Light emitting device and image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2018
Issued Date -
N/A
app pub date -
Apr 25, 2014
filing date -
Apr 26, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A light emitting device includes a light source, a light guide plate, a diffusion sheet, and a lens. The light source is configured to perform partial light emission. The light guide plate is configured to guide light from the light source. The diffusion sheet is stacked over the light guide plate with a gap defined between the light guide plate and the diffusion sheet, and is configured to diffuse the light guided by the light guide plate. The lens is stacked on the diffusion sheet and has an upper surface serving as a light emitting surface.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- F21V Class
- 3266 Applications Filed
- 2625 Patents Issued To-Date
- 80.38 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F21V Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 30, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 30, 2029 |
