Light convergence module

Abstract

The invention relates to a light synthesis module, comprising: first light guide pole, second light guide pole, third light guide pole, first filter, second filter, first light source, second light source and third light source, where the first light guide pole has an inclined end part, the second light guide pole has an inclined end part, and the third guide pole also has an inclined end part; the first filter is arranged at the inclined end of the first light guide pole, and the second filter is arranged at the inclined end of the second light guide pole; the first light source is adjacent to the first light guide pole and emits first light beam through the first light guide pole to first filter to a light synthesis region; the second light source is adjacent to the second light guide pole to emit second light beam through the second light guide pole to the second and first filters to the light synthesis region; the third light source is adjacent to the third light guide pole to emit third light beam through the third light guide pole to the second and first filters to the light synthesis region. And the invention also discloses the other light synthesis module. And the invention can save space and improve efficiency and applicability.

Description

technical field [0001] The invention relates to a light-combining module and a projection device, in particular to a light-combining module and a projection device with a light guide column, which can improve performance and applicability. Background technique [0002] Since the commercialization of light-emitting diodes in the 1960s, due to their high shock resistance, long life, and small size, their application range has gradually spread to various items in daily life, such as lighting devices and display devices as light sources or backlights. . In a display device, LEDs need to be combined with other optical components to produce full-color visual effects, and one of the important optical components is a dichroic filter. The filter is made of a glass plate coated with various dichroic films. When the light passes through the filter, it will filter out some of the wavelengths of light and let the other part of the wavelength of light pass through. Because of their opti...

AI Technical Summary

Problems solved by technology

[0005] Although the light combining module 1 can achieve the effect of combining light, because its two filters are set separately, it requires a larger space, and the strength of its structure is also small; in addition, the light combining module 1 The light-combining area 16 can only be fixed in the same direction, and the selectivity of the application is low

In addition, it does not disclose how to apply it to other optical devices (such as projection devices), so that the light combination module 1 cannot perform other functions except light combination

[0006] It can be seen that the above-mentioned existing light-combining module obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

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