This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus. |
This article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: |
|||||||||||||||||||||||||||||||||||
|
This page has archives. Sections older than 365 days may be automatically archived by ClueBot III when more than 2 sections are present. |
The applications list in the lead is currently
I dropped horticulture, because it's really an abuse of the concept--color temperature is specifically with respect to the human eye, and photosynethesis has a different spectral response.
I have my doubts about the manufacturing and astrophysics items in the list. Certainly, a manufacturing plant needs lighting, but so do lots of other spaces and they all fall under lighting. And if you are manufacturing something that is supposed to be a particular color, you need to make sure you look at it under a specified light source(s), but color temperature isn't an adequate spec for that.
[Incorrect comments about astrophysics deleted; see new comment below]
For the rest, of the applications, it would be cool to link to where color temperature is discussed in articles about each. But that could be a project for another day. Ccrrccrr ( talk) 23:22, 14 April 2023 (UTC)
Also for temperature measurement. North8000 ( talk) 00:02, 15 April 2023 (UTC)
I'm afraid I don't agree that it is "really an abuse of the concept" to discuss the horticultural applications. I actually looked to this article to learn something pertinent to my job, only to find that even a hint of such uses has been deliberately removed, based on what seems to me to be classic WP:OR. I was, at the time, at work holding a very expensive grow light bulb in my hand, that listed and also graphed the color temrature of the unit on the packaging, and I wanted to learn more as I am taking over supervising lighting systems at the cultivation facility I work at, and we're trying to figure out why previous persons in charge of these things made the decisions they did. The article was indeed helpful to me and I plan to use some of the images in it to make a presentation to the owners of the company, but I have to believe there must be some sources that discuss the uses of color temperature in grow lights. While plants obviously don't have eyes, the quality of the light you provide to them in different stages of their life is critically important to the final product in terms of vigor and yield. Beeblebrox ( talk) 04:38, 7 August 2023 (UTC)
Based on the previous discussion, it's seems like we are collectively unsure that the color scale used in the table of sources is accurate. It seems like the development of it may have been OR, and perceptually, it doesn't seem to be working for people. it's also distinctly different from the scale used to communicate the idea in the energy star labeling standard. Trying to do better is hard, especially given chromatic adaptation. So I think we need to drop the colors.
Here's a draft of a new version of the table: User:Ccrrccrr/sandbox. Any discussion before I put it in the article? Also why is it a template rather than being directly in the article? I'm not sure what the policy is about that. It doesn't seem to be used anywhere else. Ccrrccrr ( talk) 02:26, 28 April 2023 (UTC)
This article contains some useful information, but sadly contains a large amount of text that has had "citation needed" tags for 11 years. We really need find sources for this text or remove the text from the article (no matter how reasonable or accurate it seems). Ashmoo ( talk) 13:36, 22 November 2023 (UTC)
White point is assumed as 6500K in both scale picture and Template:Color temperature, but 6500K is a really obviously bluish light in fact. I think 5500K will be a more accurate white point. For example, my all screens are obviously less bluish than 6500K lamps but also less warm than 4000K lamps, i don't have a 5000K/5500K lamp to compare but i think they are about 5500K. Can anyone update this image and template to make the white point 5500K (or more preferably make the template allow custom white points, and even gammas)? (The lowest and highest values given must also be changed, and even the current lowest value is wrong (it does not give pure red). This discussion is more about the image and template but i think discussing it there can be make it more centralized.) RuzDD ( talk) 13:18, 6 February 2024 (UTC)
Of course "white" is just a word with varying definitions. Maybe clear day noon sun is a good one. But I do agree that 5500 is closer to the overall norm than 6500. North8000 (
talk) 15:28, 6 February 2024 (UTC)
@ RuzDD: I think we need to focus this discussion. To do that, could you specify exactly what your proposed change is? Sincerely, North8000 ( talk) 03:39, 7 February 2024 (UTC)
This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus. |
This article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: |
|||||||||||||||||||||||||||||||||||
|
This page has archives. Sections older than 365 days may be automatically archived by ClueBot III when more than 2 sections are present. |
The applications list in the lead is currently
I dropped horticulture, because it's really an abuse of the concept--color temperature is specifically with respect to the human eye, and photosynethesis has a different spectral response.
