Description

 

Frequently asked questions

 

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

 

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

 

It’s a tunable laser

 

5V laser head laser diode spot copper semiconductor laser tube 6mm outer diameter

 

Red positive, blue negative

 

Wavelength: 650nm power: 5MW outer diameter: 6mm

 

1: Attention should be paid to the safety of the laser battery to prevent the short-circuit combustion or battery explosion accidents caused by the disassembly of the electric power cell by others.

 

2: The particularity of laser emission principle and production process determines that laser has the characteristics that ordinary light does not have: three good (good monochromaticity, good coherence, good directivity) and one high (high brightness).

 

3: Mainly used for laser toys, all kinds of level, ground wire, etc

 

Making electronic pointer pen: when teachers give lectures, they use laser projection point to ask students to observe and think.

 

Electronic level: let the motor drive the smooth head to rotate or twist, and project it into a straight line on the wall for horizontal reference when decorating or pasting New Year pictures.

 

Micro LCD projection: remove the condenser, let the laser through the controllable LCD screen, can produce a clear projection on the wall.

 

Remote laser monitor: let the laser shine on the eavesdropping room glass, and then receive the laser beam reflected from the glass, detect the vibration of the glass, and restore the room sound.

 

Remote light control anti-theft alarm: a laser transmitting tube and a photosensitive resistor are installed at one corner of the fish pond or watermelon field to be protected, and a reverse mirror is installed at the other three corners to form a protection zone.

 

Long distance laser wireless communication: a pair of laser transceiver devices are used to face each other on two far roofs, and the serial communication protocol of single chip microcomputer is used to send and receive files, or even network.

 

The laser head is composed of three parts: light emitting tube core, focusing lens and copper adjustable sleeve. When it is sent to the user, the three parts have been assembled, the lens focal length has been adjusted, and they have been glued with strong glue

 

OK, the user can work after connecting 5V DC power supply.

 

The life of the laser head is about 3000 hours, as long as it is not artificially damaged, thousands of hours

 

In the daytime, when the sun is 1 to 5 meters below, the indoor light can reach at least 500 meters above the outdoor

 

3V laser head parameters (lead length: 4.5cm)

 

The particularity of laser emission principle and production process determines that laser has the characteristics that ordinary light does not have: three good (good monochromaticity, good coherence, good directivity) and one high (high brightness).

 

The Red line is positive and the Blue line is negative

 

Product Name: laser small copper head (red light)

 

Transmitting power: 150MW

 

Standard size: Φ 6*10.5

 

Working life: more than 1000 hours

 

Spot mode: spot spot, continuous output

 

Laser wavelength: 650nm (Red)

 

Output power: < 5MW

 

Power supply voltage: 3VDC

 

Working current: < 25mA

 

Working temperature: – 36 ℃ ~ 65 ℃

 

Storage temperature: – 36 ℃ ~ 65 ℃

 

Light spot size: 15 meters φ 10mm~ φ 15mm

 

Mainly used for laser toys, all kinds of level, ground wire, etc

 

The life of the laser head is about 3000 hours, as long as it is not artificially damaged, thousands of hours