×

Projection optical system having a light blocker

  • US 7,841,727 B2
  • Filed: 02/29/2008
  • Issued: 11/30/2010
  • Est. Priority Date: 07/30/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A projection optical system, comprising:

  • a digital micro-mirror device comprising a base having a plurality of outer pads, a micro-mirror array disposed on the base, and a plurality of bonding wires electrically connecting the outer pads with the corresponding micro-mirror array; and

    a light blocker comprising a first L-shaped portion and a second L-shaped portion, the first L-shaped portion and the second L-shaped portion disposed along the light path of the digital micro-mirror device and configured for blocking the light incident to the bonding wires and the light reflected by the bonding wires.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×