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LED Projector RoHS Certification Test

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Update time : 2024-07-26

A projector, also known as a projection device, is a device that can project images or videos onto a screen. It can connect to computers, VCDs, DVDs, BDs, gaming consoles, camcorders, and other devices to play corresponding video signals. So how does a projector obtain ROHS certification? Let's take a look with the editor from Shitong!

 

Projector RoHS Certification

Projectors are widely used in homes, offices, schools, and other places. Depending on their working principle, there are different types such as CRT, LCD, and DLP. Currently, mainstream projectors on the market primarily use Digital Light Processing (DLP) technology and 3LCD technology. The light sources used in projectors include traditional high-intensity discharge lamps (such as ultra-high pressure mercury lamps, short-arc xenon lamps, and metal halide lamps) and new light sources represented by LED and laser light sources.

 

Traditional light source projectors typically experience dimming and yellowing of the projected image over time as the emitted light from the light source decreases (e.g., brightness decay, reduced color saturation, and contrast). In applications requiring high image quality, even if the bulb is still emitting light, it often needs to be replaced. Thus, light attenuation is a significant obstacle for projectors using traditional light sources.

 

RoHS standards worldwide are based on the IEC62321 standard.

a. The new European RoHS directive is CE/RoHS Directive (EU) 2015/863.

b. European CE-RoHS is mandatory and part of CE certification.

c. China RoHS is a voluntary certification.

d. U.S. RoHS is voluntary, enforced by the CPSC.

e. Japan RoHS is voluntary testing.

 

The current RoHS primarily tests the following items:

- Metal materials: Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent Chromium (Cr6+)

- Non-metal materials: Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent Chromium (Cr6+), Polybrominated Biphenyls (PBBs), and Polybrominated Diphenyl Ethers (PBDEs)

 

The revised RoHS Directive (EU) 2015/863 adds four phthalates to the list of restricted substances, bringing the total controlled substances to ten.

 

ROHS Testing Process:

1. The client provides product images, a BOM (Bill of Materials), and an application form.

2. A quote is provided based on the submitted materials.

3. Upon client confirmation of the quote, a filing application form and service agreement are signed, and the full project fee is paid. Test samples are then prepared.

4. The client arranges for the samples to be sent to the laboratory for testing.

5. Once testing is passed, the report is completed, and the project is concluded with the issuance of the RoHS report.


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