通过旋转，圆形渐变密度滤光片可以对光产生连续的不同程度的衰减。透过光强取决于密度片上透过点的光密度。
    这种密度片既可以用于普通光学系统，也可以用于激光系统中，滤光片尺寸从25mm到100mm不等。可选光谱 衰减范围为250-2500nm。

技术参数

基底材料	Substrate Material	B-270，紫外石英玻璃
外径尺寸	Outside Diameter	25mm,30mm,40mm,45mm,50mm,60mm,100mm
内径尺寸	Inside Diameter	7.5mm,8.0mm, 8.3mm
外径尺寸公差	Outside Diameter Tolerance	+0/-0.25mm
内径尺寸公差	Inside Diameter Tolerance	+0.25/-0mm
厚度	Thickness	1.5mm±0.25mm, 2mm±0.25mm
平行度	Parallelism	±3’
标准线性度	Standard Linearity	终点光密度的±5%
标准密度偏差	Standard Deviation of Density	终点光密度的±5%
波长范围	Design Wavelength	400-700nm标准产品 380-2000nm (B-270) 250-2500nm (石英基片)
镀膜区域	Coated Area

型号：

光密度  Optical Density	材料      Material	外径            Outside Dia.(mm)	型号          Model
			内径 Inside Dia.7.5mm	内径 Inside Dia.8.0mm	内径 Inside Dia.8.3mm
0.04 to 1.0	B270	25	CVND10-B25A	CVND10-B25B	CVND10-B25C
0.04 to 1.5	B270	25	CVND15-B25A	CVND15-B25B	CVND15-B25C
0.04 to 2.0	B270	25	CVND20-B25A	CVND20-B25B	CVND20-B25C
0.04 to 3.0	B270	25	CVND30-B25A	CVND30-B25B	CVND30-B25C
0.04 to 4.0	B270	25	CVND40-B25A	CVND40-B25B	CVND40-B25C
0.04 to 1.0	石英	25	CVND10-Q25A	CVND10-Q25B	CVND10-Q25C
0.04 to 1.5	石英	25	CVND15-Q25A	CVND15-Q25B	CVND15-Q25C
0.04 to 2.0	石英	25	CVND20-Q25A	CVND20-Q25B	CVND20-Q25C
0.04 to 3.0	石英	25	CVND30-Q25A	CVND30-Q25B	CVND30-Q25C
0.04 to 4.0	石英	25	CVND40-Q25A	CVND40-Q25B	CVND40-Q25C
0.04 to 1.0	B270	30	CVND10-B30A	CVND10-B30B	CVND10-B30C
0.04 to 1.5	B270	30	CVND15-B30A	CVND15-B30B	CVND15-B30C
0.04 to 2.0	B270	30	CVND20-B30A	CVND20-B30B	CVND20-B30C
0.04 to 3.0	B270	30	CVND30-B30A	CVND30-B30B	CVND30-B30C
0.04 to 4.0	B270	30	CVND40-B30A	CVND40-B30B	CVND40-B30C
0.04 to 1.0	石英	30	CVND10-Q30A	CVND10-Q30B	CVND10-Q30C
0.04 to 1.5	石英	30	CVND15-Q30A	CVND15-Q30B	CVND15-Q30C
0.04 to 2.0	石英	30	CVND20-Q30A	CVND20-Q30B	CVND20-Q30C
0.04 to 3.0	石英	30	CVND30-Q30A	CVND30-Q30B	CVND30-Q30C
0.04 to 4.0	石英	30	CVND40-Q30A	CVND40-Q30B	CVND40-Q30C
0.04 to 1.0	B270	40	CVND10-B40A	CVND10-B40B	CVND10-B40C
0.04 to 1.5	B270	40	CVND15-B40A	CVND15-B40B	CVND15-B40C
0.04 to 2.0	B270	40	CVND20-B40A	CVND20-B40B	CVND20-B40C
0.04 to 3.0	B270	40	CVND30-B40A	CVND30-B40B	CVND30-B40C
0.04 to 4.0	B270	40	CVND40-B40A	CVND40-B40B	CVND40-B40C
0.04 to 1.0	石英	40	CVND10-Q40A	CVND10-Q40B	CVND10-Q40C
0.04 to 1.5	石英	40	CVND15-Q40A	CVND15-Q40B	CVND15-Q40C
0.04 to 2.0	石英	40	CVND20-Q40A	CVND20-Q40B	CVND20-Q40C
0.04 to 3.0	石英	40	CVND30-Q40A	CVND30-Q40B	CVND30-Q40C
