{HEAD ~ The superposing optical system} has a first superposing lens disposed between {TAIL ~ the second lens array} and the color separating and guiding optical system and a second superposing lens having a convex lens included in the color separating and guiding optical system 
{ HEAD ~ The superposing optical system } has a first superposing lens disposed between { TAIL ~ the second lens array } and the color separating and guiding optical system and a second superposing lens having a convex lens included in the color separating and guiding optical system
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