Patent ID: 11906420
Assignee: HITACHI HIGH-TECH CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 12:
13. A light source, comprising:
a first LED and a second LED that is disposed in parallel, one of the first LED and the second LED emitting ultraviolet light, the second LED having a light emission spectrum different from that of the first LED;
a dichroic prism that includes a reflection surface and a dichroic surface, the reflection surface being opposite to the first LED and reflecting light of the first LED to a side of the second LED, the dichroic surface being opposite to the second LED, reflecting light of the first LED, and allowing light of the second LED to penetrate; and
a light shielding unit that is disposed between a light emission surface of the first LED or the second LED and the dichroic prism.