Handheld Gem Spectroscope, FPS-3
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| Diameter | 18mm |
| Length | 75mm |
| Net weight | 36g |
| Packaging | Outer cardboard box with an inner leather case |
Features
- Prism-based spectroscope that provides detailed spectral analysis
- Fixed focus design ensures stable and consistent observations
- No engraved scale
- High-resolution with a black-coated exterior to minimize light reflection and interference
- Triple-prism imaging system
- Non-uniform wavelength spectrum, enhancing the visibility of darker blue-violet regions.
- The spectral bands are unevenly spaced, with the blue-violet region appearing wider and the red region compressed.
- Higher transmission for a brighter spectral display.
- Resolution in the red spectrum is slightly lower than in the blue-violet region. The focal distance may vary slightly depending on the gemstone’s color.
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