Special Prisms For Various Purposes (Medical Equipment Systems, Industrial Measurement Systems, Etc.)
Special Prisms For Various Purposes (Medical Equipment Systems, Industrial Measurement Systems, Etc.)
An optical prism is an optical element made of a transparent material (such as glass or crystal) with at least two intersecting optical planes. When light passes through a prism, it is refracted due to the difference in the refractive index of the prism material and the surrounding medium, thereby changing its propagation direction. In addition, prisms can also achieve other optical functions such as dispersion, reflection, focusing or polarization through their specific shape and design. In optical systems, prisms are widely used in various fields such as spectral analysis, optical imaging, optical communications and laser technology to control, adjust and optimize light.
Special Prisms in Medical Device Systems
1. Schmidt-Beehan Prism
Product Description
The Schmidt-Beehan prism is a precision coaxial instrument prism with image inversion. This feature is very useful in many direct observation applications and can replace relay lenses to make optical systems more compact. Each prism is coated with anti-reflection coating and metal coating to improve the overall clarity of the system.
Specifications
Angle tolerance: 5 arc seconds to ensure stable image resolution.
Design: Coaxial design for easy integration into medical devices.
Coating: Anti-reflection coating and metal coating to improve light transmittance and system clarity.
2. Dove Prism
Product Description
The Dove prism has a 180° image rotation function and can produce left-handed images. It is often used for image rotation or transfer reflection and can be used in specific optical imaging systems in medical devices.
Specifications
Image rotation angle: 180°.
Rotation direction: left-handed.
Application: Image rotation, transfer reflection.
Material: The diagonal surfaces can be uncoated, anti-reflective coated or aluminum-coated.
Special prisms in industrial measurement systems
1. Cubic reference prism
Product description
The cubic reference prism is a regular hexahedron with small angular error between adjacent faces and multiple adjacent faces coated with reflective film and crosshairs. In the process of spacecraft development, the normal of the reflective surface of the cubic reference prism can be directly measured by an electronic theodolite to construct a cubic mirror coordinate system to represent the spatial position of the product.
Specifications
Shape: regular hexahedron.
Angular error: usually 2~5 seconds.
Coating: Multiple adjacent faces are coated with reflective film and crosshairs.
Application: Space position construction in spacecraft development and industrial measurement.
2. Right-angle prism
Product description
Right-angle prisms are often used to bend image paths or turn the light path 90°. It can produce left-handed images, depending on the direction of the prism and whether the image is flipped or rotated. Right-angle prisms can also be used in applications such as synthetic images/beam offsets.
Specifications
Light deflection angle: 90°.
Image rotation direction: left-handed (depending on prism orientation).
Material: High refractive index material (e.g. N-SF11).
Coating: Available with uncoated, beveled aluminum coating or anti-reflection coating.
3. Powell prism (laser linear generator lens)
Product description
Powell prisms are optimized for laser beam input with a diameter of 0.8mm and can convert laser beams into uniform straight lines. Unlike cylindrical lenses that produce Gaussian beam characteristics with central highlights and edge attenuation, Powell prisms can form straight lines with uniform energy distribution, which is very suitable for calibration and machine vision applications.
Specifications
Input laser beam diameter: 0.8mm.
Output beam shape: uniform straight line.
Applications: calibration, machine vision.
Material and coating: customized according to specific needs.
