Glass stress spot observation lamp box

The utility model discloses a glass stress spot observation lamp box which comprises a workpiece support and a light-emitting part. The workpiece support comprises an obliquely-arranged outer frame, the included angle alpha between the plane where the outer frame is located and the vertical plane is larger than 0 degree and smaller than 20 degrees, a plurality of sets of first supporting rollers are arranged at the bottom of the outer frame, and the axes of the first supporting rollers are perpendicular to the plane where the outer frame is located. The light-emitting part comprises a camera obscura, a light source plate and a transparent mask are arranged at the rear end and the front end of the inner wall of the camera obscura respectively and are arranged in parallel, polarizers are arranged on the outer side of the transparent mask in parallel, light generated by the light source plate is changed into parallel light beams after passing through the transparent mask, and the irradiation route penetrates thr