Yes, strong ambient light like surgical lights or bright sunlight can wash out the projection of basic vein finders. However, our device is designed for complex clinical environments. It features adjustable high-lumen projection and an Inverse Display Mode. This ensures that even in brightly lit ERs or operating rooms, the vein network remains sharply contrasted and clearly visible, preventing any delay in critical venipuncture.

The vascular imager first emits near-infrared light to illuminate the skin. The hemoglobin in the veins absorbs this light, while the surrounding tissues reflect it. The camera inside the device captures these differences in brightness and converts them into images. Then, through the built-in visible light projector, the vascular distribution map is projected back onto the patient's skin in its original position. 
The influence of ambient light mainly manifests in the following two aspects:

1.The projection contrast is "diluted": It's like watching a projector or watching a movie in a sunny living room during the day. If the lighting in the hospital ward is very bright, or if the operating room uses a bright light without shadow, these intense ambient visible lights will directly cover the skin, resulting in a significant drop in the contrast of the color vascular images projected by the imaging device, making them appear pale and blurry. 
2. Interference from infrared light: Sunlight or certain halogen lamps contain a significant amount of infrared components. If the infrared light in the ambient light is too strong, it may interfere with the infrared camera sensor of the device, increasing the "noise" in the image.

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