此項開發透過半值為250nm的紫外透過玻璃“IHU250H”，最適用於紫外線透過用途中的鏡頭/光學系統，在分析儀器、曝光裝置、UV-LED蓋玻片、波長矯正等需要透過紫外線的領域得到廣範使用。相比石英玻璃，IHU250H的熱膨脹率接近金屬，最適合金屬化用途。
特色：
- 透過特性接近石英玻璃
- 加工溫度相當於一般玻璃
- 是可熱壓成型的五鈴原創玻璃
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blue Laserdiode
Depending on the mode of operation, these devices emit highly concentrated visible light which can be hazardous to the human eye. Products which incorporate these devices have to fol- low the safety precautions found in IEC 60825 “Safety of laser products”.
Features：
- in IEC 60825 “Safety of laser products”
- Typical emission wavelength: 450 nm
- Efficient radiation source for cw and pulsed operation
- TO90 package
- ESD protection diode
- Laser diode isolated against package
| Specifications | |||
| Maximum Ratings | |||
| Operating temperature | -20~85°C | ||
| Storage temperature | -20~120°C | ||
| Junction temperature | 135 °C | ||
| Output power | 3.2 W | ||
| Operating current | 2.5 A | ||
| Reverse current | 20 mA | ||
| Soldering temperature | 260 °C | ||
| Characteristics | |||
| Operating current | 2.0~2.4 A | ||
| Center wavelength | 437 nm ~ 460 nm | ||
| Optical output power | 3.0 W | ||
| Threshold current | 0.27 A | ||
| Forward voltage | 5 V | ||
| Total power dissipation | 5.5 W | ||
| TE polarization | 100:1 | ||
| Thermal resistance junction case real | 10 K / W | ||
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