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54results about How to "More light" patented technology

Wide-viewing-angle optical imaging lens system

ActiveCN107966786AMeet the needs of thin and portableEasy to optimizeOptical elementsOptical axisImaging quality
The invention discloses a wide-viewing-angle optical imaging lens system which comprises a first lens having negative refractive power, wherein the image side surface of the first lens is a concave surface; a second lens having positive refractive power; a third lens having negative refractive power, wherein the object side surface and the image side surface of the third lens are concave surfaces;a fourth lens having positive refractive power, wherein the object side surface of the fourth lens is a concave surface near the optical axis and comprises at least one convex surface in the off-axisposition; a fifth lens having refractive power; and a sixth lens having refractive power, wherein the object side surface is a convex surface in the optical axis, the image side surface is a concavesurface in the optical axis, and the object side surface and the image side surface respectively comprise at least one point of inflexion. The first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are arranged from the object side to the image side in turn and meet the relational expressions: AG45<0.3, AG56<0.3 and SAG42-SAG41>0.3. The reasonable surface structure and space distribution between the lenses are adopted, the total length of the system can be effectively limited under the condition of wide viewing angle, and the aperture is large so that more quantity of incident light can be realized in imaging and the imaging quality can be enhanced.
Owner:GUANGDONG XUYE OPTOELECTRONICS TECH

Optical camera

ActiveCN108152924APress the total lengthMore lightOptical elementsCamera lensPhysics
The invention discloses an optical camera which comprises a first lens with negative refraction power, a second lens with positive refraction power, a third lens with refraction power, a fourth lens with refraction power, a fifth lens with negative refraction power and a sixth lens with refraction power in sequence from the object side to the image side along the optical axis of the camera. The object side face of the second lens is a convex face, the image side face of the second lens is a convex face, the position, close to the optical axis, of the object side face of the fifth lens is a convex face, the position, close to the optical axis, of the image side face of the fifth lens is a concave face, the position, outward away from the optical axis, of the concave face of the fifth lens is provided with at least one convex face, the position, close to the optical axis, of the image side face of the sixth lens is a concave face, and the position, away from the optical axis, of the image side face of the sixth lens is provided with at least one inflection point. The optical camera meet the condition that (R51+R52)/(R51-R52) is larger than 1.8 and smaller than 4. By means of the technical scheme, through the reasonable profile structure and proper lens internal distribution, the best optimization is conducted on a system. The large field angle is obtained, the total length of thesystem can be effectively restrained, the current light and portable requirements are met.
Owner:GUANGDONG XUYE OPTOELECTRONICS TECH
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