0.04 to 4.0	石英	40	CVND40-Q40A	CVND40-Q40B	CVND40-Q40C
0.04 to 1.0	B270	45	CVND10-B45A	CVND10-B45B	CVND10-B45C
0.04 to 1.5	B270	45	CVND15-B45A	CVND15-B45B	CVND15-B45C
0.04 to 2.0	B270	45	CVND20-B45A	CVND20-B45B	CVND20-B45C
0.04 to 3.0	B270	45	CVND30-B45A	CVND30-B45B	CVND30-B45C
0.04 to 4.0	B270	45	CVND40-B45A	CVND40-B45B	CVND40-B45C
0.04 to 1.0	石英	45	CVND10-Q45A	CVND10-Q45B	CVND10-Q45C
0.04 to 1.5	石英	45	CVND15-Q45A	CVND15-Q45B	CVND15-Q45C
0.04 to 2.0	石英	45	CVND20-Q45A	CVND20-Q45B	CVND20-Q45C
0.04 to 3.0	石英	45	CVND30-Q45A	CVND30-Q45B	CVND30-Q45C
0.04 to 4.0	石英	45	CVND40-Q45A	CVND40-Q45B	CVND40-Q45C
0.04 to 1.0	B270	50	CVND10-B50A	CVND10-B50B	CVND10-B50C
0.04 to 1.5	B270	50	CVND15-B50A	CVND15-B50B	CVND15-B50C
0.04 to 2.0	B270	50	CVND20-B50A	CVND20-B50B	CVND20-B50C
0.04 to 3.0	B270	50	CVND30-B50A	CVND30-B50B	CVND30-B50C
0.04 to 4.0	B270	50	CVND40-B50A	CVND40-B50B	CVND40-B50C
0.04 to 1.0	石英	50	CVND10-Q50A	CVND10-Q50B	CVND10-Q50C
0.04 to 1.5	石英	50	CVND15-Q50A	CVND15-Q50B	CVND15-Q50C
0.04 to 2.0	石英	50	CVND20-Q50A	CVND20-Q50B	CVND20-Q50C
0.04 to 3.0	石英	50	CVND30-Q50A	CVND30-Q50B	CVND30-Q50C
0.04 to 4.0	石英	50	CVND40-Q50A	CVND40-Q50B	CVND40-Q50C
0.04 to 1.0	B270	60	CVND10-B60A	CVND10-B60B	CVND10-B60C
0.04 to 1.5	B270	60	CVND15-B60A	CVND15-B60B	CVND15-B60C
0.04 to 2.0	B270	60	CVND20-B60A	CVND20-B60B	CVND20-B60C
0.04 to 3.0	B270	60	CVND30-B60A	CVND30-B60B	CVND30-B60C
0.04 to 4.0	B270	60	CVND40-B60A	CVND40-B60B	CVND40-B60C
0.04 to 1.0	石英	60	CVND10-Q60A	CVND10-Q60B	CVND10-Q60C
0.04 to 1.5	石英	60	CVND15-Q60A	CVND15-Q60B	CVND15-Q60C
0.04 to 2.0	石英	60	CVND20-Q60A	CVND20-Q60B	CVND20-Q60C
0.04 to 3.0	石英	60	CVND30-Q60A	CVND30-Q60B	CVND30-Q60C
0.04 to 4.0	石英	60	CVND40-Q60A	CVND40-Q60B	CVND40-Q60C
0.04 to 1.0	B270	100	CVND10-B100A	CVND10-B100B	CVND10-B100C
0.04 to 1.5	B270	100	CVND15-B100A	CVND15-B100B	CVND15-B100C
0.04 to 2.0	B270	100	CVND20-B100A	CVND20-B100B	CVND20-B100C
0.04 to 3.0	B270	100	CVND30-B100A	CVND30-B100B	CVND30-B100C
0.04 to 4.0	B270	100	CVND40-B100A	CVND40-B100B	CVND40-B100C
0.04 to 1.0	石英	100	CVND10-Q100A	CVND10-Q100B	CVND10-Q100C
0.04 to 1.5	石英	100	CVND15-Q100A	CVND15-Q100B	CVND15-Q100C
0.04 to 2.0	石英	100	CVND20-Q100A	CVND20-Q100B	CVND20-Q100C
0.04 to 3.0	石英	100	CVND30-Q100A	CVND30-Q100B	CVND30-Q100C
0.04 to 4.0	石英	100	CVND40-Q100A	CVND40-Q100B	CVND40-Q100C