34results about How to "Display image is clear" patented technology

In a projection type image display apparatus, when the angle of light incident on the multi-layer film of a polarizing beam splitter for synthesizing an optical path becomes uneven, the loss of the light occurs. So, the projection type image display apparatus of the present invention is provided with an illuminating optical system 1-5 b, a color separating and synthesizing optical system 7 for separating illuminating light from the illuminating optical system into a plurality of color lights and making the respective color lights enter image display elements 8 r- 8 b provided for the respective color lights, and synthesizing a plurality of image lights emerging from these image display elements, a projection optical system 10 for projecting and displaying the image lights synthesized by the color separating and synthesizing optical system, and polarizing elements Pr, Pg, Pb for transmitting only a particular polarized component light therethrough disposed between the color separating and synthesizing optical system and the image display elements.

The present invention provides a projection screen capable of sharply displaying an image by minimizing the influence of the loss of light that occurs on a polarized-light selective reflection layer and of providing high image visibility. A projection screen includes: a polarized-light selective reflection layer that selectively reflects a specific polarized-light component; and a substrate that supports the polarized-light selective reflection layer. The polarized-light selective reflection layer includes a plurality of partial selective reflection layers that are laminated to one another, and the partial selective reflection layers have cholesteric liquid crystalline structures, owing to which they selectively reflect a specific polarized-light component. The cholesteric liquid crystalline structure of each partial selective reflection layer comprises a plurality of helical structure parts that are different in direction of helical axis, and, owing to structural non-uniformity in the cholesteric liquid crystalline structure, diffuses light (imaging light) that is selectively reflected. The partial selective reflection layer (11a) is for selectively reflecting light in the green (G) color wave range, the partial selective reflection layer (11b) is for selectively reflecting light in the blue (B) color wave range, and the partial selective reflection layer (11c) is for selectively reflecting light in the red (R) color wave range. These partial selective reflection layers (11a, 11b and 11c) are successively laminated in this order from the substrate side.

A liquid crystal display apparatus includes: an illumination section having a light source and an optical guide member, and a reflection type LCD having a display region including a plurality of pixels for performing a display function, the optical guide member having first and second principal faces opposite to each other and first and second end faces opposite to each other. The reflection type LCD is disposed on or above the first principal face of the optical guide member. Light from the light source enters the optical guide member at the first end face, exits the optical guide member at the first principal face so as to be incident on the reflection type LCD and reflected therefrom, reenters the optical guide member at the first principal face, and exits the optical guide member at the second principal face toward a viewer.

Provided is a colored composition including at least one selected from the group consisting of a compound represented by the following formula (I) and a tautomer thereof: wherein in formula (I), R2 to R5 each independently represent a hydrogen atom or a monovalent substituent; R7 represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group or a heterocyclic group; Ma represents a metal or a metal compound; X3 and X4 each independently represent NR, a nitrogen atom, an oxygen atom, or a sulfur atom, wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group; X5 represents a group required to neutralize the charge of Ma; a represents 1 or 2; and R8 to R17 each independently represent a hydrogen atom or a monovalent substituent, provided that at least one of R8 to R17 represents a particular polymerizable substituent.

The invention discloses a gastrointestinal contrast agent containing traditional Chinese medicine ingredients. The gastrointestinal contrast agent consists of the following components in parts by weight: 55-75 parts of barium sulfate, 5-15 parts of a traditional Chinese medicine extract and 20 parts of mannitol, wherein the traditional Chinese medicine extract is prepared by a method comprising the following steps: mixing the following materials in parts by weight: 20-30 parts of bark of Chinese corktree, 10-20 parts of dried tangerine peel, 10-20 parts of coix seed, 5-10 parts of all-grass of hirsute gonostegia, 10-20 parts of tuckahoe, 20-30 parts of hawthorn, 5-15 parts of herb of christensen ceropegia, 20-30 parts of officinal magnolia bark, 10-20 parts of immature bitter orange, 20-30 parts of dwarf lilyturf tuber, 10-20 parts of Chinese angelica, 10-20 parts of turmeric root-tuber, 5-15 parts of Chinese caterpillar fungus and 10-20 parts of licorice; mixing; immerging by adding water; decocting; filtering; and drying. The gastrointestinal contrast agent disclosed by the invention can achieve beneficial effects of shortening the examination time, relieving side effects (nausea, emesis, inappetence and fatigue) caused by X-ray examination and the like, can also achieve an effect of nourishing or taking good care of stomach, liver and the like, and has a better using effect.

