Handheld Gem Spectroscope, FGS-1
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| Diameter | 15mm |
| Length | 55mm |
| Net weight | 20g |
| Packaging | Outer cardboard box with an inner leather case |
Features
- Fixed focus, simple operation
- No engraved scale
- High-resolution with a black-coated exterior to minimize light reflection and interference
- Diffraction grating and prism combined imaging
- Evenly spaced wavelength spectrum, making it easier to distinguish absorption lines and details in the red-yellow region.
- The spectral regions are evenly distributed, with all wavelengths arranged at equal intervals.
- The resolution in the red spectrum is higher compared to prism-type spectroscopes.
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