If the laser head needs to be lit for a long time, please increase the current-limiting resistance appropriately
1. The laser must not be pointed at your own or other people's eyes at any time, even if the laser is turned off, it may be turned on by mistake.
2. The laser can not irradiate any reflective surface or smooth surface. The reflectivity of the laser is very good. When it irradiates the reflective surface, it will reflect. If it is irradiated to the human eye, it can cause injury.
3. The laser is not a toy. It should not be used by children, mentally retarded, and people who do not understand the characteristics of the laser. In this case, it is very easy to cause injury.
4. Wear special goggles when using lasers. This is especially important for invisible lasers.
5. The laser cannot be irradiated on vehicles, airplanes and other transportation vehicles that are used by people.
6. Pay attention to the safety of the laser battery to prevent others from disassembling the battery and causing short-circuit burning or battery explosion accidents.
The specificity of the laser emission principle and the production process determines that the laser has the characteristics that ordinary light does not have: three good (good monochromaticity, good coherence, good directivity) and high (high brightness).
Product name:
Laser small copper head (red light)
Transmitting power:
50mW
life span:
More than 1000 hours
Spot mode:
Point light spot, continuous output
Laser wavelength:
650nm
power:
50mW
Voltage:
3V
Current:
<20mA
Operating temperature:
-36??65?
Storage temperature:
-36??65?
Light spot size:
The light spot at 15 meters is ?10mm~?15mm
Mainly used for laser toys, various levels, ground line meters, etc. The laser head consists of three parts: a light-emitting tube core, a condenser lens, and a copper adjustable sleeve. These three parts have been assembled when they are sent to the user. The lens The focal length has also been adjusted, and it has been glued with strong glue, and the user can connect to the 3V DC power supply to work.
In theory, under ideal conditions (no dust, no smoke, no obstructions), the transmission distance of the laser is unlimited. In the case of high air quality, the transmission distance of this laser head can reach more than 1KM when the working current of 20MA is applied. In the general cloudy night, it is clearly visible on objects 200 meters away. At close range, it is clearly visible on outdoor roads and buildings even in the daytime sun.
Making an electronic pointer pen: The teacher uses laser projection points to remind students to observe and think during lectures.
Electronic level: Let the motor drive the bald head to rotate or twist, and project it into a straight line on the wall for reference when decorating or posting New Year pictures.
Miniature LCD projection: remove the condenser lens, let the laser light through the controllable LCD screen, can produce clear projection on the wall.
Long-distance laser monitor: Let the laser shine on the glass of the room being eavesdropped on, and then receive the laser beam reflected from the glass, and detect the vibration of the glass to restore the sound of the room.
Long-distance light-controlled anti-theft alarm: install a laser emitting tube and a photoresistor on one corner of the fish pond or watermelon field that needs to be protected, and install a mirror at the other three corners to form a protective area.
Long-distance laser wireless communication: Use a pair of laser transceivers to face each other on two remote roofs, and use the serial communication protocol of the single-chip microcomputer to send and receive files, and even network.
?Warning?Laser is harmful to human eyes, please do not aim at human eyes directly, please keep away from children to avoid accidental injury