Pellicle Mirror

A pellicle mirror (diminutive of "pellis" - skin or film) is an ultra-thin, ultra-lightweight semi-transparent mirror employed in the light path of an optical instrument, splitting the light beam into two separate beams, both of reduced light intensity. Splitting the beam enables its use for multiple purposes simultaneously, while the thinness of the film greatly reduces reflections commonly associated with glass beam splitters.

Read more about Pellicle Mirror:  In Photography

Famous quotes containing the word mirror:

    A novel is a mirror carried along a high road. At one moment it reflects to your vision the azure skies at another the mire of the puddles at your feet. And the man who carries this mirror in his pack will be accused by you of being immoral! His mirror shews [sic] the mire, and you blame the mirror! Rather blame that high road upon which the puddle lies, still more the inspector of roads who allows the water to gather and the puddle to form.
    Stendhal [Marie Henri Beyle] (1783–1842)