Projector optical device and projector
A technology for optical devices and projectors, which is applied in the field of projection display systems, can solve the problems of reduced light energy utilization rate and increased heat generation of projectors, and achieve the effect of enhancing brightness and improving light energy utilization rate
Pending Publication Date: 2021-10-15
成都德利普光电科技有限公司
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Problems solved by technology
[0003] In the existing way, in order to pursue a large screen of the projector, the high-brightness display effect is usually changed by increasing the power of the lighting source. However, in this way, the heat generation of the projector increases and the utilization rate of light energy decreases.
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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0024] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The embodiment of the invention provides a projector optical device and a projector, and relates to the field of projectors. The projector optical device comprises a first polarizing beam splitter, a first Lcos assembly, a second Lcos assembly and a second polarizing beam splitter. The first polarizing beam splitter is used for receiving light emitted by the light source and decomposing the light into first light and second light which are perpendicular to each other. The first Lcos assembly is arranged on a light path where the first light is located, so that the first light is converted into first image light, and the first image light is projected to the second polarizing beam splitter. The second Lcos assembly is arranged on the light path where the second light is located so that the second light can be converted into second image light, and the second image light can be projected to the second polarizing beam splitter. The second polarizing beam splitter is used for compounding the first image light and the second image light to form composite image light. The light energy utilization rate is improved, and the display brightness is enhanced.
Description
technical field [0001] The invention relates to the field of projection display systems, in particular to a projector optical device and a projector. Background technique [0002] For a long time, people's classification of projectors is usually based on the characteristics of the light valve, one of the core components of the projector. For example, the common DLP (Digital Light Processing, digital light processing) projector, LCD (Liquid Crystal Display, liquid crystal display) projector, LCOS (Liquid Crystal on Silicon, liquid crystal on silicon) projector, etc. [0003] In the existing way, in order to pursue a large screen of the projector, the high-brightness display effect is usually changed by increasing the power of the lighting source. However, in this way, the heat generation of the projector increases and the utilization rate of light energy decreases. Contents of the invention [0004] The object of the present invention is to provide a projector optical devi...
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IPC IPC(8): H04N9/31G03B21/20G02B27/28
CPCH04N9/3167H04N9/3102G03B21/2073G02B27/283
Inventor 鲜善洪
Owner 成都德利普光电科技有限公司