Optoelectronic apparatus

An optoelectronic apparatus comprising:

• a light detector having a bottom side, an upper side and at least one sidewall that extends between the upper side and the bottom side;
• a carrier having an upper surface on which the light detector is arranged such that the bottom side faces the carrier;
• at least one outer wall, which is arranged on the surface of the carrier, the outer wall and the carrier forming a cavity with an opening in which the light detector resides;
• a filter covering the upper side of the light detector, the filter comprising a first threshold wavelength separating a first wavelength region from an adjacent second wavelength region, wherein the filter has a lower transmittance for light at wavelengths in the first wavelength region than for light at wavelengths in the adjacent second wavelength region;
• a first material layer covering the filter, the first material layer comprising a second threshold wavelength separating a third wavelength region from an adjacent fourth wavelength region,
• wherein the first material layer has a higher absorbance for light at wavelengths in the third wavelength region than for light at wavelengths in the adjacent fourth wavelength region,
• wherein the first threshold wavelength differs from the second threshold wavelength by at most ±20 nm;
• and
• a second material layer comprising a highly absorbing casting material, the second material layer arranged between the first material layer and the carrier.