Corinne Bailey Rae at Coachella sporting Paul Frank sunglasses

Corinne Bailey Rae was snapped at last month's Coachella festival wearing Paul Frank sunglasses, namely The Sporting Life. More Coachella bands wearing Paul Frank sunglasses through here...

Lotho handmade acetate sunglasses - you know Yuwano...

Lotho sunglasses are designed in Paris, handmade in Japan. I'm on a bit of role of being introduced to new names and Lotho is my latest happy find.

A young brand, Lotho has some great takes on classic styles such as (top down) Henry, Allie and Aroun (left).

But with this limited edition Yuwano, Lotho's designer, Coco, demonstrates an ability to create something bold and directional, bringing contrasting elements together to dramatic effect.

More ace acetate sunglasses: Tim Van Steenbergen knows his grizzled skipper from his Corsican swallowtail

So it seems I started something when I raved about the acetate used in Derek Lam's 2010 sunglass style, Mauro. For I have now been nudged toward Tim Van Steenbergen's 2010 sunglasses, or more specifically Theo, by Tim Van Steenbergen...

So where do grizzled skippers and Corsican swallowtails come into it? TVS's sunnies are all named after butterflies - hover over each image for Latin and common names. Four more Tim Van Steenbergen shades through here... (or below if you can see them already...)

Christina Aguilera wears Carrera sunglasses in her Not Myself Tonight video

Carrera Endurance sunglasses as seen on Christina Aguilera's video Not Myself Tonight, another one of 'those' videos which is getting the right wing press all hot under the collar. I think last time it was Rihanna wearing these retro 1980s shades... I like the shades. And the highly practical raincoat.

Derek Lam sunglasses enter race for best acetate of 2010

Derek Lam has entered the race for best acetate of 2010 - the blue-black shades at the top are Mauro Lapis and the material looks like a stainglass window... top marks. Middle: Lucy Caram; Bottom: Edie Tort.

Small black oval glasses in Amsterdam - probably by Theo

I love this picture by Paul Somers in Amsterdam. I don't know who makes these glasses - if you look carefully there's a bright green finish to the inside. This shape really suits this guy - great choice.

Screwless, hingeless, jointless, single-piece glasses from Reykjavik Eyes

Regular readers will know I'm quite fanatical about clever technology on your face.

Essentially, the simpler a glasses frame is, the fewer parts it has, the better the material; the more likely it is to be a piece of face furniture for a long time.

So how about these frames from Reykjavik Eyes? No screws, no hinges, no joints, AND it's one piece of strong yet light material. Designed by Gunnar Gunnarson, they look great. And, weighing in at just 2.2g, a bit like a spec of volcanic ash, you'll barely know they are on your nose.

Now watch the clever film...

Clubmasters with a difference: a modern Garfield twist from OGI Eyewear

These are nice: Garfield sunglasses from OGI Eyewear. Presumably pretty good as ophthalmic specs too.

Make it large - Mykita's Gary glasses from the AW10 collection

Cool glasses don't get much bigger than these. Genius hinge No.2 from Mykita is included, twice, in these Gary spectacles.

Twilight's Kristen Stewart in Lacoste sunglasses at Coachella

Fresh from her role as Joan Jett in The Runaways, the Twilight star wears the Lacoste limited edition 101 aviator sunglasses at the Coachella festival.