JPS5631270A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Transmission original illuminating unit
Assignee: NEC Corp
•
Filing: 1979-08-22
•
Granted: —
•
Expires: 1999-08-22
Abstract
Abstract PURPOSE:To change the spectral energy distribution of the incident light to the original surface, by illuminating the transmission original with plural light sources different in spectral energy characteristic simultaneously. CONSTITUTION:Distances between transmission original (a) and fluorescent lamps (b) and (c) different in spectral energy distribution are changed independently by distance changing means (e), thereby obtaining a desired spectral energy distribution of the reflection light from the original.
Inventors
- 👤 Tsutomu Honma
- 👤 Tetsuya Takahashi
- 👤 Etsuo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-24 21:57
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.