用光纤制成的光束变换元件代替大孔径透镜和狭缝拍摄彩虹全息图．大大提高了全息图的视角．而且方法简单。介绍了用光纤光束变换器拍摄大视角彩虹全息图的原理、方法．并进行了实验验证，得到了较为满意的效果。 Beam conversion element made of optical fiber instead of a large aperture lens and slit rainbow hologram shooting. Greatly increased hologram perspective. And the method is simple. Introduced the principle and method of shooting large-view rainbow hologram with fiber optic beam converter. And the experimental verification, has been more satisfactory results.