Patent application number | Description | Published |
20080225408 | Subminiature imaging optical system - There is provided a subminiature imaging optical system installed in a mobile telecommunication terminal or a PDA, or used in a surveillance camera or a digital camera. The subminiature imaging optical system including: first, second, third and fourth lenses sequentially positioned from an object side to an image side, the first lens having positive refractive power, the second lens having negative refractive power, the third lens having negative refractive power, and the fourth lens having positive refractive power, wherein each of the third and fourth lenses has at least one aspherical surface. The subminiature imaging optical system corrects chromatic aberration superbly to reduce color fringing significantly, thereby achieving high resolution and compactness as well. | 09-18-2008 |
20090073577 | Super wide angle optical system - A super wide angle optical system including: a first lens group including one or more of irrotational symmetric lens surfaces disposed sequentially from an object side and having, overall, a negative refractive power; an aperture stop for intercepting unnecessary light; and a second lens group including one or more of irrotational symmetric lens surfaces and having, overall, a positive refractive power. | 03-19-2009 |
20090109552 | Subminiature imaging optical system - There is provided a subminiature imaging optical system suitably applicable to a subminiature optical device such as a mobile phone camera. The subminiature imaging optical system including: a first lens having positive refractive power and both convex surfaces; a second lens having negative refractive power and a concave image-side surface; a third lens having negative refractive power and a meniscus shape with a convex image-side surface; and a fourth lens having negative refractive power. | 04-30-2009 |
20090251801 | Super wide angle optical system - There is provided a super wide angle optical system including, arranged about an optical axis: a first lens having a negative refractive power and having a meniscus shape with a convex object-side surface; a second lens having a negative refractive power and having a meniscus shape with a convex object-side surface; a third lens having a positive refractive power and having both convex surfaces; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; and a sixth lens having a positive refractive power and having both convex surfaces. | 10-08-2009 |
20130329307 | LENS MODULE - There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1, | 12-12-2013 |
20140098281 | LENS MODULE - There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1, | 04-10-2014 |
20140104480 | LENS MODULE - There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1, | 04-17-2014 |
20140104701 | LENS MODULE - There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1, | 04-17-2014 |