E kiia whānuitia ana he haumaru, he kore hoki e pokanoa te rongoā rama whero, engari he maha tonu ngā kaiwhakamahi e pātai ana i tētahi pātai nui:
Me whakamahi ahau i te rama whero hei tiaki i ōku kanohi?
Ko te whakautu e whakawhirinaki ana ki temomo taputapu, kaha o te mārama, te wāhi e rongoatia ana, me te tawhiti e kitea ana.
He mōrearea te rongoā rama whero ki ngā kanohi?
Ka whakamahia e te rongoā rama whero ngā roangaru whero me te tata-infrared (te tikanga630–660 nm me 810–880 nm), e mahi anakāore i roto i te hihi UVā, ko te tikanga he iti ake te kino i te mārama kikorangi.
Heoi anō, ko te pānga o te mārama kaha ki ngā kanohi ka pā tonu ki ēnei āhuatanga:
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Te taumahatanga o te kanohi
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Te mamae rangitahi
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Te aro ki te kanapa
Āhea e Manakohia ai te Tiaki Kanohi
E taunakihia ana te whakamahi i te tiaki kanohi i roto i ngā āhuatanga e whai ake nei:
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Te whakamahi i ngā pūnaha ngaio kaha-teitei, ngā pūnaha tinana katoa rānei
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Te rongoā i te mata, i ngā wāhi rānei e tata ana ki ngā kanohi
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Ngā wā roa o te whakaaturanga
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Te aro nui ki te mārama o te kanohi, ngā mate kanohi rānei
He maha ngā wā ka whakaratohia e ngā wāhi mahi ngaio he mōhiti tiaki hei tūpato.
Ina Kāore e Hiahiatia te Tiaki Kanohi
He mea whiriwhiri pea te tiaki kanohi ina:
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Te rongoā i ngā wāhi e tawhiti ana i te mata (tinana, waewae, tuara)
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Te whakamahi i ngā taputapu kāinga iti te kaha
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Me kati ngā kanohi i ngā wā poto o te kanohi
Heoi anō, he mea pai tonu kia karohia te pānga tika ki ngā kanohi.
Ngā Tikanga Pai mō te Haumaru o ngā Kanohi
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Kaua rawa e titiro tika ki ngā rama LED
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Whāia ngā tawhiti i tūtohutia e te kaihanga
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Whakawhāitihia te roa o te wātū
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Whakamahia he parenga kanohi whaimana mēnā kei te ruarua koe
Whakamutunga
Nō reira,Me whakamahi koe i te rama whero hei tiaki i ō kanohi?
Ahakoa he haumaru te whakamahi i te rama whero mō ngā kanohi, e taunakihia ana kia whakamahia ngā karu tiaki mō ngā maimoatanga kaha-nui, mō te kanohi rānei, hei whakaiti i te mamae me te whakarite kia haumaru te whakamahinga.
