Product Introduction
Yichi Optoelectronics provides various specifications of off-axis parabolic mirrors
√ Using aluminum film substrate reflector
√Available in off-axis options of 15 °, 30 °, 45 °, 60 °, or 90 °
√Aluminum film and gold film can be selected
The difference from standard parabolic mirrors is that off-axis parabolic metal film mirrors can direct and focus incident parallel light at specific angles, and support infinite focal points. These mirrors are commonly used as parallel light tubes in Schlieren and MTF systems, while gold-plated off-axis parabolic mirrors are used in FLIR testing systems.
be careful:Due to its surface roughness of 175 Å, this type of reflector is not suitable for visible and ultraviolet applications that require low scattering.
Specification parameters:
| Off axis angle | 15 °, 30 °°, 45°, 60 °90° |
| Diameter mm | 1 '', 2''、 three''、 four'' |
| Diameter tolerance mm |
+0.00/-0.38 |
| Focal length tolerance% |
±1 |
| Surface morphology RMS |
1λ |
| Father focal lengthPFL mm | 0.5''、 1''、 1.5''、 2''、 3''、 4'' |
| Effective focal length EFL mm |
1 '', 2'', 3 '', 4 ''、 5''、 6''、 7''、 8'' |
| Surface roughness(Angstroms) |
<175 RMS |
| substrate | aluminium6061-T6 |
| Coating |
Protective gold/aluminum film |
| Wavelength range um |
0.7 - 2 |
|
Wavelength Rangeum |
700 - 2000 |
Select coating according to different wavelengths

Off-axis parabolic mirrorroutinemodel
| model |
Caliber (inches) | Effective focal length (inches) | Coating |
| MY127-OAP-254 |
0.5 | 1 | Protective gold/aluminum film |
| MY127-OAP-508 |
0.5 | 2 |
Protective gold/aluminum film |
| MY254-OAP-254 |
1 | 1 |
Protective gold/aluminum film |
| MY254-OAP-508 |
1 | 2 |
Protective gold/aluminum film |
| MY254-OAP-762 |
1 | 3 |
Protective gold/aluminum film |
| MY254-OAP-1016 |
1 | 4 |
Protective gold/aluminum film |
| MY254-OAP-1270 |
1 | 5 |
Protective gold/aluminum film |
| MY254-OAP-1524 |
1 | 6 |
Protective gold/aluminum film |
| MY508-OAP-254 |
2 | 1 |
Protective gold/aluminum film |
| MY508-OAP-508 |
2 | 2 |
Protective gold/aluminum film |
| MY508-OAP-762 |
2 | 3 |
Protective gold/aluminum film |
| MY508-OAP-1016 |
2 | 4 |
Protective gold/aluminum film |
| MY508-OAP-1270 |
2 | 5 |
Protective gold/aluminum film |
| MY508-OAP-1524 |
2 | 6 |
Protective gold/aluminum film |
| MY762-OAP-254 |
3 | 1 |
Protective gold/aluminum film |
| MY762-OAP-508 |
3 | 2 |
Protective gold/aluminum film |
| MY762-OAP-762 |
3 | 3 |
Protective gold/aluminum film |
| MY762-OAP-1016 |
3 | 4 |
Protective gold/aluminum film |
| MY762-OAP-1270 |
3 | 5 |
Protective gold/aluminum film |
| MY1016-OAP-254 |
4 | 1 |
Protective gold/aluminum film |
| MY1016-OAP-508 |
4 | 2 |
Protective gold/aluminum film |
| MY1016-OAP-762 |
4 | 3 |
Protective gold/aluminum film |
| MY1016-OAP-1016 |
4 |
4 |
Protective gold/aluminum film |
| MY1016-OAP-1270 |
4 | 5 |
Protective gold/aluminum film |
