We Are professional Optical components supplier in china.
 Here you can find all the optical components you need, and purchase them in a satisfactory price!
 Our mian products for beauty equipments as below:
 Quartz  trapezoida Light Guide Block(with cutoff coating 950nm~1200nm);
 Sapphire /Bk7 Filter (Band pass filter,430nm,480nm,530nm,580nm ETC);
 Sapphire Protect window for 808 diode laser machine( 808nm AR coating,532nm,1064nm ETC.)
  Tooling Tolerance(Length,Wideth,Hight): ±0.05mm
 Surface Quality: S/D 60/40(best 20/10)
 Size: Customized
 Stocked Size:
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| Dimensions | Light out | Light In | Coating |
| (65-30)x65x12 | 30x12 | 65x12 | AR560-950nm |
| (65-30)x57x12 | 30x12 | 65x12 | AR560-950nm |
| (65-50)x65x15 | 50x15 | 65x15 | AR560-950nm |
| (65-35)x65x15 | 35x15 | 35x15 | AR560-950nm |
| (65-50)x57x15 | 50x15 | 65x15 | AR560-950nm |
| (65-35)x57x15 | 35x10 | 65x15 | AR560-950nm |
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Video door-phone (also known as video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of video door entry is that it enables the person indoors to identify the visitor and, if (and only if) they wish, engage in conversation and/or open the door to allow access to the person calling.
The following product is the best-selling and most cost-effective video door phone in our factory,
It adopts a 4.3-inch high-definition screen and an aluminum alloy body, and is equipped with led light. It has night vision function and can clearly monitor the outdoor environment and make video calls with visitors even in the dark; physical button operation, classic design, no Easily leave fingerprints and keep your device clean and tidy. It can be used in multi-apartment systems.
The product parameters of 888QZJ4A are for your reference:
1. 4.3 inch 720 HD display TCP/IP Intercom system
2. Calling, intercom, unlocking, monitoring
3. High quality aluminium alloy frosted panel + physical buttons
4. Digital camera, stable and clear image shooting
5. Night vision and bright light compensation function
6. Full duplex voice intercom, comparable to ordinary telephone intercom
7. Elevator linkage function, connect the security system
8. LINUX system platform architecture, system simplification and stability
9. LPDDR3 1 GB memory, standard EMMC 8 GB storage expandable
10. RJ45 standard ethernet interface all-digital design
11. Low power consumption technology solution, saving energy and long life span
12. Dimension:400*140*51(mm)
13. Install method : Wall/flush install (390*130*46 mm)
14. Image/video advertising playback (advertising can be customized)
15. Door opening:IC/ID card/ password/call the Indoor Monitor or center management machine unlock
We are a factory specializing in the production, manufacture and research and development of video door phones for 11 years. We are located in the beautiful coastal city - Zhuhai. We have our own R&D team, we can provide professional products and services. We have different systems of video door phone for different customers and markets, for example, IP video door phone, 2-wire audio door phone, 4-wire video door phone and wireless doorbell, if you are interested, please feel free to contact me, I can send our catalog to your email.
Multi Video Door Phone,Video Door Phone Intercom System,Video Phone Doorbell,Video Door Calling System
Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com