| 摘要 |
PURPOSE:To narrow an angle of emergence by lens effect, by directly glueing a minute convex lens to a semiconductor laser luminous end surface. CONSTITUTION:A laser chip 101 is soldered to a substrate 103, and a lead wire 106 is mounted. Polyacrylate 105 is applied to a luminous end surface of a laser 107 formed. The laser is radiated, a photo-fiber 111, to which nose a spherical lens 110 is glued, is brought near, a location where the quantity of lights in the fiber is maximum is detected, the lens 110 is contacted with the adhesives 105 and the location where the quantity of lights in the fiber is maximum is again detected. When ultraviolet rays are irradiated while the fiber remains as it is located at the optimum position, the adhesives 105 are hardened and the lens is calmly parted from a luminous surface, a concave portion 108 in acrylate with the curvature of the lens is formed to the laser end surface. A spherical high refractive index glass lens 109 separately prepared is inserted into the concave portion 108, and ultraviolet rays are again irradiated, thus completing work. |
