Compound lens and method for manufacturing the same
A compound lens and manufacturing method technology, applied to lenses, other household appliances, optics, etc., can solve problems such as poor mechanical properties, limited application range, large aberration, etc., achieve low cost, wide application range, and reduce aberrations Effect
Inactive Publication Date: 2005-11-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
The existing digital camera lenses in the industry are generally made of glass or plastic. In comparison, glass lenses have better optical and mechanical properties. However, due to the high melting point and hardness of glass, the high-temperature cooling process of the mold core during injection molding is extremely time-consuming and expensive, so the injection molding process of glass lenses is more complicated, especially in the market today. After the camera, the high cost and complicated manufacturing process of the glass lens are not conducive to the development of this type of digital camera; Large aberrations affect the quality of imaging, and the light transmission performance of plastic lenses is not as good as that of glass lenses
Therefore, it is difficult to meet the dual requirements of cost and quality by using a single glass lens group or plastic lens group
[0003] Recently, the design of composite lens has appeared in the industry, such as the composite lens manufacturing device and method described in the Taiwan Publication No. 537965 patent, which forms an integrated composite lens by forming an ultraviolet curable resin layer on the base lens surface made of glass, although This type of composite lens combines glass and resin. However, the UV curable resin is on the outer surface of the glass, and there is still the possibility of deformation; The hardening process is relatively special, and its application range is relatively limited
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[0011] Please refer to figure 1 The compound lens 1 of the present invention includes a plastic lens 2 and a glass layer 3 covering the outer surface of the plastic lens 2.
[0012] The plastic lens 2 is a spherical or aspherical lens, which is made by injection molding. The manufacturing process is as follows: firstly, the required spherical or aspherical surface is made into a mold core (not shown), and then the required spherical or aspherical surface is made by injection molding. Aspheric plastic lens 2. The glass layer 3 is plated on the surface of the plastic lens 2 by vacuum sputtering, and its function is equivalent to that of a glass lens. The specific principle of vacuum sputtering is as follows: Argon ions are used to hit the target material (the target material is optical glass in this embodiment), and the atoms of the target material are ejected and accumulated on the object to be plated (the object to be plated in this embodiment is a plastic lens 2 ) Surface to form...
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The invention provides a compound lens and its preparation method. The lens comprises plastic lens and glass layer covered out surface of the plastic lens. The preparation method comprises follows steps: first, use jet forming method to prepare a plastic lens, then cover glass layer on out surface of plastic lens by vacuum splash coating.
Description
【Technical Field】 [0001] The invention relates to a compound lens applied to a digital camera and a manufacturing method thereof. 【Background technique】 [0002] With the continuous development of Internet multimedia technology, digital cameras have been widely used, especially in recent years, portable electronic devices such as mobile phones and PDAs have also been rapidly developing in the direction of high performance and multi-function. The combination of digital cameras and portable electronic devices has been Become a feature of the development of mobile multimedia technology. As a key component of a digital camera, the optical lens greatly affects the image quality of the digital camera. The existing digital camera lenses in the industry are generally made of glass or plastic. In comparison, glass lenses have better optical and mechanical properties, have less deformation at high temperatures and are not prone to aberrations, and the hardness of glass is higher, which is ...
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IPC IPC(8): G02B3/00
Inventor吕昌岳余泰成陈杰良
OwnerHONG FU JIN PRECISION IND (SHENZHEN) CO LTD