Projecting Apparatus Light Source Axis Parallel to Valve Plane
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Solution Overview
Problem
Conventional projecting apparatuses require an oblique arrangement of the light source, leading to increased space occupation and reduced heat dissipation due to limited airflow, which hinders the miniaturization of the housing and affects optical component placement.
Innovation Solution
A projecting apparatus is designed with a light source, prism, reflecting mirror, and reflective light valve arranged within a three-dimensional space defined by perpendicular imaginary planes, allowing the light source and uniformizing components to be positioned horizontally and non-obliquely, utilizing a prism to refract the light beam and intersecting optical paths to achieve efficient space utilization and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the light source is arranged obliquely to project the light beam to the reflecting mirror at a specific angle, then the optical path can be established, but the light source occupies a large space and the housing thickness increases
Solution Approach 1:
The patent changes the arrangement dimension of the light source from oblique to substantially perpendicular relative to the reflective light valve. By utilizing the perpendicular arrangement combined with a beam splitter positioned at a 45-degree angle, the optical path is redirected through a different spatial dimension, allowing the light beam to reach the reflecting mirror while keeping the housing thickness minimal.
2Ease of manufacture
If the light source is arranged obliquely, then the optical components can be coupled, but the space between the light source and housing is insufficient, limiting air flow and heat dissipation
Solution Approach 1:
The patent positions the light source substantially perpendicular to the reflective light valve, creating sufficient clearance between the light source and the housing wall. This perpendicular arrangement, combined with the beam splitter's 45-degree positioning, redirects the optical path through a different spatial dimension, providing adequate space for air circulation and heat dissipation while maintaining proper optical component coupling.
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
This configuration allows for a thinner housing, improved heat dissipation, and adjustable optical paths, enabling a more compact and efficient projecting apparatus with reduced space occupation and enhanced thermal management.
Implementation Method 1
The prism is disposed in the first optical path and refracts the light beam to propagate along a second optical path, which intersects the first optical path
Data Source
AI summary
A projecting apparatus is disposed within a space defined with first, second and third imaginary planes perpendicular to one another and includes a light source, a prism, a reflecting mirror, and a reflective light valve. The light source emits a light beam propagating along a first optical path parallel with the first and second imaginary planes. The prism is disposed in the first optical path, and refracts the light beam to propagate along a second optical path. The reflecting mirror is disposed in the second optical path, and reflects the light beam to propagate along a third optical path. The reflective light valve is disposed in the third optical path, and has an active plane parallel with the second imaginary plane. Therefore, the light source can be placed horizontally with respect to the reflective light valve to reduce the space occupied by the light source.