欢迎使用光谱数据计算器
Calculate CIE 1931 xy Coordinates from Spectral Power Distribution (SPD)
Calculate CIE 1931 xy Coordinates from Spectral Power Distribution (SPD)
This online CIE 1931 xy calculator takes a spectral power distribution (SPD) input in either 1 nm or 2 nm resolution, and calculates the CIE 1931 xy coordinates. Click on "Input SPD" to load your SPD. Several notes on the SPD input:
- For best results, copy and paste irradiance data from a spreadsheet program or plain text editor, with line breaks between each wavelength data point.
- Wavelength range is 380 - 780 nm.
- Irradiance values are in arbitrary units. The calculator will automatically normalize all values.
SPD Input
CIE 1931 xy Result:
-Calculated CRI General (R1-R8):
-Calculated CRI Extended (R1-R15):
-CRI Individual R Values Result
- Score:
- 25
- 50
- 75
- 100
- R1
- R2
- R3
- R4
- R5
- R6
- R7
- R8
- R9
- R10
- R11
- R12
- R13
- R14
- R15
Laser Safety Classification Guide(IEC 60825-1:2014)
Continuous Wave (CW) Laser Safety Evaluation
- Determine that the laser output is Continuous Wave (CW).
- Select the laser class and choose the appropriate time base (refer to 4.3.e).
- Determine the Accessible Emission Limit (AEL) for the selected time base.
- Compare the measured emission level with the AEL:
- If the measured value is ≤ AEL, the laser meets the class requirements.
- If the measured value is > AEL, choose a higher class and repeat the calculations until compliance is achieved.
- If further evaluation for compliance with a lower class is needed, perform additional calculations. Otherwise, the process is complete.
Single Pulse Laser Safety Evaluation
- Determine that the laser output is a single pulse.
- Select the laser class and choose the appropriate time base.
- Determine the AEL for a single pulse (AELSingle) and the AEL based on the time base (AELS,T).
- Choose the smaller value of AELSingle and AELS,T for evaluation.
- Compare the measured emission level with the chosen AEL:
- If the measured value is ≤ AEL, the laser meets the class requirements.
- If the measured value is > AEL, choose a higher class and repeat the calculations.
- If further evaluation for compliance with a lower class is needed, perform additional calculations. Otherwise, the process is complete.
Repetitively Pulsed Laser Safety Evaluation
- Determine that the laser output is repetitively pulsed.
- Select the laser class and choose the appropriate time base.
- Determine the AEL for a single pulse (AELSingle) and the AEL based on the time base (AELS,T).
- Check if multiple pulses occur within the period Ti (refer to Table 2):
- If yes, calculate the maximum allowable number of pulses (Nmax).
- Use Note 2 to calculate the pulse train AEL (AELp,train): AELp,train = AELSingle × Cp.
- Compare the measured emission level with the smallest value among:
- AELSingle
- AELS,T
- AELp,train
- If the measured value is ≤ the smallest AEL, the laser meets the class requirements. Otherwise, choose a higher class and repeat calculations.
- If further evaluation for compliance with a lower class is needed, perform additional calculations. Otherwise, the process is complete.
Class 1M and 2M Laser Safety Evaluation
- Choose the initial class of the laser: Class 1, Class 2, Class 3R, or Class 3B.
- Select the applicable time base (refer to 4.3.e).
- Determine the AEL for the chosen class.
- Measure the laser output according to Condition 1 (see Table 10).
- Compare the measured laser output with the AEL for Condition 1:
- If the laser output is ≤ AEL, the laser meets the class requirements.
- If the laser output is > AEL, choose a higher class (e.g., Class 3B or Class 4) and repeat calculations.
- If required, check whether the laser could satisfy the AEL of a lower class and repeat calculations.
- If needed, verify whether the laser could be classified as Class 1M or Class 2M:
- Measure the laser output under Condition 3 (see Table 10) and compare with the AEL for Class 1 or Class 2.
- If the output is ≤ AEL, the laser is classified as Class 1M or Class 2M.
- If the output is > AEL for Class 1 or Class 2 but < AEL for Class 3B, the laser is also classified as Class 1M or Class 2M.
