Short-distance optical amplification module and near-eye display optical module using the same
A short-distance optical amplification module and a near-eye display optical module using the same in the present invention relates to an optical amplification module applicable for short distance and an optical module using the same for near-eye display. The purpose of the present invention is to provide an optical amplification module for large-multiple amplification within a short distance (less than 5 cm) and a near-eye display optical module using the same to achieve super large field of view within a short distance (less than 3 cm). The short-distance optical amplification module in the present invention comprises a first 45 degree phase delay sheet ( 2 ), a partial-transmission and partial-reflection curved lens ( 4 ), a second 45 degree phase delay sheet ( 5 ) and a reflective polarizing sheet ( 6 ) which are sequentially arranged. The near-eye display optical module in the present invention comprises a display screen ( 1 ) disposed on the side of the first 45 degree phase delay sheet ( 2 ) away from the partial-transmission and partial-reflection curved lens ( 4 ).
1. A short-distance optical amplification module, comprising a first 45 degree phase delay sheet ( 2 ), a partial-transmission and partial-reflection curved lens ( 4 ), a second 45 degree phase delay sheet ( 5 ) and a reflective polarizing sheet ( 6 ), which are sequentially arranged, wherein the partial-transmission and partial-reflection curved lens ( 4 ) is a curved lens with 50% transmission and 50% refection; and an optical device with no effect on a light phase delay, which is disposed between any adjacent two of the first 45 degree phase delay sheet ( 2 ), the partial-transmission and partial-reflection curved lens ( 4 ), the second 45 degree phase delay sheet ( 5 ) and the reflective polarizing sheet ( 6 ); wherein the optical device with no effect on the light phase delay is an optical module ( 3 ) for correcting hue variation.
2. A near-eye display optical module using the short-distance optical amplification module according to claim 1 , comprising a display screen ( 1 ) disposed on the side of the first 45 degree phase delay sheet ( 2 ) away from the partial-transmission and partial-reflection curved lens ( 4 ), wherein the display screen ( 1 ) and the partial-transmission and partial-reflection curved lens ( 4 ) are respectively disposed on both sides of the first 45 degree phase delay sheet ( 2 ).
3. The near-eye display optical module according to claim 2 , wherein the optical device with no effect on the light phase delay is disposed between any adjacent two of the display screen ( 1 ), the first 45 degree phase delay sheet ( 2 ), the partial-transmission and partial-reflection curved lens ( 4 ), the second 45 degree phase delay sheet ( 5 ) and the reflective polarizing sheet ( 6 ).
4. The near-eye display optical module according to claim 2 , wherein the display screen ( 1 ), the first 45 degree phase delay sheet ( 2 ), the partial-transmission and partial-reflection curved lens ( 4 ), the second 45 degree phase delay sheet ( 5 ) and the reflective polarizing sheet ( 6 ) are disposed coaxially.
5. The near-eye display optical module according to claim 4 , wherein the axial side is coated with light absorption materials.