Fabrication of Aspheric Lens/Mirror
Inttroduction
φ 120 mm BK7 aspherical lens with high order terms
ITRC owns the integrated facilities for aspherics fabrication and inspection. The aspheric surface is well ground and polished as precisely as possible by automatic curve generating and polishing machine. The nano scale profilometer provides true nanometer resolution form accuracy of aspheric surface. From this profile data, it is easy for the user to compensate the real form of the aspheric surface. CGH interferometer can be used to measure the whole area of the aspheric sample. For further information, please call and discuss your specific application with us.
Technology
- Aspherical form generator: size φ 5 – 150 mm, accuracy ≤ 5 µm
- Aspherical polisher: size ≤ φ 300 mm, accuracy ≤ λ/4
- Profilometer: size ≤ φ 300 mm, accuracy ≤ 0.01 µm
Application
Digital camera, telescope, microscope, contact lenses, remote-sensing instruments, lookhead display, projector, video camera and optical couplers
φ 160 mm SiC parabolic mirror
φ 300 mm Zerodur® parabolic mirror coating: reflectance > 98%
