Reflection type overhead projector

A reflection type overhead projector in which a mirror Fresnel lens reflects light from a light source, and an image on said mirror Fresnel lens is converged onto a projection lens spaced from said mirror Fresnel lens and projected in an enlarged manner and displayed on a screen, comprising:

• a transmission type color liquid crystal display provided with a stripe-like color filter and with pixels of the liquid crystal display arranged in opposing relation to each stripe in the lengthwise direction thereof, said liquid crystal display being removably disposed on said mirror Fresnel lens and provided with a first polarization plate on only one side thereof in opposing relation to said mirror Fresnel lens;
• and
• a second polarization plate disposed adjacent said projection lens for effecting image formation in cooperation with said first polarization plate of said liquid crystal display.

In a reflection type overhead projector in which a mirror Fresnel lens receives and reflects incident light from a light source, and an image formed by a liquid crystal display on said mirror Fresnel lens is converged onto a projection lens and projected on a screen, the improvement wherein:

• a liquid crystal panel of said liquid crystal display is slanted toward said mirror Fresnel lens so that an image of said light source, reflected from a surface of said liquid crystal panel, is displaced from said projection lens.