82results about How to "Improve night vision" patented technology

Transmittance of light through a pupil or to the retina of a patient's eye is controlled to improve night vision. In one example, this involves providing an ocular device in the form of a contact lens having a central, disk shaped clear window having a diameter that is custom designed based high-order aberrations in an eye and less than the diameter of the patient's pupil at night. The ocular device also has an annular portion that surrounds the disk shaped window portion. The annular portion comprises material that provides reduced light transmittance to provide controlled light transmission at pupil periphery at night and to the retina of a patient. Such controlled light transmittance can reduce photon noise that otherwise can exacerbate halos and ghosts that one can experience at night and/or it can improve night vision contrast. In the case of a contact lens and corneal inlay, light transmittance is controlled across the cornea. In the case of an intraocular lens, light transmittance is controlled across the pupil.

This invention relates to a reproducible system for the production of stable, genetically transformed maize cells, and to methods of selecting cells that have been transformed. One method of selection disclosed employs the Streptomyces bar gene introduced by microprojectile bombardment into embryogenic maize cells which were grown in suspension cultures, followed by exposure to the herbicide bialaphos. The methods of achieving stable transformation disclosed herein include tissue culture methods and media, methods for the bombardment of recipient cells with the desired transforming DNA, and methods of growing fertile plants from the transformed cells. This invention also relates to the transformed cells and seeds and to the fertile plants grown from the transformed cells and to their pollen.

The invention belongs to the technical field of photoelectric detection, in particular to a distance measuring device and a method thereof. The method comprises the following steps of: assembling a large field by using a 2*3 array of multispectral cameras, obtaining background images and labeling characteristic reference points by using real-time image arrangement, and calculating an object distance by using an image convergence shooting algorithm. Because the invention adopts a large-field angle, observed objects are more easily found, and judging whether the observed objects are the same one is more accurate; and because the characteristic reference points are selected after image arrangement, the data volume of object calculation is smaller, and calculation is faster.

The invention relates to an antiglare night vision device for an automobile, in particular to a sunshading board, which relates to automobile accessories. The device comprises a sunshading board body connected with a rotating shaft in the automobile and a liquid crystal light barrier arranged on the sunshading board body. The liquid crystal light barrier is connected with a micro-processor system which is connected with a photosensitive sensor; the photosensitive sensor is used for monitoring light intensity and transmitting a light intensity signal to the micro-processor system; and the micro-processor system judges that when the light intensity is suddenly increased, electrical signals at two ends of the liquid crystal light barrier are controlled and transparency of the liquid crystal light barrier is reduced, thereby achieving antiglare function. As the technical scheme is used, the invention can prevent stimulation of night vehicle houselights or sun luminescent on eyes of a driver, thereby ensuring safely driving, and the device has the advantages of simple structure, convenient use, high clarity and the like.

A night vision system includes an eyepiece and a video camera to capture a video image that can be remote to the eyepiece. The eyepiece includes an optical device with a front side and a back side. A splitting surface within the optical device reflects some of a video image toward an eye of a user of the eyepiece, and the splitting surface further allows some light of an optical image received from in front of the eyepiece to past through the eyepiece to the eye of the user. The layer of switchable coating on the eyepiece can be switched between a transparent mode and an opaque mode by the user. When in an opaque mode no light can leave the front side of the optical device and only the video image can be seen through the eyepiece.

The invention relates to a vehicle device for external viewing which comprises a car body, a right rearview mirror and a left rearview mirror, a camera, a display and a control module, at least a backward camera which is needed to be arranged on the external of the car body; at least a display is needed to be arranged on the interior of the car body; the camera and the display are connected with the control module by a lead. When a vehicle is under normal running state, the display, by the control of the control module, can show the images at the right, left and back sides of the vehicle; the invention has the advantages of large viewing angle, no distortion of the images of rear scenes, small blind areas, concentrated observation points, night viewing functions and minimum dependence on external environment.

The invention discloses a distant range laser infrared night visual camera, which comprises a camera, a CCD (Charge-Coupled Device) image sensor, a high-speed DSP (Digital Signal Processor), a radiator, an infrared illumination module, a power supply management and a power supply, and is characterized in that the infrared illumination module consists of a thrice optical lens and an infrared laser illuminator; the camera is connected with the CCD image sensor; the CCD image sensor is connected with the high-speed DSP; the infrared illumination module is also connected with the DSP; the infrared laser illuminator is connected with radiator; and the power supply powers all the modules and components via a power supply management module. According to the invention, the tertiary optical lens focuses the laser light beam of the infrared laser illuminator to enable the infrared laser illuminator to achieve distant range video monitoring under dark environments without visible light and shimmer.

