| 摘要 |
According to an embodiment of the present invention; an imaging optical system, in order from an object part, comprises: a first lens which has negative refractive power, having both concave sides; a second lens having positive refract power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power; and a seventh lens having refractive power. An aberration improvement effect is able to be improved; and moreover, high resolution and a wide angle is able to be achieved. |
