Patent ID: 7312936
Filing Date: 2007-12-25
Classification: G02B

Abstract:
1. A digital image-capturing device comprising: an outer lens barrel having first and second barrel portions, and a barrel hole that extends through said first and second barrel portions, said second barrel portion having a hole-confining surface that is formed with a barrel coupling segment and a barrel guiding segment, said barrel coupling segment being formed with an internal screw thread, and said first and second barrel portions being interconnected integrally; an image sensor disposed in said first barrel portion of said outer lens barrel; an inner lens barrel mounted in said second barrel portion of said outer lens barrel, said inner lens barrel having an outer barrel surface that is formed with a barrel engaging segment and a barrel sliding segment, said barrel engaging segment being formed with an external screw thread to engage threadedly said internal screw thread of said barrel coupling segment of said hole-confining surface of said second barrel portion, said barrel sliding segment being in sliding and rotatable contact with said barrel guiding segment of said hole-confining surface of said second barrel portion; and a lens module mounted in said inner lens barrel; wherein said barrel coupling segment has a first inner diameter and said barrel guiding segment has a second inner diameter, the first and second inner diameters are sized differently such that said hole-confining surface of said second barrel portion of said outer lens barrel is configured with a first shoulder; and wherein said barrel engaging segment has a first outer diameter corresponding to the first inner diameter, and said barrel sliding segment has a second outer diameter corresponding to the second inner diameter, the first and second outer diameters are sized differently such that said outer barrel surface of said inner lens barrel is configured with a second shoulder.