The 30°-60°-90° Littrow prism is typically made of optical glass. Internal reflection and refraction select and separate particular wavelengths. A coated prism provides 60° ray deviation; an uncoated prism is suited to dispersion. Its optical-path characteristics allow reflected light to retrace its path. Different shapes, glasses and coatings are available. Applications include spectral analysis, separating composite incident light into monochromatic beams in different directions; laser wavelength selection and beam shaping to improve monochromaticity; wavelength- and angle-accuracy calibration of optical instruments; and optical-path adjustment for improved imaging.
| Parameter | Value |
| Material | N-BK7; UV Fused Silica; Other Optical Glasses |
| Dimensional Tolerance | ±0.1mm (Standard); ±0.05mm (High Precision) |
| Surface Finish | 60-40 S/D (Standard Type); 10-5 S/D (High-Precision Type) |
| Surface Flatness [632.8nm] | λ/4@632.8nm (Standard Type); λ/8@632.8nm (High-Precision Type) |
| Deviation at 180° | ±3 Arcmin (Standard); ±30 Arcsec (High Precision) |
| Clear Aperture Dimension | >85% |
| Chamfer [45°] | <0.25mm×45° |
| Coating | Reflective Coatings, AR Coatings, etc. Available on Request |
| Ray Deviation [Coated] | 60° |
Spectral analysis (dispersive elements in spectrometers); laser technology (wavelength selection and beam shaping); optical instrument calibration (wavelength and angular accuracy); optical imaging (optical path adjustment and image quality improvement).
Please provide your email to download the datasheet.
WTS PHOTONICS CO.,LTD was founded in 2009 and was awarded National High-tech Enterprise in 2021, Fujian Science and Technology SME, Science and Technology Little Giant Enterprise, and Fujian Province Precision-Professional-Innovative Enterprise in 2022. WTS is located in the beautiful southeast coastal city of Fuzhou, the famous optical city of China. WTS has 17,000 square meters of standardized factory buildings, a group of highly skilled technicians, and complete optical processing systems, coating systems, assembly systems, and quality control systems. WTS provides customers with one-stop solutions for R&D, design, and manufacturing of high-precision optical components, high-precision optical imaging lenses, and high-power laser components.
WTS products include optical windows, lenses, cylindrical lenses, filters, mirrors, prisms, waveplates, beam splitters, laser crystals, lens assemblies and modules, and other optical components and optical systems. Products are widely used in machine vision, industrial lasers, biomedical, precision instruments, aerospace, AR&VR, semiconductors, ADAS, automotive optics, and optical communications.
WTS has passed ISO9001, ISO14001, ISO13485, and IATF16949 certifications. WTS has been deeply engaged in the optical industry for decades, serving global customers. With quality as the foundation, technology and talent as the future, WTS continues to innovate and has achieved excellent quality and reputation.