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
PMI feedback with codebook interpolation
Digital display
Modulation of HSP47 expression
Method and system for electronic assistance in dispensing pharmaceuticals
Production of battery grade materials via an oxalate method
Auto-aligning spectroscopy system
  Randomly Featured Patents
Telephone line current modulator
Heat transfer device for a motor vehicle and process of making same
Cementing compositions and use of such compositions for cementing oil wells or the like
Method for producing an orexigenic effect
Semiconductor memory device for performing refresh operation
Resilient high pressure metal-to-metal seal and method
Image processing device, image processing method, program, and recording medium
Faucet spout
Flame retardant polycarbonate composition
Process for the thermal stabilization of acrylic fibers and films