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Contact us
Jane
Tel:+86 13714507157
QQ:779144199

Bill:
QQ:1254792402

Maggie:
QQ:862595905

Shirley:
QQ:2234505663

Irene:
QQ:1439334916

Shenzhen Tiglon Technology Limited
Add:7F,Building C, Dongcai Runfeng Industrial Zone, Gushu, Xixiang Town, Bao'an District, Shenzhen, China. Contact Now

News

Car DVR Lens

  • Author:XiaoPing Chen
  • Source:www.tigloncn.com
  • Release on :2014-07-22
Lens as one of important parts of car DVR, it has a direct influence on video quality. Lens include universal lens and
wide angle lens. Because of the small angle in view of universal lens, it has disadvantages used in monitoring products. Wide angle lens have become the common standard for car DVR. Normally, some factories will use 90-110 degree lens to reduce cost, medium level will use 120-130 degree lens, and few of them will use the high-end 140-158 ultra wide angle lens. To distribute the quality of lens, the main pints are quantity of lens, light transmittance, coating and grinding, mechanical device and so on.

a) Lens quality: vary kinds of lens combination will reduce the improvement focus on issues, such as color, but will reduce the light transmittance.
b) Light transmittance: Good lens light transmittance will in high price, poor one will block light through a relatively.
c) Coating and grinding: Lens coating and grinding technology affect the lens quality.
d) Mechanical device: the lens internal precision mechanical structure, affect the lens movement precision and reliability, the poor quality of the mechanical structure, adjusting errors and inconsistencies.


Additional lens
Usually, high-end car DVR will choose the most suitable lens professionally to improve the professional degree in field. It is well known that during the day, night will encounter glare to the subject, make its reflective or exposure to excessive cannot distinguish, then focus on the user experience will polarizer is used to avoid these problems.