The invention provides a headset display device based on a liquid crystal lens array, relating to the stereo display technology field. The headset display device comprises a display screen and a liquid crystal lens array which is arranged in the front of the display screen and opposite to the human eye; the crystal liquid lens array comprises a plurality of liquid crystal lenses; the plurality of liquid crystal lenses are arranged in M rows and N lists; the liquid crystal lens comprises a first glass substrate and a second glass substrate which are arranged in opposition; the first glass substrate is coated with level electrodes; the second glass substrate is coated with n annular electrodes which are arranged in a concentric ring manner; and liquid crystal is filled between the first glass substrate and the second glass substrate. Each liquid crystal lens in the liquid crystal array is adjustable, which can regulate the whole part or the local part of the display screen and performs 2D or 3D displaying through partitioning, and the definition is adjustable. The invention can perform scene dynamic zooming according to the different display content, and can realize the human eye initiative selection and focusing.

The invention relates to a three-dimensional-steering periodontal endoscope with a disposable sleeve. The periodontal endoscope comprises an endoscope body, a handle, the disposable sleeve and an expansion tube and is characterized in that the handle is arranged on the endoscope body, the disposable sleeve is arranged on the endoscope body, and the expansion tube is arranged on the handle; a camera and a camera sleeve are mounted in an endoscope cone transversely arranged on an endoscope body base, a coupling lens is arranged on the left side of the camera in the camera sleeve, the endoscope cone is provided with a mirror tube with an object slide, an objective lens and an image transmitting rod are arranged on the left side in the object slide, the upper portion of the endoscope body baseis provided with an LED, and the right side of the endoscope body base is provided with a cable-passing gland; the endoscope body base is vertically provided with a flexible spring tube, a cable clamp is arranged outside one end of the flexible spring tube, the other end of the flexible spring tube is provided with a standard connector, a rubber sleeve is arranged outside the upper portion of theflexible spring tube, and the lower portion of the flexible spring tube is provided with cable clamp sleeve with a cable jacket outside. The periodontal endoscope is reasonable in design, small in size, multifunctional, convenient to use, clear in image display, capable of being used as a periodontal diagnosis and surgery instrument and the like.

The invention discloses a gastrointestinal contrast agent containing a traditional Chinese medicine extract. The gastrointestinal contrast agent is prepared from the following components in parts by weight: 55-75 parts of barium sulfate, 5-15 parts of the traditional Chinese medicine extract and 20 parts of mannitol, wherein the traditional Chinese medicine extract is prepared by the following steps: taking 25 parts of tuber fleeceflower stems, 15 parts of polygala tenuifolia, 10 parts of rhizoma acori graminei, 8 parts of cynanchum auriculatum, 25 parts of seville orange flowers, 15 parts of emblic leafflower fruits, 25 parts of hawthorn, 10 parts of white hyacinth beans, 10 parts of edestan, 15 parts of radix curcumae, 25 parts of astragalus membranaceus, 15 parts of codonopsis pilosula, 15 parts of sedum sarmentosum, 15 parts of pseudo-ginseng and 25 parts of liquorice; mixing; soaking with water; decocting; filtering to obtain a filtrate; and drying the filtrate to obtain the gastrointestinal contrast agent. The gastrointestinal contrast agent disclosed by the invention has the beneficial effects of shortening the inspection time, relieving the side effects brought by X-ray inspection, has a maintaining or health-care effect on stomach, liver and the like and is good in using effect.