CN-224203424-U - Optical component for distance measurement and multispectral imaging linkage

CN224203424UCN 224203424 UCN224203424 UCN 224203424UCN-224203424-U

Abstract

The utility model relates to the technical field of optics, and discloses an optical component for linkage of distance measurement and multispectral imaging, which is a foundation for integrating multispectral imaging and distance measurement into the same system. The utility model comprises a second B/S beam splitter located right above a first B/S beam splitter, a laser transmitter located on the left side of the first B/S beam splitter, a laser radar detector and a CCD located on the transmission direction and the reflection direction of the second B/S beam splitter respectively, a tunable filter arranged between the CCD and the second B/S beam splitter, wherein the detection wavelength of the laser radar detector is matched with the wavelength of the laser transmitter, a lens which is coaxial with the laser transmitter and the first B/S beam splitter and can focus is reserved on the right side of the first B/S beam splitter, optical paths among the first B/S beam splitter, the laser transmitter, the CCD and the laser radar detector are equal, and communication interfaces connected with a linkage controller are reserved on each electric control part respectively.

Inventors

DAI LINMAO
LI XIAOCHUN

Assignees

深圳麓邦光学技术股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250624

Claims (3)

1. The optical component for the ranging and multispectral imaging linkage is characterized by comprising a laser radar detector, a CCD for imaging an external target, a laser emitter, a first B/S beam splitter and a second B/S beam splitter; The second B/S beam splitter is positioned right above the first B/S beam splitter, and two beam splitting surfaces corresponding to the two beam splitters are parallel or orthogonal; the laser transmitter is positioned at the left side of the first B/S beam splitter, and the optical axis direction of the laser transmitter forms an angle of 45 degrees with the beam splitting surface of the first B/S beam splitter; the laser radar detector and the CCD are respectively positioned in the transmission direction and the reflection direction of the second B/S beam splitter; A tunable filter which only allows the designated wavelength spectrum to pass through is arranged between the CCD and the second B/S beam splitter; The laser radar detection device comprises a laser radar detector, a first B/S beam splitter, a lens, a CCD and a radar detector, wherein the detection wavelength of the laser radar detector is matched with the wavelength of the laser transmitter, the right side of the first B/S beam splitter is reserved with the lens which is coaxial with the laser transmitter and the first B/S beam splitter and can be used for focusing, the optical paths of the first B/S beam splitter and the laser transmitter are equal to each other, so that the photosensitive surfaces of the CCD and the laser radar detector are synchronously adjusted to the focal plane of the lens in the use process, and communication interfaces which are connected with a linkage controller are reserved respectively for the CCD, the laser transmitter, the tunable filter and the radar detector.
2. The optical assembly for range finding and multispectral imaging linkage of claim 1, further comprising means connected to the linkage controller to effect external light replenishment.
3. The optical module for ranging and multispectral imaging linkage according to claim 1 or 2, wherein the CCD is a CCD for visible light imaging, and the laser emitter is an infrared light source.

Description

Optical component for distance measurement and multispectral imaging linkage Technical Field The utility model relates to the technical field of optics, in particular to an optical component for ranging and multispectral imaging linkage. Background Multispectral imaging is the separation of electromagnetic radiation reflected or emitted by an object into a plurality of discrete and specifically selected bands using spectroscopic techniques, and then the intensity information of each band is recorded by a detector, ultimately forming a three-dimensional data cube containing spatial information and limited but critical spectral information. This enables it to reveal spectral features of objects that cannot be seen in standard RGB imaging, thereby playing an important role in numerous scientific and industrial areas. For example, with the advent of machine vision, the posture and health of living subjects can be monitored based on multispectral imaging. In partial specific scenes, the multi-spectrum imaging and the ranging are linked, so that the effects of saving energy, screening effective data in a mode of mutually checking two paths of data and the like can be realized. However, in the existing method for acquiring the two paths of data, data acquisition is mostly performed through two independent systems, and when the data are subjected to association analysis, data alignment is still required through information such as a time stamp, so that the cost of the two paths of data cooperation is too high and the accuracy of time alignment is limited. Disclosure of utility model The utility model aims to disclose an optical component for linkage of distance measurement and multispectral imaging, which is a foundation for integrating multispectral imaging and distance measurement into the same system. In order to achieve the aim, the optical component for the ranging and multispectral imaging linkage disclosed by the invention comprises a laser radar detector, a CCD for imaging an external target, a laser transmitter, a first B/S beam splitter and a second B/S beam splitter; The second B/S beam splitter is positioned right above the first B/S beam splitter, and two beam splitting surfaces corresponding to the two beam splitters are parallel or orthogonal; the laser transmitter is positioned at the left side of the first B/S beam splitter, and the optical axis direction of the laser transmitter forms an angle of 45 degrees with the beam splitting surface of the first B/S beam splitter; the laser radar detector and the CCD are respectively positioned in the transmission direction and the reflection direction of the second B/S beam splitter; A tunable filter which only allows the designated wavelength spectrum to pass through is arranged between the CCD and the second B/S beam splitter; The laser radar detection device comprises a laser radar detector, a first B/S beam splitter, a lens, a CCD and a radar detector, wherein the detection wavelength of the laser radar detector is matched with the wavelength of the laser transmitter, the right side of the first B/S beam splitter is reserved with the lens which is coaxial with the laser transmitter and the first B/S beam splitter and can be used for focusing, the optical paths of the first B/S beam splitter and the laser transmitter are equal to each other, so that the photosensitive surfaces of the CCD and the laser radar detector are synchronously adjusted to the focal plane of the lens in the use process, and communication interfaces which are connected with a linkage controller are reserved respectively for the CCD, the laser transmitter, the tunable filter and the radar detector. Preferably, the assembly of the utility model further comprises a device connected with the linkage controller to realize external light supplementing. Optionally, the CCD is a CCD facing visible light imaging, and the laser emitter is an infrared light source. The utility model has the following beneficial effects: 1. The first B/S beam splitter is equal to the optical path between the laser emitter, the CCD and the laser radar detector, and focusing of the lens of the common optical axis of the laser emitter and the first B/S beam splitter is reserved on the right side of the first B/S beam splitter in the use process, so that the photosensitive surfaces of the CCD and the laser radar detector can be synchronously adjusted to the focal plane of the lens at one time, the operation convenience is improved, and meanwhile, the response consistency of the CCD and the laser radar detector in the process of synchronously acquiring two paths of data scenes required by linkage control is ensured in physical conditions. 2. The user can configure and replace the lens according to the needs, so that the maintenance is convenient, and the flexibility is improved. The utility model will be described in further detail with reference to the accompanying drawings. Drawings The accompanying drawings, whic