| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that when receiving the rays of light in a center of a luminous flux in order to measure the light quantity of a high output laser, light intensity is large, and thermal lens effects are generated, thereby a wave front is disordered, and the loss of the light quantity is increased, and a change in the position of the luminous flux is unmeasurable.SOLUTION: A light detection device for a high output laser processing device is configured to detect the rays of light in the peripheral section of the luminous flux of convergent lights, and to detect light quantity, the position of a center of a luminous flux and the variation of the position, the shape of the luminous flux, the light quantity of specific wavelength, and reflected lights from a processing object, in which there are a plurality of light receivers in the peripheral section of the luminous flux, and the light receivers are arranged at the positions of rotational symmetry, and an electronic circuit is arranged at the side of each light receiver. |
