Light distributing lens system
Abstract
Abstract A LIGHT DISTRIBUTING LENS SYSTEM FOR ILLUMINATING A DISPLAY WHICH EMPLOYS A TAPERED THREE DIMENSIONAL WEDGESHAPED PANEL MEMBER OF SUBSTANTIALLY TRANSPARENT MATERIAL HAVING A FIRST PLANAR SURFACE PROXIMATE TO THE DISPLAY AND A SECOND PLANAR SURFACE DISTAL FROM THE DISPLAY SO DISPOSED IN FRONT OF THE DISPLAY TO BE ILLUMINATED THAT THE FIRST PLANAR SURFACE IS PARALLEL TO THE DISPLAY AND THE SECOND PLANAR SURFACE IS SET AT A SLIGHT ANGLE TO THE DISPLAY. THE SYSTEM ALSO EMPLOYS A LIGHT SOURCE ENCASED IN A RECESS IN THE THICKER BASE PORTION OF THE TAPERED WEDGESHAPED PANEL MEMBER AND AN OPAQUE FRAME INTIMATELY SUPPORTING THE PERIPHERY OF THE TAPERED WEDGE-SHAPED PANEL MEMBER IN A MANNER TO OBSCURE THE LIGHT SOURCE FROM EXTERNAL VIEW BUT TO PERMIT THE PROJECTION OF LIGHT RAYS FORM THE LIGHT SOURCE ONTO THE DISPLAY DIRECTLY AS WELL AS INDIRECTLY THROUGHT INTERNAL REFLECTION FROM THE ENTIRE FIRST PLANAR SURFACE OF THE TAPERED WEDGE-SHAPED PANEL MEMBER.
Inventors
- 👤 Henry E Shotwell
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |