JPH0358636A - Optical communication transmitter - Google Patents

Abstract

PURPOSE:To omit a reflecting member provided especially by using part of a member constituting the transmitter in common to a means varying an optical path of a light beam. CONSTITUTION:A projection 4 being a light beam reflecting means cut and raised from a case 3 at a proper angle is provided onto the case 3 being part of a member constituting the transmitter main body 5 together with a photodetector sensor 2. A light source 1 radiates a light beam L for optical communication with a prescribed operation and a radiating beam L strikes on the projection 4 provided onto the case 3 and is reflected at a prescribed angle and received by the photodetector sensor 2. Upon the detection of the light beam L, the sensor 2 applies a prescribed operation. Thus, it is not required to prepare the reflecting member to reflect the light beam radiating from the light source separately and number of parts is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of "Industry" 2+1j] The present invention relates to optical communication transmission equipment for transmitting information using optical communication.

[Prior Art] Conventionally, this type of information transmission device using optical communication has a light source section that converts an external signal into a light beam and transmits it to another location by emitting it, and a light beam that is emitted from a light source section. It consists of a light receiving sensor that receives a signal by receiving and detecting the forward beam and performs a predetermined operation. FIG. 6 shows such an optical communication information transmission device.

In the 6th UA, the light source 51 converts an external signal into a light beam 4 and shoots it to transmit information, and the light receiving sensor 52 receives the light beam I emitted from the light source 51 and receives the signal. and performs a predetermined operation. Since the light beam L has straightness, in order to perform optical communication, the light emitting surface 5 i F. of the light source 5 I is required. 1 and the light receiving sensor 52 5
2 A must be facing each other.

If there is an obstacle 63 in the optical path of the light beam L, the optical path of the light beam L, which is straight, is blocked by the obstacle 63, and the light beam L travels straight between the light source 61 and the sensor 62. Optical communication becomes impossible. l) It is necessary to install the light source and the sensor in a position where there are no obstacles in the optical path. In the optical communication transmission method as shown in FIGS. 62 is subject to considerable restrictions.

In order to solve this problem, as shown in FIG. 8, conventionally, a reflective member 73 such as a chain is provided at a certain angle on the optical path of the light beam 14 from the light source 7l to bend the optical path. Restrictions when arranging the light source 71 and the light receiving sensor 72 are reduced.

In addition, as shown in FIG. 9, a light source 81 and a light receiving sensor 82
Even if an obstacle 83 is placed at a position that blocks the optical path between
In FIG. 9, the optical path of the light beam 14 can be freely bent by providing the optical fibers 84, 85, 86, and 87), thereby preventing the optical communication from being obstructed by the obstacle 83.

[Problems to be Solved by the Invention] However, in the above conventional example, reflective members must be specially provided as means for bending the optical path of the light beam emitted from the light source. However, the device has a multi-axis structure, which makes assembly difficult. In addition, as the number of parts increases, assembly costs increase,
Another disadvantage was that the weight of the metal body of the device increased.

Therefore, in view of the above-mentioned problems, an object of the present invention is to use a part of the members constituting the device as means for changing the optical path of the light beam emitted from the light source, thereby replacing the conventionally specially provided reflection q. An object of the present invention is to provide an optical communication transmission device that makes it possible to omit additional members.

[Means for Solving the Problems] - In order to achieve the object, the present invention changes the traveling direction of the light emitted from the source of light for S communication in the middle of the optical path to create a light receiving sensor. As a reflector for transmitting information to the ``light path changer for moxibustion, etc.'', it also has other functions that are present in the main body of the .8A system. By doing so, the bending of the optical path for the optical transmitter can be reduced by 1" without increasing the number of parts.

Embodiment FIG. 1 is a schematic diagram of a first embodiment of an optical communication transmission device according to the present invention. In the figure, a light beam l1 for optical communication is emitted from a light source 1. The beam 1 is emitted from the outside in response to an issuing command from Shinji etc. The light beam 1 emitted from the light source 1 is received by the light receiving sensor 2 and a predetermined operation is performed. Is it part of the members that make up the wooden body 5 along with 2? On the i body 3, there is provided a protrusion 4 which is cut and raised from the housing 3 at an appropriate angle and serves as a κ beam anti-Q1 arm. After this protrusion 4 is cut and raised from the housing 3, it is made to have a certain degree of reflectivity, and the light source 1 is
The light beam I4 is directed toward the light receiving sensor 2.

The light 8TAI may be provided within the main body 5 of the apparatus, or may be provided outside thereof as shown in FIG.

To explain the operation of the first embodiment with the above configuration, first, when it becomes necessary to transmit a signal to the sensor 2 for a certain purpose, a light emission command is issued by an appropriate known stage (for example, a pulse signal). transmitted to light source 1. Upon receiving this command, the light source 1 emits a light beam L by a predetermined operation, and this emitted beam 1 hits a protrusion 4 provided on the housing 3'2, is deflected at a predetermined angle, and is then received. Leads to sensor 2. The sensor 2 performs a predetermined operation by detecting the light beam L.

)'C. For ij71, any known light source may be used, but if a laser unit that emits a laser beam with good likelihood is used, the spread of the light beam due to reflection can be prevented, so do not increase the light intensity too much. The desired signal can be delivered without any interference.

In this way, according to the above configuration, there is no need to separately prepare an anti-q=t member for reflecting the light beam from the light source, and an increase in the number of parts can be suppressed.

