Overview: Optics

1. Atmospheric Effects

• Dispersion

• Differential Refraction across LRIS Field

2. ADC Designs

• Risley Prism

• Crossed Amici-Prisms

• Linear ADC

3. Optical Design Studies to Date

• Nelson and Mast (2002)

• Throughput; Coatings

• Work needed

4. Pointing Models

• Pointing

• Guiding

5. Budget/Schedule