A headset for virtual reality applications includes an optical element configured to modify light from an electronic display in the headset and to direct the modified light to a user. The optical element may include a Fresnel lens secured to a lens by securing the Fresnel lens to a mold and inserting a casting material into the mold so the casting material forms the lens and a portion of the casting material exists on and past an edge of the Fresnel lens. This encases the edge of the Fresnel lens in the casting material, securing the Fresnel lens to the lens.

The present technique relates to a camera module and an electronic apparatus that allow a camera module to be used for various purposes. The camera module includes a first pixel array in which pixels that receive light having an R, G, or B wavelength are two-dimensionally arranged in a matrix form and a second pixel array in which pixels that receive light having a wavelength region of visible light are two-dimensionally arranged in a matrix form and a first optical unit that converges incident light onto the first pixel array and a second optical unit that converges the incident light onto the second pixel array. The present technique can be for example applied to a camera module and the like.

An athermal lens system includes a converging lens element having a negative first thermo-optic coefficient, and a diverging lens element having a second thermo-optic coefficient more negative than the first thermo-optic coefficient, wherein the diverging lens element is coupled with the converging lens element to form a converging athermal doublet lens.

A lens assembly and a method of making the assembly are described. The lens assembly includes a first lens and a second lens slidably coupled with the first lens. The second lens includes a silicone material and has a Fresnel pattern surface. Also described is a display device including the lens assembly and an array of light emitting devices coupled with the lens assembly for outputting light through the lens assembly.

A method for making a hybrid lens includes providing, in a mold having a first Fresnel pattern, (i) a first lens and (ii) a silicone material comprising silicone and curing the silicone material in the mold to form a hybrid Fresnel lens. The cured silicone material is mechanically coupled with the first lens; and the cured silicone material has a second Fresnel pattern that corresponds to the first Fresnel pattern. A hybrid lens made by this method is also described. A hybrid lens includes a first lens mechanically coupled with a cured silicone material. The cured silicone material has a Fresnel pattern on a surface that faces away from the first lens.

A method of making an optical assembly includes obtaining a first optical element having a first optical surface and a second optical surface that is opposite to the first optical surface, and a second optical element having a third optical surface and a fourth optical surface that is opposite to the third optical surface. The second optical element is distinct and separate from the first optical element. The method also includes obtaining an enclosure configured to enclose the first optical element and the second optical element. The method further includes providing one or more fillers in the enclosure so that the one or more fillers are in contact with the second optical surface and the third optical surface, thereby making the optical assembly. Also disclosed are an optical assembly made by the method and an optical imaging device including the optical assembly.

Described herein is method of co-molding an optical lens includes injection-molding a first layer, injection-molding a second layer against at least a portion of the molded first layer to form a co-molded blank, and forming the optical lens from the co-molded blank. Co-molding apparatuses for implementing this and other co-molding methods are also described.

A manufacturing method of an image pickup apparatus for endoscope includes: fabricating a first optical wafer and a second optical wafer including spacers; disposing walls made of a first resin, being greater in height than the spacers, and enclosing optical paths without any gap; clamping the first optical wafer and the second optical wafer with the walls being interposed between the first optical wafer and the second optical wafer; charging a second resin around the walls; performing curing treatment on the second resin to cause the second resin to shrink, and fix the first optical wafer and the second optical wafer in a state where an interval between the first optical wafer and the second optical wafer is defined by the spacers; and cutting a bonded wafer.

A process for automatically gluing a photochromic lens, includes: supplying an adhesive comprising photochromic molecules; supplying an external lens; supplying a polarizing film from a reel; forming the polarizing film on a spherical mold; applying a first portion of the adhesive to the polarizing film positioned on the spherical mold; compressing the polarizing film and the external lens, while measuring a thickness of the first portion of the adhesive therebetween; supplying an internal lens; applying a second portion of the adhesive to the internal lens; compressing the internal lens and the external lens having the polarizing film formed thereon, while measuring a thickness of the second portion of the adhesive therebetween using a measuring device; stopping the compression of the internal lens and the external lens; cutting excess polarizing film; and catalyzing the adhesive to form the glued photochromic lens.

An integrated optical assembly comprises an optics mount, an optical element comprising material that is optically transparent, the optical element molded in the optics mount, and an optical aperture wherein the optical aperture is secured in fixed position with respect to the optics mount and the transparent optical element.