2510332 - February 2009
Offset Projection Lens
Figure 4. Nontelecentric Optical-System Components
Advantages of Nontelecentric Architecture Some inherent advantages/features of nontelecentric architecture are:
Typically the fewest number and size of optical elements for lowest cost and fewer optical
element losses (higher efficiency), especially when optical offset is required for the application. Even more compact use of space in front of the DMD if a field-lens design is used.
Offset angle increases illumination angles to higher overall angles of incidence on the device, (see Figure 5). This typically results in the highest overall contrast. The reasons for this effect are discussed in section 4.1.1.
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