Light projection device and head lamp for vehicle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9874330
SERIAL NO

15317765

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed herein a light projection device and a head lamp for vehicle capable of highly increasing and decreasing the illuminance of a plurality of specific regions in a light distribution designed in advance with high degree of freedom. The light projection device includes: a first optical system that forms a second light radiation region; a dynamic light deflection unit configured to deflect a light beam involved in forming the second light radiation region; a second optical system configured to project the deflected light beam to form a third light radiation region; and a deflection pattern generation unit configured to deflect and output each ray of the light beam such that a direction of deflection to be imparted is dependent on a position at which each ray is incident on the light incident portion.

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Patent Owner(s)

Patent OwnerAddress
USHIO DENKI KABUSHIKI KAISHATOKYO JAPAN

International Classification(s)

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  • 2015 Application Filing Year
  • F21Y Class
  • 711 Applications Filed
  • 661 Patents Issued To-Date
  • 92.97 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okamoto, Masashi Tokyo, JP 107 647
Shimizu, Mikio Tokyo, JP 50 1062
Sugitani, Akihiko Tokyo, JP 16 252

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Patent Citation Ranking

  • 1 Citation Count
  • F21Y Class
  • 0 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges211 - 1011 - 2000.10.20.30.40.50.60.70.80.911.11.21.31.41.51.61.71.81.922.1

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