KR960043842A - Stereoscopic projector - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic projector that forms a stereoscopic image using an actuated mirror array (hereinafter referred to as AMA /) as a reflective optical path control element. The present invention relates to a three-dimensional projector that allows viewers to simultaneously view stereoscopic images within a certain field of view, and its configuration includes a light source 30, a focusing lens 32, and focused light with polarization separation means 34. Optical path control means (40,46) for reflecting the separated light to the path controlled light, and by rotating the light separated by the polarization separation means 34 by λ / 4 the optical path control means (40,46) Λ / 4 plates 36 and 42 are installed to rotate the light reflected by the optical path control means 40 and 46 by λ / 4 so as to be incident on the polarization separation means 34. The light path incident on the polarization separating means 34 is tuned. Projection stoppers 35 and 48 for cutting down the light and passing the adjusted light through the transmission hole, a collimating lens 50 for projecting the light polarized again by the polarization separating means, and the collimating lens ( The lenticular plate 60 reflects the light projected through 50 and the rear surface of the lenticular plate 60 and is tilted by a predetermined angle according to a predetermined signal to reflect incident light incident through the lenticular plate 60. And a third optical path adjusting means 70 and a two-lens 80.

Description

Stereoscopic projector

As this is a public information case, the full text was not included.

3 is a view showing a three-dimensional projector using a lenticular plate according to the present invention, FIG. 4 is a main detail of FIG. 3, and FIG. 5 is a view showing an optical path control means in the three-dimensional projector according to the present invention.

Claims (6)

A light source 30 emitting white light having high brightness, a focusing lens 32 for focusing white light emitted from the light source 30, and white light focused by the focusing lens 32 are polarized to transmit first polarized light. And a path of light corresponding to a plurality of pixels, respectively, according to an image signal applied from outside of the polarization splitting means 34 for reflecting the second polarized light and the first and second polarizations separated from the polarization separating means 34. Is installed between the first and second optical path control means (40, 46) and the polarization separation means 34 and the first and second optical path control means (40, 46) for reflecting the adjusted light, respectively. The first and second polarized light separated by the means 34 are rotated by λ / 4 to be incident to the first and second optical path adjusting means 40 and 46, and the first and second optical path adjusting means ( 40 and 46 rotate the light reflected by [lambda] / 4 to be incident on the polarization separating means 34. First and second λ / 4 plates 36 and 42 are provided, and the first and second polarized light in which the optical path incident on the polarization splitting means 34 is adjusted are formed to the degree of the optical path controlled through the transmission hole. Collimating to continuously transmit the first and second polarized light having a proportional first and second polarization, and the first and second polarized light passing through the projection stopper and polarized again by the polarization separating means. A lens 50, a lenticular plate 60 for reflecting light transmitted through the collimating lens 50, and a lenticular plate installed on a rear surface of the lenticular plate 60 and tilted by a predetermined angle according to a predetermined signal. A third optical path adjusting means 70 for reflecting the light incident through the 60 and a projection lens 80 for projecting the light passing through the third optical path adjusting means 70 and the lenticular plate 60; Three-dimensional projector, characterized in that made by. According to claim 1, wherein the third optical path control means 70 is a time-division drive by time-division by one line scan time (SCAN TIME) in the NTSC method, tilting the unit pixel mirror 70C by a predetermined angle ( 3D projector characterized in that the (TILTING). The stereoscopic projector according to claim 1, wherein a field lens (38, 44) is provided between the polarization separating means (34) and the first and second lambda / 4 plates (36, 42), respectively. 2. The first and second color separation means (52, 54) between the first and second optical path adjusting means (40, 46) and the first and second λ / 4 plates (36, 42), respectively. 3) Projector characterized in that the installed. 5. The three-dimensional projector according to claim 4, wherein the first and second color separation means (52, 54) are each made of a color filter which transmits only one of red, green, and blue light. 5. The three-dimensional projector according to claim 4, wherein the first and second color separation means (52, 54) are made of a dichroic mirror. ※ Note: The disclosure is based on the initial application.