Lenses (except ophthalmic) manufacturing · Colorado

Rainbow Research Optics, LLC

Centennial, CO · ~49 workers · 7 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.1
Avg TCR
3.3
Industry avg
0
Fatalities

The verdict

Rainbow Research Optics, LLC runs at 123% of its industry's injury rate - more dangerous than the typical Lenses (except ophthalmic) manufacturing workplace, earning a grade D.

D
Poor Safety Record
4.1
avg TCR · per 100 workers
3.3
industry benchmark (BLS)
9
recordable injuries tracked

Grade compares Rainbow Research Optics, LLC's OSHA Total Case Rate of 4.1 to the Lenses (except ophthalmic) manufacturing BLS benchmark of 3.3 (123% of benchmark) across 7 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.

Injury rate over time

Rainbow Research Optics, LLC's yearly Total Case Rate, against the 3.3 industry benchmark.

-5051015 2017201820202021202220232024 03.3 Industry benchmarkRainbow Research Optics, LLC TCR
Total Case Rate (recordable injuries per 100 full-time workers), OSHA ITA Form 300A. Industry benchmark: BLS IIF, NAICS 333314.

Where Rainbow Research Optics, LLC falls in its industry

186 Lenses (except ophthalmic) man establishments

Safer than 9% of graded establishments in this industry, whose median TCR is 1.3.

More dangerous than peersSafer than peers

Narrower to Colorado alone (the establishments it most directly competes with for workers and contracts): ranked #9 safest of 9 Lenses (except ophthalmic) man employers in Colorado.

Trend analysis for Rainbow Research Optics, LLC

Between 2017 and 2024, Rainbow Research Optics, LLC's Total Case Rate improved from 9.0 to 0.0 recordable injuries per 100 full-time workers, a 100% decrease across 7 years of OSHA reporting.

The safest year on record was 2022, at a TCR of 0.0, while 2021 saw the highest rate, at 9.6, a spread of 9.6 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.

Summed across those 7 reporting years, Rainbow Research Optics, LLC recorded 9 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 7-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.

Verify This Employer with OSHA

The 9 injuries, 1 illnesses shown on this page for Rainbow Research Optics, LLC are sourced from its own 7 years of mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.

Verify on OSHA Establishment Search

Source: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 333314 - Lenses (except ophthalmic) manufacturing.

DART Rate, Transparent Calculation (2024)

What is the DART rate formula?

DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.

0 DART incidents × 200,000 ÷ 77,732 hours worked = 0.00 DART

Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping

Cross-Validating Context, Establishment vs Industry vs State

Benchmark TCR Source
Rainbow Research Optics, LLC (this establishment) 4.06 OSHA ITA Form 300A, 7-year avg
Gun sights, optical, manufacturing industry avg 3.30 BLS IIF, NAICS 333314
Colorado state avg (all industries) 5.41 OSHA ITA, state-level rollup

Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program

Reportable Incident Timeline

Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Rainbow Research Optics, LLC to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.

Source: OSHA Inspection Information System (IMIS) - inspection case-number records

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 2.5 0.0 1 0 0
2022 0.0 0.0 0 0 0
2021 9.6 0.0 1 0 0
2020 4.7 2.3 1 1 0
2018 2.8 1.4 2 0 0
2017 9.0 0.0 4 0 0

What this grade means for you

Use this grade as a relative read on Rainbow Research Optics, LLC's reported OSHA injury record versus its Lenses (except ophthalmic) manufacturing peers, not a verdict on whether any single site is safe today.

  • At 123% of the Lenses (except ophthalmic) manufacturing benchmark, Rainbow Research Optics, LLC reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
  • Judge this record against the wider Lenses (except ophthalmic) manufacturing sector, where injury rates vary widely, before comparing it in isolation. See the industry
  • Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another

Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.

Frequently Asked Questions

What is Rainbow Research Optics, LLC's safety grade?
Rainbow Research Optics, LLC has a safety grade of D (Poor Safety Record). This grade is based on their average Total Case Rate (TCR) of 4.1 compared to the BLS industry benchmark of 3.3 for Lenses (except ophthalmic) manufacturing.
How many injuries has Rainbow Research Optics, LLC reported?
Rainbow Research Optics, LLC has reported 9 total injuries and 0 fatalities across 7 years of OSHA data (2024, 2023, 2022, 2021, 2020, 2018, 2017). This data comes from mandatory OSHA Injury Tracking Application (ITA) reports.

Similar Employers

Matched by safety record across the industry, by workforce size within Colorado, and by nearby establishments in Centennial - a different peer set than the category browse links below.

Similar TCR (~4.1)

Similar size (~49 workers)

Nearby in Centennial

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022, 2021, 2020, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainSafetyScore Editorial

Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.