- If neither condition is met, the laser is not classified as Class 1M or Class 2M.
Note:
- AELSingle: Accessible Emission Limit for a single pulse.
- AELS,T: Accessible Emission Limit based on the chosen time base.
- AELp,train: Accessible Emission Limit for a pulse train, considering the pulse count and correction factor Cp.
- T: Time base duration.
- Nmax: Maximum number of pulses allowed within the period Ti.
UV Hazard Calculator (IEC-62471-6:2022)
Input Irradiance Data (200-400 nm)
Results
Actinic UV Hazard (200-400 nm): - W·m⁻²
Actinic UV Hazard (200-315 nm): - W·m⁻²
Hazard Level: -
Spectral Irradiance
Blue Light Hazard Calculator (IEC 62471-7:2023)
Input Radiance Data (300-700 nm)
Results
Blue Light Hazard (300-700 nm): - W·m⁻²·sr⁻¹
Application Group: -
Spectral Radiance
Light Signal Projection Intensity Angle Calculator (GB 5920-2024)
GB 4599-2024 Low Beam Light Distribution Test Chart
| Part | Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | B50L | 3.43L | 0.57U | — | 350 |
| BR | 2.5R | 1U | — | 1750 | |
| Line BLL | 20L~8L | 0.57U | — | 625 | |
| P | 7L | 0 | 63 | — | |
| Zone IIIa | As per Figure 1 | As per Figure 1 | — | 625 | |
| S50+S50LL+S50RR | 8L,0,8R | 4U | 190 | — | |
| S100+S100LL+S100RR | 4L,0,4R | 2U | 375 | — | |
| 75R | 1.15R | 0.57D | 12100 | — | |
| 50R | 1.72R | 0.86D | 10100 | — | |
| 50V | 0 | 0.86D | 5100 | — | |
| 50L | 3.43L | 0.86D | 5000 | 37000 | |
| Line 50 | 6.84L~6.84R | 0.86D | 2540 | — | |
| 40R | 9R | 1.07D | 2800 | — | |
| 40L | 9L | 1.07D | 2800 | — | |
| Line 40RR | 9R~14R | 1.07D | 850 | — | |
| Line 40LL | 14L~9L | 1.07D | 850 | — | |
| Line 25R | 9R~16R | 1.72D | 1180 | — | |
| Line 25 | 9L~9R | 1.72D | 1700 | — | |
| 25V | 0 | 1.72D | 2500 | — | |
| Line 25L | 16L~9L | 1.72D | 1180 | — | |
| Line 15 | 20L~20R | 2.86D | 425 | — | |
| Line 10 | 4.5L~2R | 4D | 500 | — | |
| Line 10 and below | 4.5L~2R | 4D and below | — | 0.8 times 50R point measured value | |
| Part B | B50L | 3.43L | 0.57U | — | 530 |
| Zone IIIa | As per Figure 1 | As per Figure 1 | — | 880 | |
| 50L | 3.43L | 0.86D | 1700 | — | |
| Part | Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | B50L | 3.43L | 0.57U | — | 625 |
| BR | 2.5R | 1U | — | 1750 | |
| Line BLL | 20L~8L | 0.57U | — | 880 | |
| Zone IIIb | As per Figure 1 | As per Figure 1 | — | 880 | |
| S50+S50LL+S50RR | 8L,0,8R | 4U | 190 | — | |
| S100+S100LL+S100RR | 4L,0,4R | 2U | 375 | — | |
| 125R | 1.15R | 0.34D | 12000 | — | |
| 75R | 1.15R | 0.57D | 15200 | — | |
| 50R | 1.72R | 0.86D | — | — | |
| 50V | 0 | 0.86D | 10100 | — | |
| 50L | 3.43L | 0.86D | 6800 | — | |
| Line 50 | 6.84L~6.84R | 0.86D | 2540 | — | |
