Multispectral module
WO2026021408A1PCT designated stage Publication Date: 2026-01-29BEIJING SEETRUM TECH CO LTD
Patent Information
- Application Number
- PCT/CN2025/109724
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-25
- Filing Date
- 2025-07-22
- Publication Date
- 2026-01-29
Smart Images
Figure CN2025109724_29012026_PF_FP_ABST
Abstract
Provided is a multispectral module, comprising: a photoelectric conversion sensor based on a silicon-based material; a filter-unit array located on a photosensitive path of the photoelectric conversion sensor and formed by n types of filter units, where n is greater than 4; and a filter element located on the photosensitive path of the photoelectric conversion sensor and having a transmittance curve, wherein a cutoff wavelength of a cutoff range of the transmittance curve within a 380-500 nm waveband range is 380-430 nm, the cutoff range being 0-70 nm; and wherein there is at least one maximum transmittance value within the 380-500 nm waveband range, the cutoff wavelength corresponds to 50% of the maximum transmittance value, and the cutoff range is the absolute value of the difference between wavelengths corresponding to 20% and 80% of the maximum transmittance value. In this way, by adding the filter element to optimize the overall transmittance of the multispectral module, the accuracy of color coordinate recovery can be significantly improved.
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Citation Information
Patent Citations
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