Changzhou AAC Raytech Optronics Co., Ltd.

A microscope objective sequentially includes from an exit side to an object side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having positive refractive power, a seventh lens having negative refractive power, an eighth lens having positive or negative refractive power, a ninth lens having positive refractive power, a tenth lens having positive refractive power, an eleventh lens having negative refractive power, a twelfth lens having positive refractive power, a thirteenth lens having negative refractive power, and a fourteenth lens having positive refractive power. Following relational expressions are satisfied: 1.60≤f9/f≤4.00; −3.00≤f10_11/f12_13≤−1.40; −9.00≤(R27+R28)/(R27−R28)≤−1.60; 0.05≤WD/TTL≤0.13; 2.40≤WD*NA≤5.50. The microscope objective has compact structure, has excellent optical performance, and meets the design requirements of low distortion, magnification of 10 times and long working distance.

An imaging optical lens, including seven lenses, which are, from an object side to an image side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens, a sixth lens having a positive refractive power and a seventh lens having a negative refractive power, which satisfy the following conditions: 1.10≤(R3+R4)/f≤1.70; 1.50≤f6/R12−f7/R14≤3.00; −3.30≤(R5+R6)/(R5−R6)≤−2.00; 3.00≤d1/d2≤12.00. The imaging optical lens of the present disclosure has excellent optical characteristics such as large-aperture, wide-angle and ultra-thinness design. The imaging optical lens has excellent optical characteristics, such as large-aperture, wide-angle and ultra-thinness characteristics.

The present disclosure discloses a glass product forming mold. The mold includes: a lower mold including a first surface and a upper mold including a second surface; the lower mold includes a first forming portion, the upper mold includes a second forming portion corresponding to the first forming portion; the lower mold includes at least one first effluence portion, the first effluence portion is formed by bending from the first surface and is located on the same side of the first surface as the first forming portion. The mold is easy to demold and the product consistency is good.

A camera optical lens includes, from an object side to an image side: a first lens with a positive refractive power; a second lens with a negative refractive power; a third lens; a fourth lens; a fifth lens with a positive refractive power; a sixth lens with a positive refractive power; a seventh lens with a negative refractive power. The camera optical lens satisfies the conditions of −8.00≤f2/f≤−2.50, 2.50≤(R5+R6)/(R5−R6)≤30.00 and R8/R7≤−1.50. The camera optical lens of the present disclosure has excellent optical performances, and meanwhile can meet design requirements of a wide-angle, a large aperture and ultra-thin.

The present application provides a lens module, including a lens barrel and a lens. The lens barrel includes a first barrel wall enclosed to form a light-through hole and a second barrel wall bent and extended from the first barrel wall. The first barrel wall includes a first wall arranged around the light-through hole and a second wall connecting the first wall to the second barrel wall. The first wall and the lens are spaced apart to form a first gap. The support portion is abutted against the second wall. The first barrel wall is provided with a recess formed by recessed from the second wall. One end of the recess is extended to a junction between the second wall and the second barrel wall, and the other end thereof is in communication with the first gap. This lens module has good exhaust performance and stable optical performance.

The present disclosure relates to the technical field of optical lens and discloses an optical system including, from an anterior side to a posterior side: an image surface, having a circular polarizer attached to a posterior side of the image surface to emit light; a first lens, provided with some reflective elements on an anterior-side surface and a lamination film on a posterior-side surface of the first lens, the lamination film comprising a reflective polarizing film and a quarter waveplate, and the reflective polarizing film provided at a posterior side of the quarter waveplate; and an aperture, located at the posterior side of the optical system; and the optical system further satisfying following conditions: VD≥6 mm; SDmax≤21.2 mm; and 0.71≤d4/TTL≤0.85. The optical system has good optical functions while satisfying a desire of design in a small size and a light weight.

The present disclosure relates to the field of optical lenses, and discloses a camera optical lens sequentially including five lenses from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, a fourth lens having refractive power, and a fifth lens having negative refractive power; and following relational expressions are satisfied: 0.50≤(R5+R6)/(R5-R6)≤0.81, −4.00≤(f2+f5)/f≤−2.50, 0.60≤d9/d8≤2.00, 2.80≤R9/R10≤6.00, and −8.00≤(R7+R8)/f≤−4.00. The camera optical lens provided by the present disclosure can satisfy the design requirements of large aperture, ultra-thinness and wide angle.

The present disclosure relates to the field of optical lenses, and discloses a camera optical lens sequentially including five lenses from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, a fourth lens having negative refractive power, and a fifth lens having positive refractive power; and following relational expressions are satisfied: 3.00≤(d5+d7)/d6≤4.50; 3.00≤(f5−f2)/f≤4.00; −2.15≤R3/R4≤−1.55; and 0.15≤d9/TTL≤0.25. The camera optical lens provided by the present disclosure can satisfy the design requirements of large aperture, ultra-thinness and wide angle.

The present disclosure relates to the field of optical lens, and discloses a camera optical lens. The camera optical lens includes from an object side to an image side: a first lens having positive refractive power, a second lens having refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power; and following relational expressions are satisfied: 0.15≤d6/TTL≤0.25; 0.80≤f1/f≤0.95; 0.97≤TTL/f≤1.20; 4.00≤(R5+R6)/(R5−R6)≤60.00; and 0.30≤d3/d5≤1.20. The camera optical lens of the present disclosure has excellent optical performance, and is particularly suitable for a mobile phone camera lens assembly, and a WEB camera lens composed of camera elements such as CCD, CMOS for high pixels

A camera optical lens includes from an object side to an image side: a first lens having positive refractive power, a second lens having negative refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power; and following relational expressions are satisfied: 0.65≤f1/f≤0.85; −1.50≤(f3−f4)/f2≤−0.80; 0.20≤(R3+R4)/f2≤0.80; 2.00≤d1/d3≤7.00; and −3.50≤f234/(d3+d5+d7)≤−2.50. The camera optical lens has excellent optical performance and is particularly suitable for a mobile phone camera lens assembly, and a WEB camera lens composed of camera elements such as CCD, CMOS for high pixels.