| 摘要 |
A taking lens system has two lens elements, a positive lens element and a meniscus lens element convex to the image side. Another taking lens system has two lens elements, a first lens element having a meniscus shape with a convex surface on the object side and having a positive optical power and a second lens element having a meniscus shape with a concave surface on the image side. A third taking lens system has three lens elements, a first lens element having a weak optical power, an aperture stop, a second lens element having a positive optical power, and a third lens element having a concave surface on the image side and having a negative optical power. The focal length of the entire taking lens system and/or the focal lengths of individual lens elements fulfill prescribed relations.
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