Cross Laser Module

Description

Mainly used for laser toys, various levels, ground line meters, etc. The laser head is composed of three parts: a light-emitting tube core, a condenser lens, and a copper adjustable sleeve. These three parts have been assembled when sent to the user. The focal length of the lens is also adjusted, and has been glued with strong glue. The user can work after connecting the 3V DC power supply.

Specifications

• Transmission power: 5mW
• Life span: More than 1000 hours
• Spot mode: Cross beam, continuous output
• Laser wavelength: 650nm
• Power: 50mW
• Voltage: 3V
• Current: <20mA
• Operating temperature: -36^oC ～65^oC
• Storage temperature: -36^oC ～65^oC
• Light spot size: The light spot at 15 meters is φ 10mm ~ φ 15mm

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).

Applications

Making an electronic pointer pen: The teacher uses laser projection points to remind students to observe and think.

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 and let the laser pass through the controllable LCD screen to produce a 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 at 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 protection zone.

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.

Important Reminders

1. The laser must not be pointed at your own or others' 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 excellent. 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 is not allowed to be used by children, people who are mentally weak, or people who do not understand the characteristics of the laser. In this case, it will easily cause injury.
4. Wear special goggles when using lasers. This is particularly important for invisible lasers.
5. The laser cannot be irradiated on vehicles, airplanes and other vehicles with 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.

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