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An optical lens and compact technology, applied in the field of optical lens, can solve the problems of large overall lens volume and total optical length, etc., and achieve the effects of improving production yield, ensuring high brightness, and reducing imaging chromatic aberration
Active Publication Date: 2019-05-10
惠州市信华光学技术有限公司
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Problems solved by technology
The total optical length of the lens in the prior art is too long, and the diameter of the front port of the lens is too large, resulting in too large overall volume, which cannot meet the market demand
Method used
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Embodiment 1
[0061] Such as figure 1 As shown, it is a schematic structural view of the compact optical lens according to Embodiment 1 of the present invention.
[0062] A compact optical lens, which includes an aperture surface S1 arranged sequentially from the object side; the first lens unit G1 and the second lens unit G2 are combined into a cemented lens L1, including a second surface S2, a third surface S3, a second surface Four sides S4; the third lens unit G3, including the fifth side S5, the sixth side S6; the fourth lens unit G4 and the fifth lens unit G5 combined into a cemented lens L2, including the seventh side S7, the eighth side S8, the sixth side Nine surfaces S9; sixth lens unit G6, including tenth surface S10, eleventh surface S11; optical filter, including twelfth surface S12, thirteenth surface S13; imaging surface Image.
[0063] The compact optical lens is divided into the first group and the second group, the first group includes the first lens unit G1, the second l...
Embodiment 2
[0072] Such as Figure 5 As shown in , it is a schematic structural view of the compact optical lens of Example 2 of the present invention.
[0073] A compact optical lens, which includes a diaphragm surface S1 arranged sequentially from the object side; the first lens unit G1 and the second lens unit G2 are combined into a first cemented lens L1, including a second surface S2 and a third surface S3 , the fourth surface S4; the third lens unit G3 and the fourth lens unit G4 are combined into a second cemented lens L2, including the fifth surface S5, the sixth surface S6, and the seventh surface S7; the fifth lens unit G5, including the eighth Surface S8, ninth surface S9; sixth lens unit G6, including tenth surface S10, eleventh surface S11; filter, including twelfth surface S12, thirteenth surface S13; imaging surface Image.
[0074] The compact optical lens is divided into a first group and a second group, the first group includes a first lens unit G1, a second lens unit G2...
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Abstract
The invention discloses a compact optical lens. The lens includes a lens group, an aperture and an IR filter. The aperture is located in front of the lens group, and the IR filter is located in the lens group. the rear; the lens group includes six lens units, and the six lens units include at least two cemented lens groups and one glass aspherical lens. The optical lens of this invention achieves large aperture, high brightness and high-definition resolution while greatly reducing the total optical length of the lens; and includes at least two cemented lenses and one glass aspherical lens. The arrangement of the two cemented lenses can effectively reduce the imaging quality of the lens. Chromatic aberration gives the lens excellent color reproduction capabilities; aspherical glass can effectively shorten the total optical length of the lens, compensate and correct spherical aberration, field curvature and other aberrations, so that the center and edge imaging of the lens can achieve high-definition effects; set the diaphragm in the lens group The front not only ensures the high brightness of the lens, but also reduces the lens tolerance sensitivity, effectively improving the production yield.
Description
technical field [0001] The invention relates to the field of optical lenses, in particular to a compact optical lens. Background technique [0002] Optical lens is an essential part of machine vision system, which directly affects the quality of imaging. This lens has been widely used in various fields. With the advancement of technology and the continuous improvement of market demand, the automotive ADAS field requires optical lenses to have a large aperture and high resolution, and at the same time require a more compact size, so that they can be used in some locations with limited installation size, such as near the car rearview mirror. etc., while improving the overall aesthetics. The total optical length of the lens in the prior art is too long, and the diameter of the front port of the lens is too large, resulting in too large overall volume, which cannot meet the market demand. Contents of the invention [0003] The purpose of the present invention is to overcome ...
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Application Information
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