An optical-characteristics measurement device (10; 11) comprising: a light irradiation unit for irradiating a sample with light, the light irradiation unit including a light emission unit; and a light reception unit for receiving light reflected from the sample; wherein the light reception unit has a light sensor array including a plurality of photoreceptors, and a light guide unit configured to guide light from the sample to different photoreceptors among the plurality of photoreceptors according to the position and traveling direction of light on and from the sample, wherein the light guide unit has an imaging lens and a plurality of light guide lenses, the imaging lens is configured to guide light from the sample to different light guide lenses among the plurality of light guide lenses according to the position of light on the sample, and each of the plurality of light guide lenses is configured to guide light guided through the imaging lens to different photoreceptors among the plurality of photoreceptors according to the position and traveling direction of light on and from the sample, wherein light from the sample includes light from a first position of the sample and light from a second position of the sample, light from the first position of the sample includes light traveling in a first direction and light traveling in a second direction, light from the second position of the sample includes light traveling in a third direction and light traveling in a fourth direction, the plurality of photoreceptors include a first photoreceptor, a second photoreceptor, a third photoreceptor, and a fourth photoreceptor, and the light guide unit is configured to guide light from the first position of the sample traveling in the first direction to the first photoreceptor, light from the first position of the sample traveling in the second direction to the second photoreceptor, light from the second position of the sample traveling in the third direction to the third photoreceptor, and light from the second position of the sample traveling in the fourth direction to the fourth photoreceptor, characterized in that the device further comprises a half mirror which is arranged between the sample and the light guide unit and configured to guide light from the light emission unit to the sample and transmit light from the sample. a light irradiation unit for irradiating a sample with light, the light irradiation unit including a light emission unit; and a light reception unit for receiving light reflected from the sample; wherein the light reception unit has a light sensor array including a plurality of photoreceptors, and a light guide unit configured to guide light from the sample to different photoreceptors among the plurality of photoreceptors according to the position and traveling direction of light on and from the sample, wherein the light guide unit has an imaging lens and a plurality of light guide lenses, the imaging lens is configured to guide light from the sample to different light guide lenses among the plurality of light guide lenses according to the position of light on the sample, and each of the plurality of light guide lenses is configured to guide light guided through the imaging lens to different photoreceptors among the plurality of photoreceptors according to the position and traveling direction of light on and from the sample, wherein light from the sample includes light from a first position of the sample and light from a second position of the sample, light from the first position of the sample includes light traveling in a first direction and light traveling in a second direction, light from the second position of the sample includes light traveling in a third direction and light traveling in a fourth direction, the plurality of photoreceptors include a first photoreceptor, a second photoreceptor, a third photoreceptor, and a fourth photoreceptor, and the light guide unit is configured to guide light from the first position of the sample traveling in the first direction to the first photoreceptor, light from the first position of the sample traveling in the second direction to the second photoreceptor, light from the second position of the sample traveling in the third direction to the third photoreceptor, and light from the second position of the sample traveling in the fourth direction to the fourth photoreceptor, characterized in that the device further comprises a half mirror which is arranged between the sample and the light guide unit and configured to guide light from the light emission unit to the sample and transmit light from the sample.