Patent ID: 7824041

Claim:
An adjusting apparatus for being received in a case of a projector, the case comprising a front wall defining a through hole, two protrusions each defining a notch and formed on the inside surface of the front wall, the adjusting apparatus comprising: two supporting members partially received in the case and movably coupled to the case, each of the supporting members forming a plurality of teeth thereon; an operating member partially exposed out of the through hole of the front wall of the case; and a connecting member connected to the operating member, and rotatable received in the notches around an axis, the connecting member forming a plurality of teeth at two ends thereof for mating with the teeth of the supporting members, wherein the operating member is fittingly sleeved around the connecting member to rotate together with the connecting member around the same axis, and wherein the operating member is rotated for driving the connecting member to move up and down relative to the supporting member.