| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging lens of three lens configuration having an excellent optical performance and mass-productivity, and an imaging device thereof. <P>SOLUTION: In the imaging lens, sequentially from an object side, a first lens block BK1 is formed by comprising a first lens L1, an aperture diaphragm S composed of an optical thin film, and a first lens substrate LS1; a second lens block BK2 is formed by comprising a second lens L2, a second lens substrate LS2, and a third lens L3; and finally a third lens block BK3 is formed by comprising a third lens substrate LS3, and a fourth lens L4. As a result, an air lens having a power is formed between a flat surface of the first lens substrate LS1 and the second lens L2, and an air lens having a power is formed between the third lens L3 and a flat surface of the third lens substrate LS3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
