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The working principle of a flat beam splitter is based on the reflection and refraction of light. When a light beam is incident on a glass surface coated with an optical film, according to the design of the film layer, a portion of the light beam will be reflected, while another portion will continue to propagate through the film layer and the glass. By adjusting the thickness, material, and structure of the film layer, the reflection and transmission ratios can be precisely controlled to meet different application requirements.
characteristic
- Adjustable reflection/transmission ratio：By designing and optimizing coatings, different reflection and transmission ratios can be achieved to adapt to different application scenarios.
- Wide band applicability：Proper selection of materials and coating design can enable a flat spectroscope to operate over a wide range of wavelengths, including visible light, ultraviolet light, and infrared light.
- High optical quality：It has high surface flatness and excellent optical performance, ensuring that the quality of the beam will not be significantly reduced due to the splitting process.
- simple structure：Compared to other types of spectrometers, flat spectrometers have a simple structure and are easy to manufacture and integrate.
A flat beam splitter is a common optical component used to separate incident light beams into two parts: one part is reflected by the mirror surface, and the other part passes through the mirror surface. This type of spectroscope is usually made of a flat glass or other transparent material, and coated with a special optical film layer on one or both sides to adjust the ratio of reflected and transmitted light. Flat panel spectrometers have a wide range of applications in optical experiments, laser systems, optical instruments, and many other fields.
application
- optics experiment：In the laboratory, flat spectrometers are widely used in laser experiments, optical measurements, and optical teaching to separate, merge, or alter optical paths.
- LASER SYSTEM：In laser processing, laser communication, and laser medical systems, flat beam splitters are used to adjust the power distribution and direction of the beam.
- optical instrument：In microscopes, spectrometers, and other optical instruments, flat spectrometers are used to guide the optical path and separate spectra.
- Imaging system：In photography and video equipment, flat beam splitters are sometimes used to separate light to achieve specific imaging effects or functions.
advantage
- High flexibility, able to adjust the ratio of reflection and transmission as needed.
- Suitable for a wide range of wavelengths, including visible light to infrared light.
- Simple structure, easy to manufacture and integrate.
disadvantage
- In some applications, additional optical components may be required to compensate for changes in the optical path caused by beam splitting.
- For specific reflection/transmission ratios, customized coating designs may be required, increasing costs.
Flat panel spectroscope is one of the indispensable basic components in optical design, and its simple structure and adjustable optical performance make it play an important role in various optical systems.
| Conventional indicators for processing polarizing spectrometers | |
| material | optical glass |
| Product Category | polarization beam splitter |
| 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% |
| splitting ratio | ±5%，T=(Ts+Tp)/2，R=(Rs+Rp)/2 |
| depth of parallelism | ＜1′ |
| 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 |
