As some of you may remember (where is Herbert Highstone???) I've been playing with gradient index for refractive optics. After reading the oil- versus air-spaced thread I started wondering about mixed glass/gradient systems (like, for the past three minutes... 
).
Since liquid lenses between glass have been used in the past, would there be any issue about using a relatively soft gradient element between two traditional glass lenses? Could this be used to create an APO effect?
Jess Tauber
).Since liquid lenses between glass have been used in the past, would there be any issue about using a relatively soft gradient element between two traditional glass lenses? Could this be used to create an APO effect?
Jess Tauber