| 40R | 9R | 1.07D | 2800 | — | |
| 40L | 9L | 1.07D | 2800 | — | |
| Line 40RR | 9R~14R | 1.07D | 850 | — | |
| Line 40LL | 14L~9L | 1.07D | 850 | — | |
| Line 25R | 9R~16R | 1.72D | 1180 | — | |
| Line 25 | 9L~9R | 1.72D | 1700 | — | |
| 25V | 0 | 1.72D | 2500 | — | |
| Line 25L | 16L~9L | 1.72D | 1180 | — | |
| Line 15 | 20L~20R | 2.86D | 425 | — | |
| Line 10 | 4.5L~2R | 4D | 500 | — | |
| Line 10 and below | 4.5L~2R | 4D and below | — | 0.8 times 50R point measured value | |
| Part B | Zone IIIb | As per Figure 1 | As per Figure 1 | — | 880 |
| 50L | 3.43L | 0.86D | 3400 | — | |
| Part | Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | BS0L | 3.43L | 0.57U | 520 | — |
| BR | 2.5R | 1U | — | 2100 | |
| Point BLL | 8L | 0.57U | — | 880 | |
| Line IIIa | 4L~0 | 0 | — | 880 | |
| 75R | 1.15R | 0.57D | 9680 | — | |
| 50R | 1.72R | 0.86D | 8080 | — | |
| 50V | 0 | 0.86D | 4080 | — | |
| 50L | 3.43L | 0.86D | 4000 | 44400 | |
| Line 50 | 6.84L~6.84R | 0.86D | 2032 | — | |
| 40R | 9R | 1.07D | 2240 | — | |
| 40L | 9L | 1.07D | 2240 | — | |
| Line 40RR | 9R~14R | 1.07D | 680 | — | |
| Line 40LL | 14L~9L | 1.07D | 680 | — | |
| Line 25R | 9R~16R | 1.72D | 944 | — | |
| Line 25 | 9L~9R | 1.72D | 1360 | — | |
| 25V | 0 | 1.72D | 2000 | — | |
| Line 25L | 16L~9L | 1.72D | 944 | — | |
| Line 15 | 20L~20R | 2.86D | 340 | — | |
| Line 10 | 4.5L~2R | 4D | 400 | — | |
| Line 10 and below | 4.5L~2R | 4D and below | — | 1 times 50R point measured value | |
| Part B | B50L | 3.43L | 0.57U | 700 | — |
| Line IIIa | 4L~0 | 0 | — | 1135 | |
| 50L | 3.43L | 0.86D | 1360 | — | |
| Part | Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | B50L | 3.43L | 0.57U | — | 880 |
| BR | 2.5R | 1U | — | 2100 | |
| Point BLL | 8L | 0.57U | — | 1135 | |
| Line IIIb | 4L~0.5L | 0.34U | — | 1135 | |
| 125R | 1.15R | 0.34D | 9600 | — | |
| 75R | 1.15R | 0.57D | 12160 | — | |
| 50V | 0 | 0.86D | 8080 | — | |
| 50L | 3.43L | 0.86D | 5440 | — | |
| Line 50 | 6.84L~6.84R | 0.86D | 2032 | — | |
| 40R | 9R | 1.07D | 2240 | — | |
| 40L | 9L | 1.07D | 2240 | — | |
| Line 40RR | 9R~14R | 1.07D | 680 | — | |
| Line 40LL | 14L~9L | 1.07D | 680 | — | |
| Line 25R | 9R~16R | 1.72D | 944 | — | |
| Line 25 | 9L~9R | 1.72D | 1360 | — | |
| 25V | 0 | 1.72D | 2000 | — | |
| Line 25L | 16L~9L | 1.72D | 944 | — | |
| Line 15 | 20L~20R | 2.86D | 340 | — | |
| Line 10 | 4.5L~2R | 4D | 400 | — | |
| Line 10 and below | 4.5L~2R | 4D and below | — | 1 times 50R point measured value | |
| Part B | Line IIIb | 4L~0.5L | 0.34U | — | 1135 |
| 50L | 3.43L | 0.86D | 2720 | — | |
| Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | |
| Imax | — | — | 40000 | 215000 |
