Lens testing device and method
A testing device and testing method technology, applied in the field of lens manufacturing process, can solve the problems of image sensor or lens damage, lens collision, small size, etc.
Inactive Publication Date: 2011-06-22
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
At the same time, the size of this type of lens is generally small, and it is often tilted and tilted due to vibration and other reasons on the test platform for automatic measurement, which will cause the image sensor to move to the measurement position according to the expected travel. Collision with the lens, resulting in damage to the image sensor or lens
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[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0013] see figure 1 and figure 2 , the lens test device 100 provided by the embodiment of the present invention includes a data processing device 10 , an image sensor 20 , a test platform 30 , a light source module 40 , and an image capture device 50 .
[0014] The data processing device 10 can recognize image information, and process related data to output a result. In this embodiment, the data processing device 10 is a computer, in which a program capable of identifying image information and processing related data is installed.
[0015] The image sensor 20 is electrically connected to the data processing device 10 and can transmit the acquired image information to the data processing device 10 . The image sensor 20 can be a charge-coupled device or a CMOS. A rotatable, lifting and horizontally telescopic support 22 is respectively arranged on both sid...
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The invention provides a lens testing device which includes: an image sensor; a light source module which is used to provide test stripe pattern needed by test lens; a test platform which is between image sensor and light source module and used for bearing the lens to be tested; a data processing device electrically connected to the image sensor; an image picking up device arranged at one side far away from the light source on the test platform and electrically connected to the data processing device, and used for obtaining the image of the lens to be tested born on the test platform and transferring to the data processing device before the image sensor tests the lens to be tested, so as to obtain contour or characteristic points of the lens to be tested, and to judge whether the lens is placed well. Said lens testing device can avoid damage of image sensor or lens caused by collision between the image sensor and the lens. Moreover, the invention also provides a lens test method.
Description
technical field [0001] The invention relates to a lens manufacturing process, in particular to a lens testing device and method. Background technique [0002] With the rapid development of multimedia technology, digital cameras, video cameras and mobile phones with cameras are more and more favored by consumers. While people put forward higher requirements for the image quality of objects shot by digital cameras, video cameras and mobile phone cameras, they are also demanding The demand for products such as digital cameras, video cameras and mobile phones with cameras is also increasing. [0003] In photographic devices such as digital cameras, video cameras and mobile phone cameras, the lens is an indispensable part. The image quality of objects captured by digital cameras, video cameras and mobile phone cameras mainly depends on the image quality of the lens. For the manufacture of lenses, the requirements and procedures for lens imaging quality lie in the lens testing p...
Claims
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IPC IPC(8): G03B43/00G01M11/02
Inventor YUAN KUNYI
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD