| 摘要 |
PURPOSE: A billiard guide apparatus is provided to enable beginners to easily practice billiard and to reduce the installation costs thereof. CONSTITUTION: A billiard guide apparatus comprises a refractor(10), a film(20), a billiard route image, a light source(40), a condenser(50), and a case(60). The refractor is made of glass or transparent resin material transmitting light, is arranged on the top of a billiard table. The film is made of transparent resin material or glass and is arranged on the top of the refractor. The billiards route image is printed on one side of the film. The light source irradiates light to the refractor through the film. The collimator condenses the light irradiated from the light source and irradiates the condensed light to the film. The case receives the refractor, film, and condenser. |
