Low voltage capsule halogen lamps. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Halogen incandescent lamps. Low voltage capsule lamps. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Halogen lamps

capsule lamps no larger than conventional flashlight bulbs, but have a power of 5 to 100 watts. They are similar in design to mains voltage capsule lamps, but usually have a straight, rather than doubled, filament filament. Lamps of this type are equipped with G4 and GY6.35 pin bases (Fig. 5.7).

Due to the small luminous flux, the main purpose of lamps with a power of 5 and 10 W is decorative lighting. They are ideal for creating bright points of light, for example, to simulate the starry sky. Along with this, more powerful lamps can be used in general lighting fixtures.

In addition, their compact size and high brightness of the spiral made it possible to create small spotlights for indoor lighting (called "slots" in professional slang - sources of light spots, from the word spotlights.

Low voltage capsule lamps
Rice. 5.7. Appearance of capsular GLN: a - with an axial location of the filament; b - with a horizontal filament

Mini Spotlight for Capsule Lamp traditionally contains a mirror reflector with a pin cartridge placed in its center. Depending on the properties of the reflector, it may require lamps with an axial or horizontal (Fig. 5.7) spiral arrangement.

Attention! Incorrect lamp replacement can significantly affect the light distribution of such a spotlight.

The technology of applying an infrared reflective coating on the inside of the bulb, successfully applied in economical models of linear mains voltage lamps, is also applied to low-voltage capsule models. Such lamps have an increased (up to 25 lm / W) light output.

The quartz glass from which capsule lamps are made may impose additional handling and UV protection requirements. In this case, the corresponding marking is given in the catalog and on the packaging of the lamp.

Any system that includes a separate light source and reflector requires careful focusing of the lamp (placement on the reflector's focal point) after installation. Otherwise, the radiation angle and light distribution of the entire system are violated.

At the same time, such an operation is quite complicated for the average user, and an attempt to supply lamps with focusing socles would inevitably raise their cost. It was possible to solve this problem by developing mirror halogen lamps, which are "reflector lamp" kits already assembled at the factory.

Author: Koryakin-Chernyak S.L.

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