| HV | 0 | 0 | 0.8Imax | 215000 |
| 12L-H | 12L | 0 | 1500 | 215000 |
| 9L-H | 9L | 0 | 3400 | 215000 |
| 6L-H | 6L | 0 | 5000 | 215000 |
| 3L-H | 3L | 0 | 17500 | 215000 |
| 3R-H | 3R | 0 | 17500 | 215000 |
| 6R-H | 6R | 0 | 5000 | 215000 |
| 9R-H | 9R | 0 | 3400 | 215000 |
| 12R-H | 12R | 0 | 1500 | 215000 |
| V-2U | 0 | 2U | 1700 | 215000 |
| Part | Test Point | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | Line 1.50 m (Oncoming Vehicle) | 4.8L~2L | 0.57U | — | 625 |
| Line 2.100 m (Oncoming Vehicle) | 2.4L~1L | 0.3U | — | 1750 | |
| Line 3.200 m (Oncoming Vehicle) | 1.2L~0.5L | 0.15U | — | 5450 | |
| Line 4.50 m (Preceding Vehicle) | 1.7L~1.0R | 0.3U | — | 1850 | |
| Line 4.50 m (Preceding Vehicle) | >1.0R~1.7R | 0.3U | — | 2500 | |
| Line 5.100 m (Preceding Vehicle) | 0.9L~0.5R | 0.15U | — | 5300 | |
| Line 5.100 m (Preceding Vehicle) | >0.5R~0.9R | 0.15U | — | 7000 | |
| Line 6.200 m (Preceding Vehicle) | 0.45L~0.45R | 0.1U | — | 16000 | |
| Part B | 50R | 1.72R | 0.86D | 5100 | — |
| 50V | 0 | 0.86D | 5100 | — | |
| 50L | 3.43L | 0.86D | 2550 | — | |
| 25LL | 16L | 1.72D | 1180 | — | |
| 25RR | 11R | 1.72D | 1180 | — | |
| Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | |
| Imax | — | — | 32000 | 258000 |
| HV | 0 | 0 | 0.75Imax | 258000 |
| 12L-H | 12L | 0 | 1200 | 258000 |
| 9L-H | 9L | 0 | 2720 | 258000 |
| 6L-H | 6L | 0 | 4000 | 258000 |
| 3L-H | 3L | 0 | 14000 | 258000 |
| 3R-H | 3R | 0 | 14000 | 258000 |
| 6R-H | 6R | 0 | 4000 | 258000 |
| 9R-H | 9R | 0 | 2720 | 258000 |
| 12R-H | 12R | 0 | 1200 | 258000 |
| V-2U | 0 | 2U | 1360 | 258000 |
| Part | Test Point/Area | Position (°) | Limit (cd) | ||
|---|---|---|---|---|---|
| Horizontal | Vertical | Min | Max | ||
| Part A | Line 1, 50m (Oncoming Vehicle) | 4.8L~2L | 0.57U | — | 880 |
| Line 2, 100m (Oncoming Vehicle) | 2.4L~1L | 0.3U | — | 2100 | |
| Line 3, 200m (Oncoming Vehicle) | 1.2L~0.5L | 0.15U | — | 6540 | |
| Line 4, 50m (Preceding Vehicle) | 1.7L~1.0R | 0.3U | — | 2220 | |
| Line 4, 50m (Preceding Vehicle) | >1.0R~1.7R | 0.3U | — | 3000 | |
| Line 5, 100m (Preceding Vehicle) | 0.9L~0.5R | 0.15U | — | 6360 | |
| Line 5, 100m (Preceding Vehicle) | >0.5R~0.9R | 0.15U | — | 8400 | |
| Line 6, 200m (Preceding Vehicle) | 0.45L~0.45R | 0.1U | — | 19200 | |
| Part B | 50R | 1.72R | 0.86D | 4080 | — |
| 50V | 0 | 0.86D | 4080 | — | |
| 50L | 3.43L | 0.86D | 2040 | — | |
| 25LL | 16L | 1.72D | 944 | — | |
| 25RR | 11R | 1.72D | 944 | — | |
RGB Flux Ratio Calculator (YY 1081-2011)
Spectral Data Input (380-780 nm)
Calculation Results
Red (630-660nm) Ratio: -
Green (515-545nm) Base: - mW
Blue (435-465nm) Ratio: -
Tolerance Range: ±20%