The present invention provides a lighting device comprising a light source and a light generating member. The light source emits an incident ray. The light generating member is disposed on one side of the light source to receive incident light. Wherein, the incident light passes through the light generating member to generate a penetrating light. The penetrating light produces a light pattern, and the transmitted light pattern is formed at a light intensity distribution that is equal to one of the light intensity near the light source and one of the light intensity away from the light source. Thereby, when the incident light emitted by the light source penetrates the light-type generating member to illuminate a plant, the uniform illumination effect can be achieved according to the irregular shape of the plant, which helps to improve plant growth.本新型係提供一照明裝置，其包含一光源及一光型產生件。光源發射一入射光線。光型產生件設置於光源之一側以接收入射光線。其中，入射光線穿透光型產生件後產生一穿透光線。穿透光線產生一光型，且透過光型形成於靠近光源處之一光強度及遠離光源處之一光強度相等之一光強度分布。藉此，當光源發射之入射光線穿透過光型產生件照射至一植物時，可因應植物之不規則形貌，達到均勻光照效果，有助於改善植物生長。
