Wide-angle projection system

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United States of America Patent

PATENT NO 9784956
SERIAL NO

14657768

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A wide-angle projection system includes a refraction unit and a reflection unit. The refraction unit includes a first lens group of positive refractive power and a second lens group of negative refractive power. The second lens group is disposed between the first lens group and the reflection unit and the condition: 0.9

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Patent Owner(s)

Patent OwnerAddress
YOUNG OPTICS INCNO 7 HSIN ANN RD HSINCHU SCIENCE PARK

International Classification(s)

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  • 2015 Application Filing Year
  • G02B Class
  • 9095 Applications Filed
  • 7457 Patents Issued To-Date
  • 82 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yi-Hsueh Hsinchu, TW 23 64
Hsu, Ya-Ling Hsinchu, TW 109 480
Tien, Chi-Chang Hsinchu, TW 1 0
Tsai, Li-Chiu Hsinchu, TW 6 9

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Patent Citation Ranking

  • 0 Citation Count
  • G02B Class
  • 0 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1235356340512853141972332801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0100020003000250500750125015001750225025002750325035003750

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