Optical lens with focal length of 19mm
A technology of optical lens and focal length, which is applied in the field of optical lens, can solve the problems that the optical path cannot be used universally, increase the difficulty of optical lens production, etc., and achieve the effect of meeting the requirements of light use and improving applicability
Pending Publication Date: 2017-10-27
FOSHAN BEICHUANG PHOTOELECTRIC TECH
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Problems solved by technology
Optical paths required by different pixels are used in various testing equipment and cameras, but most of the optical paths in the testing equipment and the optical paths in the camera cannot be used in common, which increases the difficulty in the production of optical lenses
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[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0012] refer to figure 1 : An optical lens with a focal length of 19mm, including the first concentrating group 1, the second concentrating group 2, the diverging group 3 and the image plane 4 arranged from left to right, and the center lines are on the same straight line, and the external light passes through in sequence The first condensing group 1, the second condensing group 2 and the diverging group 3 act on the image plane, the distance between the first condensing group 1 and the second condensing group 2 is 11.05mm, and the second condensing group 2 The distance from divergent group 3 is 4.63mm. Wherein, the adjustable focal length of the optical path structure is 19 mm when in use, which facilitates the adjustment of the focal length of the optical path structure when inspecting or photographing products at different distances, and meets the require...
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The invention discloses an optical lens with a focal length of 19mm. The optical lens comprises a first condensation group, a second condensation group, a divergence group and an image surface which are arranged in turn from left to right and the center lines of which are on a same straight line; external rays sequentially pass through the first condensation group, the second condensation group and the divergence group before acting on the image surface; the distance between the first condensation group and the second condensation group is 11.05mm; the distance between the second condensation group and the divergence group is 4.63mm. External incident light rays can be condensed for twice by the first condensation group and the second condensation group, and the requirement on the light ray intensity is met; then the light rays are diverged by the divergence group so as to uniformly act on the image surface, and the requirements on light rays and pixels are met; meanwhile, since the distance between the first condensation group and the second condensation group is 11.05mm and the distance between the second condensation group and the divergence group is 4.63mm, the optical lens with the focal length of 19mm can be applied to detection equipment or photographing cameras, the using requirements of light rays are met, and the applicability is improved.
Description
technical field [0001] The invention belongs to an optical path, in particular to an optical lens with a focal length of 19mm. Background technique [0002] With the development of science and technology, people's requirements for various products are gradually diversified. The optical paths required by different pixels are used in various testing equipment and cameras, but most of the optical paths in the testing equipment and the optical paths in the camera cannot be used in common, which increases the difficulty in the production of optical lenses. Contents of the invention [0003] The object of the present invention is to provide an optical lens with a focal length of 19mm, which can solve at least one of the above problems. [0004] According to one aspect of the present invention, there is provided an optical lens with a focal length of 19mm, which includes a first concentrating group, a second concentrating group, a diverging group and an image surface, the exter...
Claims
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Login to View More IPC IPC(8): G02B13/00
CPCG02B13/0015
Inventor 肖顺东覃亚
Owner FOSHAN BEICHUANG PHOTOELECTRIC TECH