The invention belongs to the technical field of microscopic scanning imaging, and particularly relates to a color-adjustable RGB
light source device for microscopic scanning, which comprises a base, a lamp tube is mounted on the base, an RGB
light source, a light
homogenizer, a first lens and a second lens are sequentially arranged in the lamp tube, the RGB
light source is positioned on one side, close to the lamp tube, of the lamp tube, and the RGB light source is positioned on the other side, close to the lamp tube, of the lamp tube. The end, away from the base, of the lamp
barrel is further provided with a cover body, a light outlet hole is formed in the middle of the cover body, and light emitted by the RGB light source sequentially passes through the light
homogenizer, the first lens and the second lens and is emitted out of the light outlet hole of the cover body. According to the invention, light spots and
stray light are effectively eliminated, a high-quality uniform illumination field is provided for microscopic scanning, and the
contrast ratio and the color rendition degree of imaging are improved.