KR20090122313A - Infrared laser diode night vision - Google Patents

Abstract

PURPOSE: A monitoring camera using infrared ray laser diode diffused lighting is provided to monitor in the short distance and long distance at night time by using Day & Night camera at day and night. CONSTITUTION: The monitoring camera using the infrared ray laser diode diffused lighting is composed of a lighting part, a pair of photographing parts, and a pair of jigs. The lighting part irradiates the infrared ray laser diode diffused lighting according to the size of the electric zoom lens(1) by using the divergent lens. The photographing part photographs the infrared ray image to the image photographing element of the infrared camera(21) through the electric zoom lens. The jig monitors and irradiates the controllable same area of the respective long distance of the lighting part and photographing part.

Description

InfraRed Laser Diode Night Vision}

The present invention is a surveillance camera device that can see a distance of about 1km at night. In order to monitor a long distance, an infrared camera equipped with an electric zoom lens that can see a long distance is used to monitor a certain area.As it is a long distance which is impossible with a general infrared LED by lighting, it uses an infrared laser beam of a high power (1W or more) infrared laser diode. After spreading, the same area is illuminated through the same electric zoom.

This feature allows you to monitor farther distances at night in proportion to the specifications of the motorized zoom lens (telephoto lens) and the output of the infrared laser diode.

The present invention relates to a surveillance camera using an infrared laser diode diffusion light, in detail an infrared laser light output unit equipped with a motorized zoom lens; It consists of an infrared camera photographing unit equipped with a motorized zoom lens. The two parts have the same focus and angle of view using the same motorized zoom lens. The present invention relates to a device capable of identifying a long-distance subject even under amenorrhea by using an infrared camera to reflect infrared rays reflected by the irradiation.

In general, infrared surveillance cameras have been used for short-range surveillance of around 30 ~ 100M due to the limitation of the infrared LED output.

As described above, the conventional technique has been used by placing infrared LEDs around the camera in a circular shape or by placing infrared LEDs in a cylindrical shape on both sides of the camera. There was a problem with the use of the street.

Using twice the number of infrared LEDs does not mean that you can illuminate twice the distance brightly, that is, if 50 infrared LEDs are used to secure 50M at night, 100 infrared LEDs can be used for 100M. It is a matter of seeing. The problem is not really. When used twice, only the same distance, around 50M, is brighter, but the distance is not doubled. The reason is that if the output is the same, the light reach is the same.

Therefore, the present invention has been made to solve the above problems, an infrared laser light output unit equipped with a motorized zoom lens; It consists of an infrared camera photographing unit equipped with a motorized zoom lens, and the two have the same focus and angle of view, so that the infrared output is irradiated from the light output unit to the same area as the surveillance area of the camera photographing unit so that a remote subject can be identified even under amenorrhea. It is intended to be a device that can.

In addition, in order to see the distance, a fixed motor zoom lens should be used without focusing during focusing. The motor zoom lens uses an infrared laser to match the motor zoom lens using a diffuser lens. It aims to illuminate the same area by diffusing the light and passing it through the same motorized zoom lens.

In addition, the concentrated infrared laser beam output from the high-power infrared laser diode (1W or more) is diffused to fit the lens size of the motorized zoom lens by using a diffusion lens, and then diffused only by the adjustable area through the motorized zoom lens to illuminate at a distance. For the purpose of

In addition, the electric zoom lens equipped with a camera and the electric zoom lens equipped with a lighting unit provide a jig for correcting a micro error after installing each motorized zoom lens equipped with a camera and a light in order to photograph and illuminate the same area of a long distance. It aims to do it.

According to the present invention described above, the day and night camera that can be used in the day and night, as well as day, and at night, using the infrared laser lighting device, it is possible to remotely monitor the near and long distances under amenorrhea. have.

In addition, there is an advantage that can be identified more accurately by zooming the subject suspected day and night in the long-distance surveillance over 500M through the motorized zoom lens.

In addition, until now it was not possible to remotely monitor at night by infrared LED, but this technology has the advantage of remote monitoring at night.

The present invention has been made to achieve the above object, and in detail, using an electric zoom lens of the same specification, and composed of an infrared laser output unit and an infrared camera photographing unit arranged side by side toward the same subject, the configuration Are two motorized zoom lenses 1; One built-in control unit 2 capable of simultaneously zooming in / out and focusing two motorized zoom lenses; An infrared camera 21 mounted on the electric zoom lens of the infrared camera photographing unit; The electric zoom lens of the infrared laser output unit includes a fine focus adjusting device unit 11 capable of fine focusing, which is equipped with a diffusion lens for diffusing the infrared laser beam according to the lens size of the electric zoom lens; A high power infrared laser diode module unit 16 for generating an infrared laser beam; A heat dissipation unit 12 capable of cooling the infrared laser diode; It characterized in that it comprises a power supply 14 for maintaining a constant current and voltage of the infrared camera and the high output laser diode.

In addition, two identical motorized zoom lenses are important parts for monitoring and illuminating the same area over long distances. One of the two motorized zoom lenses fixed to correct the mechanical error that may occur when installed is finely adjusted to the left, right, up and down. It is preferable to include the jig 3 included in the housing where possible.

In addition, two identical motorized zoom lenses simultaneously transmit the same command through one built-in control unit 2 in one command so as to simultaneously zoom and focus from the outside, so that two motorized zoom lenses simultaneously move toward the same target. It is desirable to focus with.

