Light-Emitting Sealed Body With Intersecting Optical Axes
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Solution Overview
Problem
Laser excitation light sources experience light loss when laser light and output light are transmitted through light transmission windows and containers, limiting efficiency and output.
Innovation Solution
A light emitting sealed body with a housing made of light shielding material, featuring intersecting optical axes for laser and output light, and hermetically sealed window portions to minimize light transmission through other materials, reducing light loss and enhancing efficiency and output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light transmission windows and containers are used to transmit laser light and output light, then light can be transmitted through the housing, but light loss occurs during transmission
Solution Approach 1:
The housing is divided into light-shielding portions and light-transmitting window portions, separating the functions of structural support and light transmission. This segmentation allows the majority of the housing to be light-shielding while specific windows transmit necessary light, minimizing overall light loss.
Solution Approach 2:
Different portions of the housing have different optical properties: the main housing body is made of light-shielding material to block stray light, while specific window portions are made of light-transmitting materials to allow laser light and output light to pass through with minimal loss.
2Loss of energy
If a light shielding material is used for the housing, then light loss is reduced, but the housing blocks light transmission
Solution Approach 1:
The housing is segmented into light-shielding portions and light-transmitting window portions, allowing the structure to simultaneously block stray light while transmitting necessary light through designated windows, thus resolving the contradiction between light shielding and light transmission.
Solution Approach 2:
Light-transmitting window portions act as intermediaries between the light source inside the housing and the external environment, allowing selective transmission of laser light and output light while the light-shielding housing blocks unwanted stray light.
3Volume of moving object
If the first optical axis and second optical axis are arranged to intersect, then compact design is achieved, but alignment precision becomes more difficult
Solution Approach 1:
The optical axes are pre-aligned during the housing manufacturing process, with the first opening and second opening positioned at predetermined angles relative to each other. This preliminary alignment ensures that when the light-shielding plate and window portions are assembled, the optical axes automatically intersect at the intended angle without requiring complex post-assembly adjustments.
Solution Approach 2:
The housing is designed with specific geometric parameters (opening angles, positions, and orientations) that ensure the optical axes intersect at the desired angle. By carefully controlling these geometric parameters during manufacturing, the alignment precision is maintained despite the compact intersecting configuration.
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
The solution achieves high efficiency and high output by reducing light loss and improving the quality of output light through the use of light shielding materials and precise optical axis alignment, allowing for optimal transmission only through designated window portions.
Implementation Method 1
a first window portion (20) which hermetically seals the first opening (11) and allows the first light to be transmitted therethrough; a second window portion (30) which hermetically seals the second opening (12) and allows the second light to be transmitted therethrough
Implementation Method 2
the housing (10) is formed of a light shielding material which does not allow the first light and the second light to be transmitted therethrough
Implementation Method 3
the first electrode (40) and a second electrode (50) which face each other with an intersection C between the first optical axis (A1) and the second optical axis (A2) interposed therebetween, in which plasma can be generated between the first electrode and the second electrode by applying a voltage between the first electrode and the second electrode
Implementation Method 4
the first light is laser light for maintaining plasma generated in the discharge gas
Data Source
AI summary
A light emitting sealed body includes: a housing which stores a discharge gas and is provided with a first opening to which first light is incident along a first optical axis and a second opening from which second light is emitted along a second optical axis; a first window portion which hermetically seals the first opening; a second window portion which hermetically seals the second opening; and a first electrode and a second electrode. The housing is formed of a light shielding material which does not transmit the first light and the second light. An internal space is defined by the housing, the first window portion, and the second window portion and the internal space is filled with the discharge gas. The first opening and the second opening are disposed so that the first optical axis and the second optical axis intersect each other.