Laser Diode Modules from Tianzhi are belong to the Customized Products, So give us your list Of requirement and you shall be delighted by what you are going to get back from us.

"OSRAM" 520nm Direct Laser Diode Module has been greatly improve the reliability and stability and with its compact size which suitable for wild range of applications and equipment.

Direct Diode Green Laser, Not DPSS!

Less Power Consumption, Higher reliability and Stability, Better Effectivity!

Compact Mini Size, More Applications!!! For small Gadgets!!! Revolution Product!!

• High Quality 
• High Stability 
• High Reliability 
• Fast Rise Time
• APC driving circuit 
• Wide Temperature Range
• Low cost / Long Life 

TIANZHI provides standard laser modules that are convenient for quick and easy orders of samples or small quantities on our Online-store.

We also provide and welcome orders of custom made laser modules with any specification requirement. TIANZHI is not only a laser module manufacturer but can also provide optics, optoelectronic integrated solutions from design to production.

Any part or specification of each module can be modified.

Below is an introduction of some of the specifications for the laser modules that we would need to know to be able to propose to you the best adapted solution. You can also describe the application and the work environment of the laser you desire, and our laser design team will let you know our suggestions and all possible solutions, from the most cost efficient to the highest quality laser modules.

We divide a laser diode module structure into 4 main sections:
- a laser diode
- an optical lens
- a laser driver circuit (PCB)
- optical and mechanical properties

The light emitted from these devices has been set in accordance with IEC60825. However, staring into the beam, whether directly or indirectly, must be avoided.

CLASS Ⅰ

The maximum permissible exposure(MPE) cannot be exceeded, it includes High-power lasers within an enclosure that prevents exposure to the radiation and that cannot be opened without shutting down the laser. For example, a continuous laser at 600nm can emit up to 0.39mW, but for shorter wavelengths, the maximum emission is lower.

CLASS Ⅱ

“Caution”, visible laser light less than 1.0mW. Considered eye safe, normal exposure to this type of beam will not cause permanent damage to the retina.

CLASS ⅢA

“Danger”, visible laser light between 1.0mW and 5.0mW. Considered eye safe with caution. Focusing of this light into the eye could cause some damage.

CLASS ⅢB

“Danger”, infrared(IR), and high power visible lasers considered dangerous to the retina if exposed.

NB: it is important to note that while complying with the above classifications, unless otherwise stated. Our laser diode products are not certified and are designed solely for use in OEM products. The way in which device is used in the final product may alter its original design classification, and it is the responsibility of the OEM to ensure compliance with the relevant standards. Specifications are subject to change without notice.

Lasers are classified based on their potential for causing injury — especially eye damage, since the eye is most susceptible to excess laser light.

There are four main classes for visible-beam lasers: Class 2, Class 3R, Class 3B and Class 4. The first two are relatively safe for eye exposure; the last two are hazardous. The chart below shows that the eye injury hazard increases as the laser’s power increases.