$Light Analyzer (need Diffracti$

Reviews of Light Analyzer (need Diffracti

By: Open Source Physics Singapore

List of user reviews and ratings for Light Analyzer (need Diffracti

Total ratings

2.63 (Rating count: 151)

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Review summary

Light Analyzer app offers a novel approach to spectrum analysis using smartphones but is hindered by outdated calibration requirements, poor recognition of common light sources, and unreliable detection of fluorescent lights. Users find the UI unintuitive and the app crashes frequently, while the automatic camera controls and IR filters cause inaccuracies. Despite these issues, some users acknowledge its innovative potential and usefulness under ideal conditions with fluorescent lighting.

Pros

Innovative concept aimed at analyzing light spectra using a smartphone camera.
Works well and produces insightful results when calibrated correctly, especially with fluorescent light sources.
Useful for basic spectrum metering when the conditions are ideal.

Cons

Calibration requires specific light sources like fluorescent and gas lamps, which are outdated and not readily available to many users.
Does not recognize or calibrate properly with common modern light sources; app often fails to detect fluorescent lights despite needing them for calibration.
User interface is poor—lacking camera preview, no clear instructions, and it is difficult to navigate or back out of the app.
Inconsistency and inaccuracy in readings due to automatic camera features and IR filters in phone cameras affecting measurements.
App crashes or freezes frequently, reducing reliability and usability.

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User Reviews

Recent rating average: 2.20

All time rating average: 2.63

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40% (8)

Date	Author	Comment
2023-10-05	j *****	This app is ingenious. I think the developers are on to something here. After lots of effort and lots of trials and errors, I finally got this app to work for me. I couldn't get consistent results with my homemade contraption, but I did get it to work. My suggestion is they are going to have to make-and-sell the adapter that fits on the cell phone. Next, they will have to find a way to calibrate the app to adjust for different cell phone cameras. This way, the user will get good results.
This app is ingenious. I think the developers are on to something here. After lots of effort and lots of trials and errors, I finally got this app to work for me. I couldn't get consistent results with my homemade contraption, but I did get it to work. My suggestion is they are going to have to make-and-sell the adapter that fits on the cell phone. Next, they will have to find a way to calibrate the app to adjust for different cell phone cameras. This way, the user will get good results.
2023-02-28	Ma*****	Does not work. Placed diffraction grating over lens, aimed at fluoro, pressed "Calibrate" and it reported fluoro light does not exist. Tried several lights in the home. Rotated the grating at angles to see if this made a difference Nope.
Does not work. Placed diffraction grating over lens, aimed at fluoro, pressed "Calibrate" and it reported fluoro light does not exist. Tried several lights in the home. Rotated the grating at angles to see if this made a difference Nope.
2022-06-23	Pa*****	Could have been a useful tool. A wasted opportunity. The calibration procedure requires you to point the camera at a flourescent light and then at a gas lamp. It's 2022. I don't have any gas lamps lying around and my last CFL was replaced years ago.
Could have been a useful tool. A wasted opportunity. The calibration procedure requires you to point the camera at a flourescent light and then at a gas lamp. It's 2022. I don't have any gas lamps lying around and my last CFL was replaced years ago.
2022-05-31	Ro*****	Needs to point on several light sources for calibration like fluorescent light, gas lamp... I stopped at gas lamp, Where will I get gas lamp in this age.
Needs to point on several light sources for calibration like fluorescent light, gas lamp... I stopped at gas lamp, Where will I get gas lamp in this age.
2022-03-07	St*****	White line on spectrograph impossible to read. Axis need to be adjustable.
White line on spectrograph impossible to read. Axis need to be adjustable.
2022-01-25	WA*****	Very insightful, thank you!
Very insightful, thank you!
2022-01-20	ma*****	It works only with fluorescent lamp. When I find it out towards other lamps it doesn't work.
It works only with fluorescent lamp. When I find it out towards other lamps it doesn't work.
2021-03-22	Ea*****	Garbage. Would even see a florescent light to calibrate it. And froze up after not seeing a light. Had to close app from back ground.
Garbage. Would even see a florescent light to calibrate it. And froze up after not seeing a light. Had to close app from back ground.
2021-03-19	mi*****	No fluorescent light found during calibration. Note10+
No fluorescent light found during calibration. Note10+
2021-03-06	Co*****	Update the "point at a gas lamp" to point at light source. That way it's not confused with calibrate.
Update the "point at a gas lamp" to point at light source. That way it's not confused with calibrate.