Optical imaging method, optical imaging system and capsule type medical equipment
An optical imaging system and optical imaging technology, applied in the fields of medical science, endoscopy, surgery, etc., can solve the problem of not considering the optical performance of the variable focus lens unit, etc., and achieve the effect of a large focus range
Active Publication Date: 2017-02-08
成都英赛景泰光电技术有限公司
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[0005] The present invention provides an optical imaging method, an optical imaging system and a capsule medical device to solve the problem in the prior art that the optical performance of the variable focus lens unit is not considered to be maximized
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[0050] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that, if there is no conflict, the embodiments of the present invention and various features in the embodiments can be combined with each other, and all are within the protection scope of the present invention.
[0051] See figure 1 , figure 1 It is a schematic flow chart of the optical imaging method of the preferred embodiment of the present invention. The optical imaging method of the present invention mainly comprises the following steps:
[0052] S10 Obtain the maximum positive refractive power P of the zoom lens unit + max, maximum negative focal power P - max and the focal power Pmain of the main lens unit and the optical center distance d between the main lens unit and the variable focus lens unit; it should be noted that the focal power distribution range of the variable focus lens unit is [P - max,P +max], and the opti...
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The invention discloses an optical imaging method, an optical imaging system and capsule type medical equipment. The optical imaging method comprises the following steps of S10, obtaining the maximum positive focal power P<+>max and the maximum negative focal power degree P<->max of the variable-focus lens unit, the focal power Pmain of the main lens unit and the optical center distance d from the main lens unit to the variable-focus lens unit; S20, according to the preset minimum target distance, obtaining the maximum targeted distance of the variable-focus lens unit under the condition of the maximum negative focal power; S30, performing focusing in the minimum targeted distance and the maximum targeted distance range. The invention also provides the optical imaging system based on the optical imaging method, and the capsule type medical equipment with the optical imaging system. The optical performance of the variable-focus lens unit can be sufficiently used, and the high imaging quality is obtained.
Description
technical field [0001] The invention relates to the field of imaging technology, in particular to an optical imaging method, system and capsule medical equipment. Background technique [0002] Currently common variable focus lens units such as single liquid crystal lens or liquid crystal microlens array, because the optical characteristics of this type of variable focus lens unit are basically fixed when the device is manufactured, because the above variable focus lens unit can be controlled by voltage Form convex or concave lenses, yet manufacturers rarely consider maximizing the performance of variable focus lens units in imaging system designs. [0003] With the acceleration of the pace of modern life, digestive tract diseases have become a common occurrence for people. Currently, electronic endoscopes with intubation tubes or medical wireless endoscopes (capsule endoscopes) are used clinically to diagnose gastrointestinal diseases. Both the electronic endoscope and the...
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Login to View More IPC IPC(8): A61B1/04A61B1/06A61B1/00
CPCA61B1/00188A61B1/041A61B1/06
Inventor 李其昌
Owner 成都英赛景泰光电技术有限公司