The invention discloses a large aperture telephoto lens. The large aperture telephoto lens comprises a first optical lens with positive focal length, a second optical lens with negative focal length,a third optical lens with positive focal length, a fourth optical lens with negative focal length, a diaphragm, a fifth optical lens with positive focal length, a sixth optical lens with positive focal length, and a seventh optical lens with negative focal length which are orderly arranged from an object side to an image side; one surface, towards the object side, of each of the first optical lensand the fourth optical lens is a convexity; one surface, towards the image side, of each of the third optical length and the fourth optical lens is a concavity; the second optical lens and the seventh optical lens are biconcave optical lenses; the first optical lens, the fifth optical lens and the sixth optical lens are biconvex optical lenses; the focal length of the first optical lens is f1, the focal length of the second optical lens is f2, and the entire focal length of the large aperture telephoto lens is f, (f1/f) is more than 0.55 and less than 0.95, (f1/f2) is more than -0.98 and lessthan -0.38. Compared with the prior art, the maximum aperture of the large aperture telephoto lens can achieve F1.4, the amount of light is sufficient, and a night vision effect is excellent.

The invention relates to a wide-angle distortionless lens based on an aspheric surface. The wide-angle distortionless lens comprises a front lens group and a rear lens group which are sequentially arranged in the light incident direction, a fixed or variable diaphragm is further arranged between the front lens group and the rear lens group, the focal length of the front lens group is 20-35 mm, andthe focal length of the rear lens group is 3-5 mm. The front lens group comprises a first lens and a second lens which are sequentially arranged along the light incident direction, the rear lens group comprises a third lens and a fourth lens which are sequentially arranged along the light incident direction; the first lens, the third lens and the fourth lens are aspheric lenses, and the second lens is a spherical lens; the first lens is a positive meniscus lens, the second lens is a negative meniscus lens, the third lens is a biconvex lens, and the fourth lens is a negative meniscus lens. According to the invention, a combined structure of an aspheric surface and a spherical surface is adopted, and the rear lens group adopts a glued structure of the aspheric surface and the aspheric surface, thereby having the characteristics that the number of the whole lenses is small, the field angle is greater than 90 degrees, and the distortion value reaches 1.2%.

The invention relates to a uniform-thickness 3mm high-light-transmission zero-temperature-drift optical structure and an imaging method thereof. The uniform-thickness 3mm high-light-transmission zero-temperature-drift optical structure comprises a front lens group A, a diaphragm C and a rear lens group B which are successively arranged in an incident direction of light from left to right, whereinthe front lens group A comprises a crescent concave lens A1, a biconcave minus lens A2 and a biconvex plus lens A3 which are arranged successively from left to right; the rear lens group B comprises acrescent plus lens B1, a gluing assembly and a biconvex plus lens B4 which are arranged successively from left to right; and the gluing assembly consists of a biconvex plus lens B2 and a crescent minus lens B3 which are closely connected. The uniform-thickness 3mm high-light-transmission zero-temperature-drift optical structure is reasonable in structural design, large in luminous flux, low in sensitivity and low in day and night defocusing, the image quality is improved under the conditions of high and low temperatures, and zero temperature drift is realized really.

The invention discloses a glass curtain wall unit. The glass curtain wall unit comprises a glass assembly, an LED glass decorating component and a connecting support used for connecting the glass assembly with the LED glass decorating component. The glass assembly comprises a glass body and a fixing support used for fixing the glass body. The LED glass decorating component comprises LED glass and an LED glass clamping device clamped to one side of the LED glass. The LED glass clamping device is fixedly connected to the connecting support, and the fixing support is fixedly connected to the connecting support. The LED glass decorating component is transparent in color and does not influence the attractiveness of a building; the LED glass is high in brightness and small in power consumption, so that the night visual effect of the building is good, and meanwhile energy conservation and environment protection are achieved; the glass curtain wall unit is simple in structure, convenient to machine, capable of being installed on site and convenient and flexible to install. The invention further provides a glass curtain wall. The glass curtain wall is good in overall decorating effect, can block most ultraviolet light and redundant sunlight and heat, and improves the comfort level of the building.

