Optical glass and optical element
By reasonably adjusting the composition of the optical glass, the problem of difficult to effectively correct high-order chromatic aberrations in the prior art from the visible short-wavelength region to the infrared wavelength region is solved, and optical glass and optical components with high dispersion and low relative to the infrared wavelength region are realized, and good chromatic aberration correction capabilities are provided.
Patent Information
- Application Number
- CN202411316428.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-05
- Filing Date
- 2024-09-20
- Publication Date
- 2025-03-28
AI Technical Summary
It is difficult for the prior art to effectively correct higher order chromatic aberrations from visible short wavelength regions to infrared wavelength regions, especially optical glasses with low partial dispersion PCs and t in infrared wavelength regions.
By reasonably adjusting the composition of the optical glass, ensure that the content of Nb2O5 is below 20.00%, the total content of P2O5, SiO2, and B2O3 is below 20.00%, the total content of BaO and ZnO is above 4.80%, the total content of Nb2O5, TiO2, and WO3 is above 2.70%, and the mass ratio of BaO content relative to the total content of P2O5, SiO2, and B2O3 is above 0.250, and at the same time, it meets the specific relative partial dispersion PC,t range.
An optical glass and optical element with high dispersion and low relative to partial dispersion of PC, t in the infrared wavelength region is realized, and the chromatic aberration can be well corrected in a wide wavelength range.