Optical systems with color filters for emissive displays

A display system configured to display image light, the display system comprising:

• a waveguide having an input coupler configured to couple the image light into the waveguide and having an output coupler configured to couple the image light out of the waveguide;
• a light source panel configured to emit the image light;
• a lens optically interposed between the light source panel and the waveguide, wherein the lens is configured to direct the image light towards the input coupler;
• intersecting partial reflectors optically interposed between the light source panel and the lens, wherein the intersecting partial reflectors are configured to direct the image light towards the lens;
• and
• a color filter optically interposed between the lens and the input coupler, wherein the color filter is configured to transmit a wavelength range of the image light to the input coupler and reflect wavelengths of the image light outside of the wavelength range towards an optical absorber.

A display system configured to display image light, the display system comprising:

• a waveguide having an input coupler configured to couple the image light into the waveguide and having an output coupler configured to couple the image light out of the waveguide;
• a light source panel configured to emit the image light;
• a lens optically interposed between the light source panel and the waveguide, wherein the lens is configured to direct the image light towards the input coupler;
• intersecting partial reflectors optically interposed between the light source panel and the lens, wherein the intersecting partial reflectors are configured to direct the image light towards the lens;
• a color filter optically interposed between the light source panel and the output coupler, wherein the color filter is configured to filter the image light;
• an absorbing mask between the light source panel and the intersecting partial reflectors;
• a first lens element in the lens;
• and
• a second lens element in the lens, wherein the color filter comprises a tilted dichroic filter optically interposed between the first and second lens elements, the tilted dichroic filter is configured to transmit a wavelength range of the image light to the second lens element, and the tilted dichroic filter is configured to reflect wavelengths of the image light outside of the wavelength range towards the absorbing mask via the intersecting partial reflectors.