DLPA052A November   2014  – August 2025 DLP9000 , DLP9000X , DLP9500 , DLPC900 , DLPC910

 

  1.   1
  2.   System Design Considerations Using TI DLP Technology down to 400 nm
  3.   Trademarks
  4. 1Introduction
  5. 2Thermal Considerations
  6. 3Duty Cycle Considerations
  7. 4Coherency Considerations
  8. 5Optical Considerations
  9. 6High De-magnification System Considerations
    1. 6.1 Incoherent Sources (Lamps and LEDs)
    2. 6.2 Coherent Sources (Lasers)
  10. 7Summary
  11. 8References
  12. 9Revision History

5 Optical Considerations

In systems with one-to-one or greater magnification, designing illumination and output optics with ƒ numbers as small as ƒ/2.4 are practical and desirable, since slightly under-filling the output pupil provides tilt variation tolerance in an optical system. For example, illuminating with ƒ/3 into an ƒ/2.4 output allows the image of the illumination pupil to remain within the output aperture with tilt angle variations.

General DLP optical system considerations are discussed in the tool DLP® Optical Design Guidlines. The following sections of this application note examine considerations for high de-magnification systems.