Patent ID: 6055098
Filing Date: 2000-04-25
Classification: G02B

Abstract:
A periscope comprising:an elongated, vertically oriented housing having a front wall, a rear wall and two side walls, a top end and a bottom end, said front wall having an upper, light receiving opening in communication with an interior chamber, said opening adjacent the top end of said housing, said rear wall including a lower viewing opening adjacent the bottom end of said housing;an upper light reflecting means positioned within said interior chamber for receiving light from said upper opening and for reflecting said light downwardly towards the bottom end of said housing;a second, lower light reflecting means positioned within said interior chamber for receiving light from said first reflecting means and for projecting said light toward said lower viewing opening;an adjustable magnifying means for magnifying light projected to said viewing opening, said magnifying means including a magnifying lens disposed between said upper light reflecting means and said upper opening;a knob rotatably mounted to a side wall of said housing;a worm gear assembly in mechanical communication with said knob and said lens whereby said lens moves towards and away from said upper opening as said knob is rotated.