42/43/50mm Concave lens optical glass reducer biconcave lens physics experiments
USD 12.12 USD
Specifications
| Brand | Unbranded |
| Type | lens |
| Country Of Origin | China |
The light rays follow the law of reflection of light. A concave mirror can not only make parallel light rays converge at the focal point, but also make the light rays emitted from the focal point reflect into parallel light.
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