Patent ID: 8023209

Claim:
A method of manufacturing a light source device that includes a semiconductor laser, a coupling lens that converts laser light from the semiconductor laser to a light flux and that has a first side and a second side opposite to the first side, a holder that holds the semiconductor laser and the coupling lens in a manner that the first side of the coupling lens confronts the semiconductor laser, and a photopolymerizable resin that fixes the coupling lens on the holder, the method comprising: preparing a holder, on which a semiconductor laser and a coupling lens are provided, the coupling lens having a first side and a second side opposite to the first side, the first side confronting the semiconductor laser, a photopolymerizable resin being provided on the holder at least at a location between the coupling lens and the holder; locating a light source for emitting a curing light for curing the photopolymerizable resin on an opposite side of the semiconductor laser with respect to the coupling lens, a reflecting member being provided on an opposite side of the light source with respect to the coupling lens; and curing the photopolymerizable resin by directly irradiating the curing light from the light source on a part of the photopolymerizable resin, and also irradiating the curing light on another remaining part of the photopolymerizable resin by reflecting the curing light on the reflecting member.