Video aiming infrared thermometerTechnical Field
The utility model belongs to the technical field of infrared thermometers, and particularly relates to a video aiming infrared thermometer.
Background
Infrared thermometers are based on the law of blackbody radiation, i.e. any object emits thermal radiation at any temperature, which is in the form of infrared rays invisible to the human eye, and the radiation energy is proportional to the temperature of the object, i.e. the higher the temperature, the greater the radiation energy. The infrared thermometer receives infrared radiation emitted by the surface of the object, converts the infrared radiation into an electric signal, processes the electric signal through an internal circuit and finally displays the temperature value of the surface of the object. The non-contact infrared thermometer is rapidly developed in technology, the performance is continuously improved, the application range is continuously enlarged, and the market share is increased year by year. In order to adapt to different application requirements, related technologies show infrared thermometers integrated with an eyepiece aiming function, such as the infrared thermometers integrated with the eyepiece aiming function disclosed in the prior patent applications 201120242390.5, 202111552091.6, 201010164390.8 and the like.
The existing infrared temperature measuring device integrated with the eyepiece aiming function aims at a target temperature measuring point through the eyepiece, but the existing infrared temperature measuring device integrated with the eyepiece aiming function has the obvious defects that when the target temperature measuring point is aimed through the eyepiece, the aiming effect is inconsistent and poor due to observation, vision difference and the like of an operator, the optimal objective focusing measurement effect cannot be achieved, in addition, the operation is inconvenient, the requirement on the professional degree of the operator is high, and the cost is high.
Disclosure of utility model
The utility model provides a video aiming infrared thermometer, which aims at solving the problems of inconsistent aiming effect, poor aiming effect and high professional requirements on aiming operation of an infrared temperature measuring device integrated with an eyepiece aiming function in the prior art.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows, a video aiming infrared thermometer comprises:
The infrared ray collecting module comprises a front flat mirror, a focusing objective lens, a perspective mirror and an infrared detector which are sequentially and optically coaxially arranged from front to back;
The eyepiece aiming module comprises a reflector and an eyepiece observing and aiming lens group which are sequentially and optically coaxially arranged from front to back, the eyepiece aiming module and the infrared ray collecting module are mutually arranged in parallel, the reflector and the transflector are oppositely arranged, light transmitted by the transflector reaches the infrared detector, and light reflected by the transflector reaches the reflector;
And the video aiming module comprises a spectroscope and a digital camera, the reflector, the spectroscope and the eyepiece aiming lens group are arranged in an optical coaxial mode, the digital camera and the spectroscope are arranged oppositely, light rays transmitted by the spectroscope reach the eyepiece aiming lens group, and light rays reflected by the spectroscope reach the digital camera.
Further, the front flat mirror and the focusing objective lens are arranged to be synchronously adjustable, and the synchronous adjustment is to synchronously move back and forth. The adjustment is convenient, and the reliability, stability and precision of the adjustment of the focusing objective lens are ensured.
Preferably, the digital camera is replaced by an LED light emitter and a laser emitter.
The video aiming infrared thermometer has the advantages that an operator can observe the digital camera to image the aiming target temperature measuring point to replace the traditional method that the operator aims at the target temperature measuring point through the ocular, the defects that the aiming effect is inconsistent and poor due to observation, vision difference and the like of the operator and the optimal objective focusing measurement effect is not achieved when the operator aims at the target temperature measuring point through the ocular are overcome, aiming of the target temperature measuring point is accurate and consistent, the requirement on the operator is not high, aiming operation is convenient, cost is greatly reduced, if the digital camera does not work abnormally, the aiming target temperature measuring point can be still carried out through the ocular observation lens group to serve as emergency operation, normal use of the video aiming infrared thermometer is ensured, namely the video aiming infrared thermometer skillfully maintains the traditional aiming target temperature measuring point through the ocular, ocular aiming and video aiming are skillfully combined, the integration degree is high, the aiming pointing effect is good, and the reliability of the video aiming infrared thermometer is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an optical path of a video aiming infrared thermometer according to the present utility model, wherein the direction of an arrow in the figure indicates the synchronous moving direction of a front flat mirror and a focusing objective lens;
In the figure, 1, an infrared collecting module, 11, a front flat mirror, 12, a focusing objective lens, 13, a perspective mirror, 14, an infrared detector, 2, an eyepiece aiming module, 21, a reflector, 22, an eyepiece aiming lens group, 3, a video aiming module, 31, a spectroscope, 32, a digital camera, 4 and a target temperature measuring point.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
As shown in fig. 1, a video sighting infrared thermometer, for convenience of description, in this embodiment, records the visual orientation of the operator. The video aiming infrared thermometer comprises an infrared collecting module 1, an ocular aiming module 2 and a video aiming module 3, wherein the infrared collecting module 1 comprises a front flat mirror 11, a focusing objective lens 12, a perspective mirror 13 and an infrared detector 14 which are arranged in sequence from front to back in an optical coaxial mode, the ocular aiming module 2 comprises a reflecting mirror 21 and an ocular sighting lens group 22 which are arranged in sequence from front to back in an optical coaxial mode, the ocular aiming module 2 and the infrared collecting module 1 are arranged in parallel with each other, the reflecting mirror 21 is arranged opposite to the perspective mirror 13, light transmitted through the perspective mirror 13 reaches the infrared detector 14, light reflected through the perspective mirror 13 reaches the reflecting mirror 21, the video aiming module 3 comprises a spectroscope 31 and a digital camera 32, the reflecting mirror 21, the spectroscope 31 and the ocular sighting lens group 22 are arranged in optical coaxial mode, and the digital camera 32 and 31 are arranged opposite to each other, and the light transmitted through the spectroscope 31 reaches the ocular sighting lens group 22 and passes through the digital camera 32.
In order to ensure convenience, reliability, stability, and accuracy of adjustment of the focus objective lens 12, in the present embodiment, the front flat mirror 11 and the focus objective lens 12 are provided to be adjustable in synchronization, which is to move in synchronization back and forth.
The digital camera 32 of the present embodiment may be replaced with an LED light emitter or a laser light emitter. Correspondingly, the digital camera acquires and outputs video images, or the LED light source is emitted by the LED light emitter to aim in a projection way, or the laser light source is emitted by the laser light emitter to aim in a projection way.
The aiming process of the video aiming infrared thermometer is as follows:
The video aiming infrared thermometer is firstly installed at a preset position, then the target temperature measuring point 4 displayed by the digital camera 32 is observed, and simultaneously the front flat mirror 11 and the focusing objective lens 12 are synchronously moved back and forth until the digital camera displays the aimed target temperature measuring point 4. The operator aims the target temperature measuring point 4 through observing the definition of the image of the digital camera 32 and the central circular ring, replaces the existing operator to aim the target temperature measuring point 4 through the ocular, and overcomes the defects that the aiming effect is inconsistent and poor due to the observation, vision difference and the like of the operator when the operator aims the target temperature measuring point 4 through the ocular, and the optimal objective focusing measurement effect is not achieved.
If the digital camera 32 is abnormally not operated, the sighting target temperature measuring point 4 can be still carried out through the eyepiece sighting lens group 22 as emergency operation, so that the normal use of the video sighting infrared thermometer is ensured, namely the video sighting infrared thermometer skillfully retains the existing sighting target temperature measuring point 4 through the eyepiece, the eyepiece sighting and the video sighting are skillfully combined, the integration degree is high, the sighting effect is good, and the reliability of the video sighting infrared thermometer is greatly improved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.