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The paper examined the red laser's output and found it was 1.7 milliwatts. This is four times the Class 1 limit of <0.39 mW, and is 1.7 times the Class 2 limit of <1 mW. The laser should have been classified as Class 3R (<5 mW limit).
The author notes that according to the European standard EN 62115:2020, and guidance from Public Health England, laser toys should be Class 1. At four times the Class 1 limit, this toy's "radiation may be hazardous, especially when looking into the beam for long periods."
From Mlynczak, Jaroslaw. "Laser toys fail to comply with safety standards – case study based on laser product classification" Advanced Optical Technologies , no. (2021). https://doi.org/10.1515/aot-2020-0072
COMMENTARY FROM LASERPOINTERSAFETY.COM
We do not dispute Mlynczak's technical findings. However, there are some misleading or false statements in the paper that we would like to address.
- An erroneous title; it should be "Laser toy fails to comply…" The case study is not about "toys" plural. It covers only one sample of one toy rifle which had a laser aiming device that was found to be misclassified.
- Stating that the toy laser's output power (1.7 mW) is illegal, when it may have been legal or close to legal (within 0.7 mW) at time of sale.
- Calling the laser's light output "radiation" 14 times and never using the more precise term "light," thus giving a misleading impression the hazard might be similar to that of X-radiation or nuclear radiation.
- Stating without any proof or reference that children "will usually try to look directly into the laser beam."
- Stating without any proof or reference that children "could have temporary disturbances of vision… lead[ing] to a tragedy."
- Stating without any proof or reference that there is such a thing as "hypersensitivity to laser radiation."
- Stating without any proof or reference that "the described laser toy… [is] easily available and [is] still sold as toys in many European states."
- Listing in the References studies claiming laser "toy" injuries, which actually were from standard, non-toy laser pointers.
Details are below:Click to read more...
The study looked at 77 case reports of laser eye injuries in children. In four of the cases there were reported psychological or behavioral issues.
In addition, the authors had experience with four children with laser eye injuries; in three of these cases there were psychological or behavioral issues.
One of the authors sent a survey to 990 consulting ophthalmologists in the U.K. This found 159 cases of macular injury due to "misuse of a handheld laser device," with 80% of those injured being children or teenagers. In 35% of the cases, the injury was self-inflicted; in 36% it was caused by a third-party. (The remaining 29% seem to be uncategorized although the paper notes that "there were no cases of assault reported." In 67% of the cases where the laser power was known, it was under 50 milliwatts.
The paper cautions that the actual number of laser injuries seen by the ophthalmologists may be higher: "A limitation was the poor response rate and thus data so obtained do not provide the true incidence and clinical features of such cases."
Click to read more...
UK: "Call for evidence" response summarizes many groups' views on laser eye, plane incidents; sets forth actions
The U.K. government published on January 8 2018 a 14-page report on laser pointer safety and potential regulation. The report includes two new actions the government will take to reduce the number and risk of unsafe laser pointers:
1) “strengthening safeguards to stop high-powered lasers entering the country”, and
2) “working with manufacturers and retailers to [voluntarily] improve labeling.
Separately, the U.K. government published the Laser Misuse (Vehicles) Bill on December 20 2017. This makes it illegal to point a laser at vehicles, with a prison term of up to five years and an unlimited fine.
“Laser pointers: call for evidence - government response”
From August 12 to October 6 2017, the Department for Business, Energy and Industrial Strategy opened a “Call for Evidence” consultation. BEIS set forth 19 questions, asking the public to give their views on laser pointer hazards and what actions to take.
The January 8 2018 government response summarizes the 265 responses received.
The report is especially useful because it incorporates the views of many disparate groups: pilots (64% of respondents), “concerned members of the public” (14%), professional laser safety advisors (9%), users of laser pointers (6%), ophthalmologists (6%), and Trading Standards authorities (2%).
The report then distills these views, finding surprising commonality. It is a good overview for the non-expert on two topics:
1) Actual laser pointer hazards — separating fact from fear
2) Potential actions to reduce the number and severity of laser pointer injuries and incidents — including what actions may not work (e.g., licensing).
We have summarized the findings below (click the “read more” link). However, reading the complete document is well worth the time of anyone interested in this issue.
Click to read more...
In addition, “new measures are also being introduced to tackle the sale of unsafe pointers, including more stringent testing.”
The move was supported by the British Air Line Pilots Association (BALPA).
It may help reduce the number of laser pen illuminations of trains (578 incidents were reported between April 2011 and November 2017) and eye injuries (more than 150 reported since 2013, mainly involving children).
Consumer Minister Margot James said the ministry is “going further than ever before” to police the sale of unsafe lasers.
The Argus quoted Professor John O’Hagan, of Public Health England’s laser and optical radiation dosimetry group.He said: “Over time we have become increasingly concerned about the dangers of growing numbers of unlabelled and incorrectly labelled high power laser pointers being bought by the public. It is tragic that we continue to see eye injuries, especially in children. Laser safety experts at Public Health England have worked closely with local authorities in stopping large numbers of these lasers reaching UK consumers. The extra protections proposed should help even further - if you have a laser and you don’t need it, remove the batteries and get rid of it.”
From The Telegraph and The Argus. The stories seem to be a result of the U.K. government publishing, on January 8 2018, a response to their fall 2017 Call for Evidence. The government response included the increased import enforcement actions.
See also the December 2017 news of a new U.K. law that provides stronger penalties for aiming at aircraft. The new import/consumer initiative seems to be part of the government thrust against illegal and overpowered laser pens.
For details, see this LaserPointerSafety.com article in the non-aviation incident section of our news coverage. We are cross-referencing the article in this section as well, for persons who are looking for articles about scientific studies of laser eye injuries.