FIG. 2 shows a second embodiment of the invention. In the figure, reference numeral 11 denotes a light source that emits a light beam in accordance with a predetermined operation after receiving a light emission command from an external source, and 12 {±
3l [: is a light receiving sensor that performs a predetermined operation by receiving the light beam L transmitted from the source with q = t, 13 is the main body of the device 5, and l4 is the main body of the device. 15 (for example, a drive motor, etc.). Here, the outer surface of the member 14 is exposed to the light beam T. (Light receiving sensor 1
Against 2! A notch 16 with a sharp angle and a necessary curved area is provided at a position where 1B is possible, and this notch 16 is provided with a certain degree of reflectivity.

Regarding the installation position, type, etc. of the light source l1, the same can be said as described in the first embodiment.

The operation of the second embodiment is substantially the same as that of the first embodiment. In the second embodiment as well, not only is it not necessary to prepare a separate anti-cutting member, but the arrangement of the reflecting member and the sensor is not restricted by the arrangement of the members constituting the main body of the apparatus.

FIG. 3 shows a third embodiment. The third embodiment is a combination of the first and second embodiments. In the same figure, 21 is a light source, 22 is a light receiving sensor, 23 is a casing that constitutes the fork mount main body, and 24 is also a device. A member different from the housing 23 (for example, a drive motor), 25 is a projection made in the same manner as the projection 4 in the first embodiment and has the same function, and 26 is a notch 16 in the second embodiment. The notch part 27 is made in the same manner and has the same function as the main body of the device.

Regarding the operation and effect of the third embodiment, please refer to "2, Parts 1 and 2"
The description in the embodiment and the light beam L. Since this is obvious from the optical path, the explanation will be omitted.

With the configuration as in the third embodiment, the more times the optical path of the light beam L from the light source 21 is bent, the more the number of parts can be reduced compared to the conventional example having a separate reflector, and the number of parts can be reduced significantly. This makes it possible to reduce the number of parts and simplify the device configuration.

FIG. 4 shows an example in which the first embodiment of the present invention is applied to a certain paper conveyance device.

In the figure, 3j is a light source that emits a light beam L for optical communication, and 32 is a sensor that recognizes the presence or absence of paper S by receiving and detecting the light beam L. In addition, 33 is the device main body 3
7, and on the body 33 there is a samurai door that can be used to reflect the light beam I from the light source 31 toward the sensor 32 with a suitable square hole. A protrusion 34 is provided as a raised reflecting means, and the protrusion 34 and the center →
Paper transport paths 35 and 3 cross the optical path connecting J'-3 2.
6 is provided.

It is desirable that the light source 3l is provided within the main body 37 of the apparatus, and the light beam emitted from the light source 3l is preferably one that does not pass through the paper S, rather than a laser beam.

In "Ichi no Sensei, Hikaru Iku! From 31, q=t always
The emitted light beam I, hits the protrusion 34 and is reflected at a predetermined angle, crosses the paper conveyance path 35, :36 and heads toward the light receiving sensor 32.

Here, for example, as shown in FIG. 4, the paper S is MQ,'
．． 7 = j, +15 3 (-,, if it has not been sent to 36 yet) 42 beam l.
continues to be detected. As a result, the light receiving sensor 32
It will be recognized that there are no conveyance paths 35 and 3 6 Jl.

Next, as shown in FIG. 5, when the paper S is sent along the transport paths 35 and 3G in the direction of the arrow in the figure and crosses the optical path -1- connecting the projection 34 and the light receiving sensor 32, , the optical beam I2 is blocked by the paper S at the same optical path. Therefore, the light receiving sensor 32 does not detect the light beam, and the paper S
Recognizes that it is being sent on 36.

By configuring as described above, the light source 31 and the paper detection sensor 32 can be placed at a separate location, and the number of parts can be reduced and the configuration can be made compact. [Effects of the Invention] As explained above, according to the present invention, as a means for changing the optical path of an optical signal in an optical communication transmission device, the casing 11 constituting the main body of the device and a separate member of the device are provided with a 1,000-step optical path changing path. Since it is used for both, there is no need to prepare separate parts such as Q and 1 as in the past, and the number of parts and assemblies can be reduced, resulting in a reduction in price. sing

Also, depending on the arrangement of other members, the removal of reflective members etc. {=1
There are fewer restrictions on positioning, and even when optical communication is used for paper sensors, for example, it is possible to keep the light source and sensor separated, making the structure and parts arrangement flexible and easy. .

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the configuration of the second embodiment of the present invention, FIGS. 2 and 3 are schematic diagrams of the second and third embodiments, respectively, and FIGS. 4 and 5 are diagrams of the fourth embodiment. Diagrams for explanation, Figures 6 to 9
The figure is an explanatory diagram of a conventional optical communication transmission device. 1, 11, 21, 31... light source, 2, 12, 22
, 32... Light receiving sensor 4, I6, 25, 2G, 3
4... Anti-II1 2 parts, 5, 1 5, 2 7, 3 7 ・ ・Device body

Claims (1)

[Claims] 1. An optical communication transmission device using a light beam, which includes a light source that emits a light beam, a sensor that receives and detects the light beam emitted from the light source, and a component that includes the sensor. An optical device characterized by having a main body of the device which is included as a part and performs a predetermined function as a whole, and a dual-purpose member that constitutes the main body of the device and has a certain function and also has the function of changing the optical path of the light beam. Communication transmission device. 2. The optical communication transmission device according to claim 1, wherein the dual-purpose member changes the optical path of the light beam by reflecting it. 3. The optical communication transmission device according to claim 1, wherein the light source is disposed outside the device main body. 4. The optical communication transmission device according to claim 1, wherein a plurality of said dual-purpose members are provided in the device main body.