He wāhanga matua ngā kāmera ahumahi i roto i ngā pūnaha tirohanga mīhini. Ko tā rātou mahi nui ko te huri i ngā tohu whatu ki ngā tohu hiko kua whakaritea mō ngā kāmera ahumahi iti whakamāramatanga teitei.
I roto i ngā pūnaha tirohanga mīhini, he rite te karu o te kāmera ahumahi ki te kanohi tangata, ā, ko tana mahi matua he arotahi i te ahua whatu ūnga ki te mata whakaahua-tairongo o te pūoko ahua (kāmera ahumahi).
Ka taea te tiki i ngā mōhiohio whakaahua katoa e tukatukahia ana e te pūnaha tirohanga mai i te karu o te kāmera ahumahi. Ko te kounga o tearotahi kāmera ahumahika pā tika ki te mahi whānui o te pūnaha tirohanga.
Hei momo taputapu whakaahua, ko ngā karāhe kāmera ahumahi te tikanga he pūnaha hopu whakaahua katoa me te pūtake hiko, te kāmera, me ētahi atu. Nō reira, ko te kōwhiringa o ngā karāhe kāmera ahumahi e whakahaeretia ana e ngā whakaritenga whānui o te pūnaha. I te nuinga o te wā, ka taea te tātari me te whakaaro mai i ngā āhuatanga e whai ake nei:
1.Te roanga ngaru me te arotahi whakanui, kāore rānei
He tino māmā te whakaū mēnā he arotahi whakanui, he arotahi pūmau rānei te mea e hiahiatia ana e te arotahi kāmera ahumahi. Tuatahi, me whakatau mēnā kei te arotahi te roangaru mahi o te arotahi kāmera ahumahi. I te wā e whakaahuahia ana, mēnā me whakarerekē te whakanui, me whakamahi he arotahi whakanui, ki te kore, he nui noa iho te arotahi pūmau.
Mō te roangaru mahi ongā arotahi kāmera ahumahi, ko te awhi mārama e kitea ana te mea tino noa, ā, he whakamahinga anō hoki kei roto i ētahi atu awhi. Me whai tikanga tātari anō? He mārama kotahi-tae, he mārama maha-tae rānei? Ka taea te karo pai i te awe o te mārama kotiti ke? Me paunatia whānuitia ngā take o runga ake nei i mua i te whakatau i te roangaru mahi o te arotahi.
Kōwhiria ngā arotahi kāmera ahumahi
2.Ka tukuna te kaupapa matua ki ngā tono motuhake
I runga anō i te whakamahinga tūturu, tera pea he whakaritenga motuhake. Me whakaū tuatahi ngā whakaritenga motuhake, hei tauira, mēnā he mahi ine, mēnā e hiahiatia ana he arotahi arotahi-rahi, mēnā he tino nui te hohonutanga o te arotahi o te ahua, me ētahi atu. Kāore i te tino arohia te hohonutanga o te arotahi, engari me whai whakaaro tetahi pūnaha tukatuka ahua ki tēnei.
3.Te tawhiti mahi me te roa arotahi
Ko te tawhiti mahi me te roa arotahi ka whakaarohia ngātahitia. Ko te whakaaro whānui ko te whakatau tuatahi i te taumira o te pūnaha, kātahi ka mārama ki te whakanui me te rahi o te pika CCD, kātahi ka mārama ki te tawhiti pea o te mea-ahua me ngā here hanganga ā-wāhi, kia taea ai te whakatau tata i te roa arotahi o te arotahi kāmera ahumahi.
Nō reira, e pā ana te roa o te arotahi o te karu kāmera ahumahi ki te tawhiti mahi o te karu kāmera ahumahi me te taumira o te kāmera (me te rahi o te pika CCD).
Ngā mea hei whakaaroaro māu i te wā e whiriwhiri ana i ngā arotahi kāmera ahumahi
4.Te rahi o te ahua me te kounga o te ahua
Te rahi o te ahua o tearotahi kāmera ahumahiMe hototahi te mata whakaahua-ā-ringa ki te rahi o te mata whakaahua-ā-ringa o te kāmera ahumahi, ā, me whai i te mātāpono "nui hei whakauru i te iti", arā, kaua e neke ake te mata whakaahua-ā-ringa o te kāmera i te rahi o te ahua e tohua ana e te arotahi, ki te kore, kāore e taea te whakamana i te kounga o te ahua o te tirohanga taha.
Ko ngā whakaritenga mō te kounga whakaahua e whakawhirinaki ana ki te MTF me te whakapōturitanga. I roto i ngā mahi ine, me aro nui ki te whakapōturitanga.
