This right angle prism is used to demonstrate retroreflection & can be "silvered" to enhance this effect.
You can use this prism as a trade show giveaway, science fair prize & more. See examples of company advertising glass prism logo paperweights.
Use 2 right angle prisms to make your own laser beamsplitter cube for holography.
A right angle prism, if viewed from the end, is shaped like an isosceles triangle. It has one 90° angle & two 45° angles. If a side of the prism adjacent to the 90° is silvered, light shone towards it will reflect 90°. If both sides adjacent to the 90° are silvered, light will be reflect 180° also known as retroreflection.