Description

5pcs 3V 5V laser head laser diode dotted red copper semiconductor laser tube 6MM outer diameter

FAQ response：

1) What is the resistance value of the resistance on this laser head? 33 ohm

2) How to distinguish between 3V and 5V received? The longer cable is 5V, the shorter cable is 3V

Is a tunable laser

5V laser head laser diode dotted copper semiconductor laser tube 6MM outer diameter

Red positive pole blue is negative pole

Wavelength: 650NM Power: 5MW Outer diameter: 6MM

1: Pay attention to the safety of the laser battery to prevent others from disassembling the electric power cell and causing short-circuit burning or battery explosion accidents.

2: The particularity 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 directionality) and high (high brightness).

3: Mainly used for laser toys, various level meters, ground wire meters, etc.

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 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 connect to the Internet.

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 lens focal length has been adjusted, and they have been glued with strong glue.

Well, the user can work after plugging in the 5V DC power supply.

The life of the laser head is about 3,000 hours, as long as it is not artificially damaged, several thousand hours

In the daytime, 1 to 5 meters under the sun indoors means where you can shine and you can be at least 500 meters above the outdoor

3V laser head parameters

(Lead length: 4.5CM)

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).

Red line is positive, blue line is negative

Mainly used for laser toys, various levels, grounding instruments, etc.

The life of the laser head is about 3,000 hours, as long as it is not artificially damaged, several thousand hours

In the daytime, 1 to 5 meters under the sun indoors refers to where you can shine and the outdoors can be at least 500 meters above