Skip to main content

Lighting: Part 1

How often do you think about the quality of your lighting? It can make a big difference in the quality of your environment.

Lighting is mostly noticed when it is unwanted. There is little consideration given to the degree of quality in one's light source. As with most things, our attention is given to the liminal states. 

Direct vs. Indirect

Direct lighting proceeds directly from the source (bulb) to a surface without diffusion or reflection. Indirect lighting is diffusely reflected. As illustrated below.
Examples of direct and indirect lighting. Ensure the light source is pointed toward the ceiling, while the direct light above the experimental area is blocked. It is important to use indirect light during EPM experiments in order to similarly illuminate all four arms without shadows. Please click here to view a larger version of this figure.


The design of the pendant lamp below combines direct and indirect lighting. Light is projected directly downwards and reflected off the inner walls expanding the light's circumference of reach. The surface will be brightest directly below the lamp and further out it will soften. 

This kind of design can be useful. It might be great for a desk lamp, but in general, I prefer more diffusive light. Diffusion is accomplished through an opaque filter, like white plastic or frosted glass. The light seems to glow and projects softened light evenly across a wide surface area. This form of lighting is much gentler and warmer. Still, the quality of the diffusive material is important. Frosted glass has a much better effect than white plastic. The density of the glass is also important, along with its convexity.

 One of my favorite features of my condo is my Flos Glo-Ball (stock picture above). From the Flos website: "Jasper Morrison calls his designs “super normal,” meaning that they do their job well and without disrupting their environment. Designed to invoke the beauty of a full moon, the Glo Ball S proves just how stunning the norm can be." This is achieved by virtue of the way that the halogen bulb is suspended in the middle of a thick, frosted glass sphere. In this manner, the design avoids the inevitable glare that occurs when a bright bulb is placed too near to the diffusive material. By virtue of this distance, light seems to emanate gently in all directions, as if from a moon.

The light fills a room beautifully, evenly, and softly. The Glo-Ball is perfect for my dining room and it really highlights the beautiful food that my wife makes. After dinner, you can dim the lights (see below, this time a wall fixture) and enjoy a movie in the other room or listen to music, etc. In its dimmer settings, the color of the Glo-Ball moves towards a warm yellow/orange; very chic. 


For sconces, semi-indirect (below, left) would be nice in a hallway or dining room but in a family room such a light might grate if you were reclining on the couch. Then you would regret that bare bulb or LED shining in your eye. A diffusive option (below, to the right) seems, once again, to be a more graceful option.


For a reading lamp, you can go either way. Personally, I really like the Holtkotter FLEX LED Floor Lamp (see below). It has a flexible snake arm and it is the only LED lamp that I have found with the warmth and dimming quality of a halogen. Holtkotter used some special kind of plastic that gives just the right tint to the light. 


The lamp has a small button, which serves as a touch dimmer. Tap it once, to turn the light on or off. Hold it, and the lamp slowly dims or, with a successive hold, brightens, and by the subtlest of degrees. Its highest setting is unbelievably bright. Between the fully flexible neck and the rotation of the disk, it is the most versatile lamp that I have owned. 

LED is particularly important for hard-to-reach lights to minimize the frequency of bulb changes. 

Another tip: I like dusk to dawn hall lights, which I put in my bathrooms and kitchen. If you get up at night, they are already on because they are gradually activated by a light sensitivity reader as it gets darker. This way, when you get up to get water or go to the bathroom you don't have to worry about turning on the lights and irritating your "night vision." 



That's enough on lights for today...



Comments

Popular posts from this blog

On Leisure: Part 1

I am never less at leisure than when at leisure, nor less alone than when I am alone.  -Scipio Africanus It occurred to me that it might be well worthwhile to define what I mean by leisure . First and foremost, I think of the quote above. This sense of leisure reaches back to the Greeks and the concept of schole , as in school . Leisure, or schole, is associated with learning, self-cultivation, philosophy, and freedom. In this sense, " Leisure is not the cessation of work, but work of another kind, work restored to its human meaning, as a celebration and a festival ."  This conception of schole is represented in the notion of a Sabbath, a time set aside for contemplation and reflection. In an article titled, "Learning and Leisure: Developing a School of Schole," Christopher Perrin writes:  " In 1948 the German philosopher Josef Pieper wrote a small book (about 130 pages) entitled Leisure the Basis for Culture .  Classical educators need this book.  Pieper does ...

Road Trip Thoughts

 We just returned from an epic road trip. Over a month on the road, we briefly visited Kansas, Nebraska, Texas, and Colorado, and we got to spend some quality time in Wyoming, Idaho, Utah, and New Mexico. We left on short notice and packed in one night. We did a lot right, but I would do a few things differently.  Here are some thoughts and suggestions in no particular order: HDMI cord and ethernet cords: We brought the former and forgot the latter. For security, I recommend that you bring an ethernet cable. If you have an ultrabook like me (no Ethernet port), you can get a USB to Ethernet converter. As for the HDMI cable, most hotels have TVs with accessible HDMI ports; just connect your laptop and stream away. Binoculars: We visited a lot of National and State Parks during the migratory season for many animals. We forgot to bring binoculars! I picked some up at the Yellowstone General Store and boy was I glad. Still, I am sure that it would have been a lot cheaper if I had g...

Crocs on Lock

I was speaking to a friend and fellow aficionado of comfort. He told me that we are in the time of Crocs. He wears them everywhere now and got them for his family too. I set out to find a pair like Batali's, closed and with bright colors. Alas, I settled for a white pair.  I am wearing socks with these because they weren't working for me without them. I have high arches so the top of my foot was rubbing against the rim of the shoe too much. With socks though, I have to say, these are so comfortable! I popped off the Crocs strip so they are streamlined clogs now.  I am a big fan and I love wearing them around the house. These have great traction and cushioning. In cooler weather, I enjoy the classic boiled wool clogs made by Stegmann's but these are great for warmer weather. I can wear the Stegmann's with or without socks. They are also super comfortable; they have a Birkenstock style sole, which is firmer but more supportive. The wool inside is incredibly smooth and sof...