In addition, it is preferable to place the diffusing lens module unit 11 between the infrared laser diode and the motorized zoom lens so that the laser beam output from the infrared laser diode can be diffused according to the size of the motorized zoom lens.

In addition, the diffusion lens is preferably mounted on the electric zoom lens to be mounted on the focus control device 11 capable of fine diffusion control by receiving the infrared laser beam to diffuse according to the lens size of the electric zoom lens.

In addition, in order to solve the central problem between the heat generation and the lens, the infrared laser diode is equipped with a focus adjusting device 11 on the electric zoom lens, a heat sink 12 on the focus adjusting device 11, and an infrared laser diode 16 on the heat sink. ) Is preferable.

In addition, the infrared laser diode should be a wavelength band that can not be confirmed by the human eye, it is preferable that the infrared laser diode is a high output infrared laser diode that can reach a long distance.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

In the following description of the present invention, detailed descriptions of related well-known technologies or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention.

Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators.

Therefore, the definition should be made based on the contents throughout the present specification for describing a surveillance camera using infrared laser diode diffusion lighting.

1 is a block diagram of a surveillance camera using an infrared laser diode diffusion light, Figure 2 is an overall configuration diagram of the lighting unit (B) and the imaging unit (A) according to the present invention, Figure 3 is an infrared laser diode and a heat sink and 4 is a cross-sectional view illustrating a focus control device for diffusing a laser light, and FIG. 4 is a cross-sectional view of a focus control device for diffusing an infrared laser to match an area of a lens of an end of an electric zoom lens.

As shown in the figure, the present invention is largely equipped with an infrared laser light output unit (B) equipped with a motorized zoom lens; It consists of an infrared camera photographing portion (A) equipped with a motorized zoom lens.

Since the components of the electric zoom lens and the infrared camera are known technologies, detailed description thereof will be omitted.

As shown in FIG. 1 and FIG. 2, the motorized zoom lenses are preferably arranged in pairs side by side because the target and area of illumination and image acquisition, which are the purposes of the illumination unit B and the imaging unit A, are the same.

In detail, since the motorized zoom lenses arranged in pairs side by side are devices for illuminating and photographing the same target at a long distance, two motorized zoom lens chassis 3 are used to illuminate and photograph different parts with an error of several mm. It is desirable to have a jig that can hold the zoom lens precisely and correct mechanical errors precisely.

The above-mentioned motorized zoom lenses arranged side by side are preferably controlled at the same time through one control unit 2, respectively.

Infrared laser diode 16, the focus control device 11 and the motorized zoom lens of Figure 3 should be able to accurately secure the central axis in order for the infrared laser to reach the target accurately.

In order to secure the exact center axis, the combination of the focus adjusting device 11 and the infrared laser diode 16 fixes two parts with a heat sink to fix the central axis while solving the heating part due to the characteristics of the diode, and the focus adjusting device 16 ) And the motorized zoom lens are preferably fixed with a C or CS mount.

In order to diffuse the infrared laser beam generated by the infrared laser diode 16 of FIG. 4 in accordance with the lens of the motorized zoom lens, it is preferable to finely adjust the lens 111 to adjust the diffusion area according to the size of the lens of the motorized zoom lens.

In the lighting unit B and the imaging unit A of FIG. 2, the infrared camera 21 and the infrared laser diode 16 are preferably mounted on two motorized zoom lenses.

Specifically, the motorized zoom lens, the infrared camera, and the motorized zoom lens and the laser device will be precisely controlled by simply grasping the central axis, respectively, to prevent the heat generated from each device from affecting the other parts. It works.

In order to monitor large areas such as large industries, harbors, national defense, and forest fire surveillance at night, monitoring cameras installed every 50M or 100M require a lot of surveillance personnel and cameras. However, if cameras are installed in every 1KM or 2KM, zoomed in and out for detailed surveillance, cost savings and precise surveillance are possible. In particular, the defense and maritime sectors, which are vulnerable to the natural environment, which is abundant, are essential equipment.

1 is a perspective view of a surveillance camera using an infrared laser diode diffusion light according to the present invention.

2 is a perspective view of a surveillance camera using an infrared laser diode diffusion light according to the present invention.

3 is a perspective view showing a mechanism mechanism for connecting an electric zoom lens and an infrared laser diode;

Figure 4 is a cross-sectional view showing a focus control device for adjusting the angle of diffusion of the infrared laser diode beam to the motorized zoom lens.

* Description of the symbols for the main parts of the drawings *

A. Shooting section (infrared rays reflected through the motorized zoom lens to the image pickup device of the infrared camera)

B. Illumination (irradiating laser beam of infrared laser diode through motorized zoom lens)

1. Lens 2. Built-in Motorized Zoom Control Unit

3. Electric zoom lens chassis

11.Focus adjuster (Focus adjuster to adjust angle of diffusing infrared laser diode beam to motorized zoom lens)

12. Heat sink 13. Handle

14. Power Supply 15. Cooling Fan

16. Infrared laser diode 21. Infrared camera section

111. 112. Lens 113. Fine focus

Claims (3)

A pair of lighting units for diffusing a laser beam of an infrared laser diode to a size of an electric zoom lens by using a diffusion lens, and an image capturing unit for imaging an infrared image on an image pickup device of an infrared camera through an electric zoom lens. It consists of a pair of jig for monitoring and lighting the same area of the remote control and the shooting unit, respectively. This jig is equipped with a diffuser lens that can diffuse the laser beam output from one straight point to the lens size of the motorized zoom lens. Control jig that can control two zoom motors at the same time from the outside simultaneously with one command.

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