CN219533995U - Weak laser spot display screen device - Google Patents

Abstract

A weak laser facula display screen device is characterized in that: the device comprises a filtering light-transmitting lens, a photosensitive sensor array, a display array and an accessory circuit controller; the imaging device is characterized in that photosensitive sensing units forming the photosensitive sensing array and imaging units forming the imaging array are in one-to-one correspondence with each other; the laser beam enters the device after the spectral components of the background wave band are filtered by the filtering lens, the laser beam is incident on the photosensitive sensor array, and the photosensitive sensor units are triggered, so that the imaging units corresponding to the photosensitive sensor units one by one are triggered to display or emit light, and the imaging array is locally displayed or emits light; the one-to-one corresponding photosensitive sensing units and the imaging units are in space XYZ coordinates, and are characterized in that X, Y coordinates are the same or Z coordinates are the same. The device can display invisible weak laser spots in a visible light mode, and has the characteristics of higher sensitivity and wider detection range compared with the mode of a current universal conversion sheet.

Description

Weak laser spot display screen device

Technical Field

The utility model relates to a light beam position display device capable of tracing weak laser in real time, which can realize on-line position display of the weak laser in a broadband spectrum range and can be conveniently used in an application environment of on-line light path adjustment.

Background

In the laser path debugging process, particularly in the weak laser beam debugging process of invisible wave bands, a conversion sheet and an infrared detector are generally used for tracking and debugging the position of the laser beam, the conversion sheet is small in size and convenient to carry and use, the frequency spectrum of the laser of a monitoring part is generally converted into the visible wave bands by using an up-conversion material, but the conversion efficiency is low, the sensitivity to the laser can be reduced along with the reduction of energy density, and meanwhile, the sensitivity is limited by the response spectrum of the material, so that the universality is poor; in use, the infrared observer is inconvenient if the light path is required to be regulated at the same time, and the price of the infrared observer is relatively high; in use, both of these modes typically require operation under darkroom conditions.

Disclosure of Invention

The utility model provides a device capable of displaying the position of a light beam for real-time tracking of broadband weak laser, which comprises a filtering lens, a photosensitive sensor array, a development array and an accessory circuit controller, wherein the filtering lens is arranged on the optical sensor array; in the device, the position of the laser beam is controlled by the photosensitive sensor unit of the photosensitive sensor array at the response position to control the brightness or intensity of the display unit of the display array at the corresponding position, so as to be attached with an electronic controller to adjust the response sensitivity. The device can realize on-line position display of weak laser in a wide spectrum range by utilizing the characteristic of high sensitivity of a photosensitive sensing unit of a photosensitive sensor array in a wide spectrum range, can be widely used in an environment needing on-line adjustment of weak excitation, has small volume and low cost, and can carry out light path adjustment on weak laser without a darkroom by matching with a specific coating film of a filtering transmission lens 1.

The technical solution of the utility model is as follows:

a weak laser facula display screen device is characterized in that: the device comprises a filtering light-transmitting lens, a photosensitive sensor array, a display array and an accessory circuit controller; the imaging device is characterized in that photosensitive sensing units forming the photosensitive sensing array and imaging units forming the imaging array are in one-to-one correspondence with each other; the laser beam enters the device after the spectral components of the background wave band are filtered by the filtering lens, the laser beam is incident on the photosensitive sensor array, and the photosensitive sensor units are triggered, so that the imaging units corresponding to the photosensitive sensor units one by one are triggered to display or emit light, and the imaging array is locally displayed or emits light; the one-to-one corresponding photosensitive sensing units and the imaging units are in space XYZ coordinates, and are characterized in that X, Y coordinates are the same or Z coordinates are the same.

Preferably, the filtering lens is a transmission flat plate, and weak laser is incident on the photosensitive sensor array after passing through the filtering lens.

Preferably, the filtering lens is a converging lens, and weak laser is incident on the photosensitive sensor array after passing through the filtering lens.

The filtering light-transmitting mirror is coated with a film, and can be replaced according to a specific test light source, and the film is characterized by total transmission in the weak laser spectrum band range and total reflection in an unwanted spectrum region.

The auxiliary circuit controller is used for controlling the intensity or brightness of the display units corresponding to the photosensitive sensing units one by one according to the light intensity received by the photosensitive sensing units.

