| 线偏振光垂直入射在波片上，沿同一方向传播的光和光，由于传播速度不同，从波片射出时其相位差为π/4时，将此波片称为四分之一波片；相位差为π/2时，将此波片称为二分之一波片或半波片； 波片分为多级(低级)波片、零级波片和真零级波片等，零级和真零级波片通常由两片胶合或分离(空气隙)组成，欢迎来电垂询. |
1/4石英波片(Quartz Waveplate:Low-Order)选型表：
| 型号（未镀膜） | 型号(镀增透膜） | 名称 | 波长（nm） | 直径(mm) |
| QWLO12.7-488-4 | QWLO12.7-488-4A | 1/4石英波片 | 488 | Ф12.7 |
| QWLO25.4-488-4 | QWLO25.4-488-4A | 1/4石英波片 | Ф25.4 | |
| QWLO12.7-514-4 | QWLO12.7-514-4A | 1/4石英波片 | 514 | Ф12.7 |
| QWLO25.4-514-4 | QWLO25.4-514-4A | 1/4石英波片 | Ф25.4 | |
| QWLO12.7-532-4 | QWLO12.7-532-4A | 1/4石英波片 | 532 | Ф12.7 |
| QWLO25.4-532-4 | QWLO25.4-532-4A | 1/4石英波片 | Ф25.4 | |
| QWLO12.7-632.8-4 | QWLO12.7-632.8-4A | 1/4石英波片 | 632.8 | Ф12.7 |
| QWLO25.4-632.8-4 | QWLO25.4-632.8-4A | 1/4石英波片 | Ф25.4 | |
| QWLO12.7-800-4 | QWLO12.7-800-4A | 1/4石英波片 | 800 | Ф12.7 |
| QWLO25.4-800-4 | QWLO25.4-800-4A | 1/4石英波片 | Ф25.4 | |
| QWLO12.7-1064-4 | QWLO12.7-1064-4A | 1/4石英波片 | 1064 | Ф12.7 |
| QWLO25.4-1064-4 | QWLO25.4-1064-4A | 1/4石英波片 | Ф25.4 |
1/2石英波片(QuArtz Waveplate:Low-Order)选型表：
| 型号（未镀膜） | 型号(镀增透膜） | 名称 | 波长（nm） | 直径(mm) |
| QWLO12.7-488-2 | QWLO12.7-488-2A | 1/2石英波片 | 488 | Ф12.7 |
| QWLO25.4-488-2 | QWLO25.4-488-2A | 1/2石英波片 | Ф25.4 | |
| QWLO12.7-514-2 | QWLO12.7-514-2A | 1/2石英波片 | 514 | Ф12.7 |
| QWLO25.4-514-2 | QWLO25.4-514-2A | 1/2石英波片 | Ф25.4 | |
| QWLO12.7-532-2 | QWLO12.7-532-2A | 1/2石英波片 | 532 | Ф12.7 |
| QWLO25.4-532-2 | QWLO25.4-532-2A | 1/2石英波片 | Ф25.4 | |
| QWLO12.7-632.8-2 | QWLO12.7-632.8-2A | 1/2石英波片 | 632.8 | Ф12.7 |
| QWLO25.4-632.8-2 | QWLO25.4-632.8-2A | 1/2石英波片 | Ф25.4 | |
| QWLO12.7-800-2 | QWLO12.7-800-2A | 1/2石英波片 | 800 | Ф12.7 |
| QWLO25.4-800-2 | QWLO25.4-800-2A | 1/2石英波片 | Ф25.4 | |
| QWLO12.7-1064-2 | QWLO12.7-1064-2A | 1/2石英波片 | 1064 | Ф12.7 |
| QWLO25.4-1064-2 | QWLO25.4-1064-2A | 1/2石英波片 | Ф25.4 |
