| 摘要 |
A reflective dot gunsight is disclosed that includes a power generation unit utilizing a hand driven dynamo to provide power. This enables the gunsight to operate independently of the availability of suitable charged batteries, providing a critical advantage in sporting and combat situations. Failure of battery power at a critical moment is a major source of anxiety and forces many users away from the obvious advantages of lighted reflective dot sights. Battery failure can occur suddenly and without warning rendering the reflective dot sight useless. Even if spare batteries are carried, it takes several minutes to replace the battery. The LED lamp in the disclosed gunsight is powered by a non-removable supercapacitor that is charged by a hand cranked dynamo. A few seconds of cranking provides minutes of operation and the device can be recharged to full capacity at any time.
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