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The working principle of a wedge-shaped spectroscope is based on the reflection and transmission of light. When light is incident on the surface of a wedge-shaped beam splitter, a portion of the light is reflected by the optical film on the surface, while another portion passes through the film and glass and continues to move forward. By controlling the thickness and material of the film, the ratio of reflected and transmitted light can be precisely controlled, as well as selectively splitting light of specific wavelengths.
characteristic
- Selective spectroscopy：Wedge spectrometers can be designed to reflect only specific wavelengths of light while allowing other wavelengths of light to pass through, making them very useful in spectral selection and filtering.
- customization：According to application requirements, the spectral ratio, reflection and transmission wavelength range of the wedge-shaped spectroscope can be customized by changing the material and thickness of the thin film.
- low-loss：Due to the efficient design of optical thin films, wedge-shaped spectrometers have relatively low optical losses during the splitting process.
A wedge-shaped spectroscope is a special optical component composed of two pieces of glass or other transparent material with a certain angle, usually coated with one or more special optical films between these two pieces of material. This structure allows the wedge-shaped beam splitter to split the incident light into two parts: one part passes through the mirror, and the other part is reflected. The design and coating of wedge-shaped spectrometers can be customized according to specific wavelengths or spectral ranges.
application
- optics experiment：In scientific research and laboratory testing, wedge-shaped spectrometers are used for optical path allocation, spectral analysis, and laser experiments.
- Imaging system：In imaging systems, wedge-shaped spectrometers can be used for optical path separation to simultaneously image the same scene at different wavelengths.
- communication：In fiber optic communication, wedge-shaped spectrometers can be used for signal merging and separation, especially in wavelength division multiplexing systems.
- Medical equipment：In medical imaging and diagnostic instruments, wedge-shaped spectrometers are used to precisely control the spectral components irradiated onto the sample.
advantage
- Highly customized, allowing for precise control of light distribution.
- Selective spectroscopy with high efficiency for specific wavelengths.
- Suitable for various applications, from basic scientific research to industrial and medical fields.
disadvantage
- Compared to other types of spectrometers, the cost may be higher.
- The design and manufacturing process is relatively complex, requiring precise control of material and film parameters.
The design and manufacturing process is relatively complex, requiring precise control of material and film parameters.
| Conventional indicators for processing wedge-shaped spectrometers | |
| material | optical glass |
| Product Category | Wedge-shaped spectroscope |
| Processing size (mm) | 5-100 |
| Diameter tolerance (mm) | ±0.05 |
| Surface smoothness (American standard) | 40-20 or higher |
| Surface Accuracy | λ/8 @ 632.8 or higher |
| damage threshold | >500mJ/cm2，20ns，20Hz，@1064nm |
| Optical aperture | ＞90% |
| oblique angle | 2°-10° |
| chamfer | Protective chamfer |
| coating film | One side is coated with a partially reflective dielectric film, and the other side is coated with an anti reflective film |
