Patent ID: 6773115
Filing Date: 2004-08-10
Classification: G03B

Abstract:
An adjusting apparatus for projection, comprising:a carrier, having a central screw hole and three rounded indentations around the central screw hole; an adjusting frame, placed on the back of the carrier, the adjusting frame comprising a plane section having a circular concave for accommodating a ball bearing and three screw holes corresponding to the rounded indentations, a base section connecting to the lower portion of the plane section and having at least one slot, and a fastening bolt for connecting the adjusting frame to the carrier; three angle-adjusting bolts, respectively inserting through the screw holes to abut against the rounded indentations; a holder, placed below the base section of the adjusting frame and having at least one positioning screw hole corresponding to the slot of the adjusting frame; and at least one positioning bolt, inserting through the slot and screwing to the positioning screw hole.