for optimal performance.
- External Reflection Option: The hypotenuse can be coated with a metal or dielectric high reflectance coating for external reflection applications.
- Versatile Retro-Reflection: Right Angle Prisms can be used for retro-reflection, reflecting beams parallel to their original path when entering perpendicular to the hypotenuse.
- Material Options: Available in materials such as BK7, UVFS, FS, SF2, and CaF2, catering to a wide range of optical requirements.
- Precision Surface Quality: Polished surfaces feature high precision with surface figures of λ/20 at 633 nm for BK7, UVFS, FS, SF2, and λ/4 at 633 nm for CaF2.
- Superior Surface Quality: Surface quality is maintained at 10-5 for BK7, UVFS, FS, SF2, and 20-10 for CaF2.
- Dimensional Precision: Dimensions are uniform with a tolerance of +0.000", –0.010" ensuring consistent performance.
- Angular Precision: Angular deviation is kept to ≤ 3 arc minutes for accurate optical alignment.
- Clear Aperture: Exceeds the central 85% of the diameter, ensuring maximum usability of the prism surface.
Applications
- Beam Steering Systems: Directs beams precisely at 90° for optical alignment
- Retro-Reflection Applications: Maintains optical path parallelism in measurement systems
- Laser Optical Assemblies: Used in laser setups for beam deviation and inversion
- Imaging Systems: Inverts images effectively for optical imaging instruments
- Scientific and Research Instruments: Essential for beam manipulation and optical experiments
Frequently Asked Questions
If it is desirable to use either the hypotenuse or the legs in internal reflection mode, but field angle requirements exceed TIR acceptance limits, or if the environment in which the prism is to be used does not allow the hypotenuse to be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the hypotenuse.
High throughput is attained when the hypotenuse is used in total internal reflection (TIR), and the entrance and exit surfaces are anti-reflection coated.
Yes, the hypotenuse may also be used in external reflection, in which case it is coated with a metal or dielectric, high reflectance coating.
Right Angle Prisms are often preferable to plane mirrors, because they are easier to mount and align.
Right Angle Prisms are well suited for beam deviation and retro-reflection.