Influence of hood on light bulb

In the lighting industry, a hood is usually used to protect light bulbs from unnecessary light. The hood has the following effects on the bulb:

1. Protect the light bulb: the hood can prevent external light from directly shining on the light bulb, thus reducing the overheating and overload of the light bulb. This helps to prolong the service life of the bulb and reduce the risk of damage.

2. Reduce brightness: Because the hood blocks part of the light, the light will be reflected and scattered to a certain extent when passing through the hood. Therefore, the brightness of the light emitted by the bulb may decrease. This situation is particularly obvious in high-power lamps and large-caliber bulbs.

3. Control the color temperature: The hood can change the color temperature passing through the bulb, thus affecting the color of the light shining on the object. For example, using an amber visor can warm the light, while using a blue or green visor can cool the light.

4. Shielding glare: The sun visor can effectively shield the glare generated by external light, thus improving the contrast and clarity of the subject. This is especially important for professional photographers and videographers.

In a word, the influence of the hood on the bulb is mainly reflected in protecting the bulb, reducing the brightness, controlling the color temperature and shielding the glare.