Multi-optical-axis system direction consistency testing device
By designing a multi-optical-axis system orientation consistency testing device, and utilizing components such as a fixed base, a movable slide, and a telephoto lens group, the problem of optical axis deviation detection was solved, and effective detection of optical axis consistency was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2026-03-27
AI Technical Summary
Existing technologies are insufficient to effectively detect optical axis deviations in multi-axis optical systems, making it difficult to guarantee optical axis consistency during actual processing.
Design a multi-optical-axis system orientation consistency testing device, including a fixed base, a movable slide, a telephoto lens group and a reflector, etc. By adjusting the position and focus alignment of each component, the optical axis offset is measured using a reticle semi-transparent screen, and the optical axis deviation is calculated.
It enables effective detection of deviations between optical axes in a multi-axis optical system, ensuring optical axis consistency.
Smart Images
Figure CN121740404A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a kind of multi-optical axis system direction consistency test device. BACKGROUND
[0002] For multi-optical axis optical system, such as laser ranging system, active infrared monitoring system etc., its optical axis must keep consistency.Although it is completely ideal condition in the process of theoretical design, but actual processing will produce unpredictable deviation, therefore, it is necessary to design a kind of test device capable of detecting optical axis consistency. SUMMARY
[0003] The purpose of the present application is to provide a kind of multi-optical axis system direction consistency test device for detecting optical axis consistency.
[0004] In order to achieve the above purpose, the technical scheme provided by the present application is as follows: a kind of multi-optical axis system direction consistency test device, comprising: fixed base, movable sliding seat one, movable sliding seat two, long-focus lens group one, long-focus lens group two, mirror one, mirror two and half-transparent screen with division line;The fixed base has base sliding slot;The movable sliding seat one and the movable sliding seat two are all along the base sliding slot sliding;The movable sliding seat one has sliding seat sliding slot one perpendicular to the base sliding slot;The movable sliding seat two has sliding seat sliding slot two parallel to the sliding seat sliding slot one;The long-focus lens group one and the mirror one are all arranged in the sliding seat sliding slot one;The long-focus lens group one is movable.The long-focus lens group one can slide along the sliding seat sliding slot one.The mirror one is fixed.The long-focus lens group two and the mirror two are all arranged in the sliding seat sliding slot two;The long-focus lens group two is movable.The long-focus lens group two can slide along the sliding seat sliding slot two;The mirror two is fixed;The half-transparent screen with division line is fixed between the mirror one and the mirror two;The long-focus lens group one, the mirror one, the half-transparent screen with division line, the mirror two and the long-focus lens group two constitute U type light path.
[0005] Compared with the prior art, the present application has at least the following beneficial effects: the present device can test the deviation between each optical axis in multi-optical axis optical system. BRIEF DESCRIPTION OF DRAWINGS
[0006] Fig. 1 It is the structure perspective view of the embodiment of the present application.
[0007] Fig. 2 It is the structure top view of the embodiment of the present application. DETAILED DESCRIPTION
[0008] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. It should be noted that these descriptions of embodiments are intended to aid in understanding the invention and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0009] See Figs. 1-2 The figure shows a multi-optical-axis system orientation consistency testing device. The multi-optical-axis system orientation consistency testing device includes: a fixed base 1, a movable slide 1 2, a movable slide 2 3, a telephoto lens group 1 4, a telephoto lens group 2 5, a reflector 1 6, a reflector 2 7, and a semi-transparent screen with reticle lines 8, etc.
[0010] The fixed base 1 has a base groove 11. Both the first movable slide 2 and the second movable slide 3 slide along the base groove 11. The first movable slide 2 has a slide groove 21 perpendicular to the base groove 11. The second movable slide 3 has a slide groove 31 parallel to the slide groove 21. The first telephoto lens group 4 and the first reflector 6 are both mounted on the slide groove 21. The first telephoto lens group 4 is movable and can slide along the slide groove 21. The first reflector 6 is fixed. The second telephoto lens group 5 and the second reflector 7 are both mounted on the slide groove 31. The second telephoto lens group 5 is movable and can slide along the slide groove 31. The second reflector 7 is fixed. The reticle-marked translucent screen 8 is fixed between the first reflector 6 and the second reflector 7. The telephoto lens group 4, the reflector 6, the semi-transparent screen with reticle 8, the reflector 7, and the telephoto lens group 5 form a U-shaped optical path. By adjusting the positions of the movable slide block 2 and the movable slide block 3 on the fixed base 1, and the positions of the telephoto lens group 4 in the slide block groove 21 and the telephoto lens group 5 in the slide block groove 31, the focal point of the telephoto lens group 4 and the telephoto lens group 5 is ensured to fall on the semi-transparent screen with reticle 8.
[0011] In specific implementation, the angles between the first reflector 6 and the second reflector 7 and the first slide groove 21 and the second slide groove 31 are +45° and -45°, respectively.
[0012] In specific implementation, the semi-transparent screen 8 with reticle is parallel to the slide groove 21 and the slide groove 31.
[0013] In practice, the focal lengths of the first telephoto lens group 4 and the second telephoto lens group 5 are generally between ten and several hundred millimeters.
[0014] In practice, referring to Fig. 2 , by adjusting the position of the movable slide No. 2 and the movable slide No. 3 on the fixed base No. 1, the entrance of the long-focus lens group No. 4 and the long-focus lens group No. 5 are respectively aligned with the two optical outlets of the multi-optical-axis optical system to be tested. Then, by adjusting the position of the long-focus lens group No. 4 and the long-focus lens group No. 5 along the slide slot No. 21 and the slide slot No. 31 respectively, the low-brightness light source is lit at the original focal point of the multi-optical-axis optical system to be tested, and the focal point of the light emitted after passing through the mirror No. 6 and the mirror No. 7 is located on the semi-transparent screen with a scale line. The position offset of the two focal points is observed to measure the optical axis offset of the multi-optical-axis optical system to be tested. By measuring the offset Δx through the scale line, assuming that the focal length of the long-focus lens group No. 4 is f1 and the focal length of the long-focus lens group No. 5 is f2, the deviation of the optical axes of the two is calculated according to the following formula, and all units are in mm.
[0015] Δθ = arctan (2 * Δx / (f1 + f2)).
[0016] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A device for testing the directional consistency of a multi-optical-axis system, characterized in that, include: The system comprises a fixed base, two movable slides, a telephoto lens group 1, a telephoto lens group 2, a reflector 1, a reflector 2, and a semi-transparent screen with reticle lines. The fixed base has a base groove. Both movable slides 1 and 2 slide along the base groove. Movable slide 1 has a slide groove perpendicular to the base groove. Movable slide 2 has a slide groove parallel to the slide groove 1. Both telephoto lens group 1 and reflector 1 are mounted in slide groove 1. The telephoto lens group 1 is movable and can slide along slide groove 1. Reflector 1 is fixed. Both telephoto lens group 2 and reflector 2 are mounted in slide groove 2. The telephoto lens group 2 is movable. The second telephoto lens group can slide along the second sliding groove of the slide block; the second reflector is fixed; the semi-transparent screen with reticle is fixed between the first reflector and the second reflector; the first telephoto lens group, the first reflector, the semi-transparent screen with reticle, the second reflector and the second telephoto lens group form a U-shaped optical path.
2. The multi-optical-axis system orientation consistency testing device according to claim 1, characterized in that, The angles between the first reflector and the second reflector and the first and second slide grooves are +45° and -45°, respectively; the semi-transparent screen with reticle lines is parallel to the first and second slide grooves.