Demonstration device for bending direction of light ray in negative gradient temperature field and experimental method

• Main Authors: HUANG YUHONG, MIAO RUNCAI, ZHANG ZONGQUAN, YANG ZONGLI, LU BAIZUO, LIU ZHICUN, REN JUNPENG
• Format: Patent
• Language: English
• Published: 23.09.2015
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; PHYSICS; PLANETARIA; SEALS

The invention discloses a demonstration device for bending directions of light rays in a negative gradient temperature field. The demonstration device comprises a base, wherein a transparent water tank filled with water is arranged on the base, the right outer side surface of the transparent water tank in the length direction is sprayed with a white paint layer, a semiconductor refrigerating chip bracket provided with a semiconductor refrigerating chip is arranged in the transparent water tank, the upper surface of the semiconductor refrigerating chip is a cold surface, the lower surface is a hot surface, the semiconductor refrigerating chip bracket and the semiconductor refrigerating chip are immersed in water, a laser device bracket provided with a semiconductor laser device and a cylindrical lens is arranged at the left side of the transparent water tank on the base, and the center line of the cylindrical lens is vertical to the horizontal plane and is vertical to laser beams emitted by the laser device in the same vertical plane. The demonstration device for the bending directions of the light rays in the negative gradient temperature field adopting the structure has the advantages of being simple in structure, fast in gradient temperature field establishing speed, stable in gradient temperature field, obvious and direct in demonstration effect, and capable of serving as the optical demonstration and experimental instrument.