| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fitting structure of an electro-optic element in which the dropout of the electro-optic element due to the thermal expansion of a prism, the positional shift of the electro-optic element due to the contraction of an adhesive and the deterioration of adhesive force are prevented, and the cost is reduced, and to provide a projection type display. <P>SOLUTION: A fixing plate 51 which is bonded to a prism 29 for G-light and holds a DMD unit 50 for G-light is formed of a metallic plate which has a linear expansion coefficient comparable to that of the prism 29 for G-light. The DMD unit 50 for G-light is fixed by inserting holding lugs 51b to penetration holes 64 and inserting the fixing holes 52a of fixing plates 52 onto the holding lugs 51b projected from the penetration holes 64. The cross section of the holding lugs 51b in a plane perpendicular to the inserting direction and the fixing holes 52a of the fixing plates 52 are similar to each other and the gaps between the holding lugs 51b and the fixing holes 52a are uniform around the whole circumference, and the thickness of the adhesive filled into the gaps are also uniform. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