5.Te pūwero me te whakairinga arotahi
Ko te pūwhera o ngā karāhe kāmera ahumahi te mea nui e pā ana ki te kanapa o te mata whakaahua, engari i roto i te tirohanga mīhini o nāianei, ko te kanapa whakamutunga o te ahua ka whakatauhia e ngā āhuatanga maha pēnei i te pūwhera, ngā matūriki kāmera, te wā whakauru, te pūtake mārama, me ētahi atu. Nō reira, kia whiwhi ai i te kanapa o te ahua e hiahiatia ana, me maha ngā mahi whakatikatika e hiahiatia ana.
Ko te whakairinga arotahi o tētahi kāmera ahumahi e pā ana ki te hononga whakairinga i waenga i te arotahi me te kāmera, ā, me ōrite ngā mea e rua. Mēnā kāore e ōrite ngā mea e rua, me whakaaro ki te whakakapi.
Ngā āhuatanga hei whakaaroaro māu i te wā e whiriwhiri ana i ngā arotahi kāmera ahumahi
6.Te utu me te pakari o te hangarau
Mena i muri i te whakaaroaro whānui ki ngā āhuatanga o runga ake nei, ā, he maha ngā otinga e tutuki ana i ngā whakaritenga, ka taea e koe te whakaaro ki te utu whānui me te pakari hangarau, me te whakanui i aua mea.
PS: Tauira o te kōwhiringa arotahi
Kei raro nei ka hoatu e mātou he tauira mō te whiriwhiri i tētahi karāhe arotahi mō tētahi kāmera ahumahi. Hei tauira, me whai pūnaha tirohanga mīhini mō te kimi moniarotahi kāmera ahumahiKo ngā herenga e mōhiotia ana ko: ko te kāmera ahumahi CCD he 2/3 inihi, ko te rahi o te pika he 4.65μm, ko te C-mount, ko te tawhiti mahi he nui ake i te 200mm, ko te taumira pūnaha he 0.05mm, ā, ko te pūtake mārama he pūtake mārama LED mā.
Ko te tātaritanga taketake mō te whiriwhiri i ngā karaihe koia tēnei:
(1) Ko te arotahi e whakamahia ana me te pūtake mārama LED mā me noho i roto i te awhe mārama e kitea ana, kāore he hiahia whakanui, ā, ka taea te whiriwhiri i tētahi arotahi arotahi-pūmau.
(2) Mō te tirotiro ahumahi, me whai mahi ine, nō reira me iti te hē o te arotahi kua tīpakohia.
(3) Te tawhiti mahi me te roa arotahi:
Whakanuia o te ahua: M=4.65/(0.05 x 1000)=0.093
Roanga arotahi: F= L*M/(M+1)= 200*0.093/1.093=17mm
Mena e hiahiatia ana kia neke atu i te 200mm te tawhiti whāinga, me nui ake hoki te roa arotahi o te karāhe arotahi kua tīpakohia i te 17mm.
(4) Kaua te rahi o te ahua o te arotahi kua tīpakohia e iti iho i te whakatakotoranga CCD, arā, kia 2/3 inihi te iti rawa.
(5) Me whakamahi te turanga arotahi ki te turanga C kia taea ai te whakamahi me ngā kāmera ahumahi. Kāore he whakaritenga mō te whakatuwheratanga i tēnei wā.
Mā te tātari me te tatau i ngā āhuatanga o runga ake nei, ka taea e tātou te tiki i te "whakatakotoranga" tuatahi o ngā arotahi kāmera ahumahi: te roa arotahi neke atu i te 17mm, te arotahi pumau, te whānuitanga mārama e kitea ana, te C-mount, te hototahi ki te rahi pika CCD 2/3-inihi te iti rawa, me te iti o te whakapōturitanga o te ahua. I runga i ēnei whakaritenga, ka taea te whiriwhiri anō. Mena ka taea e ētahi arotahi te whakatutuki i ēnei whakaritenga, ka tūtohutia kia arotauhia ake, kia tīpakohia hoki te arotahi pai rawa atu.
Ngā Whakaaro Whakamutunga：
Kua oti i a ChuangAn te hoahoa me te hanga tuatahi ongā karaihe ā-ahumahi, e whakamahia ana i roto i ngā āhuatanga katoa o ngā tono ahumahi. Mena kei te hiahia koe, kei te hiahia rānei koe ki ngā karaihe ahumahi, tēnā whakapā mai ki a mātou i te wā e taea ai.
Wā tuku: Hanuere-21-2025
