Projector and lens module

A projector, comprising:

• a light source, providing an illumination beam;
• a light engine module, comprising:
• a light engine housing;
• and
• a light valve, accommodated in the light engine housing and used to convert the illumination beam into an image beam;
• and
• a lens module, located on a transmission path of the image beam and comprising:
• a plate;
• a lens, fixed to the plate, wherein the image beam becomes a projection beam after passing through the lens;
• at least two sliding components, disposed between the plate and the light engine housing, and at least located respectively at a first position and a second position of the light engine housing, wherein each of the at least two sliding components has a sliding member and a distance adjustment member, the plate is movably disposed on the light engine housing via the sliding members, and the distance adjustment members are in contact with the sliding members respectively, so that a distance between the first position and the lens module is equal to a distance between the second position and the lens module;
• and
• a first position adjustment device, movably disposed between the plate and the light engine housing, and configured to move in a first axial direction when applied a force, so as to drive the plate to move on the at least two sliding components in the first axial direction and with respect to the light engine housing,
• wherein each of the at least two sliding components further comprises:
• a base, disposed between the plate and the light engine housing, and having an opening facing the plate, wherein the distance adjustment member is located in the base, and the sliding member is disposed at the base such that a part of the sliding member extends out of the opening;
• and
• a boss, disposed in the base, wherein the distance adjustment member is located between the boss and the sliding member.