Preferably, the number of the photosensitive sensing units or the developing units is distributed in unit square centimeter and is not less than 9.

Preferably, the weak laser spot display screen device is characterized in that the space XYZ coordinates and X, Y coordinates of the photosensitive sensing units and the display units which are in one-to-one correspondence are the same; i.e. X, Y coordinates of the imaging units which are arranged at positions on the back of the photosensitive sensing units corresponding to the imaging units one by one and are arranged at positions which are different from each other by not more than 1mm.

Preferably, the weak laser spot display screen device is characterized in that the space XYZ coordinates and the Z coordinates of the photosensitive sensing units and the display units which are in one-to-one correspondence are the same; i.e. the imaging units are arranged at the same side positions of the photosensitive sensing units which are in one-to-one correspondence with the imaging units; and X, Y coordinates at two positions which are different from each other by not more than 5mm.

The display screen device with the weak laser light spots is characterized in that the display unit is a liquid crystal display unit, the display unit is an LED display unit, and optionally, the display unit is a digital display unit or optionally, the display unit is an ink screen display unit.

The weak laser spot display screen device is characterized in that the photosensitive sensor is a photosensitive resistor or a photosensitive diode or a photosensitive three-stage tube.

Or, the core of the display screen device is a module formed by a photosensor (or photoresistor) array and an electric diode array, each unit in the array group is formed by connecting a photosensor (or photoresistor) and an electric diode in series, the photosensor (or photoresistor) is triggered by the laser beam at the corresponding position of the array to control the luminous brightness of the photodiodes (visible light) at the same position, the higher the energy density is, the higher the brightness is, the response sensitivity is regulated by a matching resistor, and the luminous positions of the photodiodes are displayed on the display screen.

The filtering lens can filter the light beam entering the device in a film plating mode, and can realize the condition of on-line observation and adjustment of the light path without the condition of a darkroom. The device can realize the on-line position real-time display of weak laser in a broadband spectrum range by utilizing the characteristic of high sensitivity of a photosensitive sensor (or a photosensitive resistor) in a wider spectrum range.

The utility model has the technical effects that:

the device can replace the special conversion sheet commonly used at present.

The device can be widely applied to various laser devices for absorbing the residual laser in the light path, and is particularly suitable for application.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model in a transmission-type observation mode;

FIG. 2 is a schematic plan view of another embodiment of the present utility model;

FIG. 3 is a schematic diagram of an accessory circuit controller of the present utility model;

FIG. 4 is a schematic diagram of the structure of the present utility model implemented in a same-side viewing mode;

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

Example 1: transmission type observation mode implementation of broad spectrum weak laser display screen device

FIG. 1 is a schematic diagram of a transmission type display embodiment of the present utility model. Comprises a filtering lens 1, a photosensitive sensor array 2, a photodiode array 3 and an accessory circuit thereof, and a tracing screen 4. In the use case, the incident laser enters the device after the spectral components of the background wave band are filtered by the filter lens 1, and the unit of the laser beam falling on the photosensitive sensor array 2 is triggered, so that the photodiodes 3 at adjacent corresponding positions are conducted to emit light, and the position information of the laser beam is displayed on the tracing screen 4. In this embodiment, the tracing screen may be in a default state, and the photodiode emits light directly to give out the position information. In this embodiment, the XYZ coordinates of the spatial position where the photodiode array 2 is located and the XYZ coordinates of the spatial position where the display array 3 is located are the same, and the Z coordinates are different.

FIG. 2 shows another embodiment of an arrangement of a photosensor array 2 and a photodiode array 3; comprises a filtering lens 1, a photosensitive sensor array 2, a photodiode array 3 and an accessory circuit thereof, and a tracing screen 4. In the use case, the incident laser enters the device after the spectral components of the background wave band are filtered by the filter lens 1, and the unit of the laser beam falling on the photosensitive sensor array 2 is triggered, so that the photodiodes 3 at adjacent corresponding positions are conducted to emit light, and the position information of the laser beam is displayed on the tracing screen 4. In this embodiment, the tracing screen may be in a default state, and the photodiode emits light directly to give out the position information. In this embodiment, the XYZ coordinates of the spatial position where the photodiode array 2 is located and the XYZ coordinates of the spatial position where the display array 3 is located, which correspond to one another, are different, and the Z coordinates are the same. In this embodiment, the photodiodes 2 are disposed adjacent to the leds 3, and preferably, the volumes of the photodiodes and the leds 3 should be as small as possible, and the number of each of the photodiodes and the leds should be not less than 25 per square centimeter.

