Minisized imaging lens

A lens and miniature technology, applied in the direction of optical components, optics, instruments, etc., can solve the problems of long overall length, loss of competitiveness, and heavy weight of the lens, and achieve the effect of low tolerance sensitivity, reduced tolerance sensitivity, and compact structure
CN1877383AInactive Publication Date: 2006-12-13ASIA OPTICAL CO INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ASIA OPTICAL CO INC
Publication Date
2006-12-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a micro view-finding lens which comprises a first aspheric surface lens with positive diopter and a second aspheric surface with negative diopter, wherein the first lens is a lunes lens projecting to the imaging plane, which includes the concave plane against to the object and the convex plane opposite to the imaging plane for enlarging light beam on the concave plane and getting larger area on the convex plane to correct image difference and low error sensitivities. The second lens is a negative lens which employs aspheric design to compensate color difference, correct positive axle image difference and shorten the general length of the optical system.
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Description

【Technical field】

[0001] The invention relates to a miniature imaging lens, in particular to a miniature imaging lens with high performance, low cost and small size, which is composed of fewer lenses and is suitable for use in mobile phones and thin digital cameras. 【Background technique】

[0002] The integration of mobile data devices such as mobile phones, personal digital assistants (PDAs) and photoelectric technology has become one of the trends in today's technological development, and camera phones are a typical representative of this technology trend. As far as the design is concerned, in order to be portable and meet the requirements of humanization, the imaging lens of the camera phone not only needs to have good image quality, but also needs to be small in size and low in cost. Therefore, unlike the adjustable focus and variable focus lenses of traditional cameras, camcorders, and general digital cameras, the imaging lenses used in camera phones are much smaller in...

Claims

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