Detection device

A detection device, comprising:

• a light emitting element, configured to provide an excitation beam;
• an accommodation frame, having at least one sleeve structure, wherein the at least one sleeve structure is configured to accommodate an object under test, and a portion of the excitation beam whose dominant light emitting wavelength falls within a first waveband range forms a fluorescent beam after passing through the object under test;
• a light detector, configured to receive a portion of the fluorescent beam whose dominant light emitting wavelength falls within a second waveband range;
• and
• a movable light splitter, comprising a first movable light splitter and a second movable light splitter, wherein each of the first movable light splitter and the second movable light splitter has a first surface and a plurality of inclined surfaces, the inclined surfaces are inclined with respect to the first surface, and the first surface is configured to be rotated a predetermined light splitting angle with respect to an incident beam,
• wherein the predetermined light splitting angle comprising a first predetermined light splitting angle and a second predetermined light splitting angle, the incident beam is at least one of the excitation beam and the fluorescent beam, when the incident beam is the excitation beam, a value of the first waveband range corresponds to a value of the first predetermined light splitting angle, and when the incident beam is the fluorescent beam, a value of the second waveband range corresponds to a value of the second predetermined light splitting angle,
• wherein the incident beam forms a plurality of sub-beams after passing through the inclined surfaces, the sub-beams have respectively different dominant light emitting wavelengths, and exit at different emitting angles,
• when the incident beam is the fluorescent beam, the second movable light splitter is located on a transmission path of the fluorescent beam and between the accommodation frame and the light detector, the light detector is located on transmission paths of the sub-beams, and a sensing surface of the light detector is configured to receive a portion of the sub-beams whose dominant light emitting wavelengths fall within the second waveband range, the second predetermined light splitting angle is an included angle between the incident beam and a normal direction of the first surface, an angle when the incident beam and the normal direction of the first surface overlap each other is set as 0 degrees, when the first surface is rotated in a clockwise direction with respect to the incident beam, a value of the second predetermined light splitting angle is positive, and when the first surface is rotated in a counterclockwise direction with respect to the incident beam, the value of the second predetermined light splitting angle is negative, and the second predetermined light splitting angle ranges between 5.47 degrees and 27.73 degrees.