Himax Technologies, Inc.

Yu-Ching Cheng

A wide-angle optical lens system includes a negative-powered first lens group, a positive-powered second lens group and a positive-powered third lens group arranged in an order from an object side to an image side.

Wide-angle optical lens system

A light source module having a wide field of view (FOV) is provided. The light source module includes a plurality of point light sources and a total internal reflection (TIR) lens array. The point light sources are configured to respectively emit a plurality of light beams. The TIR lens array is disposed on paths of the light beams and includes a transparent substrate and a plurality of TIR lenses arranged on the transparent substrate. The transparent substrate is located between the point light sources and the TIR lenses. Each of the TIR lenses has an inclined surface inclined with respect to the transparent substrate, and inclined surfaces of the TIR lenses are configured to totally internally reflect the light beams to form the wide FOV.

Light source module

A microlens array device includes a substrate and a microlens array. The microlens array is disposed on the substrate and includes a plurality of first lenses and a plurality of second lenses. Each of the first lenses is used to project a first pattern on a far field. Each of the second lenses is used to project a second pattern on the far field. The first pattern has a first area on the far field. The second pattern has a second area on the far field. The first area is different from the second area. One of the two patterns is completely overlapped on the other one of the two patterns.

Microlens array device used to project at least two patterns for improving control of projecting light

The optical apparatus includes a first light source, a second light source, and at least one lens unit. An incident surface of the lens unit faces the first light source and the second light source. The normal vector of a first emitting surface of the first light source is tilted toward a first direction opposite to the second light source. The normal vector of a second emitting surface of the second light source is tilted toward a second direction opposite to the first light source. The first direction is opposite to the second direction such that an angle is formed between the normal vector of the first emitting surface and the normal vector of the second emitting surface. The angle is greater than 0 degree and less than or equal to 90 degrees.

Optical apparatus with tilted light source

An illumination device including a light source array and a microlens array is provided. The light source array includes a plurality of light sources arranged in an array. The microlens array includes a plurality of microlenses arranged in an array. The illumination device satisfies the following conditional expressions so as to produce structured light: z=z0+dz and z0=(m/2)*(P/&#x3bb;), where z is a distance between the light source array and the microlens array along a central axis of the microlens array, P is a lens pitch of the microlens array, &#x3bb; is a wavelength of the light sources, m is an integer and m' is a non-integer number. The illumination device satisfies 1%&#x2264;dz/z0&#x2264;5% or &#x2212;5%&#x2264;dz/z0&#x2264;&#x2212;1%.

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Tainan, Taiwan

Yu-Ching Cheng