Multi freedom adjusts formula angle and changes appearance

• Main Author: LYU SHIXIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.06.2018
• 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 utility model discloses a multi freedom adjusts formula angle and changes appearance belongs to geometry utensil field, the utility model discloses simple structure, convenient operation can adjust incident ray's the angle of incidence and incoming position as required wantonly, simultaneou...