An optical system (1000, 2000, 2000A) for an augmented reality apparatus, comprising: an image source (10, 100); a beam splitter component (22, 23) having a beam splitting side adjacent to the image source (10, 100) and a transmission side facing away from the image source (10, 100); a wave plate (50, 401, 500) adjacent to the beam splitting side, the beam splitter component (22, 23) being arranged in such a way that light emitted from the image source (10, 100) is able to be non-perpendicularly incident on the beam splitting side and be at least partially reflected toward the wave plate (50, 401, 500); and a semi-reflector (30, 30', 30", 300) located downstream of the wave plate (50, 401, 500) in an optical path of the reflected light, wherein the beam splitter component (22, 23) is configured in such a way that when the light emitted from the image source (10, 100) is incident on the beam splitting side, a polarized light component, whose polarization is in a first direction, passes through the beam splitter component (22, 23) to be transmitted through the transmission side, and a polarized light component, whose polarization is in a second direction perpendicular to the first direction, is reflected by the beam splitting side toward the wave plate (50, 401, 500), and wherein the beam splitter component (22, 23) is also configured in such a way that when light is incident on the transmission side, a polarized light component of the light polarized in the first direction is able to pass through the beam splitter component (22, 23) to be transmitted through the beam splitting side, and a polarized light component of the light polarized in the second direction is able to be absorbed in the beam splitter component (22, 23), wherein the wave plate (50, 401, 500) is a quarter-wave plate (50, 401, 500), wherein the beam splitter component (22, 23) comprises a polarizing beam splitting film (22c, 23d) and a polarizing film (22b, 23c), wherein the polarizing beam splitting film (22c, 23d) is configured in such a way that light polarized in the first direction is allowed to be transmitted therethrough and light polarized in the second direction is reflected, wherein the polarizing film (22b, 23c) is configured in such a way that light polarized in the first direction is allowed to be transmitted therethrough and light polarized in the second direction is absorbed, and wherein viewed in a direction of the light emitted from the image source (10, 100), the polarizing beam splitting film (22c, 23d) is located upstream of the polarizing film (22b, 23c) to define the beam splitting side, wherein the beam splitter component also comprises a retarder film, wherein the polarizing film is located between the retarder film and the polarizing beam splitting film, and wherein the retarder film is a quarter-retarder film. an image source (10, 100); a beam splitter component (22, 23) having a beam splitting side adjacent to the image source (10, 100) and a transmission side facing away from the image source (10, 100); a wave plate (50, 401, 500) adjacent to the beam splitting side, the beam splitter component (22, 23) being arranged in such a way that light emitted from the image source (10, 100) is able to be non-perpendicularly incident on the beam splitting side and be at least partially reflected toward the wave plate (50, 401, 500); and a semi-reflector (30, 30', 30", 300) located downstream of the wave plate (50, 401, 500) in an optical path of the reflected light, wherein the beam splitter component (22, 23) is configured in such a way that when the light emitted from the image source (10, 100) is incident on the beam splitting side, a polarized light component, whose polarization is in a first direction, passes through the beam splitter component (22, 23) to be transmitted through the transmission side, and a polarized light component, whose polarization is in a second direction perpendicular to the first direction, is reflected by the beam splitting side toward the wave plate (50, 401, 500), and wherein the beam splitter component (22, 23) is also configured in such a way that when light is incident on the transmission side, a polarized light component of the light polarized in the first direction is able to pass through the beam splitter component (22, 23) to be transmitted through the beam splitting side, and a polarized light component of the light polarized in the second direction is able to be absorbed in the beam splitter component (22, 23), wherein the wave plate (50, 401, 500) is a quarter-wave plate (50, 401, 500), wherein the beam splitter component (22, 23) comprises a polarizing beam splitting film (22c, 23d) and a polarizing film (22b, 23c), wherein the polarizing beam splitting film (22c, 23d) is configured in such a way that light polarized in the first direction is allowed to be transmitted therethrough and light polarized in the second direction is reflected, wherein the polarizing film (22b, 23c) is configured in such a way that light polarized in the first direction is allowed to be transmitted therethrough and light polarized in the second direction is absorbed, and wherein viewed in a direction of the light emitted from the image source (10, 100), the polarizing beam splitting film (22c, 23d) is located upstream of the polarizing film (22b, 23c) to define the beam splitting side, wherein the beam splitter component also comprises a retarder film, wherein the polarizing film is located between the retarder film and the polarizing beam splitting film, and wherein the retarder film is a quarter-retarder film.