平场凹面光栅
Spectrum Scientific的平场成像凹光栅具有既不平行也不等距的凹槽。 这种类型的凹面光栅被设计成使散光和彗差最小化，适合用于光谱仪或其它线性阵列器件。 这使得像差校正凹面光栅非常适合用于诸如光电二极∞管阵列（PDA）或电荷耦合器件（CCD）这些平面阵列检测器。
Spectrum Scientific提供一系列标准○光栅。 如果我们没有满足您要求的光栅，请联系我们的销√售部门，可以为您定制。
| Product Description | Part Number |
| 164Grooves,1500nm Flat Field Concave Grating | 164-1500-045 |
| 378 Grooves, 215nm Flat Field Concave Grating | 378-215-034 |
| 406 Grooves, 250nm Flat Field Concave Grating | 406-150-034 |
| 470 grooves, 250nm Flat Field Concave Grating | 470-250-040A |
| 470 grooves, 250nm Flat Field Concave Grating | 470-250-040B |
| 719 Grooves, 900nm Flat Field Concave Grating | 719-900-030 |
| 954 Grooves, 300nm Flat Field Concave Grating | 954-300-030 |
| RDL | Reciprocal Linear Dispersion |
| α | Incident Angle from Grating Normal |
| Lα | Entrance Path Length |
| βmin | Diffracted Angle of Minimum Wavelength |
| βmax | Diffracted Angle of Maximum Wavelength |
| Lmin | Distance from Grating Center to Detector for Shortest Wavelength |
| Lmax | Distance from Grating Center to Detector for Longest Wavelength |
