現代人有空就滑手機，伴隨而來的常是眼睛疲勞、視力異常等問題。眼科醫師賴旗俊表示，人的眼睛有主視眼與輔視眼區別，若輔視眼出狀況可能不易察覺，建議每早起床各遮一眼，檢查兩眼視力是否有差異、模糊、瞳孔中間有黑點或黑斑、扭曲及辨色能力下降情況，一旦出現就應立即就醫。

The horn antenna has a distinctive design that is enlarged towards the end. Horn antennas typically feature a directional radiation pattern with a high antenna gain of 10-20 dBi, some antennas have a higher gain such as the standard horn antenna up to 25 dBi. Horn antennas feature a low VSWR and a wide impedance bandwidth.

Double Ridged Horn Antennas are very popular from 200 MHz frequency to higher frequencies up to 40GHz. We have recently extended the usage frequency of this antenna up to 60 GHz.

This antenna's operating frequency has recently been increased to 60 GHz. The research process for the product line is still ongoing but is planned to be completed this year. To receive the most recent price and technical information on the new product, please contact us for more information.

Double Ridged Horn Antennas are suitable for both transmitting and receiving purposes, with applications:

• - Antenna measurement
• - Communication systems
• - Satellite tracking systems
• - Radar Detection System
• - Surveillance System
• - Electromagnetic Compatibility Testing (EMC test)

Recommended Accessories

• - Antenna Tripod: easy and fast-changing position. 100% stable after installing.
• - SMA Cable: High-quality special SMA cable

Learn More 

SUMMARY TABLE OF DOUBLE-RIDGED HORN ANTENNA (HA-SERIES) 

羅氏藥廠日前發布「2025年亞太視力健康調查（APAC Vision Health Survey）」結果，這項涵括台灣在內的跨國研究，共對4354位40歲以上民眾進行調查，結果發現亞太區民眾對視力健康的認知與實際行動間存在著顯著落差。

調查結果歸納出民眾對視力健康認知存在「兩好三壞」的現象。「兩好」分別為民眾普遍高度重視視力健康，並警覺視力問題會嚴重影響其工作與日常生活；「三壞」則是對眼疾認知不足、預防行動消極與照護者面臨沉重負擔，擔憂視力健康，卻未進行例行性眼部檢查，甚至等到出現症狀才就醫，多數照護者表示面臨心理壓力、感到疲倦。

本篇文章引用自此: https://www.chinatimes.com/realtimenews/20250619003205-260418

Fei Teng Wireless Technology Co. Ltd

Taiwan Head Office & Manufacturer:

No.369, Sec. Litoushan, Wenshan Rd., Xinpu Township, Hsinchu County 305, Taiwan (R.O.C.) MAP

Tel:  886-3-5882899

Fax: 886-3-5882879