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Usage of Vertical Fisheye-Images to Quantify Urban Light Pollution on Small Scales and the Impact of LED Conversion

Stefan Wallner
2019 Journal of Imaging  
The aim of this work was to develop an easy and quick technique for characterizing various lighting situations, that is, single lamps or illuminated signs and to quantify impacts on small scales like streets  ...  the illumination on surroundings, that is, street surfaces, sidewalks and buildings, was performed.  ...  Conflicts of Interest: The author declares no conflict of interest.  ... 
doi:10.3390/jimaging5110086 pmid:34460509 fatcat:ip6bkx722vdjha4k72fskotifq

Page 499 of The Electrical Review Vol. 72, Issue 1843 [page]

1913 The Electrical Review  
Looking towards the gas lamps, and then up Portland Street, there was very little difference to the eye, whatever the photometer might show. Dr.  ...  The difference between the illumination of the two streets, and between the uniformity of distribution, was imperceptible without a photometer, and the price was in favour of electricity.  ... 

Page 210 of None Vol. 128, Issue 3331 [page]

1919 None  
Remember that it is only OSRAM LAMPS bearing tie initials G.E.C. which are of genuine manufacture. Look for G.E.C. on every OSRAM Lamp you buy.  ...  The Saturday Review 30 August 1919 Look for these Initials They are your guarantee. They prove that the | OSRAM you buy is the British Lamp made in | London by the General Electric Company, Ltd.  ... 

Page 97 of The English Illustrated Magazine Vol. 40, Issue 67 [page]

1908 The English Illustrated Magazine  
Just as I was beginning to gain on him, I noticed that he was making directly for a lamp-post at the corner of the street, and as it seemed to me that a personal encounter between a man and a lamp- post  ...  we can’t have people a-bowlin’ lamp-posts over like that! So just yer comalongerme! ” The stranger turned and looked the Majesty of the Law over from head to No, 67. October, 1908.  ... 

Page 570 of Saint Nicholas; A Magazine for Boys and Girls Vol. 9, Issue 7 [page]

1882 Saint Nicholas; A Magazine for Boys and Girls  
There is a small space between their points, and this space is filled with fire. Look at the other parts of the rods, or the copper wires that extend along the streets.  ...  They are allowed to burn until the men have walked about in the streets and looked at each lamp. If all are burning well, they are put out till it begins to grow dark.  ... 

Page 22 of The Black Cat; A Monthly Magazine of Original Short Stories Vol. 25, Issue 6 [page]

1920 The Black Cat; A Monthly Magazine of Original Short Stories  
The odor displeased him and he hurried back into the street. He soon found himself before a furni¬ ture display window, looking at iron beds.  ...  Later he gazed into a window, the central object of which was a big green lamp with elaborate moss rose trimmings. A wretched woman was also looking at the display.  ... 

Page 157 of None Vol. 1, Issue 2 [page]

1916 None  
The subject walked down the traffic line midway between the center of the street and the curb, holding a presselle in each hand.  ...  Auditory rather than visual stimuli were used because they left the subject free to look down the street as he would normally.  ... 

Page 297 of None Vol. 128, Issue 3335 [page]

1919 None  
Remember that it is only OSRAM LAMPS bearing the initials G.E.C. whieh are of genuine manufacture. Look for G.E.C. on every OSRAM Lamp you buy.  ...  Advt. of the General Electric Co., Ltd., 67 Queen Victoria Street, London, E.C. 4. ——<——_  ... 

Page 155 of All the Year Round Vol. 15, Issue 357 [page]

1866 All the Year Round  
Between those you must pass, or wait indefinitely. Off with you for the lamp-post, and Heaven speed ou. Welldone! You may now take breath efore you attempt the other half of your bold feat.  ...  Use the bless- ing as it is intended. Look out, be careful! Now you have an opportunity! There is a space of five yards between that bus and the head of the following cab-horse.  ... 

Page 35 of Journal of Pharmaceutical Sciences Vol. 71, Issue [page]

1944 Journal of Pharmaceutical Sciences  
The necessary dim-outs along our coast have given us very dramatic figures as to the relation between light and safety on our streets.  ...  Street Lighting Of the 3,000,000 street lighting lumi- naries now in use, about 90% are largely obsolete . . . if you measure the value of street lighting in terms of provid- ing the type of lighting which  ... 

Page 8 of Coopers & Lybrand Journal Vol. 18, Issue 1 [page]

1937 Coopers & Lybrand Journal  
We look in vain for the cobble-stone paving in the streets, or for the horse cars with the floor carpeted with straw or hay in the winter time.  ...  In 1887 and for many years there- after, the financial institutions of the City, with a few exceptions, were in the vicinity of Chestnut and Walnut Streets between Second and Sixth Streets.  ... 

Page 2 of The Electrical Review Vol. 62, Issue 1579 [page]

1908 The Electrical Review  
line between two adjacent lamps, and further, as far as the illumination of vertical surfaces is concerned, the man in the street only notices the effect of one of them.  ...  Such an observer, if asked to give an opinion on the lighting, would first of all look at the ground to see if obstructions or inequalities of the road are properly defined, and then look along the street  ... 

Page 161 of Friends' Intelligencer Vol. 58, Issue 10 [page]

1901 Friends' Intelligencer  
EEELETERE at] Tl The Lamp of Steady Habits The lamp that doesn’t flare up or smoke, or cause you to use ages the lamp that looks good when vote get it an good; the lamp that you never willingly part wit  ...  To make sure the lamp Sioret oa iene is > look for the name on it; every lamp has it. on make oil stoves too, just as good as the lam: in fact, anything in oil wale fixtures. os THE ROCHESTER LAMP Co.,  ... 

Page 186 of The Electrical Review Vol. 16, Issue 379 [page]

1885 The Electrical Review  
But if we look a little more closely we observe, to the annoyance of our eyes, that the light radiating from the glow lamps is throw!  ...  I have already mentioned that the impression of streets lighted up with electric lamps corresponds with that of gas lamps, save in one point.  ... 

Page 16 of Friends' Intelligencer Vol. 58, Issue 1 [page]

1901 Friends' Intelligencer  
To make sure the lamp a u is genuine, look for the name on it; every w Roch ochester lamp has it. . make oil aoeee too, just as good as the lamps; in fact, anything in oil or gas fixtures.  ...  Broad St. ] Hila ‘The Lamp of Steady Habits: The lamp that doesn’t flare up or smoke, or cause you to use age ae ap tee looks good when voles get it an the lamp that you never willingly part wit once pe  ... 
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