Heat dissipation device for projector

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11838694
SERIAL NO

17874217

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A heat dissipation device for a projector includes a light source, a light valve, a prism set, a shading element, and a projection lens. The light source emits a light beam. The light valve is disposed downstream of a light path of the light source to receive the light beam, convert a part of the light beam into image light and another part of the light beam into an ineffective light beam. The prism set includes at least one prism, receiving the image light and the ineffective light beam. The shading element includes a heat dissipation part and is disposed downstream of a light path of the prism set and used to block the ineffective light beam from the prism set. The projection lens is disposed downstream of the light path of the prism set.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • YOUNG OPTICS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Yu-Ting Hsinchu, TW 106 505
Lo, Wei-Cheng Hsinchu, TW 29 76

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 5, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 5, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 5, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00