Apparatus and method for measuring the parallelism between the emitting optical axis of converging laser and the tracking visual axis
A technology of laser emission and parallelism, which is applied in the field of optical detection, can solve problems such as unsuitable coaxial optical systems, and achieve the effects of avoiding changes in laser focal length, accurate measurement, and avoiding blocking the optical path
Active Publication Date: 2020-08-14
HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It can be realized by moving the system under test or the reentry system to make the reentry distance of the emitted laser equal to the focal length of the laser, or adding focusing elements or modules to the reentry system, but the former requires long-distance high-precision distance measurement, and the latter is not suitable for coaxial optics system
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
[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] The invention provides a device and method for measuring the parallelism between the optical axis of converging laser emission and the tracking visual axis. The light source is composed of a cross reticle located at the focal point of an off-axis parabolic reflector, and a photodetector located near the conjugate focus of the off-axis ...
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 discloses a device and a method for measuring parallelism of a convergent laser emission optical axis and a tracking visual axis. The device comprises an off-axis parabolic mirror, a plane reflection sampling mirror, a photodetector, a cross reticle, and the like, wherein the cross reticle is located at the focus of the off-axis parabolic mirror; the photodetector is located near a conjugate focal point of the off-axis parabolic mirror reflected by the plane reflection sampling mirror; after the tracking visual axis is corrected by the imaging position of the cross reticle to beparallel to the optical axis of the parabolic mirror, a convergent laser beam is focused by the off-axis parabolic mirror and attenuated by the plane reflection sampling mirror; the photodetector is moved along the optical axis, the photodetector is enabled to sense light, a position with the smallest photosensitive area is taken as a focal plane position of the laser, the focal length of the parabolic mirror is subtracted from the moving distance of the photodetector to obtain an actual focal length of the laser, thereby calculating the parallelism of the optical axis. Accurate measurement ofthe parallelism of the convergent laser emission optical axis is realized, adaptability is strong and operation is simple.
Description
technical field [0001] The invention relates to the technical field of optical detection, in particular to a device and a method for measuring the parallelism of a converging laser emitting optical axis and a tracking visual axis. Background technique [0002] With the maturity of related technologies, laser weapons and equipment are gradually becoming engineered. Laser weaponry includes a multi-axis optical system to detect, measure, track, and strike targets. The high-energy laser passes through the laser emission system to form a converging laser, which is focused at the target attack point, thereby damaging the target. In order to realize the precise focusing of the high-energy laser beam on the attack point of the tracking target along the tracking visual axis, the parallelism of the optical axis must be corrected. [0003] Most of the methods described in the current published literature and patents are suitable for measuring the parallelism of the optical axis of co...
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): G01B11/26
CPCG01B11/26
Inventor 罗义鸣侯鹏程
Owner HUBEI SANJIANG AEROSPACE HONGFENG CONTROL