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Robot, printer, and optical signal transmission apparatus

A technology for transmission devices and robots, applied in optical transmission systems, measuring devices, instruments, etc., can solve problems such as difficulty in miniaturization of devices

Inactive Publication Date: 2019-10-18
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the optical communication module of Patent Document 1 having such a configuration, since a transimpedance amplifier is arranged behind the laser diode and the photodiode, it is difficult to reduce the size of the device.

Method used

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  • Robot, printer, and optical signal transmission apparatus
  • Robot, printer, and optical signal transmission apparatus
  • Robot, printer, and optical signal transmission apparatus

Examples

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no. 1 approach ＞

[0029] First, a robot and an optical signal transmission device according to a first embodiment of the present invention will be described.

[0030] figure 1 It is a perspective view showing the robot of the first embodiment of the present invention. figure 2 It is a figure which shows the arrangement|positioning of the optical signal transmission apparatus with which a robot is equipped. image 3 It is a side view showing the optical signal transmission device. Figure 4 It is a plan view of the first substrate included in the optical signal transmission device. Figure 5 It is a plan view of the package included in the optical signal transmission device. Figure 6 yes Figure 5 The A-A line sectional view in. Figure 7 as well as Figure 8 Each is a cross-sectional view of a photoelectric conversion unit included in the optical signal transmission device. Figure 9 It is a plan view of the first substrate included in the optical signal transmission device. Figure 1...

no. 2 approach ＞

[0090] Figure 15 It is a cross-sectional view of an optical signal transmission device according to a second embodiment of the present invention.

[0091] The optical signal transmission device of this embodiment is the same as the optical signal transmission device of the aforementioned first embodiment except that the optical wiring 3 is used instead of the optical waveguide 25 . In addition, in the following description, regarding the optical signal transmission device of the second embodiment, differences from the above-mentioned first embodiment will be mainly described, and the description of the same matters will be omitted. In addition, in Figure 15 In , the same reference numerals are assigned to the same components as those in the above-mentioned embodiment.

[0092] Such as Figure 15 As shown, in the optical signal transmission device 2 of this embodiment, one end of the optical wiring 3 is connected to the cover 243 of the package 241 . For example, the conn...

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Abstract

The present invention provides a robot capable of achieving miniaturization, a printer and an optical signal transmission device. The robot includes an optical signal transmission apparatus that transmits optical signals. The optical signal transmission apparatus includes a light emitting device that emits light, a light receiving device that receives light and outputs a signal, and an amplifier circuit that amplifies the signal output from the light receiving device, wherein the amplifier circuit is placed between the light emitting device and the light receiving device. Further, a distance between the light receiving device and the amplifier circuit is smaller than a distance between the light emitting device and the amplifier circuit.

Description

technical field [0001] The invention relates to a robot, a printer and an optical signal transmission device. Background technique [0002] For example, an optical communication module described in Patent Document 1 is known as an optical signal transmission device capable of switching between an electrical signal and an optical signal. The optical communication module of Patent Document 1 includes a laser diode, a photodiode, and a transimpedance amplifier that converts a current signal from the photodiode into a voltage signal. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2013-21543 [0004] However, in the optical communication module of Patent Document 1 having such a configuration, since the transimpedance amplifier is arranged behind the laser diode and the photodiode, it is difficult to reduce the size of the device. Contents of the invention [0005] The robot of the present invention is characterized in that it is equipped with an optical signal tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4274B25J19/0029B25J19/021B25J13/08G01S17/08H04B10/80
Inventor 中山人司
Owner SEIKO EPSON CORP