Glass is the foundation of the mirror, the back basket profile is the core frame and the optical path guiding mechanism, and the LED light strip and the electrical box are the power sources. They are combined into a complete structure that can emit light through physical bonding and wire connection. The uniformity of the light emission is entirely dependent on the structural design of the back basket profile. This article introduces the different structures of mirrors of different shapes to everyone, thereby generating different light emission effects.
This is the most common shape with the simplest structure and the lowest production cost.
- The straight edge part:The light propagation path is simple. The light is emitted from the lamp bead, vertically or at a certain Angle towards the mirror surface, and then reflected back. In the straight line section, the light spot is uniform, bright and has high brightness.
- Corner section:This is the core pain point of square mirrors. The light strips must bend at the corners and are usually connected by "hinges" or directly folded. Either way will lead to.
- Dark Zone:The arrangement density of the LED beads at the corner changes, and the spacing increases, resulting in a decrease in the luminous flux per unit area of this zone.
- Uneven brightness:The emission Angle of the light beads at the corner undergoes a sudden change. Some of the light cannot be effectively reflected directly in front but is instead blocked by adjacent profiles or the light strip itself, resulting in broken or discontinuous light spots.

Analysis of advantages and disadvantages
Advantages
Easy to produce and process
The profile cutting, bending and assembly processes are mature and simple, with low costs.
Structural stability
The square structure makes it easy to achieve the firmness and stability of the mirror body.
Easy installation
It is easy to level and install on the wall.
High market acceptance
It conforms to mainstream aesthetics and has the widest range of applications.
Disadvantage
Optical effect flaws
Dark areas or uneven brightness in the four corners are inevitable structural defects that affect the texture of high-end products.
The design is monotonous
Compared with circular or irregular-shaped mirrors, the design sense is slightly conventional
The circle is one of the shapes with the most superior optical effects.
- Uniform luminescence:The distance and Angle from the center of the circle to each point on the circumference are symmetrical and continuous. The light strips can be perfectly joined end to end to form a uniform halo.
- No blind spots:There are no sharp corners. The reflection path of light from any point to the mirror surface is very smooth, without causing obvious obstructions or dark areas. The halo is soft, continuous and full, with an excellent visual effect.

Analysis of advantages and disadvantages
Advantages
The optical effect is perfect
The light emission is uniform and continuous, with no dark areas or breaks, and it exudes a strong sense of high-end quality.
Strong design sense
The shape is soft and modern, and is deeply loved by young consumers and modern, minimalist style designs.
Disadvantage
The production cost is relatively high
The cutting and edge grinding costs of round glass are higher than those of square glass. The processing and bending techniques of circular profiles are more complex, and the requirements for controlling the yield rate are higher.
Installation of electrical appliance boxes
Electrical appliance boxes are square. How to properly install them on the round back without affecting the overall aesthetics and lighting effect requires better structural design
It can be regarded as a combination of a circle and a rectangle.
The effect lies between square and round. On the long side with a larger radius of curvature, the luminous effect is close to a circle, uniform and smooth.
The luminescence effect is also very good at both ends of the shorter side with a smaller radius of curvature (i.e., the tops of the left and right semi-circles).
Its optical performance is superior to that of a square, but theoretically it is slightly inferior to a perfect circle because not all points have the same curvature.

Analysis of advantages and disadvantages
Advantages
Combining aesthetics and optics
It retains the soft and uniform light effect of a circle while also featuring the slender and elegant shape of a rectangle, with a strong artistic sense.
Good spatial adaptability
Vertical oval-shaped mirrors are especially suitable for narrow and high Spaces such as bathrooms and dressing rooms, providing a visually stretching effect.
Disadvantage
The production process is complex
The profiles need to undergo bending processing with two different radii, and the mold and process costs are the highest.
These are products that emphasize design sense and artistry.
The effect is highly dependent on the specific shape: for shapes with smooth curvature changes (such as large waves), the light emission is relatively uniform.
For shapes with sharp inner corners or complex concave and convex features, the light emission will be very uneven. Problems such as dark areas, bright spots and light interruption will be very prominent, and the optical effect is usually poor.

Analysis of advantages and disadvantages
Advantages
Unique design value
It can become the artistic focus in the space and meet the demands of the personalized and high-end customization market.
Brand differentiation
Helping factories stand out in the competition and showcase their design and technological strength.
Disadvantage
Optical effects are difficult to control
Usually, it is not for the pursuit of perfect light effects, but at the expense of light effects for the sake of shaping.
The production cost is extremely high
The profiles need to be custom-made by opening molds, and the glass cutting is complex. Almost all the work is done manually, resulting in low output and high cost
Summary and Suggestions
| Shape | optical effect | production cost | process difficulty | design sense | core issues |
| Square/rectangular | Good (with dark corners) | Low | Low | Classic | 90-degree corner dark area |
| Round | Excellent(uniform and continuous) | Medium | Medium | Strong | Installation and processing accuracy of electrical boxes |
| Oval | Excellent(nearly uniform) | High | High | Extremely strong | Complex to process and costly |
| City | Poor | Very high | Very high | Extremely strong | Sacrifice light effects for the styling |








