News
Declaration of 3nh & TILO Mail Declaration of 3nh & TILO Mail
Shenzhen 3NH (ThreeNH) Technology Co., Ltd. Shenzhen TILO Technology Co., Ltd., hereby declare we only use the domain name suffix enterprises email address (xxx@3nh.com and xxx@tilo.cn) to contact you....
More
3nh Products Have Got CE Certificate 3nh Products Have Got CE Certificate
CE-certification or CE Marking is a conformity marking consisting of the letters CE. The CE Marking applies to products regulated by certain European health, safety and environmental protection legislation. The CE Marking is obligatory for...
More
Human Eyes to Distinguish Colors Human Eyes to Distinguish Colors
The color difference unit, NBS, is derived from the unit of color difference formula which is established by Judd-Hunter. In 1939, the American Bureau of Standards adopts this color difference formula and calculates the color difference acc...
More
The Color of Objects The Color of Objects
There are three major elements to perceive color: light, object and observer. Any change of these three elements will influence the observers color perception. When the light source and the observer dont change, then the object will determi...
More
CIE Standard Observers CIE Standard Observers
In the visual observing situation, the observer is the human eye that receives the light reflected from or transmitted through an object, and the brain which perceives the vision. The visual observing situation Since different humans percei...
More

Copyright © 3NH All Rights Reserved
TEL : 86-755-26508999
FAX :86-755-26078633
ADD : F/6,Block 5B,Skyworth Inno Valley,Tangtou 1st Road,Shiyan,Baoan District,Shenzhen,P.R.China.  

skype
Service
Phone
Phone
24 Hours Online:
86-755-26508999