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OSA: Measurement of Visible Light Devices for Medical Equipment

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nLED for pulse oximeter

A pulse oximeter is a medical measuring instrument that measures oxygen saturation in blood without collecting blood. Oxygen saturation is measured using the difference in the absorption characteristics of HbO2 (oxyhemoglobin) and Hb (reduced hemoglobin) in blood. Two LEDs with wavelengths of 665 nm and 880 nm are used for this measurement. Since the absorption characteristics of HbO2 and Hb change greatly depending on the wavelength, a LED with a high wavelength accuracy of about ± 0.5 nm is required for accurate measurement of oxygen saturation. The measurement wavelength range and high wavelength accuracy of the applicable models are suitable for measuring LEDs for pulse oximeters.

 

LED for pulse oximeter

Source: Konica Minolta website
https://www.konicaminolta.com/about/research/healthcare/pulse.html

Pulse Oximeter (Konica Minolta)

Source: Konica Minolta website
https://www.konicaminolta.jp/healthcare/products/pulseoximeters/index.html

nLaser for laser treatment equipment

Laser treatment devices use lasers with different wavelengths depending on the treatment target. The laser requires the singularity in wavelength so that it does not affect other parts than the target.

 

Lasers

Wavelength

Applications

Nd:YAG laser

1064 nm

Tattoos, keloids, acne, wrinkles

Laser diode

800 nm

Epilation, surgery, allergic rhinitis

Alexandrite laser

755 nm

Macule, bruise, epilation

Ruby laser

694 nm

Macule, bruises, moles

Dye laser

585 nm

Red bruise, vascular disease

Nd:YAG (SHG)

532 nm

Macule, freckles, red bruise

Laser diode

532 nm

Telangiectasia, hay fever

相关行业

相关产品和解决方案

光测量仪器

YOKOGAWA提供的解决方案可测量传统和前沿的光器件和系统,服务于日益增长的大容量光纤线路以及最新元器件技术。

光谱分析仪

YOKOGAWA的光谱分析仪质量高、技术先进,具备一流的可靠性和灵活性。这些产品的设计满足了研发、检测和生产对性能的要求。

光谱分析仪 AQ6374

AQ6374覆盖了350 ~ 1750nm的宽范围波长,包括可见光(380 ~ 780nm)和通信领域。

可见光波长光谱分析仪 AQ6373E 350 - 1200 nm

  • 0.02 nm 分辨率
  • ±50 pm 精度
  • 60 dB 动态范围
  • -80 dBm 功率灵敏度
  • 单模和多模
  • 工业和生物医学激光测试

宽范围波长光谱分析仪 AQ6374E 350 - 1750 nm

  • 0.05 nm 分辨率
  • ±50 pm 精度
  • 60 dB 动态范围
  • -80 dBm 功率灵敏度
  • 单模和多模
  • 从可见光到通信波长

短波长光谱分析仪 AQ6373

AQ6373提供的350nm到1200nm专用短波长量程可以精确测量380nm到780nm的可见光谱,因此适用于生物科学和其它领域。此型号产品还是测量1064nm Nd:YAG, DPSS激光源的常用工具。

短波长光谱分析仪 AQ6373B

AQ6373B提供的350nm到1200nm专用短波长量程可以精确测量380nm到780nm的可见光谱,因此适用于生物科学和其它领域。此型号产品还是测量1064nm Nd:YAG, DPSS激光源的常用工具。

Precision Making

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