TLens®可调焦透镜在400 - 650 nm范围内提供95%(典型值)的平均透过率，焦距调节范围从10 cm或20 cm到无xian远，非常适合自搭建的实验光学装置，比如共聚焦显微镜和光学相干断层扫描。这些透镜采用基于TLens®*技术的MEMS设计，旨在复制人眼功能，提供响应时间< 1 ms的快速对焦，且视野恒定，无磁干扰，功耗低至< 1 mW。
特点
● 焦距调节范围：10 cm(VL15系列)或20 cm(VL19系列)到无xian远
● 安装于16mm或30mm笼板中
● 响应时间：< 1 ms(达到*终近似值的63.2%)
● 通光孔径：Ø1.55 mm(VL15系列)或Ø1.90 mm(VL19系列)
● 超低功耗：< 1 mW
● 兼容Thorlabs覆盖0 - 50 V电压范围的压电控制器
● 平均透过率：400 - 650 nm范围内95%(典型值)
●透射波前误差：< 50 nm
L15和VL19系列可调焦透镜的典型透过率
规格
| Item # | VL15S(/M) | VL15C(/M) | VL19S(/M) | VL19C(/M) |
|---|---|---|---|---|
| Typical Mechanical Specifications | ||||
| Cage Size | 16 mm | 30 mm | 16 mm | 30 mm |
| Inner Bore | SM05 Threaded | SM1 Threaded | SM05 Threaded | SM1 Threaded |
| TLens® Dimensions (L x W x T) | 4.900 mm x 4.400 mm x 0.545 mm | |||
| Assembly Dimensions (L x W x T) | 40.3 mm x 25.4 mm x 10.2 mm | 54.3 mm x 40.6 mm x 10.2 mm | 40.3 mm x 25.4 mm x 10.2 mm | 54.3 mm x 40.6 mm x 10.2 mm |
| Flatness | < 0.030 mm | |||
| TLens® Weight | 15 mg | |||
| Assembly Weight | 14 g | 30 g | 14 g | 30 g |
| Input Connector Type | SMC Male | |||
| Drawingsa |  |  |  |  |
| Typical Optical Specifications | ||||
| Focal Range | Infinity to 10 cm | Infinity to 20 cm | ||
| Clear Aperture - Sensor Sideb | Ø1.55 mm | Ø1.90 mm | ||
| Clear Aperture - Object Sideb | Ø2.00 mm | Ø2.25 mm | ||
| Transmitted Wavefront Error (RMS)c | 30 nm | |||
| Average Transmittance (Between 400 and 650 nm) | 95% | |||
| Typical Actuator Specifications | ||||
| Minimum Optical Power | -4 m-1 | |||
| Maximum Optical Power | 14 m-1 | 9 m-1 | ||
| Hysteresisc | 1 m-1 | |||
| Maximum Response Timed | 1 ms | |||
| Equivalent Capacitance @ 0 V | 40 nF | 25 nF | ||
| Operating Conditions | ||||
| Operating Voltage (Between Top and Bottom Electrode) | 0 V - 50 V | |||
| Duty Cycle Over Lifetime-Operating Voltage Cycle | 10% | |||
| Minimum Operating Voltage Cycles | 106 | |||
| Operating Temperature | -20 °C - 85 °C | |||
| Relative Humidity | < 85% | |||
| Absolute Maximum Ratings | ||||
| Storage Temperature | -40 °C - 85 °C | |||
| Applied Voltage (Between Top and Bottom Electrode) | -15 V - 60 V | |||
| Applied Current | < 1 mA | |||
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