| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lens barrel which attains reduction in manufacturing costs. <P>SOLUTION: The lens barrel 3 has a first lens group G1, a second lens group G2, a third lens group G3, a first support frame 10 for supporting the first lens group G1, a second support frame 20 for supporting the second lens group G2, a third support frame 30 for supporting the third lens group G3, a first drive unit 50, a second drive unit 60, and a shutter unit 29 fixed to the second support frame 20. The first lens group G1 has an overall negative refractive power, and includes a prism PR. The second support frame 20 is driven along a second optical axis A2 by the first drive unit 50. The third support frame 30 is driven along the second optical axis A2 by the second drive unit 60. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