The invention relates to the technical field of communication equipment, and particularly relates to an intercom doorbell high-definition video telephone. The intercom doorbell high-definition video telephone comprises an outdoor unit and an indoor host, wherein a water drain cover is fixedly arranged on the upper side of a base surface of the outdoor unit, a fingerprint identifier is arranged inthe center of the base surface of the outdoor unit, a white light night vision lamp is arranged on the base surface of the outdoor unit close to the upper side of the fingerprint identifier, a high-definition camera is arranged on the base surface of the outdoor unit close to the upper side of the white light night vision lamp, an external microphone is arranged on the base surface of the outdoorunit close to the right side of the high-definition camera, indicator lights and call buttons are sequentially arranged on the base surface of the outdoor unit close to the lower side of the fingerprint identifier from left to right, an external loudspeaker is arranged on the lower side of the base surface of the outdoor unit, and an LED liquid crystal display screen is embedded in a base surfaceof the indoor host. The overall equipment is simple to operate, and has a good high-definition night vision effect, high stability and practicability, and a certain promotion value.

The invention discloses an infrared lamp control module on basis of a 555 timer and an infrared camera. The infrared lamp control module on basis of the 555 timer comprises an infrared lamp control module and an infrared lamp module; and the infrared lamp control module is electrically connected with the infrared lamp module. The infrared lamp control module on basis of the 555 timer is characterized by also comprising a fine regulating module and a PWM (Pulse Width Modulation) signal generating module, wherein the fine regulating module is electrically connected with the PWM signal generating module; the PWM signal generating module is electrically connected with the infrared lamp control module; the PWM signal generating module comprises a resistance adjustable unit, an electric power storage unit and the 555 timer; the resistance adjustable unit is respectively and electrically connected with the electric power storage unit and the 555 timer to form a multivibrator; the fine regulating module comprises a knob switch; and the knob switch is electrically connected with the resistance adjustable unit. According to the invention, the brightness of an infrared lamp can be manually regulated according to the variation of the environment, the optimal night vision effect can be obtained, and meanwhile, cost of the infrared camera also can be saved.

The invention discloses a cable conduit remote control car with a rope, which comprises a motor pulley shaft. A motor pulley is connected to the outer side of the motor pulley shaft; a fixed pulley plate is connected to the bottom of the motor pulley; a motor shaft is installed on the inner side of the fixed pulley plate; and an aluminum alloy baffle is connected to the top end of the motor shaft.According to the cable conduit remote control car with the rope, under effects of a clamping mechanism, when the shell is inserted into the inner groove of the base through a first clamping piece connected with the bottom end, a second clamping piece is pressed to rotate leftwards through a movable connecting piece, and meanwhile a first spring is pressed to deform; when the first clamping pieceis clamped with the second clamping piece, the first spring quickly restores the second clamping piece to the original shape, the shell and the base can be conveniently fixed, the shell can conveniently protect a monitoring unit and a lighting unit which are connected to the base, the monitoring unit and the lighting unit are prevented from being damaged by collision of an external force, and a push rod can move leftwards in an open groove in the outer wall of an inner groove of the base by pushing the push rod.

The invention discloses an automatically adjusted infrared camera. The automatically adjusted infrared camera comprises an infrared optical camera, a visible light camera, an RJ45 interface, an infrared lamp and a processor, wherein the processor is integrated with a video coder and decoder circuit, a pulse-width modulation circuit and a video analysis algorithm circuit; the digital signal output end of the infrared optical camera is connected with the digital signal input end of the video analysis algorithm circuit; the video analysis algorithm circuit is connected with the pulse-width modulation circuit; the output end of the pulse-width modulation circuit is connected with the infrared lamp; the video signal output end of the visible light camera is connected with the video signal input end of the video coder and decoder circuit; and the communication signal end of the processor is connected with the RJ45 interface. By using the automatically adjusted infrared camera, data acquisition can be provided for forest fire prevention monitoring around the clock in all regions for 7*24 hours in a high-quality and multi-application mode.

The invention relates to a seaweed natural carrot cosmetic, wherein it is formed by basic material and dye. The invention is characterized in the seaweed natural carrot matched with tocofecol to replace chemical composite dye. The invention has seaweed natural carrot which is neutralized and the precursor of vitamin A, to improve skin property and the eye ability in dark.

Provided is a method for improving day photopic vision and/or cone-derived visual field and visual function in a subject suffering from a retinal disease or trauma including administering to the subject a pharmaceutically effective amount of crude Dunaliella powder. Also provided is a method for improving night vision and/or rod derived visual field in a subject suffering from a retinal disease including administering to the subject a pharmaceutically effective amount of crude Dunaliella powder. A pharmaceutical composition for improving day vision and/or visual field in a subject suffering from a retinal disease including crude Dunaliella powder is also provided.