Resources Contact Us Home
Projection and exposure apparatus including an optical member and a holding member

Image Number 9 for United States Patent #6144504.

A projection and exposure apparatus includes an optical member, a holding member for holding the optical member with a gap between the optical member and the holding member, and a powder charged in the gap between the optical member and the holding member, such that the optical member and the holding member are maintained in a spaced-apart relationship.

  Recently Added Patents
Personalized dashboard architecture for displaying data display applications
Substituted bicyclic HCV inhibitors
Cancer treatment kits comprising therapeutic antibody conjugates that bind to aminophospholipids
Recombinant negative strand virus RNA expression systems and vaccines
Financial transaction cards
Shape based similarity of continuous wave doppler images
Dynamic reconstruction of a calibration state of an absorption spectrometer
  Randomly Featured Patents
Leader holder with elastic element
Developer cartridge including deformation preventing projections, image forming unit and image forming apparatus
Lithographic apparatus, device manufacturing method, and device manufactured thereby
Recuperator configuration
Hog feeder
Construction toy component
Superconducting tapes
Disk drive head and suspension assembly having a slider with a groove and a connecting step
Heater bar utilizing a positive temperature coefficient heating element
Method and apparatus for testing shear strength of rubber bonded to metal insert