Abstract: A reflective member includes an incident surface configured to receive incident light; a reflective surface configured to receive the incident light from the incident surface and reflect the incident light; an emission surface configured to receive the reflected light from the reflective surface and emit the reflected light; and a light blocking portion disposed on at least one edge of either one or both of the incident surface and the emission surface, wherein an end of the light blocking portion includes a plurality of convex portions and a plurality of concave portions.

Abstract: A lens assembly includes a plurality of lenses spaced apart from each other along an optical axis; and a first spacer disposed along the optical axis between any two lenses of the plurality of lenses, wherein the first spacer includes a body portion including an opening enabling light to travel between the two lenses; and an extension portion protruding from one surface of the body portion and extending toward one lens of the two lenses, the one lens being either one of the two lenses, the one surface of the body portion is spaced apart from the one lens, and the extension portion contacts and supports the one lens.

Abstract: An optical fiber array block includes at least one optical waveguide having an optical fiber zone, and an optical device. An optical signal leakage window is formed at the optical waveguide, and the optical device corresponds to the optical signal leakage window. If the optical signal leakage window is formed at an optical fiber comprising a core and a clad layer, the clad layer is partially removed or is partially connected to the core by means of tan ion implantation technique. Thus, the clad layer has a refractive index that is similar to that of the core.

Abstract: An optical projection system includes a non-point white light source for emanating a white light, a source lens for focusing the white light, a source stopper having a source aperture for shaping the white light into a predetermined configuration, an optical means having a reflection surface for reflecting the white light, a field lens for collimating the white light, an array of M.times.N thin film actuated mirrors for changing the optical path of the white light reflected therefrom, a projection stopper having a projection aperture for passing a predetermined amount of the white light, a relay lens system having a plurality of lenses for modulating the size of the predetermined configuration of the white light, a RGB pixel filter for dividing the white light into the primary light beams, a projection lens for projecting the primary light beams and a projection screen for displaying an image made up of M.times.N number of pixels thereon.

Abstract: A compact sized optical projection system capable of displaying an image of M.times.N pixels in various sizes, wherein M and N are integers, includes a light source, a source stopper, a source lens, a total reflection mirror, an array of M.times.N actuated mirrors, a projection stopper, a projection lens, a projection screen and an array of M.times.N pixel filters, wherein the array of M.times.N pixel filters includes a plurality of sets of R pixel filter, G pixel filter and B pixel filter, and each of the sets is repeated both in a horizontal and a vertical directions, and each of the pixel filters is capable of transmitting only one of the primary light beams.

Abstract: An optical projection system comprises a non-point white light source, a source lens, a source stopper, an optical means, a first, a second and a third arrays of M.times.N actuated mirrors, a beam splitting means including a first and a second dichroic lens, a first, a second and a third field lenses, a projection stopper, a projection lens and a projection screen. Each of the field lenses is located between each of the dichroic mirrors and each of the arrays of actuated mirrors and is used for collimating each of the primary light beams onto the corresponding array of actuated mirrors and refocussing each of the reflected primary light beams from the via the beam splitting means, and the optical means, and eventually onto the projection stopper.

Abstract: An optical projection system includes a non-point white light source for emanating a white light, a source lens for focusing the white light, a source stopper having a source aperture for shaping the white light into a predetermined configuration, an optical means having a reflection surface for reflecting the white light, a field lens for collimating the white light, an array of M.times.N thin film actuated mirrors for changing the optical path of the white light reflected therefrom, a projection stopper having a projection aperture for passing a predetermined amount of the white light, a relay lens system having a plurality of lenses for modulating the size of the predetermined configuration of the white light, a RGB pixel filter for dividing the white light into the primary light beams, a projection lens for projecting the primary light beams and a projection screen for displaying an image made up of M.times.N number of pixels thereon.