Matsushita Electric Industrial Co., Ltd.

Masuo Ohta

Yukinobu Sako

Kinya Kawanobe

Light section 1 comprises a body case 8 accommodating batteries 5 and a lens cap 7 containing a light bulb 4 and detachably mounted at the bottom edge opening of the body case 8. Outer periphery of light section 1 is covered by an outer cylindrical section 2 provided with a switching operation projection 10a and a stopper spring 12 such as to allow free relative sliding movements. The light section 1 and the outer cylindrical section 2 are stored in the hollow space of a decorative section 3 which is fitted with the outer cylindrical section 2. When the decorative section 3 is lifted from the state of being mounted on an installation surface 11, the outer cylindrical section 2 rises. Concurrently, an illumination circuit for the light bulb 4 is closed by a lead spring 9 being inwardly pushed by the switching operation projection 10a. The stopper spring 12 comes to engage with a descent stopper position 8c of body case 8, by which the light section 1 is kept in a state with the lens cap 7 projected from the bottom edge of the decorative section 3.

Emergency flashlight

In connection with a display apparatus that is held and swung by an operator to display images of pictures, letters, etc. in space using an afterimage effect, a party situated opposite to the operator is enabled to recognize the images displayed always at the central position of the swing range and with the same dimensions irrespective of the swinging speed and to see the same images displayed even of an asymmetrical pattern irrespective of the directions of the swing of the apparatus. The display apparatus has a transparent protective case covering both side faces, right and left, of an array of LEDs, a measuring unit to measure the cycle time of right and left reciprocating motion, a computing unit to process by computation the measured cycle time, a memory unit to memorize the processed results and a timer circuit unit to control turning the LEDs on and off. This set-up enables a party situated opposite to the operator of the display apparatus to see correct images of letters and pictures displayed always at the center of the swinging width range regardless of the swinging speed.

Growing community of inventors

Moriguchi, Japan

Masuo Ohta