| 摘要 |
The invention relates to a portable lamp such as, for example, a pocket lamp, electric torch or hand spotlight, comprising a lamp head which has a concave mirror reflector, and a battery holder for accommodating batteries, and furthermore a light source, preferably an incandescent lamp, for generating light. The invention specifies a portable lamp which the consumer can optionally set up and use as a) a prefocused lamp with a parallel light bundle b) a prefocused lamp having a conical light bundle c) a lamp with an adjustable light bundle d) a lamp with a plurality of light bundles, without it being necessary for this purpose as heretofor to produce fundamentally different versions of portable lamps, but covering all areas of application with a single portable lamp. |
