Cheap and easy to use red laser pointer
Although there are a large number of laser pointers on the market, the green laser pointer is a perfect part of astronomical starry sky observation, pointing, constellation observation, etc. The green laser pointer emits laser light and has excellent performance in terms of laser beam angular width and beam divergence. It always projects a diverging green laser beam in the dark, which can easily pass through the atmosphere and reach directional objects. There are conventional 405nm blue-violet lasers, 650nm and 635nm red lasers, but the green laser pointer is the only choice for amateurs and astronomy professionals because the green laser beam is the most eye-catching. The green high powered laser pointer is represented by high coherence, high directivity, and high brightness, and has excellent collimation and alignment advantages. The green laser pointer can emit the most sensitive 532nm green light, and the human eye can achieve the best effect by displaying the operation of focusing at a long distance.
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Junior and amateur astronomers usually use low-power green lasers to point at astronomical stars, which are props for astronomical research. The most obvious laser beam can reach target stars, low-level clouds and constellation objects in the shortest time. The green laser pointer is particularly noticeable at night and can reach at least 5-10 kilometers in the dark. Easy to use, free to point out constellations. Inexpensive high-power laser pointers are ineffective for astronomical purposes. The beams emitted by these lasers are too weak to be easily blocked by fog, smoke and ambient light. In the worst conditions, the high-power laser pointer beam is easily displayed at night, and the high-power mode remains visible during the day. Very suitable for sunrise and sunset astronomy.
2021-11-12 09:00:17
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