A lithophane is a thin panel whose thickness varies across its surface, so that when light shines through it from behind, the thick areas look dark and the thin areas glow bright, and a picture appears. Unlit, it looks like a pale, bumpy plaque. Lit, it becomes a detailed photo made of nothing but light and shadow.
Where lithophanes come from
Lithophanes are older than photography as most people know it. They were developed in France in the 1820s, and the technique was patented in 1827. The first pieces were made in unglazed porcelain, carved in wax and then cast so the finished plaque had a precise range of thicknesses.
German porcelain makers took the idea and ran with it. The Royal Porcelain Manufactory in Berlin made so many that lithophanes were often called "Berlin transparencies," and Meissen produced them in large numbers too. They were set into window panes, lamp shades, candle screens and even the bottoms of tea cups and beer steins, so the image appeared as you drank.
Porcelain lithophanes took great skill to make. Today a 3D printer can build the same effect, layer by layer, straight from a digital photo, which is why the craft has had a second life as a personal photo gift.
How thickness turns into a picture
The whole trick is that light has to travel through the material. The more material it passes through, the less of it makes it out the other side. A lithophane is simply a map of your photo's light and dark areas, turned into a map of thick and thin.
- Bright areas (a sky, a white shirt, the shine in an eye) become the thinnest parts of the panel.
- Dark areas (hair, shadows, a dark coat) become the thickest parts.
- Everything in between becomes a gradual slope, which is what gives skin and fur their soft, natural shading.
On our panels, the thickness runs from about 0.6 mm in the brightest spots to about 3 mm in the darkest. That small range is enough to hold a surprising amount of detail, from individual strands of hair to the texture of a knitted sweater.
How we 3D print a photo lithophane
Every lithophane we make is printed to order from the customer's own photo. The process looks like this:
- We check the photo. We look at sharpness, lighting and how much of the frame the faces fill. If a photo won't print well, we message you before anything is printed.
- We turn the photo into a 3D panel. Software converts each pixel's brightness into a thickness, producing a model that is a relief of your photo.
- We print it in white PLA. White filament spreads light evenly and keeps the tones neutral, so the image reads like a black-and-white photograph when lit.
- We print it standing up at fine layer heights. Panels are printed upright at about 0.12 mm per layer. Standing the panel up lets the printer shape the thickness changes with its side-to-side movement, while thin layers keep the vertical detail smooth. A single panel takes several hours.
- We assemble and check it. The panel goes onto its light base, and we check the finished piece before it ships.
Because lithophanes are made to order, production takes 5–7 business days, plus shipping transit time.
What makes a photo work as a lithophane
A lithophane can only show what's in the photo, so the photo matters more than anything else. The best results come from sharp, well-lit pictures where the faces fill most of the frame. Screenshots, heavily filtered images and tiny, compressed files tend to print soft or muddy.
As a rule of thumb, send a photo that is at least 1000 pixels on its short side, in JPG, PNG or HEIC format. Straight from your phone's camera roll is usually best. For more detail, read our six tips for choosing the best photo for a lithophane.
The lithophanes we make
We offer two photo lithophanes through our custom 3D printing page:
- Photo Night Light ($15.99 + $4.99 US shipping): one photo, portrait or landscape, on a panel of about 80 × 100 mm (3.1 × 3.9 in). The whole light stands about 4 × 4.6 in and runs on a USB-powered LED base with an inline switch.
- Hex Photo Lantern ($59, free US shipping): six 80 × 115 mm panels holding 4–6 photos, lit by a warm-white USB LED column. It measures about 6.5 in across and 5.7 in tall, with a black or white base and cap.
The night light suits a single favorite picture, while the lantern tells a small story in several photos, such as a wedding day or a family year. Lithophanes are also exempt from our $25 minimum order. For printed pieces beyond photos, our custom 3D printing price guide explains how size and material shape a quote.
Caring for a 3D printed lithophane
A PLA lithophane needs very little care, but a few habits keep it looking its best. Dust it with a soft, dry brush or a microfiber cloth, since dust sitting in the low spots can dull the image.
Keep it out of hot cars and away from sunny windowsills. PLA starts to soften at around 55–65 °C (roughly 130–150 °F), and a thin panel can warp if it gets that warm. Normal room temperature and the low-heat LED bases are no problem.
Lithophane FAQ
What does a lithophane look like when the light is off?
Unlit, it looks like a white, textured panel with a faint raised outline of the image. You can often make out shapes, but the photo only appears clearly when light shines through from behind.
Are 3D printed lithophanes in color?
Ours are printed in white PLA, so the image appears in shades of light and shadow, much like a black-and-white photo. The tone of the light depends on the LED behind the panel.
What if my lithophane arrives damaged?
Personalized items can't be returned, but if a panel arrives damaged, we reprint it. Just contact us with your order details.
If you have a favorite photo that deserves more than a spot in your camera roll, a lithophane is a simple way to put it in the light. Send us your photo and we'll check it and reply with a quote within 1–2 business days.