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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing one embodiment of
the present invention. FIG. 2 is a cross-sectional view showing a specific structure of one
embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... lens, 2 ... light detector, 3
... amplifier, 4 ... battery, 5 ... earphone, 6 ... detector, 1 ... case, 8 ... Modulated light.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a receiver of light
modulated by an audio signal. Heretofore, this type of light receiver has been large, expensive
and not general-purpose, and has been developed only for industrial use and research. In recent
years, optical communication technology has been developed, but in the future, there is no doubt
that light will be generally used more than the present Tsubami. Therefore, it is obvious that a
compact, simple and inexpensive light receiver 1 / is required. It is an object of the present
invention to provide a light receiver which eliminates the large size and quadrivalent defects of
the prior art, and which makes it possible to hear sounds when the ear is brought close to light
which is small and inexpensive. According to the present invention, a condenser lens, a light
detector, a detector for converting the light detector output into sound No. 1, an amplifier, a light
reception for general people in which an ear hose and a battery are housed in an integral case
The vessel is obtained. Next, the present invention will be specifically described with reference to
FIG. 1 and FIG. FIG. 1 is a diagram schematically showing the structure of the present invention.
A light detector 2 is provided at the focal point of the lens 1, and the output end of the light
detector 2 is increased through the light detector 6! 30 output 4 and the output of amplifier 3 is
earphone 5 VC fl! Continue. tfe, a battery 4 is connected as a power source of the amplifier 3. It
is FIG. 2 that these components were accommodated in the integrated case 7. When the
modulated light 8 converted by the voice gI is incident on the lens 1, it is collected by the lens 1
and is incident on the area rbvs2. Then, the output 2- of the light detector 2 is demodulated into
a voice signal by detection I6, amplified by the amplifier 3, converted into voice by the earphone
5, and heard by the human ear. Therefore, if the light receiver of the present invention is put in
the human ear, the sound can be heard. The connection between the earphone 5 and the
amplifier 3 and between the light detector 2 and the detector 6 may be extended. As described
above, according to the present invention, it is possible to obtain a light receiver with a general
direction 1 that converts modulated light into sound and detects it by the simple configuration of
providing a light detector in the ear horn. 4 Fig. RfIo Brief description Fig. 1 is a pro, showing an
embodiment of the present invention, and Fig. 2 is a sectional view showing a concrete structure
of an embodiment of the present invention. Lens, 2 ииииии Photo detector, 3 иии иии 14 amplifier, 4 и и и
Battery 5 и Ear horn 6 и и и и и и и и и и и и и и и и? Gace, 8 ? ? ? ? ? R # 14 light. f mouth ? ? иии Lee
1 Uchihara ? 3-73 ? ? ? feather 2 ? 6 ? ?-h h 2 o / ?? 2 [2] ?':: =;';, 5.444, l '] TfAIt ('-',
2, ...?
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description, jps5572378
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