Method for compensating depth of field of rotational variable multiple optical system
A technology of optical system and compensation method, applied in optics, optical components, installation, etc., can solve problems such as complex background and single target, and achieve the effect of simple operation, low cost of use, and easy realization
Inactive Publication Date: 2015-05-06
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
View PDF5 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the existing rotary zoom optical system depth compensation method is only applicable to the environment of manual intervention and the environment with complex background and single target, thus proposing a rotary zoom optical system depth compensation device and method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.
[0019] An embodiment of a depth-of-field compensation device for a rotational variable magnification optical system of the present invention
[0020] Such as figure 1 As shown, the depth of field compensation device includes a depth of field compensation lens, a servo motor, a control unit, and a GPS data receiving unit. The depth of field compensation lens is used to place the position between the fixed lens group and the detector in the rotary zoom optical system, and The optical axis of the depth of field compensation lens is coaxial with the optical axis of the rotary zoom optical system. The depth of field compensation lens is installed on the slideway. The servo motor drives the movement of the depth of field compensation lens by controlling the rotation of the roller. The output terminal of the control unit controls the con...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a device and a method for compensating the depth of field of a rotational variable multiple optical system. The device comprises a depth of field compensating lens, a driving unit and a control unit, wherein the depth of field compensating lens is arranged between a fixed lens group and a detector in the rotational variable multiple optical system; an optical axis of the depth of field compensating lens is coaxial with an optical axis of the rotational variable multiple optical system; an object distance range of the rotational variable multiple optical system is divided into different sections; a lens compensating travel is divided into gears according to each section of object distance range; and the system automatically moves the compensating lens to a corresponding gear through a control motor according to object distance data provided by a GPS (Global Positioning System) so as to accomplish the compensation. The device is simple to operate, convenient to use, easy to realize and low in cost as the conventional resource, i.e. a GPS positioning system, is utilized sufficiently.
Description
technical field [0001] The invention relates to a depth of field compensation device and method for a rotational zoom optical system. Background technique [0002] The implementation methods of the infrared field of view zoom optical system at home and abroad are divided into radial cut-in method, axial movement method and rotary zoom method. The small field of view of the rotary zoom optical system with obvious advantages often has the problem of depth of field compensation in the use environment with object distance requirements. At present, there are two methods of depth of field compensation for this type of optical system at home and abroad: 1. Manual Focusing method, that is, by manually judging the image quality, if the image quality is not good, manually adjust the focus until the image is clear; second, the automatic focus detection method, that is, by capturing several features of the scene and imaging on the photosensitive surface, through image processing Distin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00G02B7/04
Inventor 郭小青
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC