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US-2024340089-A1 · Oct 10, 2024 · US
Communication module and portable electronic device
US9036675B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9036675-B2 |
| Application number | US-201214001075-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2012 |
| Priority date | Feb 25, 2011 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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- Title
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Abstract
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A communication module according to the present invention includes a substrate, a laser element and a light receiving element provided on a front surface of the substrate and separating from each other, a transparent resin package collectively sealing the laser element and the light receiving element, and a diffusion unit provided to be opposed to a light emitting surface of the laser element at a prescribed distance for diffusing a laser beam emitted by the laser element, while the distance T between the laser element and the light receiving element satisfies the following formula (1): T≧t 1 ·tan θ+(t 1 +t 2 )·tan θ′ . . . (1) (in the formula (1), t 1 represents the distance between the light emitting surface of the laser element and the diffusion unit, θ represents the maximum angle of emission of the laser element, t 2 represents the difference between the height from the front surface of the substrate up to the light emitting surface and the height up to alight receiving surface of the light receiving element, and θ′ represents the maximum diffusion angle of the diffusion unit.)
First claim
Opening claim text (preview).
The invention claimed is: 1. A communication module comprising: a substrate; a laser element provided on a front surface of the substrate; a light receiving element provided on the front surface of the substrate and separated from the laser element; a transparent resin package collectively sealing the laser element and the light receiving element, the resin package including a package body sealing and adhering to the laser element and the light receiving element, and having…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
- H04B10/503Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9036675B2 cover?
- A communication module according to the present invention includes a substrate, a laser element and a light receiving element provided on a front surface of the substrate and separating from each other, a transparent resin package collectively sealing the laser element and the light receiving element, and a diffusion unit provided to be opposed to a light emitting surface of the laser element a…
- Who is the assignee on this patent?
- Obika Akira, Kitagawa Masayuki, Rohm Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B10/503. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).