| 摘要 |
The present invention relates to an illuminating device, comprising a lens (1), a light-emitting module (2) with an encapsulation layer (5) and a circuit board (3), wherein the light-emitting module (2) is arranged on the circuit board (3) and the lens (1) is fixed on the circuit board (3) to define an accommodation cavity (4) for accommodating the light-emitting module (2) with the encapsulation layer (5), wherein a transparent filler (6) is potted into the accommodation cavity (4), a refractive index (n1) of the filler (6) is greater than or equal to a refractive index (n2) of the lens (1) and smaller than or equal to a refractive index (n3) of the encapsulation layer (5), or, the refractive index (n1) of the filler (6) is greater than or equal to the refractive index (n3) of the encapsulation layer (5) and smaller than or equal to the refractive index (n2) of the lens (1). The present invention further relates to a method for assembling the illuminating device. The illuminating device of the present invention is easily installed with a compact structure, and has a high optical efficiency and light output quantity so as to obtain an ideal light distribution pattern.
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