1911年Gullstrand氏首创裂隙灯,光源采用Nernst氏灯,这种灯的灯丝呈棒形,通过聚光镜结灯丝象于裂隙处,再由投射镜将裂隙象照入眼部(即临界照明critical illum ination),并用肉眼观察。后来Henker氏配以双目立体显微镜,从而成了早期的裂隙灯显微镜。现代的裂隙灯显微镜,照明方法是1920年Vogt氏改进的, 1911 Gullstrand’s first slit lamp, the light source using Nernst’s lamp, the lamp filaments were rod-shaped, through the condenser lens filaments like cracks in the Department, and then by the projection lens will crack image into the eye (ie critical lighting critical illum ination ), And observed with the naked eye. Henker later with a binocular stereomicroscope, which became the early slit lamp microscope. Modern slit lamp microscope, lighting method is Vogt’s improvement in 1920,