Optical Sighting Communication Through Modulated Light Paths

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Solution Overview

Problem

Existing optical sighting devices lack the ability to facilitate communication between users remotely positioned without relying on radio-frequency transmission systems, which are often restricted or dangerous in environments with explosive atmospheres.

Innovation Solution

An optical sighting device integrated with an optical communication system, comprising an optical receiver and transmitter stage, allowing for direct optical communication through predefined modulation schemes, ensuring directivity and sensitivity to optical radiation, and featuring a reflector element to manage optical paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If radio-frequency transmission systems are used for communication, then communication between users is enabled, but the system becomes unreliable and dangerous in environments with explosive atmospheres

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidexplosion risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces radio-frequency electromagnetic transmission with optical radiation transmission (visible or infrared light) for communication between users. This substitution eliminates the harmful radio-frequency emissions that could trigger explosions in hazardous environments, while maintaining reliable communication through the optical channel that passes through the sighting device.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If portable transceivers with radio spectrum frequencies are used, then communication is established, but the device complexity and authorization requirements increase

Engineering Contradiction:
Improvecommunication easeVSAvoidtransceiver system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the communication function with the existing optical sighting device by integrating an optical receiver stage and optical transmitter stage into the same housing. This combination eliminates the need for separate portable transceivers, reducing overall system complexity and removing authorization requirements while maintaining ease of operation for communication between users.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If free-use transceivers are used for communication, then no authorization is needed, but the communication range is limited and easily intercepted

Engineering Contradiction:
Improvecommunication accessibilityVSAvoidcommunication security
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent applies local quality by directing optical radiation through a specific predefined path between the front lens and rear lens of the sighting device. This localized optical channel provides secure, line-of-sight communication that is difficult to intercept, while maintaining accessibility for users who both possess the sighting devices. The communication is confined to the specific geometric path defined by the optical axes of the two devices.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables secure, direct optical communication between users at a distance, avoiding the need for radio-frequency systems and allowing use in hazardous environments, with enhanced sensitivity and directivity to optical radiation.

Implementation Method 1

an optical radiation (108) transmitted with a predefined modulation scheme from a first position to a second position along a predefined optical path between a front lens (2) and a rear lens or output lens (3)

Methodology Applied
Scientific EffectOptical radiation transmission: Light

Implementation Method 2

said optical receiver stage (199) is configured to produce, on at least a first output (10u, 10u'), a replication electrical signal (s'(t)) of a modulating signal of an optical radiation (108r)

Methodology Applied
Scientific EffectPhotodetection: Photoelectric Effect

Data Source

PatentEP3729164B1Optical sighting device with optical communication system
Publication Date: 2026.02.18 S-LUX GMBH
  • EP3729164B1 patent drawingFigure 1~2
  • EP3729164B1 patent drawingFigure 3~4
  • EP3729164B1 patent drawingFigure 5~8

AI summary

Optical sighting device (1 ) with an optical communication system (2), said optical device comprising a body provided with at least one front lens (2) adapted in use to at least receive an optical radiation (108), and at least one rear lens or output lens (3), placed in optical communication with the aforesaid front lens (2) and adapted in use to allow a user to visualize a space part or portion sighted through said optical device (1 ) along at least one main sighting direction defined by a first sighting axis (Y), wherein said optical radiation defines and/or performs a predefined optical path between said front lens (2) and said rear lens or output lens (3); said optical device (1 ) is characterized in that it comprises an optical communication system (10) integrated on or inside said body, comprising at least one optical receiver stage (199) and/or one optical transmitter stage (99), wherein: - said optical receiver stage (199) is configured to produce, on at least a first output (10u, 10u') thereof, a replication electrical signal (s'(t)) of a modulating signal of an optical radiation (108r) modulated according to a predefined modulation scheme; and - said optical receiver stage (99) is configured to produce, on at least a first output (10u, 10u") thereof, an optical radiation (108r) transmitted with a predefined modulation scheme based on an electrical data signal (s(t)), said optical communication system (10) comprising at least a first input (10i) configured to receive the data electrical signal (s(t)), where said data electrical signal (s(t)) acting as a modulating signal for said optical radiation.