Patent ID: 11927533
Assignee: ESSENLIX CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A dual-mode illumination system for illuminating a sample, comprising:
(a) a first illumination module, comprising:
a right-angle prism; and
a first light source oriented toward the right-angle prism, wherein the right-angle prism reflects or redirects light emitted from the first light source toward the sample; and

(b) a second illumination module, comprising:
a light extraction plate that comprises a light scattering structure on a surface thereof;
a second light source configured to emit light into the light extraction plate;
a second optical filter; and
a light diffuser film disposed between the second optical filter and the light extraction plate,
wherein the light scattering structure extracts non-coherent light emitted from the second light source from the light extraction plate toward the sample;
wherein the right-angle prism is transparent to the non-coherent light of the second illumination module.