I have my doubts about the manufacturing and astrophysics items in the list. Certainly, a manufacturing plant needs lighting, but so do lots of other spaces and they all fall under lighting. And if you are manufacturing something that is supposed to be a particular color, you need to make sure you look at it under a specified light source(s), but color temperature isn't an adequate spec for that.
[Incorrect comments about astrophysics deleted; see new comment below]
For the rest, of the applications, it would be cool to link to where color temperature is discussed in articles about each. But that could be a project for another day. Ccrrccrr ( talk) 23:22, 14 April 2023 (UTC)
Also for temperature measurement. North8000 ( talk) 00:02, 15 April 2023 (UTC)
I'm afraid I don't agree that it is "really an abuse of the concept" to discuss the horticultural applications. I actually looked to this article to learn something pertinent to my job, only to find that even a hint of such uses has been deliberately removed, based on what seems to me to be classic WP:OR. I was, at the time, at work holding a very expensive grow light bulb in my hand, that listed and also graphed the color temrature of the unit on the packaging, and I wanted to learn more as I am taking over supervising lighting systems at the cultivation facility I work at, and we're trying to figure out why previous persons in charge of these things made the decisions they did. The article was indeed helpful to me and I plan to use some of the images in it to make a presentation to the owners of the company, but I have to believe there must be some sources that discuss the uses of color temperature in grow lights. While plants obviously don't have eyes, the quality of the light you provide to them in different stages of their life is critically important to the final product in terms of vigor and yield. Beeblebrox ( talk) 04:38, 7 August 2023 (UTC)
Based on the previous discussion, it's seems like we are collectively unsure that the color scale used in the table of sources is accurate. It seems like the development of it may have been OR, and perceptually, it doesn't seem to be working for people. it's also distinctly different from the scale used to communicate the idea in the energy star labeling standard. Trying to do better is hard, especially given chromatic adaptation. So I think we need to drop the colors.
Here's a draft of a new version of the table: User:Ccrrccrr/sandbox. Any discussion before I put it in the article? Also why is it a template rather than being directly in the article? I'm not sure what the policy is about that. It doesn't seem to be used anywhere else. Ccrrccrr ( talk) 02:26, 28 April 2023 (UTC)
This article contains some useful information, but sadly contains a large amount of text that has had "citation needed" tags for 11 years. We really need find sources for this text or remove the text from the article (no matter how reasonable or accurate it seems). Ashmoo ( talk) 13:36, 22 November 2023 (UTC)
White point is assumed as 6500K in both scale picture and Template:Color temperature, but 6500K is a really obviously bluish light in fact. I think 5500K will be a more accurate white point. For example, my all screens are obviously less bluish than 6500K lamps but also less warm than 4000K lamps, i don't have a 5000K/5500K lamp to compare but i think they are about 5500K. Can anyone update this image and template to make the white point 5500K (or more preferably make the template allow custom white points, and even gammas)? (The lowest and highest values given must also be changed, and even the current lowest value is wrong (it does not give pure red). This discussion is more about the image and template but i think discussing it there can be make it more centralized.) RuzDD ( talk) 13:18, 6 February 2024 (UTC)
Of course "white" is just a word with varying definitions. Maybe clear day noon sun is a good one. But I do agree that 5500 is closer to the overall norm than 6500. North8000 (
talk) 15:28, 6 February 2024 (UTC)
@ RuzDD: I think we need to focus this discussion. To do that, could you specify exactly what your proposed change is? Sincerely, North8000 ( talk) 03:39, 7 February 2024 (UTC)