Aiming equipment and spectroscope module thereof
The present disclosure relates to an aiming equipment and a spectroscope module thereof. The aiming equipment includes a light source module and a spectroscope module. The light source module is configured to project first light and second light. The first light and the second light have different wavelengths. The spectroscope module includes at least two lenses to reflect the first light and the second light and reduce a color difference between the first light and the second light.
1 . An aiming equipment, comprising:
a light source module, configured to project a first light and a second light, wherein the first light and the second light have different wavelengths; and
a spectroscope module, comprising at least two lenses to reflect the first light and the second light and reduce a color difference between the first light and the second light,
wherein the at least two lenses comprise a first lens, a second lens and a third lens, the second lens is disposed between the first lens and the third lens, the third lens faces the light source module, the second lens has a reflecting film on a surface adjacent to the first lens, and the reflecting film is used to reflect the first light and the second light.
2 . The aiming equipment according to claim 1 , wherein the spectroscope module has a uniform thickness.
3 . The aiming equipment according to claim 1 , wherein the second lens is a positive lens and the third lens is a negative lens.
4 . The aiming equipment according to claim 3 , wherein an Abbe number of the second lens is greater than an Abbe number of the third lens when a refractive index of the second lens is less than the refractive index of the third lens, and the Abbe number of the second lens is less than the Abbe number of the third lens when the refractive index of the second lens is greater than the refractive index of the third lens.
5 . The aiming equipment according to claim 4 , wherein the light source module is disposed on a focus of the second lens and the third lens.
6 . The aiming equipment according to claim 1 , wherein the light source module is disposed on a main optical axis of the spectroscope module.
7 . A spectroscope module for an aiming equipment, comprising:
a first lens;
a second lens; and
a third lens;
wherein the second lens is disposed between the first lens and the third lens, the third lens faces a light source module of the aiming equipment, the second lens has a reflecting film on a surface adjacent to the first lens, and the reflecting film is used to reflect a first light and a second light projected by the light source module.
8 . The spectroscope module according to claim 7 , wherein the spectroscope module has a uniform thickness.
9 . The spectroscope module according to claim 7 , wherein the second lens is a positive lens and the third lens is a negative lens.
10 . The spectroscope module according to claim 9 , wherein an Abbe number of the second lens is greater than an Abbe number of the third lens when a refractive index of the second lens is less than the refractive index of the third lens, and the Abbe number of the second lens is less than the Abbe number of the third lens when the refractive index of the second lens is greater than the refractive index of the third lens.
11 . The spectroscope module according to claim 7 , wherein a focus of the second lens aligns with the light source module.
12 . The spectroscope module according to claim 7 , wherein a focus of the third lens aligns with the light source module.