Patent ID: 9638990
Date: 2017-05-02
CPC Classifications: G03B

Claim:
1. A projector device comprising: a luminous tube made of quartz glass including a luminous part and a pair of sealing parts, the luminous part having at least enclosed mercury therein and a pair of electrodes disposed to face each other, the pair of sealing parts extending from the luminous part in opposite directions to each other; a concave reflecting mirror in which the luminous tube is disposed inside; and an optical unit for projecting an image by utilizing light emitted from the concave reflecting mirror, wherein the luminous tube is disposed to direct a center axis in a longitudinal direction of the pair of electrodes in a vertical direction, wherein an angle between the center axis in the longitudinal direction of the pair of electrodes and the vertical direction is less than 45° and more than 0°, and wherein a region of the image projected from the optical unit is a horizontally long rectangle.