EYEPIECE n.
of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Collimating eyepiece. See under Collimate. -- Negative, or Huyghenian, eyepiece, an eyepiece consisting of two plano-convex lenses with their curved surfaces turned toward the…
FEE n.
ee farm (Law), land held of another in fee, in consideration of an annual rent, without homage, fealty, or any other service than that mentioned in the feoffment; an estate in fee simple, subject to a perpetual rent. Blackstone. -- Fee farm rent (Eng. Law), a perpetual rent reserved upon a conveyance in fee simple. -…