Cap lamp

A miner wearing a hard hat with an attached cap lamp

A cap lamp is a lamp worn on the head or helmet. It is mostly used in an underground environment, like mines or during outdoor activities, e.g. climbing.

Patent

A patent for a self-adjusting bracket for use with cap lamps was awarded in 1985.[1]

GEN 4 and GEN 5

The two most recent variants of the cap lamp are the GEN 4 and GEN 5 models. The GEN 4 model, approved for use by the Mine Safety and Health Administration (MHSA), uses the headpiece of existing cap lamps, but retrofitted with new LEDs and electronics. The GEN 5 model is very similar to the GEN 4 model except with a more intense spot beam that can illuminate objects that are more than 40 feet away. Since GEN 5 is very similar to GEN 4, it has not been separately approved by MHSA. These lamps will last up to 50 hours with a six-cell battery pack. Energy-saving variants of these models, GEN 4E and GEN 5E, use a single lithium-ion battery.[2]

These new cap lamp variants that use LEDs follows research done by the National Institute for Occupational Safety and Health in the United States, comparing LEDs to traditional incandescent light bulbs, where they found that the LEDs improved hazard detection.[3]

References

  1. ^ 4530112, Cecala, Andrew B. & Volkwein, Jon C., "Self-adjusting cap lamp bracket", published Jul 23, 1985 
  2. ^ "Improved LED Cap Lamp Designs". www.cdc.gov. Retrieved 2017-01-13.
  3. ^ Sammarco, John J.; Pollard, Jonisha P.; Porter, William L.; Dempsey, Patrick G.; Moore, Caitlin T. (2012-07-01). "The effect of cap lamp lighting on postural control and stability". International Journal of Industrial Ergonomics. 42 (4): 377–383. doi:10.1016/j.ergon.2012.04.001. PMC 4604055. PMID 26472917.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.