DEVICE FOR MANUFACTURING DISPLAY LENS, METHOD FOR THE SAME, AND HEAD MOUNTED DISPLAY DEVICE COMPRISING DISPLAY LENS MANUFACTURED THEREBY

摘要

According to an embodiment of the present invention, in an apparatus for manufacturing a display lens including a holographic optical element for recording a hologram by irradiating a laser beam to a photosensitive substrate formed by coating a photosensitive material on the substrate, A first laser light incidence unit for injecting a first laser light converging along the irradiation direction on one surface, and a second laser light for injecting a second laser light emitted from a plurality of points along the irradiation direction on the other surface of the photosensitive substrate It provides an apparatus for manufacturing a display lens including an incidence unit, a method for manufacturing a display lens using the same, and a head mounted display device including a display lens manufactured thereby.