| 摘要 |
1 Apparatus for simulating flames comprising a light source, a screen, and a flame effect member located optically between the light source and the screen, such that light traveling from the source to the screen means passes through the flame effect means and means for generating a current of air, wherein the flame effect means comprising a sheet of material having therein a plurality of elongate slits which are caused to open and close by the current of air in a manner whereby parts of the material which are disposed either side of each slit are caused intermittently to come into contact with one another. 2. The apparatus according to claim 1, wherein the upper and lower ends of the flame effect means do not lie in a common vertical plane. 3. The apparatus according to claim 2, wherein the upper end of the flame effect means is supported more rearwardly within the housing that the lower end. 4. The apparatus according to any one of the preceding claims, wherein the slits are substantially straight. 5. The apparatus according to any one of the preceding claims, wherein each slit lies within a substantially vertical plane, the planes being substantially parallel to one another. 6. The apparatus according to claim 1, wherein the length of the slits is substantially equal to the height of the sheet. 7. The apparatus according to any one of the preceding claims, wherein the material in which the slits are provided is translucent, whereby light passing through the slits is incident on the screen means at a first intensity, whereas light passing through the material is incident on the screen means at a second, lower, intensity. 8. The apparatus according to any one of the preceding claims, wherein the source of light produces generally white light. 9. The apparatus according to any one of the preceding claims, wherein the sheet of material is colored red or orange. 10. The apparatus according to any one of the preceding claims, wherein the apparatus is provided with a reflector disposed optically between the source of light and the flame effect means, the reflector comprising a plurality of parts movable relative to each other, and a means producing such motion. 11. The apparatus according to claim 10, wherein the reflector comprises a plurality of substantially vertically extending strips. |