Fig. 3 is a schematic diagram of an array circuit, where the photosensitive detectors 5 are in one-to-one correspondence with the positions of the photodiodes 6, and when the photosensitive detectors detect the laser beam, the corresponding photodiodes are triggered to emit light, the light-emitting brightness of the light is proportional to the energy density of the laser at the position, and the sensitivity of the device can be adjusted by changing the resistance value of the fixed resistor 7. When laser beams are irradiated on the device, the photosensitive sensors at corresponding positions control the photodiodes at corresponding positions to emit visible light and mark real-time positions of the beams on a display screen.

Fig. 4 is a schematic structural view of the same side view mode of the indication screen device of the present utility model. In the mode, the filtering lens 1 is also a tracing screen, the positions of the film-plating light-transmitting parts of the filtering lens are in one-to-one correspondence with the positions of the photosensitive sensor 2 and the photodiode 3, and the other parts are roughened; when the laser beam is irradiated on the device, the photosensitive sensor 2 at the corresponding position controls the corresponding photodiode 3 to emit visible light in the auxiliary control circuit and marks the real-time position of the beam on the display screen. In this embodiment, each two photosensitive sensors 2 corresponds to one led unit 3.

It should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limited thereto; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A weak laser facula display screen device is characterized in that: the device comprises a filtering light-transmitting lens, a photosensitive sensor array, a display array and an accessory circuit controller; wherein the photosensitive sensing units forming the photosensitive sensor array and the developing units forming the developing array are in one-to-one correspondence with each other; the laser beam enters the device after the spectral components of the background wave band are filtered by the filtering lens, the laser beam is incident on the photosensitive sensor array, and the photosensitive sensor units are triggered, so that the imaging units corresponding to the photosensitive sensor units one by one are triggered to display or emit light, and the imaging array is locally displayed or emits light; the one-to-one corresponding photosensitive sensing units and the imaging units are in space XYZ coordinates, and are characterized in that X, Y coordinates are the same or Z coordinates are the same.

2. The weak laser spot display screen device according to claim 1, wherein the filter lens is a transmissive plate, and weak laser light is incident on the photosensitive sensor array after passing through the filter lens.

3. The weak laser spot display screen device according to claim 1, wherein the filter lens is a converging lens, and weak laser light is incident on the photosensitive sensor array after passing through the filter lens.

4. The weak laser spot display screen device according to claim 1, wherein the filter lens is coated with a film, which is replaceable according to a specific test light source, and wherein the coating is characterized by total reflection for the undesired spectral region in the weak laser spectral band.

5. The weak laser spot display screen device according to claim 1, wherein the subsidiary circuit controller controls the intensity or brightness of the display unit in proportion to one-to-one correspondence with the light intensity received by the photosensitive sensor unit.

6. The device according to claim 1, wherein the number of photosensitive sensor units or the imaging units is distributed in units of square centimeters, not less than 9.

7. The apparatus of claim 1, wherein the spatial XYZ coordinates, X, Y coordinates of the one-to-one photosensitive sensor unit and the imaging unit are the same; i.e. the imaging units are arranged at the back positions of the photosensitive sensing units which are in one-to-one correspondence with the imaging units; and X, Y coordinates of every two positions have an error of not more than 1mm.

8. The apparatus of claim 1, wherein the one-to-one photosensitive sensor unit and the display unit have the same spatial XYZ coordinates, Z coordinates; i.e. the imaging units are arranged at the same side positions of the photosensitive sensing units which are in one-to-one correspondence with the imaging units; and X, Y coordinates at two positions which are different from each other by not more than 5mm.

9. The apparatus of claim 1, wherein the display unit is a liquid crystal display unit, the display unit is an LED display unit, the display unit is a digital display unit, and the display unit is an ink screen display unit.

10. The device of claim 1, wherein the photosensor is a photoresistor, a photodiode, a phototransistor.